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path: root/drivers/net/ixgbe/ixgbe_dcb.c
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Diffstat (limited to 'drivers/net/ixgbe/ixgbe_dcb.c')
-rw-r--r--drivers/net/ixgbe/ixgbe_dcb.c219
1 files changed, 0 insertions, 219 deletions
diff --git a/drivers/net/ixgbe/ixgbe_dcb.c b/drivers/net/ixgbe/ixgbe_dcb.c
index 9aea4f04bbd2..8bb9ddb6dffe 100644
--- a/drivers/net/ixgbe/ixgbe_dcb.c
+++ b/drivers/net/ixgbe/ixgbe_dcb.c
@@ -34,98 +34,6 @@
34#include "ixgbe_dcb_82599.h" 34#include "ixgbe_dcb_82599.h"
35 35
36/** 36/**
37 * ixgbe_dcb_config - Struct containing DCB settings.
38 * @dcb_config: Pointer to DCB config structure
39 *
40 * This function checks DCB rules for DCB settings.
41 * The following rules are checked:
42 * 1. The sum of bandwidth percentages of all Bandwidth Groups must total 100%.
43 * 2. The sum of bandwidth percentages of all Traffic Classes within a Bandwidth
44 * Group must total 100.
45 * 3. A Traffic Class should not be set to both Link Strict Priority
46 * and Group Strict Priority.
47 * 4. Link strict Bandwidth Groups can only have link strict traffic classes
48 * with zero bandwidth.
49 */
50s32 ixgbe_dcb_check_config(struct ixgbe_dcb_config *dcb_config)
51{
52 struct tc_bw_alloc *p;
53 s32 ret_val = 0;
54 u8 i, j, bw = 0, bw_id;
55 u8 bw_sum[2][MAX_BW_GROUP];
56 bool link_strict[2][MAX_BW_GROUP];
57
58 memset(bw_sum, 0, sizeof(bw_sum));
59 memset(link_strict, 0, sizeof(link_strict));
60
61 /* First Tx, then Rx */
62 for (i = 0; i < 2; i++) {
63 /* Check each traffic class for rule violation */
64 for (j = 0; j < MAX_TRAFFIC_CLASS; j++) {
65 p = &dcb_config->tc_config[j].path[i];
66
67 bw = p->bwg_percent;
68 bw_id = p->bwg_id;
69
70 if (bw_id >= MAX_BW_GROUP) {
71 ret_val = DCB_ERR_CONFIG;
72 goto err_config;
73 }
74 if (p->prio_type == prio_link) {
75 link_strict[i][bw_id] = true;
76 /* Link strict should have zero bandwidth */
77 if (bw) {
78 ret_val = DCB_ERR_LS_BW_NONZERO;
79 goto err_config;
80 }
81 } else if (!bw) {
82 /*
83 * Traffic classes without link strict
84 * should have non-zero bandwidth.
85 */
86 ret_val = DCB_ERR_TC_BW_ZERO;
87 goto err_config;
88 }
89 bw_sum[i][bw_id] += bw;
90 }
91
92 bw = 0;
93
94 /* Check each bandwidth group for rule violation */
95 for (j = 0; j < MAX_BW_GROUP; j++) {
96 bw += dcb_config->bw_percentage[i][j];
97 /*
98 * Sum of bandwidth percentages of all traffic classes
99 * within a Bandwidth Group must total 100 except for
100 * link strict group (zero bandwidth).
101 */
102 if (link_strict[i][j]) {
103 if (bw_sum[i][j]) {
104 /*
105 * Link strict group should have zero
106 * bandwidth.
107 */
108 ret_val = DCB_ERR_LS_BWG_NONZERO;
109 goto err_config;
110 }
111 } else if (bw_sum[i][j] != BW_PERCENT &&
112 bw_sum[i][j] != 0) {
113 ret_val = DCB_ERR_TC_BW;
114 goto err_config;
115 }
116 }
117
118 if (bw != BW_PERCENT) {
119 ret_val = DCB_ERR_BW_GROUP;
120 goto err_config;
121 }
122 }
123
124err_config:
125 return ret_val;
126}
127
128/**
129 * ixgbe_dcb_calculate_tc_credits - Calculates traffic class credits 37 * ixgbe_dcb_calculate_tc_credits - Calculates traffic class credits
130 * @ixgbe_dcb_config: Struct containing DCB settings. 38 * @ixgbe_dcb_config: Struct containing DCB settings.
131 * @direction: Configuring either Tx or Rx. 39 * @direction: Configuring either Tx or Rx.
@@ -203,133 +111,6 @@ out:
203} 111}
204 112
205/** 113/**
206 * ixgbe_dcb_get_tc_stats - Returns status of each traffic class
207 * @hw: pointer to hardware structure
208 * @stats: pointer to statistics structure
209 * @tc_count: Number of elements in bwg_array.
210 *
211 * This function returns the status data for each of the Traffic Classes in use.
212 */
213s32 ixgbe_dcb_get_tc_stats(struct ixgbe_hw *hw, struct ixgbe_hw_stats *stats,
214 u8 tc_count)
215{
216 s32 ret = 0;
217 if (hw->mac.type == ixgbe_mac_82598EB)
218 ret = ixgbe_dcb_get_tc_stats_82598(hw, stats, tc_count);
219 else if (hw->mac.type == ixgbe_mac_82599EB)
220 ret = ixgbe_dcb_get_tc_stats_82599(hw, stats, tc_count);
221 return ret;
222}
223
224/**
225 * ixgbe_dcb_get_pfc_stats - Returns CBFC status of each traffic class
226 * hw - pointer to hardware structure
227 * stats - pointer to statistics structure
228 * tc_count - Number of elements in bwg_array.
