1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (C) 2022, Intel Corporation. */
3
4 #include "ice_virtchnl.h"
5 #include "ice_vf_lib_private.h"
6 #include "ice.h"
7 #include "ice_base.h"
8 #include "ice_lib.h"
9 #include "ice_fltr.h"
10 #include "ice_virtchnl_allowlist.h"
11 #include "ice_vf_vsi_vlan_ops.h"
12 #include "ice_vlan.h"
13 #include "ice_flex_pipe.h"
14 #include "ice_dcb_lib.h"
15
16 #define FIELD_SELECTOR(proto_hdr_field) \
17 BIT((proto_hdr_field) & PROTO_HDR_FIELD_MASK)
18
19 struct ice_vc_hdr_match_type {
20 u32 vc_hdr; /* virtchnl headers (VIRTCHNL_PROTO_HDR_XXX) */
21 u32 ice_hdr; /* ice headers (ICE_FLOW_SEG_HDR_XXX) */
22 };
23
24 static const struct ice_vc_hdr_match_type ice_vc_hdr_list[] = {
25 {VIRTCHNL_PROTO_HDR_NONE, ICE_FLOW_SEG_HDR_NONE},
26 {VIRTCHNL_PROTO_HDR_ETH, ICE_FLOW_SEG_HDR_ETH},
27 {VIRTCHNL_PROTO_HDR_S_VLAN, ICE_FLOW_SEG_HDR_VLAN},
28 {VIRTCHNL_PROTO_HDR_C_VLAN, ICE_FLOW_SEG_HDR_VLAN},
29 {VIRTCHNL_PROTO_HDR_IPV4, ICE_FLOW_SEG_HDR_IPV4 |
30 ICE_FLOW_SEG_HDR_IPV_OTHER},
31 {VIRTCHNL_PROTO_HDR_IPV6, ICE_FLOW_SEG_HDR_IPV6 |
32 ICE_FLOW_SEG_HDR_IPV_OTHER},
33 {VIRTCHNL_PROTO_HDR_TCP, ICE_FLOW_SEG_HDR_TCP},
34 {VIRTCHNL_PROTO_HDR_UDP, ICE_FLOW_SEG_HDR_UDP},
35 {VIRTCHNL_PROTO_HDR_SCTP, ICE_FLOW_SEG_HDR_SCTP},
36 {VIRTCHNL_PROTO_HDR_PPPOE, ICE_FLOW_SEG_HDR_PPPOE},
37 {VIRTCHNL_PROTO_HDR_GTPU_IP, ICE_FLOW_SEG_HDR_GTPU_IP},
38 {VIRTCHNL_PROTO_HDR_GTPU_EH, ICE_FLOW_SEG_HDR_GTPU_EH},
39 {VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_DWN,
40 ICE_FLOW_SEG_HDR_GTPU_DWN},
41 {VIRTCHNL_PROTO_HDR_GTPU_EH_PDU_UP,
42 ICE_FLOW_SEG_HDR_GTPU_UP},
43 {VIRTCHNL_PROTO_HDR_L2TPV3, ICE_FLOW_SEG_HDR_L2TPV3},
44 {VIRTCHNL_PROTO_HDR_ESP, ICE_FLOW_SEG_HDR_ESP},
45 {VIRTCHNL_PROTO_HDR_AH, ICE_FLOW_SEG_HDR_AH},
46 {VIRTCHNL_PROTO_HDR_PFCP, ICE_FLOW_SEG_HDR_PFCP_SESSION},
47 };
48
49 struct ice_vc_hash_field_match_type {
50 u32 vc_hdr; /* virtchnl headers
51 * (VIRTCHNL_PROTO_HDR_XXX)
52 */
53 u32 vc_hash_field; /* virtchnl hash fields selector
54 * FIELD_SELECTOR((VIRTCHNL_PROTO_HDR_ETH_XXX))
55 */
56 u64 ice_hash_field; /* ice hash fields
57 * (BIT_ULL(ICE_FLOW_FIELD_IDX_XXX))
58 */
59 };
60
61 static const struct
62 ice_vc_hash_field_match_type ice_vc_hash_field_list[] = {
63 {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC),
64 BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_SA)},
65 {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST),
66 BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_DA)},
67 {VIRTCHNL_PROTO_HDR_ETH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_SRC) |
68 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_DST),
69 ICE_FLOW_HASH_ETH},
70 {VIRTCHNL_PROTO_HDR_ETH,
71 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ETH_ETHERTYPE),
72 BIT_ULL(ICE_FLOW_FIELD_IDX_ETH_TYPE)},
73 {VIRTCHNL_PROTO_HDR_S_VLAN,
74 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_S_VLAN_ID),
75 BIT_ULL(ICE_FLOW_FIELD_IDX_S_VLAN)},
76 {VIRTCHNL_PROTO_HDR_C_VLAN,
77 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_C_VLAN_ID),
78 BIT_ULL(ICE_FLOW_FIELD_IDX_C_VLAN)},
79 {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC),
80 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA)},
81 {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST),
82 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA)},
83 {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
84 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST),
85 ICE_FLOW_HASH_IPV4},
86 {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
87 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
88 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_SA) |
89 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
90 {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
91 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
92 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_DA) |
93 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
94 {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_SRC) |
95 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_DST) |
96 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
97 ICE_FLOW_HASH_IPV4 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
98 {VIRTCHNL_PROTO_HDR_IPV4, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV4_PROT),
99 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV4_PROT)},
100 {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC),
101 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA)},
102 {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST),
103 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA)},
104 {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
105 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST),
106 ICE_FLOW_HASH_IPV6},
107 {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
108 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
109 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_SA) |
110 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
111 {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) |
112 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
113 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_DA) |
114 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
115 {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_SRC) |
116 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_DST) |
117 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
118 ICE_FLOW_HASH_IPV6 | BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
119 {VIRTCHNL_PROTO_HDR_IPV6, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_IPV6_PROT),
120 BIT_ULL(ICE_FLOW_FIELD_IDX_IPV6_PROT)},
121 {VIRTCHNL_PROTO_HDR_TCP,
122 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT),
123 BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_SRC_PORT)},
124 {VIRTCHNL_PROTO_HDR_TCP,
125 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT),
126 BIT_ULL(ICE_FLOW_FIELD_IDX_TCP_DST_PORT)},
127 {VIRTCHNL_PROTO_HDR_TCP,
128 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_SRC_PORT) |
129 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_TCP_DST_PORT),
130 ICE_FLOW_HASH_TCP_PORT},
131 {VIRTCHNL_PROTO_HDR_UDP,
132 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT),
133 BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_SRC_PORT)},
134 {VIRTCHNL_PROTO_HDR_UDP,
135 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT),
136 BIT_ULL(ICE_FLOW_FIELD_IDX_UDP_DST_PORT)},
137 {VIRTCHNL_PROTO_HDR_UDP,
138 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_SRC_PORT) |
139 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_UDP_DST_PORT),
140 ICE_FLOW_HASH_UDP_PORT},
141 {VIRTCHNL_PROTO_HDR_SCTP,
142 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT),
143 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_SRC_PORT)},
144 {VIRTCHNL_PROTO_HDR_SCTP,
145 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT),
146 BIT_ULL(ICE_FLOW_FIELD_IDX_SCTP_DST_PORT)},
147 {VIRTCHNL_PROTO_HDR_SCTP,
148 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_SRC_PORT) |
149 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_SCTP_DST_PORT),
150 ICE_FLOW_HASH_SCTP_PORT},
151 {VIRTCHNL_PROTO_HDR_PPPOE,
152 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PPPOE_SESS_ID),
153 BIT_ULL(ICE_FLOW_FIELD_IDX_PPPOE_SESS_ID)},
154 {VIRTCHNL_PROTO_HDR_GTPU_IP,
155 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_GTPU_IP_TEID),
156 BIT_ULL(ICE_FLOW_FIELD_IDX_GTPU_IP_TEID)},
157 {VIRTCHNL_PROTO_HDR_L2TPV3,
158 FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_L2TPV3_SESS_ID),
159 BIT_ULL(ICE_FLOW_FIELD_IDX_L2TPV3_SESS_ID)},
160 {VIRTCHNL_PROTO_HDR_ESP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_ESP_SPI),
161 BIT_ULL(ICE_FLOW_FIELD_IDX_ESP_SPI)},
162 {VIRTCHNL_PROTO_HDR_AH, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_AH_SPI),
163 BIT_ULL(ICE_FLOW_FIELD_IDX_AH_SPI)},
164 {VIRTCHNL_PROTO_HDR_PFCP, FIELD_SELECTOR(VIRTCHNL_PROTO_HDR_PFCP_SEID),
165 BIT_ULL(ICE_FLOW_FIELD_IDX_PFCP_SEID)},
166 };
167
168 /**
169 * ice_vc_vf_broadcast - Broadcast a message to all VFs on PF
170 * @pf: pointer to the PF structure
171 * @v_opcode: operation code
172 * @v_retval: return value
173 * @msg: pointer to the msg buffer
174 * @msglen: msg length
175 */
176 static void
ice_vc_vf_broadcast(struct ice_pf * pf,enum virtchnl_ops v_opcode,enum virtchnl_status_code v_retval,u8 * msg,u16 msglen)177 ice_vc_vf_broadcast(struct ice_pf *pf, enum virtchnl_ops v_opcode,
178 enum virtchnl_status_code v_retval, u8 *msg, u16 msglen)
179 {
180 struct ice_hw *hw = &pf->hw;
181 struct ice_vf *vf;
182 unsigned int bkt;
183
184 mutex_lock(&pf->vfs.table_lock);
185 ice_for_each_vf(pf, bkt, vf) {
186 /* Not all vfs are enabled so skip the ones that are not */
187 if (!test_bit(ICE_VF_STATE_INIT, vf->vf_states) &&
188 !test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
189 continue;
190
191 /* Ignore return value on purpose - a given VF may fail, but
192 * we need to keep going and send to all of them
193 */
194 ice_aq_send_msg_to_vf(hw, vf->vf_id, v_opcode, v_retval, msg,
195 msglen, NULL);
196 }
197 mutex_unlock(&pf->vfs.table_lock);
198 }
199
200 /**
201 * ice_set_pfe_link - Set the link speed/status of the virtchnl_pf_event
202 * @vf: pointer to the VF structure
203 * @pfe: pointer to the virtchnl_pf_event to set link speed/status for
204 * @ice_link_speed: link speed specified by ICE_AQ_LINK_SPEED_*
205 * @link_up: whether or not to set the link up/down
206 */
207 static void
ice_set_pfe_link(struct ice_vf * vf,struct virtchnl_pf_event * pfe,int ice_link_speed,bool link_up)208 ice_set_pfe_link(struct ice_vf *vf, struct virtchnl_pf_event *pfe,
209 int ice_link_speed, bool link_up)
210 {
211 if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED) {
212 pfe->event_data.link_event_adv.link_status = link_up;
213 /* Speed in Mbps */
214 pfe->event_data.link_event_adv.link_speed =
215 ice_conv_link_speed_to_virtchnl(true, ice_link_speed);
216 } else {
217 pfe->event_data.link_event.link_status = link_up;
218 /* Legacy method for virtchnl link speeds */
219 pfe->event_data.link_event.link_speed =
220 (enum virtchnl_link_speed)
221 ice_conv_link_speed_to_virtchnl(false, ice_link_speed);
222 }
223 }
224
225 /**
226 * ice_vc_notify_vf_link_state - Inform a VF of link status
227 * @vf: pointer to the VF structure
228 *
229 * send a link status message to a single VF
230 */
ice_vc_notify_vf_link_state(struct ice_vf * vf)231 void ice_vc_notify_vf_link_state(struct ice_vf *vf)
232 {
233 struct virtchnl_pf_event pfe = { 0 };
234 struct ice_hw *hw = &vf->pf->hw;
235
236 pfe.event = VIRTCHNL_EVENT_LINK_CHANGE;
237 pfe.severity = PF_EVENT_SEVERITY_INFO;
238
239 if (ice_is_vf_link_up(vf))
240 ice_set_pfe_link(vf, &pfe,
241 hw->port_info->phy.link_info.link_speed, true);
242 else
243 ice_set_pfe_link(vf, &pfe, ICE_AQ_LINK_SPEED_UNKNOWN, false);
244
245 ice_aq_send_msg_to_vf(hw, vf->vf_id, VIRTCHNL_OP_EVENT,
246 VIRTCHNL_STATUS_SUCCESS, (u8 *)&pfe,
247 sizeof(pfe), NULL);
248 }
249
250 /**
251 * ice_vc_notify_link_state - Inform all VFs on a PF of link status
