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1// SPDX-License-Identifier: GPL-2.0
2/* Copyright (C) 2018-2020, Intel Corporation. */
3
4/* flow director ethtool support for ice */
5
6#include "ice.h"
7#include "ice_lib.h"
8#include "ice_flow.h"
9
10static struct in6_addr full_ipv6_addr_mask = {
11 .in6_u = {
12 .u6_addr8 = {
13 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
14 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
15 }
16 }
17};
18
19static struct in6_addr zero_ipv6_addr_mask = {
20 .in6_u = {
21 .u6_addr8 = {
22 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
23 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
24 }
25 }
26};
27
28/* calls to ice_flow_add_prof require the number of segments in the array
29 * for segs_cnt. In this code that is one more than the index.
30 */
31#define TNL_SEG_CNT(_TNL_) ((_TNL_) + 1)
32
33/**
34 * ice_fltr_to_ethtool_flow - convert filter type values to ethtool
35 * flow type values
36 * @flow: filter type to be converted
37 *
38 * Returns the corresponding ethtool flow type.
39 */
40static int ice_fltr_to_ethtool_flow(enum ice_fltr_ptype flow)
41{
42 switch (flow) {
43 case ICE_FLTR_PTYPE_NONF_IPV4_TCP:
44 return TCP_V4_FLOW;
45 case ICE_FLTR_PTYPE_NONF_IPV4_UDP:
46 return UDP_V4_FLOW;
47 case ICE_FLTR_PTYPE_NONF_IPV4_SCTP:
48 return SCTP_V4_FLOW;
49 case ICE_FLTR_PTYPE_NONF_IPV4_OTHER:
50 return IPV4_USER_FLOW;
51 case ICE_FLTR_PTYPE_NONF_IPV6_TCP:
52 return TCP_V6_FLOW;
53 case ICE_FLTR_PTYPE_NONF_IPV6_UDP:
54 return UDP_V6_FLOW;
55 case ICE_FLTR_PTYPE_NONF_IPV6_SCTP:
56 return SCTP_V6_FLOW;
57 case ICE_FLTR_PTYPE_NONF_IPV6_OTHER:
58 return IPV6_USER_FLOW;
59 default:
60 /* 0 is undefined ethtool flow */
61 return 0;
62 }
63}
64
65/**
66 * ice_ethtool_flow_to_fltr - convert ethtool flow type to filter enum
67 * @eth: Ethtool flow type to be converted
68 *
69 * Returns flow enum
70 */
71static enum ice_fltr_ptype ice_ethtool_flow_to_fltr(int eth)
72{
73 switch (eth) {
74 case TCP_V4_FLOW:
75 return ICE_FLTR_PTYPE_NONF_IPV4_TCP;
76 case UDP_V4_FLOW:
77 return ICE_FLTR_PTYPE_NONF_IPV4_UDP;
78 case SCTP_V4_FLOW:
79 return ICE_FLTR_PTYPE_NONF_IPV4_SCTP;
80 case IPV4_USER_FLOW:
81 return ICE_FLTR_PTYPE_NONF_IPV4_OTHER;
82 case TCP_V6_FLOW:
83 return ICE_FLTR_PTYPE_NONF_IPV6_TCP;
84 case UDP_V6_FLOW:
85 return ICE_FLTR_PTYPE_NONF_IPV6_UDP;
86 case SCTP_V6_FLOW:
87 return ICE_FLTR_PTYPE_NONF_IPV6_SCTP;
88 case IPV6_USER_FLOW:
89 return ICE_FLTR_PTYPE_NONF_IPV6_OTHER;
90 default:
91 return ICE_FLTR_PTYPE_NONF_NONE;
92 }
93}
94
95/**
96 * ice_is_mask_valid - check mask field set
97 * @mask: full mask to check
98 * @field: field for which mask should be valid
99 *
100 * If the mask is fully set return true. If it is not valid for field return
101 * false.
102 */
103static bool ice_is_mask_valid(u64 mask, u64 field)
104{
105 return (mask & field) == field;
106}
107
108/**
109 * ice_get_ethtool_fdir_entry - fill ethtool structure with fdir filter data
110 * @hw: hardware structure that contains filter list
111 * @cmd: ethtool command data structure to receive the filter data
112 *
113 * Returns 0 on success and -EINVAL on failure
114 */
115int ice_get_ethtool_fdir_entry(struct ice_hw *hw, struct ethtool_rxnfc *cmd)
116{
117 struct ethtool_rx_flow_spec *fsp;
118 struct ice_fdir_fltr *rule;
119 int ret = 0;
120 u16 idx;
121
122 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
123
124 mutex_lock(&hw->fdir_fltr_lock);
125
126 rule = ice_fdir_find_fltr_by_idx(hw, fsp->location);
127
128 if (!rule || fsp->location != rule->fltr_id) {
129 ret = -EINVAL;
130 goto release_lock;
131 }
132
133 fsp->flow_type = ice_fltr_to_ethtool_flow(rule->flow_type);
134
135 memset(&fsp->m_u, 0, sizeof(fsp->m_u));
136 memset(&fsp->m_ext, 0, sizeof(fsp->m_ext));
137
138 switch (fsp->flow_type) {
139 case IPV4_USER_FLOW:
140 fsp->h_u.usr_ip4_spec.ip_ver = ETH_RX_NFC_IP4;
141 fsp->h_u.usr_ip4_spec.proto = 0;
142 fsp->h_u.usr_ip4_spec.l4_4_bytes = rule->ip.v4.l4_header;
143 fsp->h_u.usr_ip4_spec.tos = rule->ip.v4.tos;
144 fsp->h_u.usr_ip4_spec.ip4src = rule->ip.v4.src_ip;
145 fsp->h_u.usr_ip4_spec.ip4dst = rule->ip.v4.dst_ip;
146 fsp->m_u.usr_ip4_spec.ip4src = rule->mask.v4.src_ip;
147 fsp->m_u.usr_ip4_spec.ip4dst = rule->mask.v4.dst_ip;
148 fsp->m_u.usr_ip4_spec.ip_ver = 0xFF;
149 fsp->m_u.usr_ip4_spec.proto = 0;
150 fsp->m_u.usr_ip4_spec.l4_4_bytes = rule->mask.v4.l4_header;
151 fsp->m_u.usr_ip4_spec.tos = rule->mask.v4.tos;
152 break;
153 case TCP_V4_FLOW:
154 case UDP_V4_FLOW:
155 case SCTP_V4_FLOW:
156 fsp->h_u.tcp_ip4_spec.psrc = rule->ip.v4.src_port;
157 fsp->h_u.tcp_ip4_spec.pdst = rule->ip.v4.dst_port;
158 fsp->h_u.tcp_ip4_spec.ip4src = rule->ip.v4.src_ip;
159 fsp->h_u.tcp_ip4_spec.ip4dst = rule->ip.v4.dst_ip;
160 fsp->m_u.tcp_ip4_spec.psrc = rule->mask.v4.src_port;
161 fsp->m_u.tcp_ip4_spec.pdst = rule->mask.v4.dst_port;
162 fsp->m_u.tcp_ip4_spec.ip4src = rule->mask.v4.src_ip;
163 fsp->m_u.tcp_ip4_spec.ip4dst = rule->mask.v4.dst_ip;
164 break;
165 case IPV6_USER_FLOW:
166 fsp->h_u.usr_ip6_spec.l4_4_bytes = rule->ip.v6.l4_header;
167 fsp->h_u.usr_ip6_spec.tclass = rule->ip.v6.tc;
168 fsp->h_u.usr_ip6_spec.l4_proto = rule->ip.v6.proto;
169 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->ip.v6.src_ip,
170 sizeof(struct in6_addr));
171 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->ip.v6.dst_ip,
172 sizeof(struct in6_addr));
173 memcpy(fsp->m_u.tcp_ip6_spec.ip6src, rule->mask.v6.src_ip,
174 sizeof(struct in6_addr));
175 memcpy(fsp->m_u.tcp_ip6_spec.ip6dst, rule->mask.v6.dst_ip,
176 sizeof(struct in6_addr));
177 fsp->m_u.usr_ip6_spec.l4_4_bytes = rule->mask.v6.l4_header;
178 fsp->m_u.usr_ip6_spec.tclass = rule->mask.v6.tc;
179 fsp->m_u.usr_ip6_spec.l4_proto = rule->mask.v6.proto;
180 break;
181 case TCP_V6_FLOW:
182 case UDP_V6_FLOW:
183 case SCTP_V6_FLOW:
184 memcpy(fsp->h_u.tcp_ip6_spec.ip6src, rule->ip.v6.src_ip,
185 sizeof(struct in6_addr));
186 memcpy(fsp->h_u.tcp_ip6_spec.ip6dst, rule->ip.v6.dst_ip,
187 sizeof(struct in6_addr));
188 fsp->h_u.tcp_ip6_spec.psrc = rule->ip.v6.src_port;
189 fsp->h_u.tcp_ip6_spec.pdst = rule->ip.v6.dst_port;
190 memcpy(fsp->m_u.tcp_ip6_spec.ip6src,
191 rule->mask.v6.src_ip,
192 sizeof(struct in6_addr));
193 memcpy(fsp->m_u.tcp_ip6_spec.ip6dst,
194 rule->mask.v6.dst_ip,
195 sizeof(struct in6_addr));
196 fsp->m_u.tcp_ip6_spec.psrc = rule->mask.v6.src_port;