229 *
230 * This function returns the CBFC status data for each of the Traffic Classes.
231 */
232s32 ixgbe_dcb_get_pfc_stats(struct ixgbe_hw *hw, struct ixgbe_hw_stats *stats,
233 u8 tc_count)
234{
235 s32 ret = 0;
236 if (hw->mac.type == ixgbe_mac_82598EB)
237 ret = ixgbe_dcb_get_pfc_stats_82598(hw, stats, tc_count);
238 else if (hw->mac.type == ixgbe_mac_82599EB)
239 ret = ixgbe_dcb_get_pfc_stats_82599(hw, stats, tc_count);
240 return ret;
241}
242
243/**
244 * ixgbe_dcb_config_rx_arbiter - Config Rx arbiter
245 * @hw: pointer to hardware structure
246 * @dcb_config: pointer to ixgbe_dcb_config structure
247 *
248 * Configure Rx Data Arbiter and credits for each traffic class.
249 */
250s32 ixgbe_dcb_config_rx_arbiter(struct ixgbe_hw *hw,
251 struct ixgbe_dcb_config *dcb_config)
252{
253 s32 ret = 0;
254 if (hw->mac.type == ixgbe_mac_82598EB)
255 ret = ixgbe_dcb_config_rx_arbiter_82598(hw, dcb_config);
256 else if (hw->mac.type == ixgbe_mac_82599EB)
257 ret = ixgbe_dcb_config_rx_arbiter_82599(hw, dcb_config);
258 return ret;
259}
260
261/**
262 * ixgbe_dcb_config_tx_desc_arbiter - Config Tx Desc arbiter
263 * @hw: pointer to hardware structure
264 * @dcb_config: pointer to ixgbe_dcb_config structure
265 *
266 * Configure Tx Descriptor Arbiter and credits for each traffic class.
267 */
268s32 ixgbe_dcb_config_tx_desc_arbiter(struct ixgbe_hw *hw,
269 struct ixgbe_dcb_config *dcb_config)
270{
271 s32 ret = 0;
272 if (hw->mac.type == ixgbe_mac_82598EB)
273 ret = ixgbe_dcb_config_tx_desc_arbiter_82598(hw, dcb_config);
274 else if (hw->mac.type == ixgbe_mac_82599EB)
275 ret = ixgbe_dcb_config_tx_desc_arbiter_82599(hw, dcb_config);
276 return ret;
277}
278
279/**
280 * ixgbe_dcb_config_tx_data_arbiter - Config Tx data arbiter
281 * @hw: pointer to hardware structure
282 * @dcb_config: pointer to ixgbe_dcb_config structure
283 *
284 * Configure Tx Data Arbiter and credits for each traffic class.
285 */
286s32 ixgbe_dcb_config_tx_data_arbiter(struct ixgbe_hw *hw,
287 struct ixgbe_dcb_config *dcb_config)
288{
289 s32 ret = 0;
290 if (hw->mac.type == ixgbe_mac_82598EB)
291 ret = ixgbe_dcb_config_tx_data_arbiter_82598(hw, dcb_config);
292 else if (hw->mac.type == ixgbe_mac_82599EB)
293 ret = ixgbe_dcb_config_tx_data_arbiter_82599(hw, dcb_config);
294 return ret;
295}
296
297/**
298 * ixgbe_dcb_config_pfc - Config priority flow control
299 * @hw: pointer to hardware structure
300 * @dcb_config: pointer to ixgbe_dcb_config structure
301 *
302 * Configure Priority Flow Control for each traffic class.
303 */
304s32 ixgbe_dcb_config_pfc(struct ixgbe_hw *hw,
305 struct ixgbe_dcb_config *dcb_config)
306{
307 s32 ret = 0;
308 if (hw->mac.type == ixgbe_mac_82598EB)
309 ret = ixgbe_dcb_config_pfc_82598(hw, dcb_config);
310 else if (hw->mac.type == ixgbe_mac_82599EB)
311 ret = ixgbe_dcb_config_pfc_82599(hw, dcb_config);
312 return ret;
313}
314
315/**
316 * ixgbe_dcb_config_tc_stats - Config traffic class statistics
317 * @hw: pointer to hardware structure
318 *
319 * Configure queue statistics registers, all queues belonging to same traffic
320 * class uses a single set of queue statistics counters.
321 */
322s32 ixgbe_dcb_config_tc_stats(struct ixgbe_hw *hw)
323{
324 s32 ret = 0;
325 if (hw->mac.type == ixgbe_mac_82598EB)
326 ret = ixgbe_dcb_config_tc_stats_82598(hw);
327 else if (hw->mac.type == ixgbe_mac_82599EB)
328 ret = ixgbe_dcb_config_tc_stats_82599(hw);
329 return ret;
330}
331
332/**
333 * ixgbe_dcb_hw_config - Config and enable DCB 114 * ixgbe_dcb_hw_config - Config and enable DCB
334 * @hw: pointer to hardware structure 115 * @hw: pointer to hardware structure
335 * @dcb_config: pointer to ixgbe_dcb_config structure 116 * @dcb_config: pointer to ixgbe_dcb_config structure
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-22 18:59:42 -0500