252 * @pf: pointer to the PF structure
253 */
ice_vc_notify_link_state(struct ice_pf * pf)254 void ice_vc_notify_link_state(struct ice_pf *pf)
255 {
256 struct ice_vf *vf;
257 unsigned int bkt;
258
259 mutex_lock(&pf->vfs.table_lock);
260 ice_for_each_vf(pf, bkt, vf)
261 ice_vc_notify_vf_link_state(vf);
262 mutex_unlock(&pf->vfs.table_lock);
263 }
264
265 /**
266 * ice_vc_notify_reset - Send pending reset message to all VFs
267 * @pf: pointer to the PF structure
268 *
269 * indicate a pending reset to all VFs on a given PF
270 */
ice_vc_notify_reset(struct ice_pf * pf)271 void ice_vc_notify_reset(struct ice_pf *pf)
272 {
273 struct virtchnl_pf_event pfe;
274
275 if (!ice_has_vfs(pf))
276 return;
277
278 pfe.event = VIRTCHNL_EVENT_RESET_IMPENDING;
279 pfe.severity = PF_EVENT_SEVERITY_CERTAIN_DOOM;
280 ice_vc_vf_broadcast(pf, VIRTCHNL_OP_EVENT, VIRTCHNL_STATUS_SUCCESS,
281 (u8 *)&pfe, sizeof(struct virtchnl_pf_event));
282 }
283
284 /**
285 * ice_vc_send_msg_to_vf - Send message to VF
286 * @vf: pointer to the VF info
287 * @v_opcode: virtual channel opcode
288 * @v_retval: virtual channel return value
289 * @msg: pointer to the msg buffer
290 * @msglen: msg length
291 *
292 * send msg to VF
293 */
294 int
ice_vc_send_msg_to_vf(struct ice_vf * vf,u32 v_opcode,enum virtchnl_status_code v_retval,u8 * msg,u16 msglen)295 ice_vc_send_msg_to_vf(struct ice_vf *vf, u32 v_opcode,
296 enum virtchnl_status_code v_retval, u8 *msg, u16 msglen)
297 {
298 struct device *dev;
299 struct ice_pf *pf;
300 int aq_ret;
301
302 pf = vf->pf;
303 dev = ice_pf_to_dev(pf);
304
305 aq_ret = ice_aq_send_msg_to_vf(&pf->hw, vf->vf_id, v_opcode, v_retval,
306 msg, msglen, NULL);
307 if (aq_ret && pf->hw.mailboxq.sq_last_status != ICE_AQ_RC_ENOSYS) {
308 dev_info(dev, "Unable to send the message to VF %d ret %d aq_err %s\n",
309 vf->vf_id, aq_ret,
310 ice_aq_str(pf->hw.mailboxq.sq_last_status));
311 return -EIO;
312 }
313
314 return 0;
315 }
316
317 /**
318 * ice_vc_get_ver_msg
319 * @vf: pointer to the VF info
320 * @msg: pointer to the msg buffer
321 *
322 * called from the VF to request the API version used by the PF
323 */
ice_vc_get_ver_msg(struct ice_vf * vf,u8 * msg)324 static int ice_vc_get_ver_msg(struct ice_vf *vf, u8 *msg)
325 {
326 struct virtchnl_version_info info = {
327 VIRTCHNL_VERSION_MAJOR, VIRTCHNL_VERSION_MINOR
328 };
329
330 vf->vf_ver = *(struct virtchnl_version_info *)msg;
331 /* VFs running the 1.0 API expect to get 1.0 back or they will cry. */
332 if (VF_IS_V10(&vf->vf_ver))
333 info.minor = VIRTCHNL_VERSION_MINOR_NO_VF_CAPS;
334
335 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_VERSION,
336 VIRTCHNL_STATUS_SUCCESS, (u8 *)&info,
337 sizeof(struct virtchnl_version_info));
338 }
339
340 /**
341 * ice_vc_get_max_frame_size - get max frame size allowed for VF
342 * @vf: VF used to determine max frame size
343 *
344 * Max frame size is determined based on the current port's max frame size and
345 * whether a port VLAN is configured on this VF. The VF is not aware whether
346 * it's in a port VLAN so the PF needs to account for this in max frame size
347 * checks and sending the max frame size to the VF.
348 */
ice_vc_get_max_frame_size(struct ice_vf * vf)349 static u16 ice_vc_get_max_frame_size(struct ice_vf *vf)
350 {
351 struct ice_port_info *pi = ice_vf_get_port_info(vf);
352 u16 max_frame_size;
353
354 max_frame_size = pi->phy.link_info.max_frame_size;
355
356 if (ice_vf_is_port_vlan_ena(vf))
357 max_frame_size -= VLAN_HLEN;
358
359 return max_frame_size;
360 }
361
362 /**
363 * ice_vc_get_vlan_caps
364 * @hw: pointer to the hw
365 * @vf: pointer to the VF info
366 * @vsi: pointer to the VSI
367 * @driver_caps: current driver caps
368 *
369 * Return 0 if there is no VLAN caps supported, or VLAN caps value
370 */
371 static u32
ice_vc_get_vlan_caps(struct ice_hw * hw,struct ice_vf * vf,struct ice_vsi * vsi,u32 driver_caps)372 ice_vc_get_vlan_caps(struct ice_hw *hw, struct ice_vf *vf, struct ice_vsi *vsi,
373 u32 driver_caps)
374 {
375 if (ice_is_eswitch_mode_switchdev(vf->pf))
376 /* In switchdev setting VLAN from VF isn't supported */
377 return 0;
378
379 if (driver_caps & VIRTCHNL_VF_OFFLOAD_VLAN_V2) {
380 /* VLAN offloads based on current device configuration */
381 return VIRTCHNL_VF_OFFLOAD_VLAN_V2;
382 } else if (driver_caps & VIRTCHNL_VF_OFFLOAD_VLAN) {
383 /* allow VF to negotiate VIRTCHNL_VF_OFFLOAD explicitly for
384 * these two conditions, which amounts to guest VLAN filtering
385 * and offloads being based on the inner VLAN or the
386 * inner/single VLAN respectively and don't allow VF to
387 * negotiate VIRTCHNL_VF_OFFLOAD in any other cases
388 */
389 if (ice_is_dvm_ena(hw) && ice_vf_is_port_vlan_ena(vf)) {
390 return VIRTCHNL_VF_OFFLOAD_VLAN;
391 } else if (!ice_is_dvm_ena(hw) &&
392 !ice_vf_is_port_vlan_ena(vf)) {
393 /* configure backward compatible support for VFs that
394 * only support VIRTCHNL_VF_OFFLOAD_VLAN, the PF is
395 * configured in SVM, and no port VLAN is configured
396 */
397 ice_vf_vsi_cfg_svm_legacy_vlan_mode(vsi);
398 return VIRTCHNL_VF_OFFLOAD_VLAN;
399 } else if (ice_is_dvm_ena(hw)) {
400 /* configure software offloaded VLAN support when DVM
401 * is enabled, but no port VLAN is enabled
402 */
403 ice_vf_vsi_cfg_dvm_legacy_vlan_mode(vsi);
404 }
405 }
406
407 return 0;
408 }
409
410 /**
411 * ice_vc_get_vf_res_msg
412 * @vf: pointer to the VF info
413 * @msg: pointer to the msg buffer
414 *
415 * called from the VF to request its resources
416 */
ice_vc_get_vf_res_msg(struct ice_vf * vf,u8 * msg)417 static int ice_vc_get_vf_res_msg(struct ice_vf *vf, u8 *msg)
418 {
419 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
420 struct virtchnl_vf_resource *vfres = NULL;
421 struct ice_hw *hw = &vf->pf->hw;
422 struct ice_vsi *vsi;
423 int len = 0;
424 int ret;
425
426 if (ice_check_vf_init(vf)) {
427 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
428 goto err;
429 }
430
431 len = sizeof(struct virtchnl_vf_resource);
432
433 vfres = kzalloc(len, GFP_KERNEL);
434 if (!vfres) {
435 v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
436 len = 0;
437 goto err;
438 }
439 if (VF_IS_V11(&vf->vf_ver))
440 vf->driver_caps = *(u32 *)msg;
441 else
442 vf->driver_caps = VIRTCHNL_VF_OFFLOAD_L2 |
443 VIRTCHNL_VF_OFFLOAD_RSS_REG |
444 VIRTCHNL_VF_OFFLOAD_VLAN;
445
446 vfres->vf_cap_flags = VIRTCHNL_VF_OFFLOAD_L2;
447 vsi = ice_get_vf_vsi(vf);
448 if (!vsi) {
449 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
450 goto err;
451 }
452
453 vfres->vf_cap_flags |= ice_vc_get_vlan_caps(hw, vf, vsi,
454 vf->driver_caps);
455
456 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PF) {
457 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PF;
458 } else {
459 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_AQ)
460 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_AQ;
461 else
462 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_REG;
463 }
464
465 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_FDIR_PF)
466 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_FDIR_PF;
467
468 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
469 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
470
471 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
472 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
473
474 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)
475 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
476
477 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING)
478 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
479
480 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
481 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
482
483 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
484 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
485
486 if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
487 vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
488
489 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF)
490 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF;
491
492 if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO)
493 vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_USO;
494
495 vfres->num_vsis = 1;
496 /* Tx and Rx queue are equal for VF */
497 vfres->num_queue_pairs = vsi->num_txq;
498 vfres->max_vectors = vf->pf->vfs.num_msix_per;
499 vfres->rss_key_size = ICE_VSIQF_HKEY_ARRAY_SIZE;
500 vfres->rss_lut_size = ICE_VSIQF_HLUT_ARRAY_SIZE;
501 vfres->max_mtu = ice_vc_get_max_frame_size(vf);
502
503 vfres->vsi_res[0].vsi_id = vf->lan_vsi_num;
504 vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
505 vfres->vsi_res[0].num_queue_pairs = vsi->num_txq;
506 ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
507 vf->hw_lan_addr.addr);
508
509 /* match guest capabilities */
510 vf->driver_caps = vfres->vf_cap_flags;
511
512 ice_vc_set_caps_allowlist(vf);
513 ice_vc_set_working_allowlist(vf);
514
515 set_bit(ICE_VF_STATE_ACTIVE, vf->vf_states);
516
517 err:
518 /* send the response back to the VF */
519 ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, v_ret,
520 (u8 *)vfres, len);
521
522 kfree(vfres);
523 return ret;
524 }
525
526 /**
527 * ice_vc_reset_vf_msg
528 * @vf: pointer to the VF info
529 *
530 * called from the VF to reset itself,
531 * unlike other virtchnl messages, PF driver
532 * doesn't send the response back to the VF
533 */
ice_vc_reset_vf_msg(struct ice_vf * vf)534 static void ice_vc_reset_vf_msg(struct ice_vf *vf)
535 {
536 if (test_bit(ICE_VF_STATE_INIT, vf->vf_states))
537 ice_reset_vf(vf, 0);
538 }
539
540 /**
541 * ice_vc_isvalid_vsi_id
542 * @vf: pointer to the VF info
543 * @vsi_id: VF relative VSI ID
544 *
545 * check for the valid VSI ID
546 */
ice_vc_isvalid_vsi_id(struct ice_vf * vf,u16 vsi_id)547 bool ice_vc_isvalid_vsi_id(struct ice_vf *vf, u16 vsi_id)
548 {
549 struct ice_pf *pf = vf->pf;
550 struct ice_vsi *vsi;
551
552 vsi = ice_find_vsi(pf, vsi_id);
553
554 return (vsi && (vsi->vf == vf));
555 }
556
557 /**
558 * ice_vc_isvalid_q_id
559 * @vf: pointer to the VF info
560 * @vsi_id: VSI ID
561 * @qid: VSI relative queue ID
562 *
563 * check for the valid queue ID
564 */
ice_vc_isvalid_q_id(struct ice_vf * vf,u16 vsi_id,u8 qid)565 static bool ice_vc_isvalid_q_id(struct ice_vf *vf, u16 vsi_id, u8 qid)
566 {
567 struct ice_vsi *vsi = ice_find_vsi(vf->pf, vsi_id);
568 /* allocated Tx and Rx queues should be always equal for VF VSI */
569 return (vsi && (qid < vsi->alloc_txq));
570 }
571
572 /**
573 * ice_vc_isvalid_ring_len
574 * @ring_len: length of ring
575 *
576 * check for the valid ring count, should be multiple of ICE_REQ_DESC_MULTIPLE
577 * or zero
578 */
ice_vc_isvalid_ring_len(u16 ring_len)579 static bool ice_vc_isvalid_ring_len(u16 ring_len)
580 {
581 return ring_len == 0 ||
582 (ring_len >= ICE_MIN_NUM_DESC &&
583 ring_len <= ICE_MAX_NUM_DESC &&
584 !(ring_len % ICE_REQ_DESC_MULTIPLE));
585 }
586
587 /**
588 * ice_vc_validate_pattern
589 * @vf: pointer to the VF info
590 * @proto: virtchnl protocol headers
591 *
592 * validate the pattern is supported or not.