197 fsp->m_u.tcp_ip6_spec.pdst = rule->mask.v6.dst_port;
198 fsp->h_u.tcp_ip6_spec.tclass = rule->ip.v6.tc;
199 fsp->m_u.tcp_ip6_spec.tclass = rule->mask.v6.tc;
200 break;
201 default:
202 break;
203 }
204
205 if (rule->dest_ctl == ICE_FLTR_PRGM_DESC_DEST_DROP_PKT)
206 fsp->ring_cookie = RX_CLS_FLOW_DISC;
207 else
208 fsp->ring_cookie = rule->q_index;
209
210 idx = ice_ethtool_flow_to_fltr(fsp->flow_type);
211 if (idx == ICE_FLTR_PTYPE_NONF_NONE) {
212 dev_err(ice_hw_to_dev(hw), "Missing input index for flow_type %d\n",
213 rule->flow_type);
214 ret = -EINVAL;
215 }
216
217release_lock:
218 mutex_unlock(&hw->fdir_fltr_lock);
219 return ret;
220}
221
222/**
223 * ice_get_fdir_fltr_ids - fill buffer with filter IDs of active filters
224 * @hw: hardware structure containing the filter list
225 * @cmd: ethtool command data structure
226 * @rule_locs: ethtool array passed in from OS to receive filter IDs
227 *
228 * Returns 0 as expected for success by ethtool
229 */
230int
231ice_get_fdir_fltr_ids(struct ice_hw *hw, struct ethtool_rxnfc *cmd,
232 u32 *rule_locs)
233{
234 struct ice_fdir_fltr *f_rule;
235 unsigned int cnt = 0;
236 int val = 0;
237
238 /* report total rule count */
239 cmd->data = ice_get_fdir_cnt_all(hw);
240
241 mutex_lock(&hw->fdir_fltr_lock);
242
243 list_for_each_entry(f_rule, &hw->fdir_list_head, fltr_node) {
244 if (cnt == cmd->rule_cnt) {
245 val = -EMSGSIZE;
246 goto release_lock;
247 }
248 rule_locs[cnt] = f_rule->fltr_id;
249 cnt++;
250 }
251
252release_lock:
253 mutex_unlock(&hw->fdir_fltr_lock);
254 if (!val)
255 cmd->rule_cnt = cnt;
256 return val;
257}
258
259/**
260 * ice_fdir_get_hw_prof - return the ice_fd_hw_proc associated with a flow
261 * @hw: hardware structure containing the filter list
262 * @blk: hardware block
263 * @flow: FDir flow type to release
264 */
265static struct ice_fd_hw_prof *
266ice_fdir_get_hw_prof(struct ice_hw *hw, enum ice_block blk, int flow)
267{
268 if (blk == ICE_BLK_FD && hw->fdir_prof)
269 return hw->fdir_prof[flow];
270
271 return NULL;
272}
273
274/**
275 * ice_fdir_erase_flow_from_hw - remove a flow from the HW profile tables
276 * @hw: hardware structure containing the filter list
277 * @blk: hardware block
278 * @flow: FDir flow type to release
279 */
280static void
281ice_fdir_erase_flow_from_hw(struct ice_hw *hw, enum ice_block blk, int flow)
282{
283 struct ice_fd_hw_prof *prof = ice_fdir_get_hw_prof(hw, blk, flow);
284 int tun;
285
286 if (!prof)
287 return;
288
289 for (tun = 0; tun < ICE_FD_HW_SEG_MAX; tun++) {
290 u64 prof_id;
291 int j;
292
293 prof_id = flow + tun * ICE_FLTR_PTYPE_MAX;
294 for (j = 0; j < prof->cnt; j++) {
295 u16 vsi_num;
296
297 if (!prof->entry_h[j][tun] || !prof->vsi_h[j])
298 continue;
299 vsi_num = ice_get_hw_vsi_num(hw, prof->vsi_h[j]);
300 ice_rem_prof_id_flow(hw, blk, vsi_num, prof_id);
301 ice_flow_rem_entry(hw, blk, prof->entry_h[j][tun]);
302 prof->entry_h[j][tun] = 0;
303 }
304 ice_flow_rem_prof(hw, blk, prof_id);
305 }
306}
307
308/**
309 * ice_fdir_rem_flow - release the ice_flow structures for a filter type
310 * @hw: hardware structure containing the filter list
311 * @blk: hardware block
312 * @flow_type: FDir flow type to release
313 */
314static void
315ice_fdir_rem_flow(struct ice_hw *hw, enum ice_block blk,
316 enum ice_fltr_ptype flow_type)
317{
318 int flow = (int)flow_type & ~FLOW_EXT;
319 struct ice_fd_hw_prof *prof;
320 int tun, i;
321
322 prof = ice_fdir_get_hw_prof(hw, blk, flow);
323 if (!prof)
324 return;
325
326 ice_fdir_erase_flow_from_hw(hw, blk, flow);
327 for (i = 0; i < prof->cnt; i++)
328 prof->vsi_h[i] = 0;
329 for (tun = 0; tun < ICE_FD_HW_SEG_MAX; tun++) {
330 if (!prof->fdir_seg[tun])
331 continue;
332 devm_kfree(ice_hw_to_dev(hw), prof->fdir_seg[tun]);
333 prof->fdir_seg[tun] = NULL;
334 }
335 prof->cnt = 0;
336}
337
338/**
339 * ice_fdir_release_flows - release all flows in use for later replay
340 * @hw: pointer to HW instance
341 */
342void ice_fdir_release_flows(struct ice_hw *hw)
343{
344 int flow;
345
346 /* release Flow Director HW table entries */
347 for (flow = 0; flow < ICE_FLTR_PTYPE_MAX; flow++)
348 ice_fdir_erase_flow_from_hw(hw, ICE_BLK_FD, flow);
349}
350
351/**
352 * ice_fdir_replay_flows - replay HW Flow Director filter info
353 * @hw: pointer to HW instance
354 */
355void ice_fdir_replay_flows(struct ice_hw *hw)
356{
357 int flow;
358
359 for (flow = 0; flow < ICE_FLTR_PTYPE_MAX; flow++) {
360 int tun;
361
362 if (!hw->fdir_prof[flow] || !hw->fdir_prof[flow]->cnt)
363 continue;
364 for (tun = 0; tun < ICE_FD_HW_SEG_MAX; tun++) {
365 struct ice_flow_prof *hw_prof;
366 struct ice_fd_hw_prof *prof;
367 u64 prof_id;
368 int j;
369
370 prof = hw->fdir_prof[flow];
371 prof_id = flow + tun * ICE_FLTR_PTYPE_MAX;
372 ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, prof_id,
373 prof->fdir_seg[tun], TNL_SEG_CNT(tun),
374 &hw_prof);
375 for (j = 0; j < prof->cnt; j++) {
376 enum ice_flow_priority prio;
377 u64 entry_h = 0;
378 int err;
379
380 prio = ICE_FLOW_PRIO_NORMAL;
381 err = ice_flow_add_entry(hw, ICE_BLK_FD,
382 prof_id,
383 prof->vsi_h[0],
384 prof->vsi_h[j],
385 prio, prof->fdir_seg,
386 &entry_h);
387 if (err) {
388 dev_err(ice_hw_to_dev(hw), "Could not replay Flow Director, flow type %d\n",
389 flow);
390 continue;
391 }
392 prof->entry_h[j][tun] = entry_h;
393 }
394 }
395 }
396}
397
398/**
399 * ice_parse_rx_flow_user_data - deconstruct user-defined data
400 * @fsp: pointer to ethtool Rx flow specification
401 * @data: pointer to userdef data structure for storage
402 *
403 * Returns 0 on success, negative error value on failure
404 */
405static int
406ice_parse_rx_flow_user_data(struct ethtool_rx_flow_spec *fsp,
407 struct ice_rx_flow_userdef *data)
408{
409 u64 value, mask;
410
411 memset(data, 0, sizeof(*data));
412 if (!(fsp->flow_type & FLOW_EXT))
413 return 0;
414
415 value = be64_to_cpu(*((__force __be64 *)fsp->h_ext.data));
416 mask = be64_to_cpu(*((__force __be64 *)fsp->m_ext.data));
417 if (!mask)
418 return 0;
419
420#define ICE_USERDEF_FLEX_WORD_M GENMASK_ULL(15, 0)
421#define ICE_USERDEF_FLEX_OFFS_S 16
422#define ICE_USERDEF_FLEX_OFFS_M GENMASK_ULL(31, ICE_USERDEF_FLEX_OFFS_S)
423#define ICE_USERDEF_FLEX_FLTR_M GENMASK_ULL(31, 0)
424
425 /* 0x1fe is the maximum value for offsets stored in the internal
426 * filtering tables.
