[SWDEV-538308] CPER CLI 20 limit bug (#499)

The bug was reproduced like this.

In terminal #1, run command:
sudo amd-smi ras --cper --gpu 6 --severity all --folder /tmp/cper_dump --follow 

In terminal #2, inject errors:
while true; do sudo amdgpuras -b 7 -s 1 -m 6 -t 2; sleep 2; done

The terminal #1 starts dumping cper entry information that it captures. After 20 entries have been captured, open terminal #3 and run same command as terminal #1:
sudo amd-smi ras --cper --gpu 6 --severity all --folder /tmp/cper_dump --follow 

From terminal #3, there will be no output, even when terminal #1 continues capturing and printing information.

The fix:

Since we already have more than 20 CPER entries available in the GPU buffer, when we run the command from terminal #3 to start capturing from the beginning and pass 20 buffers to copy entries to, the C++ API returns a code saying there is more data available.

The Python CLI should not treat this as an error, but should continue to print what the API returned.

---------

Signed-off-by: Oosman Saeed <oossaeed@amd.com>

src/amd_smi/amd_smi_cper.cc

@@ -420,7 +420,7 @@ amdsmi_status_t amdsmi_get_gpu_cper_entries_by_path(
         if(((1 << header->error_severity) & severity_mask) !=
             static_cast<uint32_t>(1 << header->error_severity)) {
             ss << __PRETTY_FUNCTION__ << "\n:" << __LINE__ << "[CPER] cper header rejected with severity: 0x"
-                << std::hex << (1 << header->error_severity) << ", given severity_mask: 0x"
+                << std::hex << (header->error_severity) << ", given severity_mask: 0x"
                 << std::hex << severity_mask << ", record_length:"
                 << std::dec << header->record_length;
             LOG_DEBUG(ss);
@@ -428,7 +428,7 @@ amdsmi_status_t amdsmi_get_gpu_cper_entries_by_path(
         }
         else {
             ss << __PRETTY_FUNCTION__ << "\n:" << __LINE__ << "[CPER] cper header accepted with severity: 0x"
-                << std::hex << (1 << header->error_severity) << ", given severity_mask: 0x"
+                << std::hex << (header->error_severity) << ", given severity_mask: 0x"
                 << std::hex << severity_mask << ", record_length:"
                 << std::dec << header->record_length;
             LOG_DEBUG(ss);
@@ -468,9 +468,9 @@ amdsmi_status_t amdsmi_get_gpu_cper_entries_by_path(
    *buf_size = data_idx;
 
     ss << __PRETTY_FUNCTION__ << "\n:" << __LINE__
-        << "[CPER] *entry_count: " << entry_count
-        << ", *cursor: " << cursor
-        << ", *buf_size: " << buf_size;
+        << "[CPER] *entry_count: " << *entry_count
+        << ", *cursor: " << *cursor
+        << ", *buf_size: " << *buf_size;
 
     LOG_DEBUG(ss);
     return AMDSMI_STATUS_SUCCESS;