From 6d2640b64a2d218dc0b11b9f6e797a1f027e708a Mon Sep 17 00:00:00 2001 From: vdahiya12 <67608553+vdahiya12@users.noreply.github.com> Date: Tue, 16 Jan 2024 11:34:19 -0800 Subject: [PATCH] [Arista] Update config.bcm of 7060_cx32s for handling 40g optics with unreliable los settings (#17768) For 40G optics there is SAI handling of T0 facing ports to be set with SR4 type and unreliable los set for a fixed set of ports. For this property to be invoked the requirement is set phy_unlos_msft=1 in config.bcm. This change is to meet the requirement and once this property is set, the los/interface type settings is applied by SAI on the required ports. Why I did it For Arista-7060CX-32S-Q32 T1, 40G ports RX_ERR minimalization during connected device reboot can be achieved by turning on Unreliable LOS and SR4 media_type for all ports which are connected to T0. The property phy_unlos_msft=1 is to exclusively enable this property. Microsoft ADO: 25941176 How I did it Changes in SAI and turning on property How to verify it Ran the changes on a testbed and verified configurations are as intended. with property admin@sonic2:~$ bcmcmd "phy diag xe8 dsc config" | grep -C 2 "LOS" Brdfe_on = 0 Media Type = 2 Unreliable LOS = 1 Scrambling Disable = 0 Lane Config from PCS = 0 without property admin@sonic:~$ bcmcmd "phy diag xe8 dsc config" | grep -C 2 "LOS" Brdfe_on = 0 Media Type = 0 Unreliable LOS = 0 Scrambling Disable = 0 Lane Config from PCS = 0 Signed-off-by: vaibhav-dahiya --- .../Arista-7060CX-32S-Q32/th-a7060-cx32s-32x40G-t1.config.bcm | 1 + src/sonic-device-data/tests/permitted_list | 1 + 2 files changed, 2 insertions(+) diff --git a/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-Q32/th-a7060-cx32s-32x40G-t1.config.bcm b/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-Q32/th-a7060-cx32s-32x40G-t1.config.bcm index a83fa589a538..2a1af354a7d0 100644 --- a/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-Q32/th-a7060-cx32s-32x40G-t1.config.bcm +++ b/device/arista/x86_64-arista_7060_cx32s/Arista-7060CX-32S-Q32/th-a7060-cx32s-32x40G-t1.config.bcm @@ -451,3 +451,4 @@ serdes_preemphasis_109=0x145c00 mmu_init_config="MSFT-TH-Tier1" phy_an_lt_msft=1 +phy_unlos_msft=1 diff --git a/src/sonic-device-data/tests/permitted_list b/src/sonic-device-data/tests/permitted_list index b3acbdfec1cc..253dfe27c3d9 100644 --- a/src/sonic-device-data/tests/permitted_list +++ b/src/sonic-device-data/tests/permitted_list @@ -326,6 +326,7 @@ phy_pcs_repeater l3_alpm_hit_skip sai_verify_incoming_chksum phy_an_lt_msft +phy_unlos_msft system_ref_core_clock_khz xflow_macsec_secure_chan_to_num_secure_assoc_encrypt xflow_macsec_secure_chan_to_num_secure_assoc_decrypt