427 */
428#define ICE_USERDEF_FLEX_MAX_OFFS_VAL 0x1fe
429
430 if (!ice_is_mask_valid(mask, ICE_USERDEF_FLEX_FLTR_M) ||
431 value > ICE_USERDEF_FLEX_FLTR_M)
432 return -EINVAL;
433
434 data->flex_word = value & ICE_USERDEF_FLEX_WORD_M;
435 data->flex_offset = (value & ICE_USERDEF_FLEX_OFFS_M) >>
436 ICE_USERDEF_FLEX_OFFS_S;
437 if (data->flex_offset > ICE_USERDEF_FLEX_MAX_OFFS_VAL)
438 return -EINVAL;
439
440 data->flex_fltr = true;
441
442 return 0;
443}
444
445/**
446 * ice_fdir_num_avail_fltr - return the number of unused flow director filters
447 * @hw: pointer to hardware structure
448 * @vsi: software VSI structure
449 *
450 * There are 2 filter pools: guaranteed and best effort(shared). Each VSI can
451 * use filters from either pool. The guaranteed pool is divided between VSIs.
452 * The best effort filter pool is common to all VSIs and is a device shared
453 * resource pool. The number of filters available to this VSI is the sum of
454 * the VSIs guaranteed filter pool and the global available best effort
455 * filter pool.
456 *
457 * Returns the number of available flow director filters to this VSI
458 */
459static int ice_fdir_num_avail_fltr(struct ice_hw *hw, struct ice_vsi *vsi)
460{
461 u16 vsi_num = ice_get_hw_vsi_num(hw, vsi->idx);
462 u16 num_guar;
463 u16 num_be;
464
465 /* total guaranteed filters assigned to this VSI */
466 num_guar = vsi->num_gfltr;
467
468 /* minus the guaranteed filters programed by this VSI */
469 num_guar -= (rd32(hw, VSIQF_FD_CNT(vsi_num)) &
470 VSIQF_FD_CNT_FD_GCNT_M) >> VSIQF_FD_CNT_FD_GCNT_S;
471
472 /* total global best effort filters */
473 num_be = hw->func_caps.fd_fltr_best_effort;
474
475 /* minus the global best effort filters programmed */
476 num_be -= (rd32(hw, GLQF_FD_CNT) & GLQF_FD_CNT_FD_BCNT_M) >>
477 GLQF_FD_CNT_FD_BCNT_S;
478
479 return num_guar + num_be;
480}
481
482/**
483 * ice_fdir_alloc_flow_prof - allocate FDir flow profile structure(s)
484 * @hw: HW structure containing the FDir flow profile structure(s)
485 * @flow: flow type to allocate the flow profile for
486 *
487 * Allocate the fdir_prof and fdir_prof[flow] if not already created. Return 0
488 * on success and negative on error.
489 */
490static int
491ice_fdir_alloc_flow_prof(struct ice_hw *hw, enum ice_fltr_ptype flow)
492{
493 if (!hw)
494 return -EINVAL;
495
496 if (!hw->fdir_prof) {
497 hw->fdir_prof = devm_kcalloc(ice_hw_to_dev(hw),
498 ICE_FLTR_PTYPE_MAX,
499 sizeof(*hw->fdir_prof),
500 GFP_KERNEL);
501 if (!hw->fdir_prof)
502 return -ENOMEM;
503 }
504
505 if (!hw->fdir_prof[flow]) {
506 hw->fdir_prof[flow] = devm_kzalloc(ice_hw_to_dev(hw),
507 sizeof(**hw->fdir_prof),
508 GFP_KERNEL);
509 if (!hw->fdir_prof[flow])
510 return -ENOMEM;
511 }
512
513 return 0;
514}
515
516/**
517 * ice_fdir_set_hw_fltr_rule - Configure HW tables to generate a FDir rule
518 * @pf: pointer to the PF structure
519 * @seg: protocol header description pointer
520 * @flow: filter enum
521 * @tun: FDir segment to program
522 */
523static int
524ice_fdir_set_hw_fltr_rule(struct ice_pf *pf, struct ice_flow_seg_info *seg,
525 enum ice_fltr_ptype flow, enum ice_fd_hw_seg tun)
526{
527 struct device *dev = ice_pf_to_dev(pf);
528 struct ice_vsi *main_vsi, *ctrl_vsi;
529 struct ice_flow_seg_info *old_seg;
530 struct ice_flow_prof *prof = NULL;
531 struct ice_fd_hw_prof *hw_prof;
532 struct ice_hw *hw = &pf->hw;
533 enum ice_status status;
534 u64 entry1_h = 0;
535 u64 entry2_h = 0;
536 u64 prof_id;
537 int err;
538
539 main_vsi = ice_get_main_vsi(pf);
540 if (!main_vsi)
541 return -EINVAL;
542
543 ctrl_vsi = ice_get_ctrl_vsi(pf);
544 if (!ctrl_vsi)
545 return -EINVAL;
546
547 err = ice_fdir_alloc_flow_prof(hw, flow);
548 if (err)
549 return err;
550
551 hw_prof = hw->fdir_prof[flow];
552 old_seg = hw_prof->fdir_seg[tun];
553 if (old_seg) {
554 /* This flow_type already has a changed input set.
555 * If it matches the requested input set then we are
556 * done. Or, if it's different then it's an error.
557 */
558 if (!memcmp(old_seg, seg, sizeof(*seg)))
559 return -EEXIST;
560
561 /* if there are FDir filters using this flow,
562 * then return error.
563 */
564 if (hw->fdir_fltr_cnt[flow]) {
565 dev_err(dev, "Failed to add filter. Flow director filters on each port must have the same input set.\n");
566 return -EINVAL;
567 }
568
569 if (ice_is_arfs_using_perfect_flow(hw, flow)) {
570 dev_err(dev, "aRFS using perfect flow type %d, cannot change input set\n",
571 flow);
572 return -EINVAL;
573 }
574
575 /* remove HW filter definition */
576 ice_fdir_rem_flow(hw, ICE_BLK_FD, flow);
577 }
578
579 /* Adding a profile, but there is only one header supported.
580 * That is the final parameters are 1 header (segment), no
581 * actions (NULL) and zero actions 0.
582 */
583 prof_id = flow + tun * ICE_FLTR_PTYPE_MAX;
584 status = ice_flow_add_prof(hw, ICE_BLK_FD, ICE_FLOW_RX, prof_id, seg,
585 TNL_SEG_CNT(tun), &prof);
586 if (status)
587 return ice_status_to_errno(status);
588 status = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, main_vsi->idx,
589 main_vsi->idx, ICE_FLOW_PRIO_NORMAL,
590 seg, &entry1_h);
591 if (status) {
592 err = ice_status_to_errno(status);
593 goto err_prof;
594 }
595 status = ice_flow_add_entry(hw, ICE_BLK_FD, prof_id, main_vsi->idx,
596 ctrl_vsi->idx, ICE_FLOW_PRIO_NORMAL,
597 seg, &entry2_h);
598 if (status) {
599 err = ice_status_to_errno(status);
600 goto err_entry;
601 }
602
603 hw_prof->fdir_seg[tun] = seg;
604 hw_prof->entry_h[0][tun] = entry1_h;
605 hw_prof->entry_h[1][tun] = entry2_h;
606 hw_prof->vsi_h[0] = main_vsi->idx;
607 hw_prof->vsi_h[1] = ctrl_vsi->idx;
608 if (!hw_prof->cnt)
609 hw_prof->cnt = 2;
610
611 return 0;
612
613err_entry:
614 ice_rem_prof_id_flow(hw, ICE_BLK_FD,
615 ice_get_hw_vsi_num(hw, main_vsi->idx), prof_id);
616 ice_flow_rem_entry(hw, ICE_BLK_FD, entry1_h);
617err_prof:
618 ice_flow_rem_prof(hw, ICE_BLK_FD, prof_id);
619 dev_err(dev, "Failed to add filter. Flow director filters on each port must have the same input set.\n");
620
621 return err;
622}
623
624/**
625 * ice_set_init_fdir_seg
626 * @seg: flow segment for programming
627 * @l3_proto: ICE_FLOW_SEG_HDR_IPV4 or ICE_FLOW_SEG_HDR_IPV6
628 * @l4_proto: ICE_FLOW_SEG_HDR_TCP or ICE_FLOW_SEG_HDR_UDP
629 *
630 * Set the configuration for perfect filters to the provided flow segment for
631 * programming the HW filter. This is to be called only when initializing
632 * filters as this function it assumes no filters exist.