593 *
594 * Return: true on success, false on error.
595 */
596 bool
ice_vc_validate_pattern(struct ice_vf * vf,struct virtchnl_proto_hdrs * proto)597 ice_vc_validate_pattern(struct ice_vf *vf, struct virtchnl_proto_hdrs *proto)
598 {
599 bool is_ipv4 = false;
600 bool is_ipv6 = false;
601 bool is_udp = false;
602 u16 ptype = -1;
603 int i = 0;
604
605 while (i < proto->count &&
606 proto->proto_hdr[i].type != VIRTCHNL_PROTO_HDR_NONE) {
607 switch (proto->proto_hdr[i].type) {
608 case VIRTCHNL_PROTO_HDR_ETH:
609 ptype = ICE_PTYPE_MAC_PAY;
610 break;
611 case VIRTCHNL_PROTO_HDR_IPV4:
612 ptype = ICE_PTYPE_IPV4_PAY;
613 is_ipv4 = true;
614 break;
615 case VIRTCHNL_PROTO_HDR_IPV6:
616 ptype = ICE_PTYPE_IPV6_PAY;
617 is_ipv6 = true;
618 break;
619 case VIRTCHNL_PROTO_HDR_UDP:
620 if (is_ipv4)
621 ptype = ICE_PTYPE_IPV4_UDP_PAY;
622 else if (is_ipv6)
623 ptype = ICE_PTYPE_IPV6_UDP_PAY;
624 is_udp = true;
625 break;
626 case VIRTCHNL_PROTO_HDR_TCP:
627 if (is_ipv4)
628 ptype = ICE_PTYPE_IPV4_TCP_PAY;
629 else if (is_ipv6)
630 ptype = ICE_PTYPE_IPV6_TCP_PAY;
631 break;
632 case VIRTCHNL_PROTO_HDR_SCTP:
633 if (is_ipv4)
634 ptype = ICE_PTYPE_IPV4_SCTP_PAY;
635 else if (is_ipv6)
636 ptype = ICE_PTYPE_IPV6_SCTP_PAY;
637 break;
638 case VIRTCHNL_PROTO_HDR_GTPU_IP:
639 case VIRTCHNL_PROTO_HDR_GTPU_EH:
640 if (is_ipv4)
641 ptype = ICE_MAC_IPV4_GTPU;
642 else if (is_ipv6)
643 ptype = ICE_MAC_IPV6_GTPU;
644 goto out;
645 case VIRTCHNL_PROTO_HDR_L2TPV3:
646 if (is_ipv4)
647 ptype = ICE_MAC_IPV4_L2TPV3;
648 else if (is_ipv6)
649 ptype = ICE_MAC_IPV6_L2TPV3;
650 goto out;
651 case VIRTCHNL_PROTO_HDR_ESP:
652 if (is_ipv4)
653 ptype = is_udp ? ICE_MAC_IPV4_NAT_T_ESP :
654 ICE_MAC_IPV4_ESP;
655 else if (is_ipv6)
656 ptype = is_udp ? ICE_MAC_IPV6_NAT_T_ESP :
657 ICE_MAC_IPV6_ESP;
658 goto out;
659 case VIRTCHNL_PROTO_HDR_AH:
660 if (is_ipv4)
661 ptype = ICE_MAC_IPV4_AH;
662 else if (is_ipv6)
663 ptype = ICE_MAC_IPV6_AH;
664 goto out;
665 case VIRTCHNL_PROTO_HDR_PFCP:
666 if (is_ipv4)
667 ptype = ICE_MAC_IPV4_PFCP_SESSION;
668 else if (is_ipv6)
669 ptype = ICE_MAC_IPV6_PFCP_SESSION;
670 goto out;
671 default:
672 break;
673 }
674 i++;
675 }
676
677 out:
678 return ice_hw_ptype_ena(&vf->pf->hw, ptype);
679 }
680
681 /**
682 * ice_vc_parse_rss_cfg - parses hash fields and headers from
683 * a specific virtchnl RSS cfg
684 * @hw: pointer to the hardware
685 * @rss_cfg: pointer to the virtchnl RSS cfg
686 * @addl_hdrs: pointer to the protocol header fields (ICE_FLOW_SEG_HDR_*)
687 * to configure
688 * @hash_flds: pointer to the hash bit fields (ICE_FLOW_HASH_*) to configure
689 *
690 * Return true if all the protocol header and hash fields in the RSS cfg could
691 * be parsed, else return false
692 *
693 * This function parses the virtchnl RSS cfg to be the intended
694 * hash fields and the intended header for RSS configuration
695 */
696 static bool
ice_vc_parse_rss_cfg(struct ice_hw * hw,struct virtchnl_rss_cfg * rss_cfg,u32 * addl_hdrs,u64 * hash_flds)697 ice_vc_parse_rss_cfg(struct ice_hw *hw, struct virtchnl_rss_cfg *rss_cfg,
698 u32 *addl_hdrs, u64 *hash_flds)
699 {
700 const struct ice_vc_hash_field_match_type *hf_list;
701 const struct ice_vc_hdr_match_type *hdr_list;
702 int i, hf_list_len, hdr_list_len;
703
704 hf_list = ice_vc_hash_field_list;
705 hf_list_len = ARRAY_SIZE(ice_vc_hash_field_list);
706 hdr_list = ice_vc_hdr_list;
707 hdr_list_len = ARRAY_SIZE(ice_vc_hdr_list);
708
709 for (i = 0; i < rss_cfg->proto_hdrs.count; i++) {
710 struct virtchnl_proto_hdr *proto_hdr =
711 &rss_cfg->proto_hdrs.proto_hdr[i];
712 bool hdr_found = false;
713 int j;
714
715 /* Find matched ice headers according to virtchnl headers. */
716 for (j = 0; j < hdr_list_len; j++) {
717 struct ice_vc_hdr_match_type hdr_map = hdr_list[j];
718
719 if (proto_hdr->type == hdr_map.vc_hdr) {
720 *addl_hdrs |= hdr_map.ice_hdr;
721 hdr_found = true;
722 }
723 }
724
725 if (!hdr_found)
726 return false;
727
728 /* Find matched ice hash fields according to
729 * virtchnl hash fields.
730 */
731 for (j = 0; j < hf_list_len; j++) {
732 struct ice_vc_hash_field_match_type hf_map = hf_list[j];
733
734 if (proto_hdr->type == hf_map.vc_hdr &&
735 proto_hdr->field_selector == hf_map.vc_hash_field) {
736 *hash_flds |= hf_map.ice_hash_field;
737 break;
738 }
739 }
740 }
741
742 return true;
743 }
744
745 /**
746 * ice_vf_adv_rss_offload_ena - determine if capabilities support advanced
747 * RSS offloads
748 * @caps: VF driver negotiated capabilities
749 *
750 * Return true if VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF capability is set,
751 * else return false
752 */
ice_vf_adv_rss_offload_ena(u32 caps)753 static bool ice_vf_adv_rss_offload_ena(u32 caps)
754 {
755 return !!(caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF);
756 }
757
758 /**
759 * ice_vc_handle_rss_cfg
760 * @vf: pointer to the VF info
761 * @msg: pointer to the message buffer
762 * @add: add a RSS config if true, otherwise delete a RSS config
763 *
764 * This function adds/deletes a RSS config
765 */
ice_vc_handle_rss_cfg(struct ice_vf * vf,u8 * msg,bool add)766 static int ice_vc_handle_rss_cfg(struct ice_vf *vf, u8 *msg, bool add)
767 {
768 u32 v_opcode = add ? VIRTCHNL_OP_ADD_RSS_CFG : VIRTCHNL_OP_DEL_RSS_CFG;
769 struct virtchnl_rss_cfg *rss_cfg = (struct virtchnl_rss_cfg *)msg;
770 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
771 struct device *dev = ice_pf_to_dev(vf->pf);
772 struct ice_hw *hw = &vf->pf->hw;
773 struct ice_vsi *vsi;
774
775 if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
776 dev_dbg(dev, "VF %d attempting to configure RSS, but RSS is not supported by the PF\n",
777 vf->vf_id);
778 v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED;
779 goto error_param;
780 }
781
782 if (!ice_vf_adv_rss_offload_ena(vf->driver_caps)) {
783 dev_dbg(dev, "VF %d attempting to configure RSS, but Advanced RSS offload is not supported\n",
784 vf->vf_id);
785 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
786 goto error_param;
787 }
788
789 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
790 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
791 goto error_param;
792 }
793
794 if (rss_cfg->proto_hdrs.count > VIRTCHNL_MAX_NUM_PROTO_HDRS ||
795 rss_cfg->rss_algorithm < VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC ||
796 rss_cfg->rss_algorithm > VIRTCHNL_RSS_ALG_XOR_SYMMETRIC) {
797 dev_dbg(dev, "VF %d attempting to configure RSS, but RSS configuration is not valid\n",
798 vf->vf_id);
799 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
800 goto error_param;
801 }
802
803 vsi = ice_get_vf_vsi(vf);
804 if (!vsi) {
805 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
806 goto error_param;
807 }
808
809 if (!ice_vc_validate_pattern(vf, &rss_cfg->proto_hdrs)) {
810 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
811 goto error_param;
812 }
813
814 if (rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_R_ASYMMETRIC) {
815 struct ice_vsi_ctx *ctx;
816 u8 lut_type, hash_type;
817 int status;
818
819 lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI;
820 hash_type = add ? ICE_AQ_VSI_Q_OPT_RSS_XOR :
821 ICE_AQ_VSI_Q_OPT_RSS_TPLZ;
822
823 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
824 if (!ctx) {
825 v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
826 goto error_param;
827 }
828
829 ctx->info.q_opt_rss = ((lut_type <<
830 ICE_AQ_VSI_Q_OPT_RSS_LUT_S) &
831 ICE_AQ_VSI_Q_OPT_RSS_LUT_M) |
832 (hash_type &
833 ICE_AQ_VSI_Q_OPT_RSS_HASH_M);
834
835 /* Preserve existing queueing option setting */
836 ctx->info.q_opt_rss |= (vsi->info.q_opt_rss &
837 ICE_AQ_VSI_Q_OPT_RSS_GBL_LUT_M);
838 ctx->info.q_opt_tc = vsi->info.q_opt_tc;
839 ctx->info.q_opt_flags = vsi->info.q_opt_rss;
840
841 ctx->info.valid_sections =
842 cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID);
843
844 status = ice_update_vsi(hw, vsi->idx, ctx, NULL);
845 if (status) {
846 dev_err(dev, "update VSI for RSS failed, err %d aq_err %s\n",
847 status, ice_aq_str(hw->adminq.sq_last_status));
848 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
849 } else {
850 vsi->info.q_opt_rss = ctx->info.q_opt_rss;
851 }
852
853 kfree(ctx);
854 } else {
855 u32 addl_hdrs = ICE_FLOW_SEG_HDR_NONE;
856 u64 hash_flds = ICE_HASH_INVALID;
857
858 if (!ice_vc_parse_rss_cfg(hw, rss_cfg, &addl_hdrs,
859 &hash_flds)) {
860 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
861 goto error_param;
862 }
863
864 if (add) {
865 if (ice_add_rss_cfg(hw, vsi->idx, hash_flds,
866 addl_hdrs)) {
867 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
868 dev_err(dev, "ice_add_rss_cfg failed for vsi = %d, v_ret = %d\n",
869 vsi->vsi_num, v_ret);
870 }
871 } else {
872 int status;
873
874 status = ice_rem_rss_cfg(hw, vsi->idx, hash_flds,
875 addl_hdrs);
876 /* We just ignore -ENOENT, because if two configurations
877 * share the same profile remove one of them actually
878 * removes both, since the profile is deleted.
