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b12aaee5 SS |
1 | /* SPDX-License-Identifier: LGPL-2.1+ |
2 | * Copyright © 2020 VMware, Inc. */ | |
3 | ||
4d7ddaf9 YW |
4 | #include <linux/pkt_sched.h> |
5 | ||
6 | #include "parse-util.h" | |
b12aaee5 SS |
7 | #include "qdisc.h" |
8 | #include "qfq.h" | |
4d7ddaf9 YW |
9 | #include "string-util.h" |
10 | ||
11 | #define QFQ_MAX_WEIGHT (1 << 10) | |
12 | #define QFQ_MIN_MAX_PACKET 512 | |
13 | #define QFQ_MAX_MAX_PACKET (1 << 16) | |
b12aaee5 SS |
14 | |
15 | const QDiscVTable qfq_vtable = { | |
16 | .object_size = sizeof(QuickFairQueueing), | |
17 | .tca_kind = "qfq", | |
18 | }; | |
4d7ddaf9 YW |
19 | |
20 | static int quick_fair_queueing_class_fill_message(Link *link, TClass *tclass, sd_netlink_message *req) { | |
21 | QuickFairQueueingClass *qfq; | |
22 | int r; | |
23 | ||
24 | assert(link); | |
25 | assert(tclass); | |
26 | assert(req); | |
27 | ||
28 | qfq = TCLASS_TO_QFQ(tclass); | |
29 | ||
30 | r = sd_netlink_message_open_container_union(req, TCA_OPTIONS, "qfq"); | |
31 | if (r < 0) | |
32 | return log_link_error_errno(link, r, "Could not open container TCA_OPTIONS: %m"); | |
33 | ||
34 | if (qfq->weight > 0) { | |
35 | r = sd_netlink_message_append_u32(req, TCA_QFQ_WEIGHT, qfq->weight); | |
36 | if (r < 0) | |
37 | return log_link_error_errno(link, r, "Could not append TCA_QFQ_WEIGHT attribute: %m"); | |
38 | } | |
39 | ||
40 | if (qfq->max_packet > 0) { | |
41 | r = sd_netlink_message_append_u32(req, TCA_QFQ_LMAX, qfq->max_packet); | |
42 | if (r < 0) | |
43 | return log_link_error_errno(link, r, "Could not append TCA_QFQ_LMAX attribute: %m"); | |
44 | } | |
45 | ||
46 | r = sd_netlink_message_close_container(req); | |
47 | if (r < 0) | |
48 | return log_link_error_errno(link, r, "Could not close container TCA_OPTIONS: %m"); | |
49 | return 0; | |
50 | } | |
51 | ||
52 | int config_parse_quick_fair_queueing_weight( | |
53 | const char *unit, | |
54 | const char *filename, | |
55 | unsigned line, | |
56 | const char *section, | |
57 | unsigned section_line, | |
58 | const char *lvalue, | |
59 | int ltype, | |
60 | const char *rvalue, | |
61 | void *data, | |
62 | void *userdata) { | |
63 | ||
64 | _cleanup_(tclass_free_or_set_invalidp) TClass *tclass = NULL; | |
65 | QuickFairQueueingClass *qfq; | |
66 | Network *network = data; | |
67 | uint32_t v; | |
68 | int r; | |
69 | ||
70 | assert(filename); | |
71 | assert(lvalue); | |
72 | assert(rvalue); | |
73 | assert(data); | |
74 | ||
75 | r = tclass_new_static(TCLASS_KIND_QFQ, network, filename, section_line, &tclass); | |
76 | if (r < 0) | |
77 | return log_syntax(unit, LOG_ERR, filename, line, r, | |
78 | "Failed to create traffic control class, ignoring assignment: %m"); | |
79 | ||
80 | qfq = TCLASS_TO_QFQ(tclass); | |
81 | ||
82 | if (isempty(rvalue)) { | |
83 | qfq->weight = 0; | |
84 | tclass = NULL; | |
85 | return 0; | |
86 | } | |
87 | ||
88 | r = safe_atou32(rvalue, &v); | |
89 | if (r < 0) { | |
90 | log_syntax(unit, LOG_ERR, filename, line, r, | |
91 | "Failed to parse '%s=', ignoring assignment: %s", | |
92 | lvalue, rvalue); | |
93 | return 0; | |
94 | } | |
95 | ||
96 | if (v == 0 || v > QFQ_MAX_WEIGHT) { | |
97 | log_syntax(unit, LOG_ERR, filename, line, 0, | |
98 | "Invalid '%s=', ignoring assignment: %s", | |
99 | lvalue, rvalue); | |
100 | return 0; | |
101 | } | |
102 | ||
103 | qfq->weight = v; | |
104 | tclass = NULL; | |
105 | ||
106 | return 0; | |
107 | } | |
108 | ||
109 | int config_parse_quick_fair_queueing_max_packet( | |
110 | const char *unit, | |
111 | const char *filename, | |
112 | unsigned line, | |
113 | const char *section, | |
114 | unsigned section_line, | |
115 | const char *lvalue, | |
116 | int ltype, | |
117 | const char *rvalue, | |
118 | void *data, | |
119 | void *userdata) { | |
120 | ||
121 | _cleanup_(tclass_free_or_set_invalidp) TClass *tclass = NULL; | |
122 | QuickFairQueueingClass *qfq; | |
123 | Network *network = data; | |
124 | uint64_t v; | |
125 | int r; | |
126 | ||
127 | assert(filename); | |
128 | assert(lvalue); | |
129 | assert(rvalue); | |
130 | assert(data); | |
131 | ||
132 | r = tclass_new_static(TCLASS_KIND_QFQ, network, filename, section_line, &tclass); | |
133 | if (r < 0) | |
134 | return log_syntax(unit, LOG_ERR, filename, line, r, | |
135 | "Failed to create traffic control class, ignoring assignment: %m"); | |
136 | ||
137 | qfq = TCLASS_TO_QFQ(tclass); | |
138 | ||
139 | if (isempty(rvalue)) { | |
140 | qfq->max_packet = 0; | |
141 | tclass = NULL; | |
142 | return 0; | |
143 | } | |
144 | ||
145 | r = parse_size(rvalue, 1000, &v); | |
146 | if (r < 0) { | |
147 | log_syntax(unit, LOG_ERR, filename, line, r, | |
148 | "Failed to parse '%s=', ignoring assignment: %s", | |
149 | lvalue, rvalue); | |
150 | return 0; | |
151 | } | |
152 | ||
153 | if (v < QFQ_MIN_MAX_PACKET || v > QFQ_MAX_MAX_PACKET) { | |
154 | log_syntax(unit, LOG_ERR, filename, line, 0, | |
155 | "Invalid '%s=', ignoring assignment: %s", | |
156 | lvalue, rvalue); | |
157 | return 0; | |
158 | } | |
159 | ||
160 | qfq->max_packet = (uint32_t) v; | |
161 | tclass = NULL; | |
162 | ||
163 | return 0; | |
164 | } | |
165 | ||
166 | const TClassVTable qfq_tclass_vtable = { | |
167 | .object_size = sizeof(QuickFairQueueingClass), | |
168 | .tca_kind = "qfq", | |
169 | .fill_message = quick_fair_queueing_class_fill_message, | |
170 | }; |