633 */
634static int
635ice_set_init_fdir_seg(struct ice_flow_seg_info *seg,
636 enum ice_flow_seg_hdr l3_proto,
637 enum ice_flow_seg_hdr l4_proto)
638{
639 enum ice_flow_field src_addr, dst_addr, src_port, dst_port;
640
641 if (!seg)
642 return -EINVAL;
643
644 if (l3_proto == ICE_FLOW_SEG_HDR_IPV4) {
645 src_addr = ICE_FLOW_FIELD_IDX_IPV4_SA;
646 dst_addr = ICE_FLOW_FIELD_IDX_IPV4_DA;
647 } else if (l3_proto == ICE_FLOW_SEG_HDR_IPV6) {
648 src_addr = ICE_FLOW_FIELD_IDX_IPV6_SA;
649 dst_addr = ICE_FLOW_FIELD_IDX_IPV6_DA;
650 } else {
651 return -EINVAL;
652 }
653
654 if (l4_proto == ICE_FLOW_SEG_HDR_TCP) {
655 src_port = ICE_FLOW_FIELD_IDX_TCP_SRC_PORT;
656 dst_port = ICE_FLOW_FIELD_IDX_TCP_DST_PORT;
657 } else if (l4_proto == ICE_FLOW_SEG_HDR_UDP) {
658 src_port = ICE_FLOW_FIELD_IDX_UDP_SRC_PORT;
659 dst_port = ICE_FLOW_FIELD_IDX_UDP_DST_PORT;
660 } else {
661 return -EINVAL;
662 }
663
664 ICE_FLOW_SET_HDRS(seg, l3_proto | l4_proto);
665
666 /* IP source address */
667 ice_flow_set_fld(seg, src_addr, ICE_FLOW_FLD_OFF_INVAL,
668 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL, false);
669
670 /* IP destination address */
671 ice_flow_set_fld(seg, dst_addr, ICE_FLOW_FLD_OFF_INVAL,
672 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL, false);
673
674 /* Layer 4 source port */
675 ice_flow_set_fld(seg, src_port, ICE_FLOW_FLD_OFF_INVAL,
676 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL, false);
677
678 /* Layer 4 destination port */
679 ice_flow_set_fld(seg, dst_port, ICE_FLOW_FLD_OFF_INVAL,
680 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL, false);
681
682 return 0;
683}
684
685/**
686 * ice_create_init_fdir_rule
687 * @pf: PF structure
688 * @flow: filter enum
689 *
690 * Return error value or 0 on success.
691 */
692static int
693ice_create_init_fdir_rule(struct ice_pf *pf, enum ice_fltr_ptype flow)
694{
695 struct ice_flow_seg_info *seg, *tun_seg;
696 struct device *dev = ice_pf_to_dev(pf);
697 struct ice_hw *hw = &pf->hw;
698 int ret;
699
700 /* if there is already a filter rule for kind return -EINVAL */
701 if (hw->fdir_prof && hw->fdir_prof[flow] &&
702 hw->fdir_prof[flow]->fdir_seg[0])
703 return -EINVAL;
704
705 seg = devm_kzalloc(dev, sizeof(*seg), GFP_KERNEL);
706 if (!seg)
707 return -ENOMEM;
708
709 tun_seg = devm_kzalloc(dev, sizeof(*seg) * ICE_FD_HW_SEG_MAX,
710 GFP_KERNEL);
711 if (!tun_seg) {
712 devm_kfree(dev, seg);
713 return -ENOMEM;
714 }
715
716 if (flow == ICE_FLTR_PTYPE_NONF_IPV4_TCP)
717 ret = ice_set_init_fdir_seg(seg, ICE_FLOW_SEG_HDR_IPV4,
718 ICE_FLOW_SEG_HDR_TCP);
719 else if (flow == ICE_FLTR_PTYPE_NONF_IPV4_UDP)
720 ret = ice_set_init_fdir_seg(seg, ICE_FLOW_SEG_HDR_IPV4,
721 ICE_FLOW_SEG_HDR_UDP);
722 else if (flow == ICE_FLTR_PTYPE_NONF_IPV6_TCP)
723 ret = ice_set_init_fdir_seg(seg, ICE_FLOW_SEG_HDR_IPV6,
724 ICE_FLOW_SEG_HDR_TCP);
725 else if (flow == ICE_FLTR_PTYPE_NONF_IPV6_UDP)
726 ret = ice_set_init_fdir_seg(seg, ICE_FLOW_SEG_HDR_IPV6,
727 ICE_FLOW_SEG_HDR_UDP);
728 else
729 ret = -EINVAL;
730 if (ret)
731 goto err_exit;
732
733 /* add filter for outer headers */
734 ret = ice_fdir_set_hw_fltr_rule(pf, seg, flow, ICE_FD_HW_SEG_NON_TUN);
735 if (ret)
736 /* could not write filter, free memory */
737 goto err_exit;
738
739 /* make tunneled filter HW entries if possible */
740 memcpy(&tun_seg[1], seg, sizeof(*seg));
741 ret = ice_fdir_set_hw_fltr_rule(pf, tun_seg, flow, ICE_FD_HW_SEG_TUN);
742 if (ret)
743 /* could not write tunnel filter, but outer header filter
744 * exists
745 */
746 devm_kfree(dev, tun_seg);
747
748 set_bit(flow, hw->fdir_perfect_fltr);
749 return ret;
750err_exit:
751 devm_kfree(dev, tun_seg);
752 devm_kfree(dev, seg);
753
754 return -EOPNOTSUPP;
755}
756
757/**
758 * ice_set_fdir_ip4_seg
759 * @seg: flow segment for programming
760 * @tcp_ip4_spec: mask data from ethtool
761 * @l4_proto: Layer 4 protocol to program
762 * @perfect_fltr: only valid on success; returns true if perfect filter,
763 * false if not
764 *
765 * Set the mask data into the flow segment to be used to program HW
766 * table based on provided L4 protocol for IPv4
767 */
768static int
769ice_set_fdir_ip4_seg(struct ice_flow_seg_info *seg,
770 struct ethtool_tcpip4_spec *tcp_ip4_spec,
771 enum ice_flow_seg_hdr l4_proto, bool *perfect_fltr)
772{
773 enum ice_flow_field src_port, dst_port;
774
775 /* make sure we don't have any empty rule */
776 if (!tcp_ip4_spec->psrc && !tcp_ip4_spec->ip4src &&
777 !tcp_ip4_spec->pdst && !tcp_ip4_spec->ip4dst)
778 return -EINVAL;
779
780 /* filtering on TOS not supported */
781 if (tcp_ip4_spec->tos)
782 return -EOPNOTSUPP;
783
784 if (l4_proto == ICE_FLOW_SEG_HDR_TCP) {
785 src_port = ICE_FLOW_FIELD_IDX_TCP_SRC_PORT;
786 dst_port = ICE_FLOW_FIELD_IDX_TCP_DST_PORT;
787 } else if (l4_proto == ICE_FLOW_SEG_HDR_UDP) {
788 src_port = ICE_FLOW_FIELD_IDX_UDP_SRC_PORT;
789 dst_port = ICE_FLOW_FIELD_IDX_UDP_DST_PORT;
790 } else if (l4_proto == ICE_FLOW_SEG_HDR_SCTP) {
791 src_port = ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT;
792 dst_port = ICE_FLOW_FIELD_IDX_SCTP_DST_PORT;
793 } else {
794 return -EOPNOTSUPP;
795 }
796
797 *perfect_fltr = true;
798 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_IPV4 | l4_proto);
799
800 /* IP source address */
801 if (tcp_ip4_spec->ip4src == htonl(0xFFFFFFFF))
802 ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_IPV4_SA,
803 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
804 ICE_FLOW_FLD_OFF_INVAL, false);
805 else if (!tcp_ip4_spec->ip4src)
806 *perfect_fltr = false;
807 else
808 return -EOPNOTSUPP;
809
810 /* IP destination address */
811 if (tcp_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
812 ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_IPV4_DA,
813 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
814 ICE_FLOW_FLD_OFF_INVAL, false);
815 else if (!tcp_ip4_spec->ip4dst)
816 *perfect_fltr = false;
817 else
818 return -EOPNOTSUPP;
819
820 /* Layer 4 source port */
821 if (tcp_ip4_spec->psrc == htons(0xFFFF))
822 ice_flow_set_fld(seg, src_port, ICE_FLOW_FLD_OFF_INVAL,
823 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
824 false);
825 else if (!tcp_ip4_spec->psrc)
826 *perfect_fltr = false;
827 else
828 return -EOPNOTSUPP;
829
830 /* Layer 4 destination port */
831 if (tcp_ip4_spec->pdst == htons(0xFFFF))
832 ice_flow_set_fld(seg, dst_port, ICE_FLOW_FLD_OFF_INVAL,
833 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
834 false);
835 else if (!tcp_ip4_spec->pdst)
836 *perfect_fltr = false;
837 else
838 return -EOPNOTSUPP;
839
840 return 0;
841}
842
843/**
844 * ice_set_fdir_ip4_usr_seg
845 * @seg: flow segment for programming
846 * @usr_ip4_spec: ethtool userdef packet offset
847 * @perfect_fltr: only valid on success; returns true if perfect filter,
848 * false if not
849 *