879 */
880 if (status && status != -ENOENT) {
881 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
882 dev_err(dev, "ice_rem_rss_cfg failed for VF ID:%d, error:%d\n",
883 vf->vf_id, status);
884 }
885 }
886 }
887
888 error_param:
889 return ice_vc_send_msg_to_vf(vf, v_opcode, v_ret, NULL, 0);
890 }
891
892 /**
893 * ice_vc_config_rss_key
894 * @vf: pointer to the VF info
895 * @msg: pointer to the msg buffer
896 *
897 * Configure the VF's RSS key
898 */
ice_vc_config_rss_key(struct ice_vf * vf,u8 * msg)899 static int ice_vc_config_rss_key(struct ice_vf *vf, u8 *msg)
900 {
901 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
902 struct virtchnl_rss_key *vrk =
903 (struct virtchnl_rss_key *)msg;
904 struct ice_vsi *vsi;
905
906 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
907 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
908 goto error_param;
909 }
910
911 if (!ice_vc_isvalid_vsi_id(vf, vrk->vsi_id)) {
912 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
913 goto error_param;
914 }
915
916 if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) {
917 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
918 goto error_param;
919 }
920
921 if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
922 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
923 goto error_param;
924 }
925
926 vsi = ice_get_vf_vsi(vf);
927 if (!vsi) {
928 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
929 goto error_param;
930 }
931
932 if (ice_set_rss_key(vsi, vrk->key))
933 v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
934 error_param:
935 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, v_ret,
936 NULL, 0);
937 }
938
939 /**
940 * ice_vc_config_rss_lut
941 * @vf: pointer to the VF info
942 * @msg: pointer to the msg buffer
943 *
944 * Configure the VF's RSS LUT
945 */
ice_vc_config_rss_lut(struct ice_vf * vf,u8 * msg)946 static int ice_vc_config_rss_lut(struct ice_vf *vf, u8 *msg)
947 {
948 struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg;
949 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
950 struct ice_vsi *vsi;
951
952 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
953 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
954 goto error_param;
955 }
956
957 if (!ice_vc_isvalid_vsi_id(vf, vrl->vsi_id)) {
958 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
959 goto error_param;
960 }
961
962 if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) {
963 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
964 goto error_param;
965 }
966
967 if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
968 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
969 goto error_param;
970 }
971
972 vsi = ice_get_vf_vsi(vf);
973 if (!vsi) {
974 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
975 goto error_param;
976 }
977
978 if (ice_set_rss_lut(vsi, vrl->lut, ICE_VSIQF_HLUT_ARRAY_SIZE))
979 v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
980 error_param:
981 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, v_ret,
982 NULL, 0);
983 }
984
985 /**
986 * ice_vc_cfg_promiscuous_mode_msg
987 * @vf: pointer to the VF info
988 * @msg: pointer to the msg buffer
989 *
990 * called from the VF to configure VF VSIs promiscuous mode
991 */
ice_vc_cfg_promiscuous_mode_msg(struct ice_vf * vf,u8 * msg)992 static int ice_vc_cfg_promiscuous_mode_msg(struct ice_vf *vf, u8 *msg)
993 {
994 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
995 bool rm_promisc, alluni = false, allmulti = false;
996 struct virtchnl_promisc_info *info =
997 (struct virtchnl_promisc_info *)msg;
998 struct ice_vsi_vlan_ops *vlan_ops;
999 int mcast_err = 0, ucast_err = 0;
1000 struct ice_pf *pf = vf->pf;
1001 struct ice_vsi *vsi;
1002 u8 mcast_m, ucast_m;
1003 struct device *dev;
1004 int ret = 0;
1005
1006 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
1007 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1008 goto error_param;
1009 }
1010
1011 if (!ice_vc_isvalid_vsi_id(vf, info->vsi_id)) {
1012 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1013 goto error_param;
1014 }
1015
1016 vsi = ice_get_vf_vsi(vf);
1017 if (!vsi) {
1018 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1019 goto error_param;
1020 }
1021
1022 dev = ice_pf_to_dev(pf);
1023 if (!ice_is_vf_trusted(vf)) {
1024 dev_err(dev, "Unprivileged VF %d is attempting to configure promiscuous mode\n",
1025 vf->vf_id);
1026 /* Leave v_ret alone, lie to the VF on purpose. */
1027 goto error_param;
1028 }
1029
1030 if (info->flags & FLAG_VF_UNICAST_PROMISC)
1031 alluni = true;
1032
1033 if (info->flags & FLAG_VF_MULTICAST_PROMISC)
1034 allmulti = true;
1035
1036 rm_promisc = !allmulti && !alluni;
1037
1038 vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);
1039 if (rm_promisc)
1040 ret = vlan_ops->ena_rx_filtering(vsi);
1041 else
1042 ret = vlan_ops->dis_rx_filtering(vsi);
1043 if (ret) {
1044 dev_err(dev, "Failed to configure VLAN pruning in promiscuous mode\n");
1045 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1046 goto error_param;
1047 }
1048
1049 ice_vf_get_promisc_masks(vf, vsi, &ucast_m, &mcast_m);
1050
1051 if (!test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags)) {
1052 if (alluni) {
1053 /* in this case we're turning on promiscuous mode */
1054 ret = ice_set_dflt_vsi(vsi);
1055 } else {
1056 /* in this case we're turning off promiscuous mode */
1057 if (ice_is_dflt_vsi_in_use(vsi->port_info))
1058 ret = ice_clear_dflt_vsi(vsi);
1059 }
1060
1061 /* in this case we're turning on/off only
1062 * allmulticast
1063 */
1064 if (allmulti)
1065 mcast_err = ice_vf_set_vsi_promisc(vf, vsi, mcast_m);
1066 else
1067 mcast_err = ice_vf_clear_vsi_promisc(vf, vsi, mcast_m);
1068
1069 if (ret) {
1070 dev_err(dev, "Turning on/off promiscuous mode for VF %d failed, error: %d\n",
1071 vf->vf_id, ret);
1072 v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
1073 goto error_param;
1074 }
1075 } else {
1076 if (alluni)
1077 ucast_err = ice_vf_set_vsi_promisc(vf, vsi, ucast_m);
1078 else
1079 ucast_err = ice_vf_clear_vsi_promisc(vf, vsi, ucast_m);
1080
1081 if (allmulti)
1082 mcast_err = ice_vf_set_vsi_promisc(vf, vsi, mcast_m);
1083 else
1084 mcast_err = ice_vf_clear_vsi_promisc(vf, vsi, mcast_m);
1085
1086 if (ucast_err || mcast_err)
1087 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1088 }
1089
1090 if (!mcast_err) {
1091 if (allmulti &&
1092 !test_and_set_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states))
1093 dev_info(dev, "VF %u successfully set multicast promiscuous mode\n",
1094 vf->vf_id);
1095 else if (!allmulti &&
1096 test_and_clear_bit(ICE_VF_STATE_MC_PROMISC,
1097 vf->vf_states))
1098 dev_info(dev, "VF %u successfully unset multicast promiscuous mode\n",
1099 vf->vf_id);
1100 } else {
1101 dev_err(dev, "Error while modifying multicast promiscuous mode for VF %u, error: %d\n",
1102 vf->vf_id, mcast_err);
1103 }
1104
1105 if (!ucast_err) {
1106 if (alluni &&
1107 !test_and_set_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states))
1108 dev_info(dev, "VF %u successfully set unicast promiscuous mode\n",
1109 vf->vf_id);
1110 else if (!alluni &&
1111 test_and_clear_bit(ICE_VF_STATE_UC_PROMISC,
1112 vf->vf_states))
1113 dev_info(dev, "VF %u successfully unset unicast promiscuous mode\n",
1114 vf->vf_id);
1115 } else {
1116 dev_err(dev, "Error while modifying unicast promiscuous mode for VF %u, error: %d\n",
1117 vf->vf_id, ucast_err);
1118 }
1119
1120 error_param:
1121 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1122 v_ret, NULL, 0);
1123 }
1124
1125 /**
1126 * ice_vc_get_stats_msg
1127 * @vf: pointer to the VF info
1128 * @msg: pointer to the msg buffer
1129 *
1130 * called from the VF to get VSI stats
1131 */
ice_vc_get_stats_msg(struct ice_vf * vf,u8 * msg)1132 static int ice_vc_get_stats_msg(struct ice_vf *vf, u8 *msg)
1133 {
1134 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1135 struct virtchnl_queue_select *vqs =
1136 (struct virtchnl_queue_select *)msg;
1137 struct ice_eth_stats stats = { 0 };
1138 struct ice_vsi *vsi;
1139
1140 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
1141 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1142 goto error_param;
1143 }
1144
1145 if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1146 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1147 goto error_param;
1148 }
1149
1150 vsi = ice_get_vf_vsi(vf);
1151 if (!vsi) {
1152 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1153 goto error_param;
1154 }
1155
1156 ice_update_eth_stats(vsi);
1157
1158 stats = vsi->eth_stats;
1159
1160 error_param:
1161 /* send the response to the VF */
1162 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, v_ret,
1163 (u8 *)&stats, sizeof(stats));
1164 }
1165
1166 /**
1167 * ice_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTCHNL
1168 * @vqs: virtchnl_queue_select structure containing bitmaps to validate
1169 *
1170 * Return true on successful validation, else false
1171 */
ice_vc_validate_vqs_bitmaps(struct virtchnl_queue_select * vqs)1172 static bool ice_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
1173 {
1174 if ((!vqs->rx_queues && !vqs->tx_queues) ||
1175 vqs->rx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF) ||
1176 vqs->tx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF))
1177 return false;
1178
1179 return true;
1180 }
1181
1182 /**
1183 * ice_vf_ena_txq_interrupt - enable Tx queue interrupt via QINT_TQCTL
1184 * @vsi: VSI of the VF to configure
1185 * @q_idx: VF queue index used to determine the queue in the PF's space
1186 */
ice_vf_ena_txq_interrupt(struct ice_vsi * vsi,u32 q_idx)1187 static void ice_vf_ena_txq_interrupt(struct ice_vsi *vsi, u32 q_idx)
1188 {
1189 struct ice_hw *hw = &vsi->back->hw;
1190 u32 pfq = vsi->txq_map[q_idx];
1191 u32 reg;
1192
1193 reg = rd32(hw, QINT_TQCTL(pfq));
1194
1195 /* MSI-X index 0 in the VF's space is always for the OICR, which means
1196 * this is most likely a poll mode VF driver, so don't enable an
1197 * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP
1198 */
1199 if (!(reg & QINT_TQCTL_MSIX_INDX_M))
1200 return;
1201
1202 wr32(hw, QINT_TQCTL(pfq), reg | QINT_TQCTL_CAUSE_ENA_M);
1203 }
1204
1205 /**
1206 * ice_vf_ena_rxq_interrupt - enable Tx queue interrupt via QINT_RQCTL
1207 * @vsi: VSI of the VF to configure
1208 * @q_idx: VF queue index used to determine the queue in the PF's space
1209 */
