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 <algorithm>
19 #include <map>
20 #include <phosphor-logging/log.hpp>
21 
22 namespace openpower
23 {
24 namespace pels
25 {
26 namespace src
27 {
28 
29 Callouts::Callouts(Stream& pel)
30 {
31     pel >> _subsectionID >> _subsectionFlags >> _subsectionWordLength;
32 
33     size_t currentLength = sizeof(_subsectionID) + sizeof(_subsectionFlags) +
34                            sizeof(_subsectionWordLength);
35 
36     while ((_subsectionWordLength * 4) > currentLength)
37     {
38         _callouts.emplace_back(new Callout(pel));
39         currentLength += _callouts.back()->flattenedSize();
40     }
41 }
42 
43 void Callouts::flatten(Stream& pel) const
44 {
45     pel << _subsectionID << _subsectionFlags << _subsectionWordLength;
46 
47     for (auto& callout : _callouts)
48     {
49         callout->flatten(pel);
50     }
51 }
52 
53 void Callouts::addCallout(std::unique_ptr<Callout> callout)
54 {
55     if (_callouts.size() < maxNumberOfCallouts)
56     {
57         _callouts.push_back(std::move(callout));
58 
59         _subsectionWordLength += _callouts.back()->flattenedSize() / 4;
60     }
61     else
62     {
63         using namespace phosphor::logging;
64         log<level::INFO>("Dropping PEL callout because at max");
65     }
66 
67     // Mapping including the  3 Medium levels as A,B and C
68     const std::map<std::uint8_t, int> priorities = {
69         {'H', 10}, {'M', 9}, {'A', 8}, {'B', 7}, {'C', 6}, {'L', 5}};
70 
71     auto sortPriority = [&priorities](const std::unique_ptr<Callout>& p1,
72                                       const std::unique_ptr<Callout>& p2) {
73         return priorities.at(p1->priority()) > priorities.at(p2->priority());
74     };
75 
76     std::sort(_callouts.begin(), _callouts.end(), sortPriority);
77 }
78 
79 } // namespace src
80 } // namespace pels
81 } // namespace openpower
82