850 * Set the offset data into the flow segment to be used to program HW
851 * table for IPv4
852 */
853static int
854ice_set_fdir_ip4_usr_seg(struct ice_flow_seg_info *seg,
855 struct ethtool_usrip4_spec *usr_ip4_spec,
856 bool *perfect_fltr)
857{
858 /* first 4 bytes of Layer 4 header */
859 if (usr_ip4_spec->l4_4_bytes)
860 return -EINVAL;
861 if (usr_ip4_spec->tos)
862 return -EINVAL;
863 if (usr_ip4_spec->ip_ver)
864 return -EINVAL;
865 /* Filtering on Layer 4 protocol not supported */
866 if (usr_ip4_spec->proto)
867 return -EOPNOTSUPP;
868 /* empty rules are not valid */
869 if (!usr_ip4_spec->ip4src && !usr_ip4_spec->ip4dst)
870 return -EINVAL;
871
872 *perfect_fltr = true;
873 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_IPV4);
874
875 /* IP source address */
876 if (usr_ip4_spec->ip4src == htonl(0xFFFFFFFF))
877 ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_IPV4_SA,
878 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
879 ICE_FLOW_FLD_OFF_INVAL, false);
880 else if (!usr_ip4_spec->ip4src)
881 *perfect_fltr = false;
882 else
883 return -EOPNOTSUPP;
884
885 /* IP destination address */
886 if (usr_ip4_spec->ip4dst == htonl(0xFFFFFFFF))
887 ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_IPV4_DA,
888 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
889 ICE_FLOW_FLD_OFF_INVAL, false);
890 else if (!usr_ip4_spec->ip4dst)
891 *perfect_fltr = false;
892 else
893 return -EOPNOTSUPP;
894
895 return 0;
896}
897
898/**
899 * ice_set_fdir_ip6_seg
900 * @seg: flow segment for programming
901 * @tcp_ip6_spec: mask data from ethtool
902 * @l4_proto: Layer 4 protocol to program
903 * @perfect_fltr: only valid on success; returns true if perfect filter,
904 * false if not
905 *
906 * Set the mask data into the flow segment to be used to program HW
907 * table based on provided L4 protocol for IPv6
908 */
909static int
910ice_set_fdir_ip6_seg(struct ice_flow_seg_info *seg,
911 struct ethtool_tcpip6_spec *tcp_ip6_spec,
912 enum ice_flow_seg_hdr l4_proto, bool *perfect_fltr)
913{
914 enum ice_flow_field src_port, dst_port;
915
916 /* make sure we don't have any empty rule */
917 if (!memcmp(tcp_ip6_spec->ip6src, &zero_ipv6_addr_mask,
918 sizeof(struct in6_addr)) &&
919 !memcmp(tcp_ip6_spec->ip6dst, &zero_ipv6_addr_mask,
920 sizeof(struct in6_addr)) &&
921 !tcp_ip6_spec->psrc && !tcp_ip6_spec->pdst)
922 return -EINVAL;
923
924 /* filtering on TC not supported */
925 if (tcp_ip6_spec->tclass)
926 return -EOPNOTSUPP;
927
928 if (l4_proto == ICE_FLOW_SEG_HDR_TCP) {
929 src_port = ICE_FLOW_FIELD_IDX_TCP_SRC_PORT;
930 dst_port = ICE_FLOW_FIELD_IDX_TCP_DST_PORT;
931 } else if (l4_proto == ICE_FLOW_SEG_HDR_UDP) {
932 src_port = ICE_FLOW_FIELD_IDX_UDP_SRC_PORT;
933 dst_port = ICE_FLOW_FIELD_IDX_UDP_DST_PORT;
934 } else if (l4_proto == ICE_FLOW_SEG_HDR_SCTP) {
935 src_port = ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT;
936 dst_port = ICE_FLOW_FIELD_IDX_SCTP_DST_PORT;
937 } else {
938 return -EINVAL;
939 }
940
941 *perfect_fltr = true;
942 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_IPV6 | l4_proto);
943
944 if (!memcmp(tcp_ip6_spec->ip6src, &full_ipv6_addr_mask,
945 sizeof(struct in6_addr)))
946 ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_IPV6_SA,
947 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
948 ICE_FLOW_FLD_OFF_INVAL, false);
949 else if (!memcmp(tcp_ip6_spec->ip6src, &zero_ipv6_addr_mask,
950 sizeof(struct in6_addr)))
951 *perfect_fltr = false;
952 else
953 return -EOPNOTSUPP;
954
955 if (!memcmp(tcp_ip6_spec->ip6dst, &full_ipv6_addr_mask,
956 sizeof(struct in6_addr)))
957 ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_IPV6_DA,
958 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
959 ICE_FLOW_FLD_OFF_INVAL, false);
960 else if (!memcmp(tcp_ip6_spec->ip6dst, &zero_ipv6_addr_mask,
961 sizeof(struct in6_addr)))
962 *perfect_fltr = false;
963 else
964 return -EOPNOTSUPP;
965
966 /* Layer 4 source port */
967 if (tcp_ip6_spec->psrc == htons(0xFFFF))
968 ice_flow_set_fld(seg, src_port, ICE_FLOW_FLD_OFF_INVAL,
969 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
970 false);
971 else if (!tcp_ip6_spec->psrc)
972 *perfect_fltr = false;
973 else
974 return -EOPNOTSUPP;
975
976 /* Layer 4 destination port */
977 if (tcp_ip6_spec->pdst == htons(0xFFFF))
978 ice_flow_set_fld(seg, dst_port, ICE_FLOW_FLD_OFF_INVAL,
979 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
980 false);
981 else if (!tcp_ip6_spec->pdst)
982 *perfect_fltr = false;
983 else
984 return -EOPNOTSUPP;
985
986 return 0;
987}
988
989/**
990 * ice_set_fdir_ip6_usr_seg
991 * @seg: flow segment for programming
992 * @usr_ip6_spec: ethtool userdef packet offset
993 * @perfect_fltr: only valid on success; returns true if perfect filter,
994 * false if not
995 *
996 * Set the offset data into the flow segment to be used to program HW
997 * table for IPv6
998 */
999static int
1000ice_set_fdir_ip6_usr_seg(struct ice_flow_seg_info *seg,
1001 struct ethtool_usrip6_spec *usr_ip6_spec,
1002 bool *perfect_fltr)
1003{
1004 /* filtering on Layer 4 bytes not supported */
1005 if (usr_ip6_spec->l4_4_bytes)
1006 return -EOPNOTSUPP;
1007 /* filtering on TC not supported */
1008 if (usr_ip6_spec->tclass)
1009 return -EOPNOTSUPP;
1010 /* filtering on Layer 4 protocol not supported */
1011 if (usr_ip6_spec->l4_proto)
1012 return -EOPNOTSUPP;
1013 /* empty rules are not valid */
1014 if (!memcmp(usr_ip6_spec->ip6src, &zero_ipv6_addr_mask,
1015 sizeof(struct in6_addr)) &&
1016 !memcmp(usr_ip6_spec->ip6dst, &zero_ipv6_addr_mask,
1017 sizeof(struct in6_addr)))
1018 return -EINVAL;
1019
1020 *perfect_fltr = true;
1021 ICE_FLOW_SET_HDRS(seg, ICE_FLOW_SEG_HDR_IPV6);
1022
1023 if (!memcmp(usr_ip6_spec->ip6src, &full_ipv6_addr_mask,
1024 sizeof(struct in6_addr)))
1025 ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_IPV6_SA,
1026 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
1027 ICE_FLOW_FLD_OFF_INVAL, false);
1028 else if (!memcmp(usr_ip6_spec->ip6src, &zero_ipv6_addr_mask,
1029 sizeof(struct in6_addr)))
1030 *perfect_fltr = false;
1031 else
1032 return -EOPNOTSUPP;
1033
1034 if (!memcmp(usr_ip6_spec->ip6dst, &full_ipv6_addr_mask,
1035 sizeof(struct in6_addr)))
1036 ice_flow_set_fld(seg, ICE_FLOW_FIELD_IDX_IPV6_DA,
1037 ICE_FLOW_FLD_OFF_INVAL, ICE_FLOW_FLD_OFF_INVAL,
1038 ICE_FLOW_FLD_OFF_INVAL, false);
1039 else if (!memcmp(usr_ip6_spec->ip6dst, &zero_ipv6_addr_mask,
1040 sizeof(struct in6_addr)))
1041 *perfect_fltr = false;
1042 else
1043 return -EOPNOTSUPP;
1044
1045 return 0;
1046}
1047
1048/**
1049 * ice_cfg_fdir_xtrct_seq - Configure extraction sequence for the given filter
1050 * @pf: PF structure
1051 * @fsp: pointer to ethtool Rx flow specification
1052 * @user: user defined data from flow specification
1053 *
1054 * Returns 0 on success.
