After upgrade to brcmsai 8.1, the sdk running environment (container) recommended with mininum memory size as below
TH4/TD4(ltsw) uses 512MB
TH3 used 300MB
Helix4/TD2/TD3/TH/TH 256 MB
Base on this requirement, adjust the default syncd share memory size and set the memory size for special ACISs in platform_env.conf file for different types of Broadcom ASICs.
How I did it
Add the platform_env.conf file if none of it for broadcom platform (base on platform_asic file)
Add the 'SYNCD_SHM_SIZE' and set the value
for ltsw(TD4/TH4) devices set to 512M at least (update the platform_env.conf)
for Td2/TH2/TH devices set to 256M
for TH3 set to 300M
verify
How to verify it
verify the image with code fix
Check with UT
Check on lab devices
On a problematic device which cannot start successfully
Run with the command
$ cat /proc/linux-kernel-bde
Broadcom Device Enumerator (linux-kernel-bde)
Module parameters:
maxpayload=128
usemsi=0
dmasize=32M
himem=(null)
himemaddr=(null)
DMA Memory (kernel): 33554432 bytes, 0 used, 33554432 free, local mmap
No devices found
$ docker rm -f syncd
syncd
$ sudo /usr/bin/syncd.sh start
Cannot get Broadcom Chip Id. Skip set SYNCD_SHM_SIZE.
Creating new syncd container with HWSKU Force10-S6000
a4862129a7fea04f00ed71a88715eac65a41cdae51c3158f9cdd7de3ccc3dd31
$ docker inspect syncd | grep -i shm
"ShmSize": 67108864,
"Tag": "fix_8.1_shm_issue.67873427-9f7ca60a0e",
On Normal device
$ docker inspect syncd | grep -i shm
"ShmSize": 268435456,
"Tag": "fix_8.1_shm_issue.67873427-9f7ca60a0e"
change the config syncd_shm.ini to b85=128m
$ docker rm -f syncd
syncd
$ sudo /usr/bin/syncd.sh start
Creating new syncd container with HWSKU Force10-S6000
3209ffc1e5a7224b99640eb9a286c4c7aa66a2e6a322be32fb7fe2113bb9524c
$ docker inspect syncd | grep -i shm
"ShmSize": 134217728,
"Tag": "fix_8.1_shm_issue.67873427-9f7ca60a0e",
change the config under
/usr/share/sonic/device/x86_64-dell_s6000_s1220-r0/Force10-S6000/platform_env.conf
and run command
$ cat /usr/share/sonic/device/x86_64-dell_s6000_s1220-r0/platform_env.conf
SYNCD_SHM_SIZE=300m
$ sudo /usr/bin/syncd.sh start
Creating new syncd container with HWSKU Force10-S6000
897f6fcde1f669ad2caab7da4326079abd7e811bf73f018c6dacc24cf24bfda5
$ docker inspect syncd | grep -i shm
"ShmSize": 314572800,
"Tag": "fix_8.1_shm_issue.67873427-9f7ca60a0e",
Signed-off-by: richardyu-ms <richard.yu@microsoft.com>
#### Why I did it
Add platform_asic file to each platform folder in sonic-device-data package. The file content will be used as the ground truth of mapping from PLATFORM_STRING to switch ASIC family.
One use case of the mapping is to prevent installing a wrong image, which targets for other ASIC platforms. For example, currently we have several ONIE images naming as sonic-*.bin, it's easy to mistakenly install the wrong image. With this mapping built into image, we could fetch the ONIE platform string, and figure out which ASIC it is using, and check we are installing the correct image.
After this PR merged, each platform vendor has to add one mandatory text file `device/PLATFORM_VENDOR/PLATFORM_STRING/platform_asic`, with the content of the platform's switch ASIC family.
I will update https://github.com/Azure/SONiC/wiki/Porting-Guide after this PR is merged.
You can get a list of the ASIC platforms by `ls -b platform | cat`. Currently the options are
```
barefoot
broadcom
cavium
centec
centec-arm64
generic
innovium
marvell
marvell-arm64
marvell-armhf
mellanox
nephos
p4
vs
```
Also support
```
broadcom-dnx
```
#### How I did it
#### How to verify it
Test one image on DUT. And check the folders under `/usr/share/sonic/device`