ice_vf_ena_rxq_interrupt(struct ice_vsi * vsi,u32 q_idx)1210 static void ice_vf_ena_rxq_interrupt(struct ice_vsi *vsi, u32 q_idx)
1211 {
1212 struct ice_hw *hw = &vsi->back->hw;
1213 u32 pfq = vsi->rxq_map[q_idx];
1214 u32 reg;
1215
1216 reg = rd32(hw, QINT_RQCTL(pfq));
1217
1218 /* MSI-X index 0 in the VF's space is always for the OICR, which means
1219 * this is most likely a poll mode VF driver, so don't enable an
1220 * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP
1221 */
1222 if (!(reg & QINT_RQCTL_MSIX_INDX_M))
1223 return;
1224
1225 wr32(hw, QINT_RQCTL(pfq), reg | QINT_RQCTL_CAUSE_ENA_M);
1226 }
1227
1228 /**
1229 * ice_vc_ena_qs_msg
1230 * @vf: pointer to the VF info
1231 * @msg: pointer to the msg buffer
1232 *
1233 * called from the VF to enable all or specific queue(s)
1234 */
ice_vc_ena_qs_msg(struct ice_vf * vf,u8 * msg)1235 static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg)
1236 {
1237 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1238 struct virtchnl_queue_select *vqs =
1239 (struct virtchnl_queue_select *)msg;
1240 struct ice_vsi *vsi;
1241 unsigned long q_map;
1242 u16 vf_q_id;
1243
1244 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
1245 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1246 goto error_param;
1247 }
1248
1249 if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1250 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1251 goto error_param;
1252 }
1253
1254 if (!ice_vc_validate_vqs_bitmaps(vqs)) {
1255 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1256 goto error_param;
1257 }
1258
1259 vsi = ice_get_vf_vsi(vf);
1260 if (!vsi) {
1261 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1262 goto error_param;
1263 }
1264
1265 /* Enable only Rx rings, Tx rings were enabled by the FW when the
1266 * Tx queue group list was configured and the context bits were
1267 * programmed using ice_vsi_cfg_txqs
1268 */
1269 q_map = vqs->rx_queues;
1270 for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
1271 if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
1272 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1273 goto error_param;
1274 }
1275
1276 /* Skip queue if enabled */
1277 if (test_bit(vf_q_id, vf->rxq_ena))
1278 continue;
1279
1280 if (ice_vsi_ctrl_one_rx_ring(vsi, true, vf_q_id, true)) {
1281 dev_err(ice_pf_to_dev(vsi->back), "Failed to enable Rx ring %d on VSI %d\n",
1282 vf_q_id, vsi->vsi_num);
1283 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1284 goto error_param;
1285 }
1286
1287 ice_vf_ena_rxq_interrupt(vsi, vf_q_id);
1288 set_bit(vf_q_id, vf->rxq_ena);
1289 }
1290
1291 q_map = vqs->tx_queues;
1292 for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
1293 if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
1294 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1295 goto error_param;
1296 }
1297
1298 /* Skip queue if enabled */
1299 if (test_bit(vf_q_id, vf->txq_ena))
1300 continue;
1301
1302 ice_vf_ena_txq_interrupt(vsi, vf_q_id);
1303 set_bit(vf_q_id, vf->txq_ena);
1304 }
1305
1306 /* Set flag to indicate that queues are enabled */
1307 if (v_ret == VIRTCHNL_STATUS_SUCCESS)
1308 set_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);
1309
1310 error_param:
1311 /* send the response to the VF */
1312 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, v_ret,
1313 NULL, 0);
1314 }
1315
1316 /**
1317 * ice_vf_vsi_dis_single_txq - disable a single Tx queue
1318 * @vf: VF to disable queue for
1319 * @vsi: VSI for the VF
1320 * @q_id: VF relative (0-based) queue ID
1321 *
1322 * Attempt to disable the Tx queue passed in. If the Tx queue was successfully
1323 * disabled then clear q_id bit in the enabled queues bitmap and return
1324 * success. Otherwise return error.
1325 */
1326 static int
ice_vf_vsi_dis_single_txq(struct ice_vf * vf,struct ice_vsi * vsi,u16 q_id)1327 ice_vf_vsi_dis_single_txq(struct ice_vf *vf, struct ice_vsi *vsi, u16 q_id)
1328 {
1329 struct ice_txq_meta txq_meta = { 0 };
1330 struct ice_tx_ring *ring;
1331 int err;
1332
1333 if (!test_bit(q_id, vf->txq_ena))
1334 dev_dbg(ice_pf_to_dev(vsi->back), "Queue %u on VSI %u is not enabled, but stopping it anyway\n",
1335 q_id, vsi->vsi_num);
1336
1337 ring = vsi->tx_rings[q_id];
1338 if (!ring)
1339 return -EINVAL;
1340
1341 ice_fill_txq_meta(vsi, ring, &txq_meta);
1342
1343 err = ice_vsi_stop_tx_ring(vsi, ICE_NO_RESET, vf->vf_id, ring, &txq_meta);
1344 if (err) {
1345 dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Tx ring %d on VSI %d\n",
1346 q_id, vsi->vsi_num);
1347 return err;
1348 }
1349
1350 /* Clear enabled queues flag */
1351 clear_bit(q_id, vf->txq_ena);
1352
1353 return 0;
1354 }
1355
1356 /**
1357 * ice_vc_dis_qs_msg
1358 * @vf: pointer to the VF info
1359 * @msg: pointer to the msg buffer
1360 *
1361 * called from the VF to disable all or specific queue(s)
1362 */
ice_vc_dis_qs_msg(struct ice_vf * vf,u8 * msg)1363 static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg)
1364 {
1365 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1366 struct virtchnl_queue_select *vqs =
1367 (struct virtchnl_queue_select *)msg;
1368 struct ice_vsi *vsi;
1369 unsigned long q_map;
1370 u16 vf_q_id;
1371
1372 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) &&
1373 !test_bit(ICE_VF_STATE_QS_ENA, vf->vf_states)) {
1374 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1375 goto error_param;
1376 }
1377
1378 if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1379 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1380 goto error_param;
1381 }
1382
1383 if (!ice_vc_validate_vqs_bitmaps(vqs)) {
1384 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1385 goto error_param;
1386 }
1387
1388 vsi = ice_get_vf_vsi(vf);
1389 if (!vsi) {
1390 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1391 goto error_param;
1392 }
1393
1394 if (vqs->tx_queues) {
1395 q_map = vqs->tx_queues;
1396
1397 for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
1398 if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
1399 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1400 goto error_param;
1401 }
1402
1403 if (ice_vf_vsi_dis_single_txq(vf, vsi, vf_q_id)) {
1404 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1405 goto error_param;
1406 }
1407 }
1408 }
1409
1410 q_map = vqs->rx_queues;
1411 /* speed up Rx queue disable by batching them if possible */
1412 if (q_map &&
1413 bitmap_equal(&q_map, vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF)) {
1414 if (ice_vsi_stop_all_rx_rings(vsi)) {
1415 dev_err(ice_pf_to_dev(vsi->back), "Failed to stop all Rx rings on VSI %d\n",
1416 vsi->vsi_num);
1417 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1418 goto error_param;
1419 }
1420
1421 bitmap_zero(vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF);
1422 } else if (q_map) {
1423 for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
1424 if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
1425 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1426 goto error_param;
1427 }
1428
1429 /* Skip queue if not enabled */
1430 if (!test_bit(vf_q_id, vf->rxq_ena))
1431 continue;
1432
1433 if (ice_vsi_ctrl_one_rx_ring(vsi, false, vf_q_id,
1434 true)) {
1435 dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Rx ring %d on VSI %d\n",
1436 vf_q_id, vsi->vsi_num);
1437 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1438 goto error_param;
1439 }
1440
1441 /* Clear enabled queues flag */
1442 clear_bit(vf_q_id, vf->rxq_ena);
1443 }
1444 }
1445
1446 /* Clear enabled queues flag */
1447 if (v_ret == VIRTCHNL_STATUS_SUCCESS && ice_vf_has_no_qs_ena(vf))
1448 clear_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);
1449
1450 error_param:
1451 /* send the response to the VF */
1452 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, v_ret,
1453 NULL, 0);
1454 }
1455
1456 /**
1457 * ice_cfg_interrupt
1458 * @vf: pointer to the VF info
1459 * @vsi: the VSI being configured
1460 * @vector_id: vector ID
1461 * @map: vector map for mapping vectors to queues
1462 * @q_vector: structure for interrupt vector
1463 * configure the IRQ to queue map
1464 */
1465 static int
ice_cfg_interrupt(struct ice_vf * vf,struct ice_vsi * vsi,u16 vector_id,struct virtchnl_vector_map * map,struct ice_q_vector * q_vector)1466 ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi, u16 vector_id,
1467 struct virtchnl_vector_map *map,
1468 struct ice_q_vector *q_vector)
1469 {
1470 u16 vsi_q_id, vsi_q_id_idx;
1471 unsigned long qmap;
1472
1473 q_vector->num_ring_rx = 0;
1474 q_vector->num_ring_tx = 0;
1475
1476 qmap = map->rxq_map;
1477 for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
1478 vsi_q_id = vsi_q_id_idx;
1479
1480 if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
1481 return VIRTCHNL_STATUS_ERR_PARAM;
1482
1483 q_vector->num_ring_rx++;
1484 q_vector->rx.itr_idx = map->rxitr_idx;
1485 vsi->rx_rings[vsi_q_id]->q_vector = q_vector;
1486 ice_cfg_rxq_interrupt(vsi, vsi_q_id, vector_id,
1487 q_vector->rx.itr_idx);
1488 }
1489
1490 qmap = map->txq_map;
1491 for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
1492 vsi_q_id = vsi_q_id_idx;
1493
1494 if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
1495 return VIRTCHNL_STATUS_ERR_PARAM;
1496
1497 q_vector->num_ring_tx++;
1498 q_vector->tx.itr_idx = map->txitr_idx;
1499 vsi->tx_rings[vsi_q_id]->q_vector = q_vector;
1500 ice_cfg_txq_interrupt(vsi, vsi_q_id, vector_id,
1501 q_vector->tx.itr_idx);
1502 }
1503
1504 return VIRTCHNL_STATUS_SUCCESS;
1505 }
1506
1507 /**
1508 * ice_vc_cfg_irq_map_msg
1509 * @vf: pointer to the VF info
1510 * @msg: pointer to the msg buffer
1511 *
1512 * called from the VF to configure the IRQ to queue map
1513 */
ice_vc_cfg_irq_map_msg(struct ice_vf * vf,u8 * msg)1514 static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg)
1515 {
1516 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1517 u16 num_q_vectors_mapped, vsi_id, vector_id;
1518 struct virtchnl_irq_map_info *irqmap_info;
1519 struct virtchnl_vector_map *map;
1520 struct ice_pf *pf = vf->pf;
1521 struct ice_vsi *vsi;
1522 int i;
1523
1524 irqmap_info = (struct virtchnl_irq_map_info *)msg;
1525 num_q_vectors_mapped = irqmap_info->num_vectors;
1526
1527 /* Check to make sure number of VF vectors mapped is not greater than
1528 * number of VF vectors originally allocated, and check that
1529 * there is actually at least a single VF queue vector mapped
1530 */
1531 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
1532 pf->vfs.num_msix_per < num_q_vectors_mapped ||