1055 */
1056static int
1057ice_cfg_fdir_xtrct_seq(struct ice_pf *pf, struct ethtool_rx_flow_spec *fsp,
1058 struct ice_rx_flow_userdef *user)
1059{
1060 struct ice_flow_seg_info *seg, *tun_seg;
1061 struct device *dev = ice_pf_to_dev(pf);
1062 enum ice_fltr_ptype fltr_idx;
1063 struct ice_hw *hw = &pf->hw;
1064 bool perfect_filter;
1065 int ret;
1066
1067 seg = devm_kzalloc(dev, sizeof(*seg), GFP_KERNEL);
1068 if (!seg)
1069 return -ENOMEM;
1070
1071 tun_seg = devm_kzalloc(dev, sizeof(*seg) * ICE_FD_HW_SEG_MAX,
1072 GFP_KERNEL);
1073 if (!tun_seg) {
1074 devm_kfree(dev, seg);
1075 return -ENOMEM;
1076 }
1077
1078 switch (fsp->flow_type & ~FLOW_EXT) {
1079 case TCP_V4_FLOW:
1080 ret = ice_set_fdir_ip4_seg(seg, &fsp->m_u.tcp_ip4_spec,
1081 ICE_FLOW_SEG_HDR_TCP,
1082 &perfect_filter);
1083 break;
1084 case UDP_V4_FLOW:
1085 ret = ice_set_fdir_ip4_seg(seg, &fsp->m_u.tcp_ip4_spec,
1086 ICE_FLOW_SEG_HDR_UDP,
1087 &perfect_filter);
1088 break;
1089 case SCTP_V4_FLOW:
1090 ret = ice_set_fdir_ip4_seg(seg, &fsp->m_u.tcp_ip4_spec,
1091 ICE_FLOW_SEG_HDR_SCTP,
1092 &perfect_filter);
1093 break;
1094 case IPV4_USER_FLOW:
1095 ret = ice_set_fdir_ip4_usr_seg(seg, &fsp->m_u.usr_ip4_spec,
1096 &perfect_filter);
1097 break;
1098 case TCP_V6_FLOW:
1099 ret = ice_set_fdir_ip6_seg(seg, &fsp->m_u.tcp_ip6_spec,
1100 ICE_FLOW_SEG_HDR_TCP,
1101 &perfect_filter);
1102 break;
1103 case UDP_V6_FLOW:
1104 ret = ice_set_fdir_ip6_seg(seg, &fsp->m_u.tcp_ip6_spec,
1105 ICE_FLOW_SEG_HDR_UDP,
1106 &perfect_filter);
1107 break;
1108 case SCTP_V6_FLOW:
1109 ret = ice_set_fdir_ip6_seg(seg, &fsp->m_u.tcp_ip6_spec,
1110 ICE_FLOW_SEG_HDR_SCTP,
1111 &perfect_filter);
1112 break;
1113 case IPV6_USER_FLOW:
1114 ret = ice_set_fdir_ip6_usr_seg(seg, &fsp->m_u.usr_ip6_spec,
1115 &perfect_filter);
1116 break;
1117 default:
1118 ret = -EINVAL;
1119 }
1120 if (ret)
1121 goto err_exit;
1122
1123 /* tunnel segments are shifted up one. */
1124 memcpy(&tun_seg[1], seg, sizeof(*seg));
1125
1126 if (user && user->flex_fltr) {
1127 perfect_filter = false;
1128 ice_flow_add_fld_raw(seg, user->flex_offset,
1129 ICE_FLTR_PRGM_FLEX_WORD_SIZE,
1130 ICE_FLOW_FLD_OFF_INVAL,
1131 ICE_FLOW_FLD_OFF_INVAL);
1132 ice_flow_add_fld_raw(&tun_seg[1], user->flex_offset,
1133 ICE_FLTR_PRGM_FLEX_WORD_SIZE,
1134 ICE_FLOW_FLD_OFF_INVAL,
1135 ICE_FLOW_FLD_OFF_INVAL);
1136 }
1137
1138 /* add filter for outer headers */
1139 fltr_idx = ice_ethtool_flow_to_fltr(fsp->flow_type & ~FLOW_EXT);
1140 ret = ice_fdir_set_hw_fltr_rule(pf, seg, fltr_idx,
1141 ICE_FD_HW_SEG_NON_TUN);
1142 if (ret == -EEXIST)
1143 /* Rule already exists, free memory and continue */
1144 devm_kfree(dev, seg);
1145 else if (ret)
1146 /* could not write filter, free memory */
1147 goto err_exit;
1148
1149 /* make tunneled filter HW entries if possible */
1150 memcpy(&tun_seg[1], seg, sizeof(*seg));
1151 ret = ice_fdir_set_hw_fltr_rule(pf, tun_seg, fltr_idx,
1152 ICE_FD_HW_SEG_TUN);
1153 if (ret == -EEXIST) {
1154 /* Rule already exists, free memory and count as success */
1155 devm_kfree(dev, tun_seg);
1156 ret = 0;
1157 } else if (ret) {
1158 /* could not write tunnel filter, but outer filter exists */
1159 devm_kfree(dev, tun_seg);
1160 }
1161
1162 if (perfect_filter)
1163 set_bit(fltr_idx, hw->fdir_perfect_fltr);
1164 else
1165 clear_bit(fltr_idx, hw->fdir_perfect_fltr);
1166
1167 return ret;
1168
1169err_exit:
1170 devm_kfree(dev, tun_seg);
1171 devm_kfree(dev, seg);
1172
1173 return -EOPNOTSUPP;
1174}
1175
1176/**
1177 * ice_fdir_write_fltr - send a flow director filter to the hardware
1178 * @pf: PF data structure
1179 * @input: filter structure
1180 * @add: true adds filter and false removed filter
1181 * @is_tun: true adds inner filter on tunnel and false outer headers
1182 *
1183 * returns 0 on success and negative value on error
1184 */
1185int
1186ice_fdir_write_fltr(struct ice_pf *pf, struct ice_fdir_fltr *input, bool add,
1187 bool is_tun)
1188{
1189 struct device *dev = ice_pf_to_dev(pf);
1190 struct ice_hw *hw = &pf->hw;
1191 struct ice_fltr_desc desc;
1192 struct ice_vsi *ctrl_vsi;
1193 enum ice_status status;
1194 u8 *pkt, *frag_pkt;
1195 bool has_frag;
1196 int err;
1197
1198 ctrl_vsi = ice_get_ctrl_vsi(pf);
1199 if (!ctrl_vsi)
1200 return -EINVAL;
1201
1202 pkt = devm_kzalloc(dev, ICE_FDIR_MAX_RAW_PKT_SIZE, GFP_KERNEL);
1203 if (!pkt)
1204 return -ENOMEM;
1205 frag_pkt = devm_kzalloc(dev, ICE_FDIR_MAX_RAW_PKT_SIZE, GFP_KERNEL);
1206 if (!frag_pkt) {
1207 err = -ENOMEM;
1208 goto err_free;
1209 }
1210
1211 ice_fdir_get_prgm_desc(hw, input, &desc, add);
1212 status = ice_fdir_get_gen_prgm_pkt(hw, input, pkt, false, is_tun);
1213 if (status) {
1214 err = ice_status_to_errno(status);
1215 goto err_free_all;
1216 }
1217 err = ice_prgm_fdir_fltr(ctrl_vsi, &desc, pkt);
1218 if (err)
1219 goto err_free_all;
1220
1221 /* repeat for fragment packet */
1222 has_frag = ice_fdir_has_frag(input->flow_type);
1223 if (has_frag) {
1224 /* does not return error */
1225 ice_fdir_get_prgm_desc(hw, input, &desc, add);
1226 status = ice_fdir_get_gen_prgm_pkt(hw, input, frag_pkt, true,
1227 is_tun);
1228 if (status) {
1229 err = ice_status_to_errno(status);
1230 goto err_frag;
1231 }
1232 err = ice_prgm_fdir_fltr(ctrl_vsi, &desc, frag_pkt);
1233 if (err)
1234 goto err_frag;
1235 } else {
1236 devm_kfree(dev, frag_pkt);
1237 }
1238
1239 return 0;
1240
1241err_free_all:
1242 devm_kfree(dev, frag_pkt);
1243err_free:
1244 devm_kfree(dev, pkt);
1245 return err;
1246
1247err_frag:
1248 devm_kfree(dev, frag_pkt);
1249 return err;
1250}
1251
1252/**
1253 * ice_fdir_write_all_fltr - send a flow director filter to the hardware
1254 * @pf: PF data structure
1255 * @input: filter structure
1256 * @add: true adds filter and false removed filter
1257 *
1258 * returns 0 on success and negative value on error
1259 */
1260static int
1261ice_fdir_write_all_fltr(struct ice_pf *pf, struct ice_fdir_fltr *input,
1262 bool add)
1263{
1264 u16 port_num;
1265 int tun;
1266
1267 for (tun = 0; tun < ICE_FD_HW_SEG_MAX; tun++) {
1268 bool is_tun = tun == ICE_FD_HW_SEG_TUN;
1269 int err;
1270
1271 if (is_tun && !ice_get_open_tunnel_port(&pf->hw, TNL_ALL,
1272 &port_num))
1273 continue;
1274 err = ice_fdir_write_fltr(pf, input, add, is_tun);
1275 if (err)
1276 return err;
1277 }
1278 return 0;
1279}
1280
1281/**
1282 * ice_fdir_replay_fltrs - replay filters from the HW filter list
1283 * @pf: board private structure
1284 */
1285void ice_fdir_replay_fltrs(struct ice_pf *pf)
1286{
1287 struct ice_fdir_fltr *f_rule;
1288 struct ice_hw *hw = &pf->hw;
1289
1290 list_for_each_entry(f_rule, &hw->fdir_list_head, fltr_node) {
1291 int err = ice_fdir_write_all_fltr(pf, f_rule, true);
1292
1293 if (err)
1294 dev_dbg(ice_pf_to_dev(pf), "Flow Director error %d, could not reprogram filter %d\n",
1295 err, f_rule->fltr_id);
1296 }
1297}
1298
1299/**
1300 * ice_fdir_create_dflt_rules - create default perfect filters
1301 * @pf: PF data structure
1302 *
1303 * Returns 0 for success or error.
