**- Why I did it**
To support dynamic buffer calculation.
This PR also depends on the following PRs for sub modules
- [sonic-swss: [buffermgr/bufferorch] Support dynamic buffer calculation #1338](https://github.com/Azure/sonic-swss/pull/1338)
- [sonic-swss-common: Dynamic buffer calculation #361](https://github.com/Azure/sonic-swss-common/pull/361)
- [sonic-utilities: Support dynamic buffer calculation #973](https://github.com/Azure/sonic-utilities/pull/973)
**- How I did it**
1. Introduce field `buffer_model` in `DEVICE_METADATA|localhost` to represent which buffer model is running in the system currently:
- `dynamic` for the dynamic buffer calculation model
- `traditional` for the traditional model in which the `pg_profile_lookup.ini` is used
2. Add the tables required for the feature:
- ASIC_TABLE in platform/\<vendor\>/asic_table.j2
- PERIPHERAL_TABLE in platform/\<vendor\>/peripheral_table.j2
- PORT_PERIPHERAL_TABLE on a per-platform basis in device/\<vendor\>/\<platform\>/port_peripheral_config.j2 for each platform with gearbox installed.
- DEFAULT_LOSSLESS_BUFFER_PARAMETER and LOSSLESS_TRAFFIC_PATTERN in files/build_templates/buffers_config.j2
- Add lossless PGs (3-4) for each port in files/build_templates/buffers_config.j2
3. Copy the newly introduced j2 files into the image and rendering them when the system starts
4. Update the CLI options for buffermgrd so that it can start with dynamic mode
5. Fetches the ASIC vendor name in orchagent:
- fetch the vendor name when creates the docker and pass it as a docker environment variable
- `buffermgrd` can use this passed-in variable
6. Clear buffer related tables from STATE_DB when swss docker starts
7. Update the src/sonic-config-engine/tests/sample_output/buffers-dell6100.json according to the buffer_config.j2
8. Remove buffer pool sizes for ingress pools and egress_lossy_pool
Update the buffer settings for dynamic buffer calculation
* Update the buffer size based on the latest excel
Signed-off-by: Stephen Sun <stephens@mellanox.com>
* Align the buffer configuration with the latest formula:
- reduce redundant "*2" in formula
- use port MTU for local sending the PFC frame and peer lossless MTU for peer sending lossless traffic
Buffer pool size updated accordingly.
Signed-off-by: Stephen Sun <stephens@mellanox.com>
update FW to xx_2000_3298
update SAI to 1.16.0
update Spectrum-1 and Spectrum-2 buffer pool size according to the new SDK default config change.
modified: ../../device/mellanox/x86_64-mlnx_msn2700-r0/ACS-MSN2700/buffers_defaults_t0.j2
modified: ../../device/mellanox/x86_64-mlnx_msn2700-r0/ACS-MSN2700/buffers_defaults_t1.j2
modified: ../../device/mellanox/x86_64-mlnx_msn3700-r0/ACS-MSN3700/buffers_defaults_t0.j2
modified: ../../device/mellanox/x86_64-mlnx_msn3700-r0/ACS-MSN3700/buffers_defaults_t1.j2
modified: fw.mk
modified: mlnx-sai.mk
modified: mlnx-sai/SAI-Implementation
modified: sdk-src/sx-kernel/Switch-SDK-drivers
modified: sdk.mk
signed-off by kebol@mellanox.com
* 1) DSCP 46 to 5; 2) ecn config for lossless traffic; 3) ecn on by default; 4) DWRR equal weight;
Signed-off-by: Wenda <wenni@microsoft.com>
* 1) link pg & queue 5 to lossy buffer profile; 2) ingress lossless alpha 1/8
Signed-off-by: Wenda <wenni@microsoft.com>
* Update the test case for qos & buffer json template
Signed-off-by: Wenda <wenni@microsoft.com>
* Migrate a7050-qx32 and s6000 to use pg_profile lookup architecture
Signed-off-by: Wenda <wenni@microsoft.com>
* Update pg headroom egress service pool for a7050-qx-32s, a7050-qx32, and s6000
Signed-off-by: Wenda <wenni@microsoft.com>
* Link queue 5 to lossy profile
Signed-off-by: Wenda <wenni@microsoft.com>
