1 /**
2  * Copyright © 2019 IBM Corporation
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #include "callouts.hpp"
17 
18 #include <phosphor-logging/log.hpp>
19 
20 #include <algorithm>
21 #include <map>
22 
23 namespace openpower
24 {
25 namespace pels
26 {
27 namespace src
28 {
29 
30 Callouts::Callouts(Stream& pel)
31 {
32     pel >> _subsectionID >> _subsectionFlags >> _subsectionWordLength;
33 
34     size_t currentLength = sizeof(_subsectionID) + sizeof(_subsectionFlags) +
35                            sizeof(_subsectionWordLength);
36 
37     while ((_subsectionWordLength * 4) > currentLength)
38     {
39         _callouts.emplace_back(new Callout(pel));
40         currentLength += _callouts.back()->flattenedSize();
41     }
42 }
43 
44 void Callouts::flatten(Stream& pel) const
45 {
46     pel << _subsectionID << _subsectionFlags << _subsectionWordLength;
47 
48     for (auto& callout : _callouts)
49     {
50         callout->flatten(pel);
51     }
52 }
53 
54 void Callouts::addCallout(std::unique_ptr<Callout> callout)
55 {
56     if (_callouts.size() < maxNumberOfCallouts)
57     {
58         _callouts.push_back(std::move(callout));
59 
60         _subsectionWordLength += _callouts.back()->flattenedSize() / 4;
61     }
62     else
63     {
64         using namespace phosphor::logging;
65         log<level::INFO>("Dropping PEL callout because at max");
66     }
67 
68     // Mapping including the  3 Medium levels as A,B and C
69     const std::map<std::uint8_t, int> priorities = {
70         {'H', 10}, {'M', 9}, {'A', 8}, {'B', 7}, {'C', 6}, {'L', 5}};
71 
72     auto sortPriority = [&priorities](const std::unique_ptr<Callout>& p1,
73                                       const std::unique_ptr<Callout>& p2) {
74         return priorities.at(p1->priority()) > priorities.at(p2->priority());
75     };
76 
77     std::sort(_callouts.begin(), _callouts.end(), sortPriority);
78 }
79 
80 } // namespace src
81 } // namespace pels
82 } // namespace openpower
83