openbcm

commit 91ddb9d7b78de139f5d62f8ae2298b2e42550114
parent 7d8816e038dfe0796aa365122f42c5db3f26c05e
Author: Broadcom SDK Release <sdk.releases@broadcom.com>
Date:   Tue, 29 Sep 2020 23:43:23 -0700

SDK-229674: The mirror ERSPAN IPv6 encapsulation for truncated payload should...

Devices: 56870_A0
Module: unknown
Symptom:
The mirror ERSPAN IPv6 encapsulation for truncated payload contains
incorrect payload length in the IPv6 length field.

The mirror ERSPAN IPv6 encapsulation for truncated payload should now
contain the correct payload length in IPv6 length field.

Diffstat:
M
sdk-6.5.16/src/bcm/esw/mirror.c
 | 
11
++++++-----

1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/sdk-6.5.16/src/bcm/esw/mirror.c b/sdk-6.5.16/src/bcm/esw/mirror.c
@@ -2166,7 +2166,7 @@ _bcm_td3_mirror_flex_editor_header_create(int unit, int edit_ctrl_id,
             |UDP SRC PORT       | UDP DEST PORT     |
             -----------------------------------------
             |LENGTH             | CHECK SUM         |
-            *****************************************/
+ */
 
             *p_profile_header = ((mirror_dest->version & 0xF) << NIBBLE_SHIFT_OFFSET) |
                                  IPV4_HEADER_LENGTH_WORDS;
@@ -2396,9 +2396,10 @@ _bcm_td3_mirror_flex_editor_header_create(int unit, int edit_ctrl_id,
                     } else if (_is_edit_ctrl_id_erspan(edit_ctrl_id)) {
                         truncate_ip_len_adjust = GRE_HEADER_LEN;
                     }
-                    if (_is_edit_ctrl_id_ipv6(edit_ctrl_id)) {
-                        truncate_ip_len_adjust += IPV6_HEADER_LEN;
-                    } else {
+                    /* len in IPv6 header is the payload length.
+                     * Adjust only for IPv4 header
+                     */
+                    if (!_is_edit_ctrl_id_ipv6(edit_ctrl_id)) {
                         truncate_ip_len_adjust += IPV4_HEADER_LEN;
                     }
                 }
@@ -3934,7 +3935,7 @@ _bcm_td3_mirror_flex_editor_header_decode(int unit, int edit_ctrl_id,
             |SOURCE IP ADDRESS                      |
             -----------------------------------------
             |DEST IP ADDRESS                        |
-            ****************************************/
+ */
 
             mirror_dest->version  = *p_profile_header >> NIBBLE_SHIFT_OFFSET;
             p_profile_header+=1;