tree 56406cb4550a3b9448c4990304aa7a2ccb81fcc4
parent 89a24e10571f4333b393566e884498531bfbe82a
author Potin Lai <potin.lai@quantatw.com> 1669169045 +0800
committer Potin Lai <potin.lai@quantatw.com> 1670290188 +0800

nvme_manager: add support of configurable smbus error retry

NVMe sometimes too busy to response smbus commands, this trigger fan
failsafe due to sensor failed (smbus error).

Add support for configurable smbus error retries to avoid sensor
failures by single smbus error.

readNvmeData() may return and remain NvmeSSD object uncreated when
Smbus error occurs at service startup, add extra NvmeSSD object check
before setSensorAvailability() to avoid service crashes.

Default retry is 0 retry if maxSmbusErrorRetry not exists in config.

Example of set maximum smbus error retry to 3 times:
{
    "config": [
        ...
    ],
    "threshold": [
        ...
    ],
    "maxSmbusErrorRetry": 3
}

Tested on Bletchley:

```
root@bletchley:~# journalctl _PID=4790 | grep -v SendSmbusRWCmdRAW
Nov 22 18:57:33 bletchley nvme_main[4790]: Send command code 0 fail!
Nov 22 18:57:33 bletchley nvme_main[4790]: getNVMeInfobyBusID failed, retry...
Nov 22 18:57:36 bletchley nvme_main[4790]: getNVMeInfobyBusID failed, retry...
Nov 22 18:57:39 bletchley nvme_main[4790]: getNVMeInfobyBusID failed, retry...
Nov 22 18:57:42 bletchley nvme_main[4790]: SSD plug.
Nov 22 18:57:42 bletchley nvme_main[4790]: Drive status is good but can not get data.
```

Signed-off-by: Potin Lai <potin.lai@quantatw.com>
Change-Id: Ibc95efc53a212e55dcd5c5cfa7a654839a13342d