1533 !num_q_vectors_mapped) {
1534 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1535 goto error_param;
1536 }
1537
1538 vsi = ice_get_vf_vsi(vf);
1539 if (!vsi) {
1540 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1541 goto error_param;
1542 }
1543
1544 for (i = 0; i < num_q_vectors_mapped; i++) {
1545 struct ice_q_vector *q_vector;
1546
1547 map = &irqmap_info->vecmap[i];
1548
1549 vector_id = map->vector_id;
1550 vsi_id = map->vsi_id;
1551 /* vector_id is always 0-based for each VF, and can never be
1552 * larger than or equal to the max allowed interrupts per VF
1553 */
1554 if (!(vector_id < pf->vfs.num_msix_per) ||
1555 !ice_vc_isvalid_vsi_id(vf, vsi_id) ||
1556 (!vector_id && (map->rxq_map || map->txq_map))) {
1557 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1558 goto error_param;
1559 }
1560
1561 /* No need to map VF miscellaneous or rogue vector */
1562 if (!vector_id)
1563 continue;
1564
1565 /* Subtract non queue vector from vector_id passed by VF
1566 * to get actual number of VSI queue vector array index
1567 */
1568 q_vector = vsi->q_vectors[vector_id - ICE_NONQ_VECS_VF];
1569 if (!q_vector) {
1570 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1571 goto error_param;
1572 }
1573
1574 /* lookout for the invalid queue index */
1575 v_ret = (enum virtchnl_status_code)
1576 ice_cfg_interrupt(vf, vsi, vector_id, map, q_vector);
1577 if (v_ret)
1578 goto error_param;
1579 }
1580
1581 error_param:
1582 /* send the response to the VF */
1583 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, v_ret,
1584 NULL, 0);
1585 }
1586
1587 /**
1588 * ice_vc_cfg_qs_msg
1589 * @vf: pointer to the VF info
1590 * @msg: pointer to the msg buffer
1591 *
1592 * called from the VF to configure the Rx/Tx queues
1593 */
ice_vc_cfg_qs_msg(struct ice_vf * vf,u8 * msg)1594 static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
1595 {
1596 struct virtchnl_vsi_queue_config_info *qci =
1597 (struct virtchnl_vsi_queue_config_info *)msg;
1598 struct virtchnl_queue_pair_info *qpi;
1599 struct ice_pf *pf = vf->pf;
1600 struct ice_vsi *vsi;
1601 int i = -1, q_idx;
1602
1603 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
1604 goto error_param;
1605
1606 if (!ice_vc_isvalid_vsi_id(vf, qci->vsi_id))
1607 goto error_param;
1608
1609 vsi = ice_get_vf_vsi(vf);
1610 if (!vsi)
1611 goto error_param;
1612
1613 if (qci->num_queue_pairs > ICE_MAX_RSS_QS_PER_VF ||
1614 qci->num_queue_pairs > min_t(u16, vsi->alloc_txq, vsi->alloc_rxq)) {
1615 dev_err(ice_pf_to_dev(pf), "VF-%d requesting more than supported number of queues: %d\n",
1616 vf->vf_id, min_t(u16, vsi->alloc_txq, vsi->alloc_rxq));
1617 goto error_param;
1618 }
1619
1620 for (i = 0; i < qci->num_queue_pairs; i++) {
1621 qpi = &qci->qpair[i];
1622 if (qpi->txq.vsi_id != qci->vsi_id ||
1623 qpi->rxq.vsi_id != qci->vsi_id ||
1624 qpi->rxq.queue_id != qpi->txq.queue_id ||
1625 qpi->txq.headwb_enabled ||
1626 !ice_vc_isvalid_ring_len(qpi->txq.ring_len) ||
1627 !ice_vc_isvalid_ring_len(qpi->rxq.ring_len) ||
1628 !ice_vc_isvalid_q_id(vf, qci->vsi_id, qpi->txq.queue_id)) {
1629 goto error_param;
1630 }
1631
1632 q_idx = qpi->rxq.queue_id;
1633
1634 /* make sure selected "q_idx" is in valid range of queues
1635 * for selected "vsi"
1636 */
1637 if (q_idx >= vsi->alloc_txq || q_idx >= vsi->alloc_rxq) {
1638 goto error_param;
1639 }
1640
1641 /* copy Tx queue info from VF into VSI */
1642 if (qpi->txq.ring_len > 0) {
1643 vsi->tx_rings[i]->dma = qpi->txq.dma_ring_addr;
1644 vsi->tx_rings[i]->count = qpi->txq.ring_len;
1645
1646 /* Disable any existing queue first */
1647 if (ice_vf_vsi_dis_single_txq(vf, vsi, q_idx))
1648 goto error_param;
1649
1650 /* Configure a queue with the requested settings */
1651 if (ice_vsi_cfg_single_txq(vsi, vsi->tx_rings, q_idx)) {
1652 dev_warn(ice_pf_to_dev(pf), "VF-%d failed to configure TX queue %d\n",
1653 vf->vf_id, i);
1654 goto error_param;
1655 }
1656 }
1657
1658 /* copy Rx queue info from VF into VSI */
1659 if (qpi->rxq.ring_len > 0) {
1660 u16 max_frame_size = ice_vc_get_max_frame_size(vf);
1661
1662 vsi->rx_rings[i]->dma = qpi->rxq.dma_ring_addr;
1663 vsi->rx_rings[i]->count = qpi->rxq.ring_len;
1664
1665 if (qpi->rxq.databuffer_size != 0 &&
1666 (qpi->rxq.databuffer_size > ((16 * 1024) - 128) ||
1667 qpi->rxq.databuffer_size < 1024))
1668 goto error_param;
1669 vsi->rx_buf_len = qpi->rxq.databuffer_size;
1670 vsi->rx_rings[i]->rx_buf_len = vsi->rx_buf_len;
1671 if (qpi->rxq.max_pkt_size > max_frame_size ||
1672 qpi->rxq.max_pkt_size < 64)
1673 goto error_param;
1674
1675 vsi->max_frame = qpi->rxq.max_pkt_size;
1676 /* add space for the port VLAN since the VF driver is
1677 * not expected to account for it in the MTU
1678 * calculation
1679 */
1680 if (ice_vf_is_port_vlan_ena(vf))
1681 vsi->max_frame += VLAN_HLEN;
1682
1683 if (ice_vsi_cfg_single_rxq(vsi, q_idx)) {
1684 dev_warn(ice_pf_to_dev(pf), "VF-%d failed to configure RX queue %d\n",
1685 vf->vf_id, i);
1686 goto error_param;
1687 }
1688 }
1689 }
1690
1691 /* send the response to the VF */
1692 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1693 VIRTCHNL_STATUS_SUCCESS, NULL, 0);
1694 error_param:
1695 /* disable whatever we can */
1696 for (; i >= 0; i--) {
1697 if (ice_vsi_ctrl_one_rx_ring(vsi, false, i, true))
1698 dev_err(ice_pf_to_dev(pf), "VF-%d could not disable RX queue %d\n",
1699 vf->vf_id, i);
1700 if (ice_vf_vsi_dis_single_txq(vf, vsi, i))
1701 dev_err(ice_pf_to_dev(pf), "VF-%d could not disable TX queue %d\n",
1702 vf->vf_id, i);
1703 }
1704
1705 /* send the response to the VF */
1706 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1707 VIRTCHNL_STATUS_ERR_PARAM, NULL, 0);
1708 }
1709
1710 /**
1711 * ice_can_vf_change_mac
1712 * @vf: pointer to the VF info
1713 *
1714 * Return true if the VF is allowed to change its MAC filters, false otherwise
1715 */
ice_can_vf_change_mac(struct ice_vf * vf)1716 static bool ice_can_vf_change_mac(struct ice_vf *vf)
1717 {
1718 /* If the VF MAC address has been set administratively (via the
1719 * ndo_set_vf_mac command), then deny permission to the VF to
1720 * add/delete unicast MAC addresses, unless the VF is trusted
1721 */
1722 if (vf->pf_set_mac && !ice_is_vf_trusted(vf))
1723 return false;
1724
1725 return true;
1726 }
1727
1728 /**
1729 * ice_vc_ether_addr_type - get type of virtchnl_ether_addr
1730 * @vc_ether_addr: used to extract the type
1731 */
1732 static u8
ice_vc_ether_addr_type(struct virtchnl_ether_addr * vc_ether_addr)1733 ice_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr)
1734 {
1735 return (vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK);
1736 }
1737
1738 /**
1739 * ice_is_vc_addr_legacy - check if the MAC address is from an older VF
1740 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
1741 */
1742 static bool
ice_is_vc_addr_legacy(struct virtchnl_ether_addr * vc_ether_addr)1743 ice_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr)
1744 {
1745 u8 type = ice_vc_ether_addr_type(vc_ether_addr);
1746
1747 return (type == VIRTCHNL_ETHER_ADDR_LEGACY);
1748 }
1749
1750 /**
1751 * ice_is_vc_addr_primary - check if the MAC address is the VF's primary MAC
1752 * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
1753 *
1754 * This function should only be called when the MAC address in
1755 * virtchnl_ether_addr is a valid unicast MAC
1756 */
1757 static bool
ice_is_vc_addr_primary(struct virtchnl_ether_addr __maybe_unused * vc_ether_addr)1758 ice_is_vc_addr_primary(struct virtchnl_ether_addr __maybe_unused *vc_ether_addr)
1759 {
1760 u8 type = ice_vc_ether_addr_type(vc_ether_addr);
1761
1762 return (type == VIRTCHNL_ETHER_ADDR_PRIMARY);
1763 }
1764
1765 /**
1766 * ice_vfhw_mac_add - update the VF's cached hardware MAC if allowed
1767 * @vf: VF to update
1768 * @vc_ether_addr: structure from VIRTCHNL with MAC to add
1769 */
1770 static void
ice_vfhw_mac_add(struct ice_vf * vf,struct virtchnl_ether_addr * vc_ether_addr)1771 ice_vfhw_mac_add(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
1772 {
1773 u8 *mac_addr = vc_ether_addr->addr;
1774
1775 if (!is_valid_ether_addr(mac_addr))
1776 return;
1777
1778 /* only allow legacy VF drivers to set the device and hardware MAC if it
1779 * is zero and allow new VF drivers to set the hardware MAC if the type
1780 * was correctly specified over VIRTCHNL
1781 */
1782 if ((ice_is_vc_addr_legacy(vc_ether_addr) &&
1783 is_zero_ether_addr(vf->hw_lan_addr.addr)) ||
1784 ice_is_vc_addr_primary(vc_ether_addr)) {
1785 ether_addr_copy(vf->dev_lan_addr.addr, mac_addr);
1786 ether_addr_copy(vf->hw_lan_addr.addr, mac_addr);
1787 }
1788
1789 /* hardware and device MACs are already set, but its possible that the
1790 * VF driver sent the VIRTCHNL_OP_ADD_ETH_ADDR message before the
1791 * VIRTCHNL_OP_DEL_ETH_ADDR when trying to update its MAC, so save it
1792 * away for the legacy VF driver case as it will be updated in the
1793 * delete flow for this case
1794 */
1795 if (ice_is_vc_addr_legacy(vc_ether_addr)) {
1796 ether_addr_copy(vf->legacy_last_added_umac.addr,
1797 mac_addr);
1798 vf->legacy_last_added_umac.time_modified = jiffies;
1799 }
1800 }
1801
1802 /**
1803 * ice_vc_add_mac_addr - attempt to add the MAC address passed in
1804 * @vf: pointer to the VF info
1805 * @vsi: pointer to the VF's VSI
1806 * @vc_ether_addr: VIRTCHNL MAC address structure used to add MAC
1807 */
1808 static int
ice_vc_add_mac_addr(struct ice_vf * vf,struct ice_vsi * vsi,struct virtchnl_ether_addr * vc_ether_addr)1809 ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi,
1810 struct virtchnl_ether_addr *vc_ether_addr)
1811 {
1812 struct device *dev = ice_pf_to_dev(vf->pf);
1813 u8 *mac_addr = vc_ether_addr->addr;
1814 int ret;
1815
1816 /* device MAC already added */
1817 if (ether_addr_equal(mac_addr, vf->dev_lan_addr.addr))
1818 return 0;
1819
1820 if (is_unicast_ether_addr(mac_addr) && !ice_can_vf_change_mac(vf)) {
1821 dev_err(dev, "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
1822 return -EPERM;
1823 }
1824
1825 ret = ice_fltr_add_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
1826 if (ret == -EEXIST) {
1827 dev_dbg(dev, "MAC %pM already exists for VF %d\n", mac_addr,
1828 vf->vf_id);
1829 /* don't return since we might need to update
1830 * the primary MAC in ice_vfhw_mac_add() below
1831 */
1832 } else if (ret) {
1833 dev_err(dev, "Failed to add MAC %pM for VF %d\n, error %d\n",
1834 mac_addr, vf->vf_id, ret);
1835 return ret;
1836 } else {
1837 vf->num_mac++;
1838 }
1839