1304 */
1305int ice_fdir_create_dflt_rules(struct ice_pf *pf)
1306{
1307 int err;
1308
1309 /* Create perfect TCP and UDP rules in hardware. */
1310 err = ice_create_init_fdir_rule(pf, ICE_FLTR_PTYPE_NONF_IPV4_TCP);
1311 if (err)
1312 return err;
1313
1314 err = ice_create_init_fdir_rule(pf, ICE_FLTR_PTYPE_NONF_IPV4_UDP);
1315 if (err)
1316 return err;
1317
1318 err = ice_create_init_fdir_rule(pf, ICE_FLTR_PTYPE_NONF_IPV6_TCP);
1319 if (err)
1320 return err;
1321
1322 err = ice_create_init_fdir_rule(pf, ICE_FLTR_PTYPE_NONF_IPV6_UDP);
1323
1324 return err;
1325}
1326
1327/**
1328 * ice_vsi_manage_fdir - turn on/off flow director
1329 * @vsi: the VSI being changed
1330 * @ena: boolean value indicating if this is an enable or disable request
1331 */
1332void ice_vsi_manage_fdir(struct ice_vsi *vsi, bool ena)
1333{
1334 struct ice_fdir_fltr *f_rule, *tmp;
1335 struct ice_pf *pf = vsi->back;
1336 struct ice_hw *hw = &pf->hw;
1337 enum ice_fltr_ptype flow;
1338
1339 if (ena) {
1340 set_bit(ICE_FLAG_FD_ENA, pf->flags);
1341 ice_fdir_create_dflt_rules(pf);
1342 return;
1343 }
1344
1345 mutex_lock(&hw->fdir_fltr_lock);
1346 if (!test_and_clear_bit(ICE_FLAG_FD_ENA, pf->flags))
1347 goto release_lock;
1348 list_for_each_entry_safe(f_rule, tmp, &hw->fdir_list_head, fltr_node) {
1349 /* ignore return value */
1350 ice_fdir_write_all_fltr(pf, f_rule, false);
1351 ice_fdir_update_cntrs(hw, f_rule->flow_type, false);
1352 list_del(&f_rule->fltr_node);
1353 devm_kfree(ice_hw_to_dev(hw), f_rule);
1354 }
1355
1356 if (hw->fdir_prof)
1357 for (flow = ICE_FLTR_PTYPE_NONF_NONE; flow < ICE_FLTR_PTYPE_MAX;
1358 flow++)
1359 if (hw->fdir_prof[flow])
1360 ice_fdir_rem_flow(hw, ICE_BLK_FD, flow);
1361
1362release_lock:
1363 mutex_unlock(&hw->fdir_fltr_lock);
1364}
1365
1366/**
1367 * ice_fdir_do_rem_flow - delete flow and possibly add perfect flow
1368 * @pf: PF structure
1369 * @flow_type: FDir flow type to release
1370 */
1371static void
1372ice_fdir_do_rem_flow(struct ice_pf *pf, enum ice_fltr_ptype flow_type)
1373{
1374 struct ice_hw *hw = &pf->hw;
1375 bool need_perfect = false;
1376
1377 if (flow_type == ICE_FLTR_PTYPE_NONF_IPV4_TCP ||
1378 flow_type == ICE_FLTR_PTYPE_NONF_IPV4_UDP ||
1379 flow_type == ICE_FLTR_PTYPE_NONF_IPV6_TCP ||
1380 flow_type == ICE_FLTR_PTYPE_NONF_IPV6_UDP)
1381 need_perfect = true;
1382
1383 if (need_perfect && test_bit(flow_type, hw->fdir_perfect_fltr))
1384 return;
1385
1386 ice_fdir_rem_flow(hw, ICE_BLK_FD, flow_type);
1387 if (need_perfect)
1388 ice_create_init_fdir_rule(pf, flow_type);
1389}
1390
1391/**
1392 * ice_fdir_update_list_entry - add or delete a filter from the filter list
1393 * @pf: PF structure
1394 * @input: filter structure
1395 * @fltr_idx: ethtool index of filter to modify
1396 *
1397 * returns 0 on success and negative on errors
1398 */
1399static int
1400ice_fdir_update_list_entry(struct ice_pf *pf, struct ice_fdir_fltr *input,
1401 int fltr_idx)
1402{
1403 struct ice_fdir_fltr *old_fltr;
1404 struct ice_hw *hw = &pf->hw;
1405 int err = -ENOENT;
1406
1407 /* Do not update filters during reset */
1408 if (ice_is_reset_in_progress(pf->state))
1409 return -EBUSY;
1410
1411 old_fltr = ice_fdir_find_fltr_by_idx(hw, fltr_idx);
1412 if (old_fltr) {
1413 err = ice_fdir_write_all_fltr(pf, old_fltr, false);
1414 if (err)
1415 return err;
1416 ice_fdir_update_cntrs(hw, old_fltr->flow_type, false);
1417 if (!input && !hw->fdir_fltr_cnt[old_fltr->flow_type])
1418 /* we just deleted the last filter of flow_type so we
1419 * should also delete the HW filter info.
1420 */
1421 ice_fdir_do_rem_flow(pf, old_fltr->flow_type);
1422 list_del(&old_fltr->fltr_node);
1423 devm_kfree(ice_hw_to_dev(hw), old_fltr);
1424 }
1425 if (!input)
1426 return err;
1427 ice_fdir_list_add_fltr(hw, input);
1428 ice_fdir_update_cntrs(hw, input->flow_type, true);
1429 return 0;
1430}
1431
1432/**
1433 * ice_del_fdir_ethtool - delete Flow Director filter
1434 * @vsi: pointer to target VSI
1435 * @cmd: command to add or delete Flow Director filter
1436 *
1437 * Returns 0 on success and negative values for failure
1438 */
1439int ice_del_fdir_ethtool(struct ice_vsi *vsi, struct ethtool_rxnfc *cmd)
1440{
1441 struct ethtool_rx_flow_spec *fsp =
1442 (struct ethtool_rx_flow_spec *)&cmd->fs;
1443 struct ice_pf *pf = vsi->back;
1444 struct ice_hw *hw = &pf->hw;
1445 int val;
1446
1447 if (!test_bit(ICE_FLAG_FD_ENA, pf->flags))
1448 return -EOPNOTSUPP;
1449
1450 /* Do not delete filters during reset */
1451 if (ice_is_reset_in_progress(pf->state)) {
1452 dev_err(ice_pf_to_dev(pf), "Device is resetting - deleting Flow Director filters not supported during reset\n");
1453 return -EBUSY;
1454 }
1455
1456 if (test_bit(__ICE_FD_FLUSH_REQ, pf->state))
1457 return -EBUSY;
1458
1459 mutex_lock(&hw->fdir_fltr_lock);
1460 val = ice_fdir_update_list_entry(pf, NULL, fsp->location);
1461 mutex_unlock(&hw->fdir_fltr_lock);
1462
1463 return val;
1464}
1465
1466/**
1467 * ice_set_fdir_input_set - Set the input set for Flow Director
1468 * @vsi: pointer to target VSI
1469 * @fsp: pointer to ethtool Rx flow specification
1470 * @input: filter structure
1471 */
1472static int
1473ice_set_fdir_input_set(struct ice_vsi *vsi, struct ethtool_rx_flow_spec *fsp,
1474 struct ice_fdir_fltr *input)
1475{
1476 u16 dest_vsi, q_index = 0;
1477 struct ice_pf *pf;
1478 struct ice_hw *hw;
1479 int flow_type;
1480 u8 dest_ctl;
1481
1482 if (!vsi || !fsp || !input)
1483 return -EINVAL;
1484
1485 pf = vsi->back;
1486 hw = &pf->hw;
1487
1488 dest_vsi = vsi->idx;
1489 if (fsp->ring_cookie == RX_CLS_FLOW_DISC) {
1490 dest_ctl = ICE_FLTR_PRGM_DESC_DEST_DROP_PKT;
1491 } else {
1492 u32 ring = ethtool_get_flow_spec_ring(fsp->ring_cookie);
1493 u8 vf = ethtool_get_flow_spec_ring_vf(fsp->ring_cookie);
1494
1495 if (vf) {
1496 dev_err(ice_pf_to_dev(pf), "Failed to add filter. Flow director filters are not supported on VF queues.\n");
1497 return -EINVAL;
1498 }
1499
1500 if (ring >= vsi->num_rxq)
1501 return -EINVAL;
1502
1503 dest_ctl = ICE_FLTR_PRGM_DESC_DEST_DIRECT_PKT_QINDEX;
1504 q_index = ring;
1505 }
1506
1507 input->fltr_id = fsp->location;
1508 input->q_index = q_index;
1509 flow_type = fsp->flow_type & ~FLOW_EXT;
1510
1511 input->dest_vsi = dest_vsi;
1512 input->dest_ctl = dest_ctl;
1513 input->fltr_status = ICE_FLTR_PRGM_DESC_FD_STATUS_FD_ID;
1514 input->cnt_index = ICE_FD_SB_STAT_IDX(hw->fd_ctr_base);
1515 input->flow_type = ice_ethtool_flow_to_fltr(flow_type);