1840 ice_vfhw_mac_add(vf, vc_ether_addr);
1841
1842 return ret;
1843 }
1844
1845 /**
1846 * ice_is_legacy_umac_expired - check if last added legacy unicast MAC expired
1847 * @last_added_umac: structure used to check expiration
1848 */
ice_is_legacy_umac_expired(struct ice_time_mac * last_added_umac)1849 static bool ice_is_legacy_umac_expired(struct ice_time_mac *last_added_umac)
1850 {
1851 #define ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME msecs_to_jiffies(3000)
1852 return time_is_before_jiffies(last_added_umac->time_modified +
1853 ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME);
1854 }
1855
1856 /**
1857 * ice_update_legacy_cached_mac - update cached hardware MAC for legacy VF
1858 * @vf: VF to update
1859 * @vc_ether_addr: structure from VIRTCHNL with MAC to check
1860 *
1861 * only update cached hardware MAC for legacy VF drivers on delete
1862 * because we cannot guarantee order/type of MAC from the VF driver
1863 */
1864 static void
ice_update_legacy_cached_mac(struct ice_vf * vf,struct virtchnl_ether_addr * vc_ether_addr)1865 ice_update_legacy_cached_mac(struct ice_vf *vf,
1866 struct virtchnl_ether_addr *vc_ether_addr)
1867 {
1868 if (!ice_is_vc_addr_legacy(vc_ether_addr) ||
1869 ice_is_legacy_umac_expired(&vf->legacy_last_added_umac))
1870 return;
1871
1872 ether_addr_copy(vf->dev_lan_addr.addr, vf->legacy_last_added_umac.addr);
1873 ether_addr_copy(vf->hw_lan_addr.addr, vf->legacy_last_added_umac.addr);
1874 }
1875
1876 /**
1877 * ice_vfhw_mac_del - update the VF's cached hardware MAC if allowed
1878 * @vf: VF to update
1879 * @vc_ether_addr: structure from VIRTCHNL with MAC to delete
1880 */
1881 static void
ice_vfhw_mac_del(struct ice_vf * vf,struct virtchnl_ether_addr * vc_ether_addr)1882 ice_vfhw_mac_del(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
1883 {
1884 u8 *mac_addr = vc_ether_addr->addr;
1885
1886 if (!is_valid_ether_addr(mac_addr) ||
1887 !ether_addr_equal(vf->dev_lan_addr.addr, mac_addr))
1888 return;
1889
1890 /* allow the device MAC to be repopulated in the add flow and don't
1891 * clear the hardware MAC (i.e. hw_lan_addr.addr) here as that is meant
1892 * to be persistent on VM reboot and across driver unload/load, which
1893 * won't work if we clear the hardware MAC here
1894 */
1895 eth_zero_addr(vf->dev_lan_addr.addr);
1896
1897 ice_update_legacy_cached_mac(vf, vc_ether_addr);
1898 }
1899
1900 /**
1901 * ice_vc_del_mac_addr - attempt to delete the MAC address passed in
1902 * @vf: pointer to the VF info
1903 * @vsi: pointer to the VF's VSI
1904 * @vc_ether_addr: VIRTCHNL MAC address structure used to delete MAC
1905 */
1906 static int
ice_vc_del_mac_addr(struct ice_vf * vf,struct ice_vsi * vsi,struct virtchnl_ether_addr * vc_ether_addr)1907 ice_vc_del_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi,
1908 struct virtchnl_ether_addr *vc_ether_addr)
1909 {
1910 struct device *dev = ice_pf_to_dev(vf->pf);
1911 u8 *mac_addr = vc_ether_addr->addr;
1912 int status;
1913
1914 if (!ice_can_vf_change_mac(vf) &&
1915 ether_addr_equal(vf->dev_lan_addr.addr, mac_addr))
1916 return 0;
1917
1918 status = ice_fltr_remove_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
1919 if (status == -ENOENT) {
1920 dev_err(dev, "MAC %pM does not exist for VF %d\n", mac_addr,
1921 vf->vf_id);
1922 return -ENOENT;
1923 } else if (status) {
1924 dev_err(dev, "Failed to delete MAC %pM for VF %d, error %d\n",
1925 mac_addr, vf->vf_id, status);
1926 return -EIO;
1927 }
1928
1929 ice_vfhw_mac_del(vf, vc_ether_addr);
1930
1931 vf->num_mac--;
1932
1933 return 0;
1934 }
1935
1936 /**
1937 * ice_vc_handle_mac_addr_msg
1938 * @vf: pointer to the VF info
1939 * @msg: pointer to the msg buffer
1940 * @set: true if MAC filters are being set, false otherwise
1941 *
1942 * add guest MAC address filter
1943 */
1944 static int
ice_vc_handle_mac_addr_msg(struct ice_vf * vf,u8 * msg,bool set)1945 ice_vc_handle_mac_addr_msg(struct ice_vf *vf, u8 *msg, bool set)
1946 {
1947 int (*ice_vc_cfg_mac)
1948 (struct ice_vf *vf, struct ice_vsi *vsi,
1949 struct virtchnl_ether_addr *virtchnl_ether_addr);
1950 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1951 struct virtchnl_ether_addr_list *al =
1952 (struct virtchnl_ether_addr_list *)msg;
1953 struct ice_pf *pf = vf->pf;
1954 enum virtchnl_ops vc_op;
1955 struct ice_vsi *vsi;
1956 int i;
1957
1958 if (set) {
1959 vc_op = VIRTCHNL_OP_ADD_ETH_ADDR;
1960 ice_vc_cfg_mac = ice_vc_add_mac_addr;
1961 } else {
1962 vc_op = VIRTCHNL_OP_DEL_ETH_ADDR;
1963 ice_vc_cfg_mac = ice_vc_del_mac_addr;
1964 }
1965
1966 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
1967 !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) {
1968 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1969 goto handle_mac_exit;
1970 }
1971
1972 /* If this VF is not privileged, then we can't add more than a
1973 * limited number of addresses. Check to make sure that the
1974 * additions do not push us over the limit.
1975 */
1976 if (set && !ice_is_vf_trusted(vf) &&
1977 (vf->num_mac + al->num_elements) > ICE_MAX_MACADDR_PER_VF) {
1978 dev_err(ice_pf_to_dev(pf), "Can't add more MAC addresses, because VF-%d is not trusted, switch the VF to trusted mode in order to add more functionalities\n",
1979 vf->vf_id);
1980 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1981 goto handle_mac_exit;
1982 }
1983
1984 vsi = ice_get_vf_vsi(vf);
1985 if (!vsi) {
1986 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1987 goto handle_mac_exit;
1988 }
1989
1990 for (i = 0; i < al->num_elements; i++) {
1991 u8 *mac_addr = al->list[i].addr;
1992 int result;
1993
1994 if (is_broadcast_ether_addr(mac_addr) ||
1995 is_zero_ether_addr(mac_addr))
1996 continue;
1997
1998 result = ice_vc_cfg_mac(vf, vsi, &al->list[i]);
1999 if (result == -EEXIST || result == -ENOENT) {
2000 continue;
2001 } else if (result) {
2002 v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
2003 goto handle_mac_exit;
2004 }
2005 }
2006
2007 handle_mac_exit:
2008 /* send the response to the VF */
2009 return ice_vc_send_msg_to_vf(vf, vc_op, v_ret, NULL, 0);
2010 }
2011
2012 /**
2013 * ice_vc_add_mac_addr_msg
2014 * @vf: pointer to the VF info
2015 * @msg: pointer to the msg buffer
2016 *
2017 * add guest MAC address filter
2018 */
ice_vc_add_mac_addr_msg(struct ice_vf * vf,u8 * msg)2019 static int ice_vc_add_mac_addr_msg(struct ice_vf *vf, u8 *msg)
2020 {
2021 return ice_vc_handle_mac_addr_msg(vf, msg, true);
2022 }
2023
2024 /**
2025 * ice_vc_del_mac_addr_msg
2026 * @vf: pointer to the VF info
2027 * @msg: pointer to the msg buffer
2028 *
2029 * remove guest MAC address filter
2030 */
ice_vc_del_mac_addr_msg(struct ice_vf * vf,u8 * msg)2031 static int ice_vc_del_mac_addr_msg(struct ice_vf *vf, u8 *msg)
2032 {
2033 return ice_vc_handle_mac_addr_msg(vf, msg, false);
2034 }
2035
2036 /**
2037 * ice_vc_request_qs_msg
2038 * @vf: pointer to the VF info
2039 * @msg: pointer to the msg buffer
2040 *
2041 * VFs get a default number of queues but can use this message to request a
2042 * different number. If the request is successful, PF will reset the VF and
2043 * return 0. If unsuccessful, PF will send message informing VF of number of
2044 * available queue pairs via virtchnl message response to VF.
2045 */
ice_vc_request_qs_msg(struct ice_vf * vf,u8 * msg)2046 static int ice_vc_request_qs_msg(struct ice_vf *vf, u8 *msg)
2047 {
2048 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2049 struct virtchnl_vf_res_request *vfres =
2050 (struct virtchnl_vf_res_request *)msg;
2051 u16 req_queues = vfres->num_queue_pairs;
2052 struct ice_pf *pf = vf->pf;
2053 u16 max_allowed_vf_queues;
2054 u16 tx_rx_queue_left;
2055 struct device *dev;
2056 u16 cur_queues;
2057
2058 dev = ice_pf_to_dev(pf);
2059 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2060 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2061 goto error_param;
2062 }
2063
2064 cur_queues = vf->num_vf_qs;
2065 tx_rx_queue_left = min_t(u16, ice_get_avail_txq_count(pf),
2066 ice_get_avail_rxq_count(pf));
2067 max_allowed_vf_queues = tx_rx_queue_left + cur_queues;
2068 if (!req_queues) {
2069 dev_err(dev, "VF %d tried to request 0 queues. Ignoring.\n",
2070 vf->vf_id);
2071 } else if (req_queues > ICE_MAX_RSS_QS_PER_VF) {
2072 dev_err(dev, "VF %d tried to request more than %d queues.\n",
2073 vf->vf_id, ICE_MAX_RSS_QS_PER_VF);
2074 vfres->num_queue_pairs = ICE_MAX_RSS_QS_PER_VF;
2075 } else if (req_queues > cur_queues &&
2076 req_queues - cur_queues > tx_rx_queue_left) {
2077 dev_warn(dev, "VF %d requested %u more queues, but only %u left.\n",
2078 vf->vf_id, req_queues - cur_queues, tx_rx_queue_left);
2079 vfres->num_queue_pairs = min_t(u16, max_allowed_vf_queues,
2080 ICE_MAX_RSS_QS_PER_VF);
2081 } else {
2082 /* request is successful, then reset VF */
2083 vf->num_req_qs = req_queues;
2084 ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
2085 dev_info(dev, "VF %d granted request of %u queues.\n",
2086 vf->vf_id, req_queues);
2087 return 0;
2088 }
2089
2090 error_param:
2091 /* send the response to the VF */
2092 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES,
2093 v_ret, (u8 *)vfres, sizeof(*vfres));
2094 }
2095
2096 /**
2097 * ice_vf_vlan_offload_ena - determine if capabilities support VLAN offloads
2098 * @caps: VF driver negotiated capabilities
2099 *
2100 * Return true if VIRTCHNL_VF_OFFLOAD_VLAN capability is set, else return false
2101 */
ice_vf_vlan_offload_ena(u32 caps)2102 static bool ice_vf_vlan_offload_ena(u32 caps)
2103 {
2104 return !!(caps & VIRTCHNL_VF_OFFLOAD_VLAN);
2105 }
2106
2107 /**
2108 * ice_is_vlan_promisc_allowed - check if VLAN promiscuous config is allowed
2109 * @vf: VF used to determine if VLAN promiscuous config is allowed
2110 */
ice_is_vlan_promisc_allowed(struct ice_vf * vf)2111 static bool ice_is_vlan_promisc_allowed(struct ice_vf *vf)
2112 {
2113 if ((test_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states) ||
2114 test_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states)) &&
2115 test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, vf->pf->flags))
2116 return true;
2117
2118 return false;
2119 }
2120
2121 /**
2122 * ice_vf_ena_vlan_promisc - Enable Tx/Rx VLAN promiscuous for the VLAN
2123 * @vsi: VF's VSI used to enable VLAN promiscuous mode
2124 * @vlan: VLAN used to enable VLAN promiscuous
2125 *
2126 * This function should only be called if VLAN promiscuous mode is allowed,
2127 * which can be determined via ice_is_vlan_promisc_allowed().