1516
1517 if (fsp->flow_type & FLOW_EXT) {
1518 memcpy(input->ext_data.usr_def, fsp->h_ext.data,
1519 sizeof(input->ext_data.usr_def));
1520 input->ext_data.vlan_type = fsp->h_ext.vlan_etype;
1521 input->ext_data.vlan_tag = fsp->h_ext.vlan_tci;
1522 memcpy(input->ext_mask.usr_def, fsp->m_ext.data,
1523 sizeof(input->ext_mask.usr_def));
1524 input->ext_mask.vlan_type = fsp->m_ext.vlan_etype;
1525 input->ext_mask.vlan_tag = fsp->m_ext.vlan_tci;
1526 }
1527
1528 switch (flow_type) {
1529 case TCP_V4_FLOW:
1530 case UDP_V4_FLOW:
1531 case SCTP_V4_FLOW:
1532 input->ip.v4.dst_port = fsp->h_u.tcp_ip4_spec.pdst;
1533 input->ip.v4.src_port = fsp->h_u.tcp_ip4_spec.psrc;
1534 input->ip.v4.dst_ip = fsp->h_u.tcp_ip4_spec.ip4dst;
1535 input->ip.v4.src_ip = fsp->h_u.tcp_ip4_spec.ip4src;
1536 input->mask.v4.dst_port = fsp->m_u.tcp_ip4_spec.pdst;
1537 input->mask.v4.src_port = fsp->m_u.tcp_ip4_spec.psrc;
1538 input->mask.v4.dst_ip = fsp->m_u.tcp_ip4_spec.ip4dst;
1539 input->mask.v4.src_ip = fsp->m_u.tcp_ip4_spec.ip4src;
1540 break;
1541 case IPV4_USER_FLOW:
1542 input->ip.v4.dst_ip = fsp->h_u.usr_ip4_spec.ip4dst;
1543 input->ip.v4.src_ip = fsp->h_u.usr_ip4_spec.ip4src;
1544 input->ip.v4.l4_header = fsp->h_u.usr_ip4_spec.l4_4_bytes;
1545 input->ip.v4.proto = fsp->h_u.usr_ip4_spec.proto;
1546 input->ip.v4.ip_ver = fsp->h_u.usr_ip4_spec.ip_ver;
1547 input->ip.v4.tos = fsp->h_u.usr_ip4_spec.tos;
1548 input->mask.v4.dst_ip = fsp->m_u.usr_ip4_spec.ip4dst;
1549 input->mask.v4.src_ip = fsp->m_u.usr_ip4_spec.ip4src;
1550 input->mask.v4.l4_header = fsp->m_u.usr_ip4_spec.l4_4_bytes;
1551 input->mask.v4.proto = fsp->m_u.usr_ip4_spec.proto;
1552 input->mask.v4.ip_ver = fsp->m_u.usr_ip4_spec.ip_ver;
1553 input->mask.v4.tos = fsp->m_u.usr_ip4_spec.tos;
1554 break;
1555 case TCP_V6_FLOW:
1556 case UDP_V6_FLOW:
1557 case SCTP_V6_FLOW:
1558 memcpy(input->ip.v6.dst_ip, fsp->h_u.usr_ip6_spec.ip6dst,
1559 sizeof(struct in6_addr));
1560 memcpy(input->ip.v6.src_ip, fsp->h_u.usr_ip6_spec.ip6src,
1561 sizeof(struct in6_addr));
1562 input->ip.v6.dst_port = fsp->h_u.tcp_ip6_spec.pdst;
1563 input->ip.v6.src_port = fsp->h_u.tcp_ip6_spec.psrc;
1564 input->ip.v6.tc = fsp->h_u.tcp_ip6_spec.tclass;
1565 memcpy(input->mask.v6.dst_ip, fsp->m_u.tcp_ip6_spec.ip6dst,
1566 sizeof(struct in6_addr));
1567 memcpy(input->mask.v6.src_ip, fsp->m_u.tcp_ip6_spec.ip6src,
1568 sizeof(struct in6_addr));
1569 input->mask.v6.dst_port = fsp->m_u.tcp_ip6_spec.pdst;
1570 input->mask.v6.src_port = fsp->m_u.tcp_ip6_spec.psrc;
1571 input->mask.v6.tc = fsp->m_u.tcp_ip6_spec.tclass;
1572 break;
1573 case IPV6_USER_FLOW:
1574 memcpy(input->ip.v6.dst_ip, fsp->h_u.usr_ip6_spec.ip6dst,
1575 sizeof(struct in6_addr));
1576 memcpy(input->ip.v6.src_ip, fsp->h_u.usr_ip6_spec.ip6src,
1577 sizeof(struct in6_addr));
1578 input->ip.v6.l4_header = fsp->h_u.usr_ip6_spec.l4_4_bytes;
1579 input->ip.v6.tc = fsp->h_u.usr_ip6_spec.tclass;
1580 input->ip.v6.proto = fsp->h_u.usr_ip6_spec.l4_proto;
1581 memcpy(input->mask.v6.dst_ip, fsp->m_u.usr_ip6_spec.ip6dst,
1582 sizeof(struct in6_addr));
1583 memcpy(input->mask.v6.src_ip, fsp->m_u.usr_ip6_spec.ip6src,
1584 sizeof(struct in6_addr));
1585 input->mask.v6.l4_header = fsp->m_u.usr_ip6_spec.l4_4_bytes;
1586 input->mask.v6.tc = fsp->m_u.usr_ip6_spec.tclass;
1587 input->mask.v6.proto = fsp->m_u.usr_ip6_spec.l4_proto;
1588 break;
1589 default:
1590 /* not doing un-parsed flow types */
1591 return -EINVAL;
1592 }
1593
1594 return 0;
1595}
1596
1597/**
1598 * ice_add_fdir_ethtool - Add/Remove Flow Director filter
1599 * @vsi: pointer to target VSI
1600 * @cmd: command to add or delete Flow Director filter
1601 *
1602 * Returns 0 on success and negative values for failure
1603 */
1604int ice_add_fdir_ethtool(struct ice_vsi *vsi, struct ethtool_rxnfc *cmd)
1605{
1606 struct ice_rx_flow_userdef userdata;
1607 struct ethtool_rx_flow_spec *fsp;
1608 struct ice_fdir_fltr *input;
1609 struct device *dev;
1610 struct ice_pf *pf;
1611 struct ice_hw *hw;
1612 int fltrs_needed;
1613 u16 tunnel_port;
1614 int ret;
1615
1616 if (!vsi)
1617 return -EINVAL;
1618
1619 pf = vsi->back;
1620 hw = &pf->hw;
1621 dev = ice_pf_to_dev(pf);
1622
1623 if (!test_bit(ICE_FLAG_FD_ENA, pf->flags))
1624 return -EOPNOTSUPP;
1625
1626 /* Do not program filters during reset */
1627 if (ice_is_reset_in_progress(pf->state)) {
1628 dev_err(dev, "Device is resetting - adding Flow Director filters not supported during reset\n");
1629 return -EBUSY;
1630 }
1631
1632 fsp = (struct ethtool_rx_flow_spec *)&cmd->fs;
1633
1634 if (ice_parse_rx_flow_user_data(fsp, &userdata))
1635 return -EINVAL;
1636
1637 if (fsp->flow_type & FLOW_MAC_EXT)
1638 return -EINVAL;
1639
1640 ret = ice_cfg_fdir_xtrct_seq(pf, fsp, &userdata);
1641 if (ret)
1642 return ret;
1643
1644 if (fsp->location >= ice_get_fdir_cnt_all(hw)) {
1645 dev_err(dev, "Failed to add filter. The maximum number of flow director filters has been reached.\n");
1646 return -ENOSPC;
1647 }
1648
1649 /* return error if not an update and no available filters */
1650 fltrs_needed = ice_get_open_tunnel_port(hw, TNL_ALL, &tunnel_port) ?
1651 2 : 1;
1652 if (!ice_fdir_find_fltr_by_idx(hw, fsp->location) &&
1653 ice_fdir_num_avail_fltr(hw, pf->vsi[vsi->idx]) < fltrs_needed) {
1654 dev_err(dev, "Failed to add filter. The maximum number of flow director filters has been reached.\n");
1655 return -ENOSPC;
1656 }
1657
1658 input = devm_kzalloc(dev, sizeof(*input), GFP_KERNEL);
1659 if (!input)
1660 return -ENOMEM;
1661
1662 ret = ice_set_fdir_input_set(vsi, fsp, input);
1663 if (ret)
1664 goto free_input;
1665
1666 mutex_lock(&hw->fdir_fltr_lock);
1667 if (ice_fdir_is_dup_fltr(hw, input)) {
1668 ret = -EINVAL;
1669 goto release_lock;
1670 }
1671
1672 if (userdata.flex_fltr) {
1673 input->flex_fltr = true;
1674 input->flex_word = cpu_to_be16(userdata.flex_word);
1675 input->flex_offset = userdata.flex_offset;
1676 }
1677
1678 /* input struct is added to the HW filter list */
1679 ice_fdir_update_list_entry(pf, input, fsp->location);
1680
1681 ret = ice_fdir_write_all_fltr(pf, input, true);
1682 if (ret)
1683 goto remove_sw_rule;
1684
1685 goto release_lock;
1686
1687remove_sw_rule:
1688 ice_fdir_update_cntrs(hw, input->flow_type, false);
1689 list_del(&input->fltr_node);
1690release_lock:
1691 mutex_unlock(&hw->fdir_fltr_lock);
1692free_input:
1693 if (ret)
1694 devm_kfree(dev, input);
1695
1696 return ret;
1697}