2128 */
ice_vf_ena_vlan_promisc(struct ice_vsi * vsi,struct ice_vlan * vlan)2129 static int ice_vf_ena_vlan_promisc(struct ice_vsi *vsi, struct ice_vlan *vlan)
2130 {
2131 u8 promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX;
2132 int status;
2133
2134 status = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx, promisc_m,
2135 vlan->vid);
2136 if (status && status != -EEXIST)
2137 return status;
2138
2139 return 0;
2140 }
2141
2142 /**
2143 * ice_vf_dis_vlan_promisc - Disable Tx/Rx VLAN promiscuous for the VLAN
2144 * @vsi: VF's VSI used to disable VLAN promiscuous mode for
2145 * @vlan: VLAN used to disable VLAN promiscuous
2146 *
2147 * This function should only be called if VLAN promiscuous mode is allowed,
2148 * which can be determined via ice_is_vlan_promisc_allowed().
2149 */
ice_vf_dis_vlan_promisc(struct ice_vsi * vsi,struct ice_vlan * vlan)2150 static int ice_vf_dis_vlan_promisc(struct ice_vsi *vsi, struct ice_vlan *vlan)
2151 {
2152 u8 promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX;
2153 int status;
2154
2155 status = ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx, promisc_m,
2156 vlan->vid);
2157 if (status && status != -ENOENT)
2158 return status;
2159
2160 return 0;
2161 }
2162
2163 /**
2164 * ice_vf_has_max_vlans - check if VF already has the max allowed VLAN filters
2165 * @vf: VF to check against
2166 * @vsi: VF's VSI
2167 *
2168 * If the VF is trusted then the VF is allowed to add as many VLANs as it
2169 * wants to, so return false.
2170 *
2171 * When the VF is untrusted compare the number of non-zero VLANs + 1 to the max
2172 * allowed VLANs for an untrusted VF. Return the result of this comparison.
2173 */
ice_vf_has_max_vlans(struct ice_vf * vf,struct ice_vsi * vsi)2174 static bool ice_vf_has_max_vlans(struct ice_vf *vf, struct ice_vsi *vsi)
2175 {
2176 if (ice_is_vf_trusted(vf))
2177 return false;
2178
2179 #define ICE_VF_ADDED_VLAN_ZERO_FLTRS 1
2180 return ((ice_vsi_num_non_zero_vlans(vsi) +
2181 ICE_VF_ADDED_VLAN_ZERO_FLTRS) >= ICE_MAX_VLAN_PER_VF);
2182 }
2183
2184 /**
2185 * ice_vc_process_vlan_msg
2186 * @vf: pointer to the VF info
2187 * @msg: pointer to the msg buffer
2188 * @add_v: Add VLAN if true, otherwise delete VLAN
2189 *
2190 * Process virtchnl op to add or remove programmed guest VLAN ID
2191 */
ice_vc_process_vlan_msg(struct ice_vf * vf,u8 * msg,bool add_v)2192 static int ice_vc_process_vlan_msg(struct ice_vf *vf, u8 *msg, bool add_v)
2193 {
2194 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2195 struct virtchnl_vlan_filter_list *vfl =
2196 (struct virtchnl_vlan_filter_list *)msg;
2197 struct ice_pf *pf = vf->pf;
2198 bool vlan_promisc = false;
2199 struct ice_vsi *vsi;
2200 struct device *dev;
2201 int status = 0;
2202 int i;
2203
2204 dev = ice_pf_to_dev(pf);
2205 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2206 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2207 goto error_param;
2208 }
2209
2210 if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
2211 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2212 goto error_param;
2213 }
2214
2215 if (!ice_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
2216 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2217 goto error_param;
2218 }
2219
2220 for (i = 0; i < vfl->num_elements; i++) {
2221 if (vfl->vlan_id[i] >= VLAN_N_VID) {
2222 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2223 dev_err(dev, "invalid VF VLAN id %d\n",
2224 vfl->vlan_id[i]);
2225 goto error_param;
2226 }
2227 }
2228
2229 vsi = ice_get_vf_vsi(vf);
2230 if (!vsi) {
2231 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2232 goto error_param;
2233 }
2234
2235 if (add_v && ice_vf_has_max_vlans(vf, vsi)) {
2236 dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n",
2237 vf->vf_id);
2238 /* There is no need to let VF know about being not trusted,
2239 * so we can just return success message here
2240 */
2241 goto error_param;
2242 }
2243
2244 /* in DVM a VF can add/delete inner VLAN filters when
2245 * VIRTCHNL_VF_OFFLOAD_VLAN is negotiated, so only reject in SVM
2246 */
2247 if (ice_vf_is_port_vlan_ena(vf) && !ice_is_dvm_ena(&pf->hw)) {
2248 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2249 goto error_param;
2250 }
2251
2252 /* in DVM VLAN promiscuous is based on the outer VLAN, which would be
2253 * the port VLAN if VIRTCHNL_VF_OFFLOAD_VLAN was negotiated, so only
2254 * allow vlan_promisc = true in SVM and if no port VLAN is configured
2255 */
2256 vlan_promisc = ice_is_vlan_promisc_allowed(vf) &&
2257 !ice_is_dvm_ena(&pf->hw) &&
2258 !ice_vf_is_port_vlan_ena(vf);
2259
2260 if (add_v) {
2261 for (i = 0; i < vfl->num_elements; i++) {
2262 u16 vid = vfl->vlan_id[i];
2263 struct ice_vlan vlan;
2264
2265 if (ice_vf_has_max_vlans(vf, vsi)) {
2266 dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n",
2267 vf->vf_id);
2268 /* There is no need to let VF know about being
2269 * not trusted, so we can just return success
2270 * message here as well.
2271 */
2272 goto error_param;
2273 }
2274
2275 /* we add VLAN 0 by default for each VF so we can enable
2276 * Tx VLAN anti-spoof without triggering MDD events so
2277 * we don't need to add it again here
2278 */
2279 if (!vid)
2280 continue;
2281
2282 vlan = ICE_VLAN(ETH_P_8021Q, vid, 0);
2283 status = vsi->inner_vlan_ops.add_vlan(vsi, &vlan);
2284 if (status) {
2285 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2286 goto error_param;
2287 }
2288
2289 /* Enable VLAN filtering on first non-zero VLAN */
2290 if (!vlan_promisc && vid && !ice_is_dvm_ena(&pf->hw)) {
2291 if (vf->spoofchk) {
2292 status = vsi->inner_vlan_ops.ena_tx_filtering(vsi);
2293 if (status) {
2294 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2295 dev_err(dev, "Enable VLAN anti-spoofing on VLAN ID: %d failed error-%d\n",
2296 vid, status);
2297 goto error_param;
2298 }
2299 }
2300 if (vsi->inner_vlan_ops.ena_rx_filtering(vsi)) {
2301 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2302 dev_err(dev, "Enable VLAN pruning on VLAN ID: %d failed error-%d\n",
2303 vid, status);
2304 goto error_param;
2305 }
2306 } else if (vlan_promisc) {
2307 status = ice_vf_ena_vlan_promisc(vsi, &vlan);
2308 if (status) {
2309 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2310 dev_err(dev, "Enable Unicast/multicast promiscuous mode on VLAN ID:%d failed error-%d\n",
2311 vid, status);
2312 }
2313 }
2314 }
2315 } else {
2316 /* In case of non_trusted VF, number of VLAN elements passed
2317 * to PF for removal might be greater than number of VLANs
2318 * filter programmed for that VF - So, use actual number of
2319 * VLANS added earlier with add VLAN opcode. In order to avoid
2320 * removing VLAN that doesn't exist, which result to sending
2321 * erroneous failed message back to the VF
2322 */
2323 int num_vf_vlan;
2324
2325 num_vf_vlan = vsi->num_vlan;
2326 for (i = 0; i < vfl->num_elements && i < num_vf_vlan; i++) {
2327 u16 vid = vfl->vlan_id[i];
2328 struct ice_vlan vlan;
2329
2330 /* we add VLAN 0 by default for each VF so we can enable
2331 * Tx VLAN anti-spoof without triggering MDD events so
2332 * we don't want a VIRTCHNL request to remove it
2333 */
2334 if (!vid)
2335 continue;
2336
2337 vlan = ICE_VLAN(ETH_P_8021Q, vid, 0);
2338 status = vsi->inner_vlan_ops.del_vlan(vsi, &vlan);
2339 if (status) {
2340 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2341 goto error_param;
2342 }
2343
2344 /* Disable VLAN filtering when only VLAN 0 is left */
2345 if (!ice_vsi_has_non_zero_vlans(vsi)) {
2346 vsi->inner_vlan_ops.dis_tx_filtering(vsi);
2347 vsi->inner_vlan_ops.dis_rx_filtering(vsi);
2348 }
2349
2350 if (vlan_promisc)
2351 ice_vf_dis_vlan_promisc(vsi, &vlan);
2352 }
2353 }
2354
2355 error_param:
2356 /* send the response to the VF */
2357 if (add_v)
2358 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, v_ret,
2359 NULL, 0);
2360 else
2361 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, v_ret,
2362 NULL, 0);
2363 }
2364
2365 /**
2366 * ice_vc_add_vlan_msg
2367 * @vf: pointer to the VF info
2368 * @msg: pointer to the msg buffer
2369 *
2370 * Add and program guest VLAN ID
2371 */
ice_vc_add_vlan_msg(struct ice_vf * vf,u8 * msg)2372 static int ice_vc_add_vlan_msg(struct ice_vf *vf, u8 *msg)
2373 {
2374 return ice_vc_process_vlan_msg(vf, msg, true);
2375 }
2376
2377 /**
2378 * ice_vc_remove_vlan_msg
2379 * @vf: pointer to the VF info
2380 * @msg: pointer to the msg buffer
2381 *
2382 * remove programmed guest VLAN ID
2383 */
ice_vc_remove_vlan_msg(struct ice_vf * vf,u8 * msg)2384 static int ice_vc_remove_vlan_msg(struct ice_vf *vf, u8 *msg)
2385 {
2386 return ice_vc_process_vlan_msg(vf, msg, false);
2387 }
2388
2389 /**
2390 * ice_vc_ena_vlan_stripping
2391 * @vf: pointer to the VF info
2392 *
2393 * Enable VLAN header stripping for a given VF
2394 */
ice_vc_ena_vlan_stripping(struct ice_vf * vf)2395 static int ice_vc_ena_vlan_stripping(struct ice_vf *vf)
2396 {
2397 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2398 struct ice_vsi *vsi;
2399
2400 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2401 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2402 goto error_param;
2403 }
2404
2405 if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
2406 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2407 goto error_param;
2408 }
2409
2410 vsi = ice_get_vf_vsi(vf);
2411 if (!vsi) {
2412 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2413 goto error_param;
2414 }
2415
2416 if (vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q))
2417 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2418
2419 error_param:
2420 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
2421 v_ret, NULL, 0);
2422 }
2423
2424 /**
2425 * ice_vc_dis_vlan_stripping
2426 * @vf: pointer to the VF info
2427 *
2428 * Disable VLAN header stripping for a given VF
2429 */
ice_vc_dis_vlan_stripping(struct ice_vf * vf)2430 static int ice_vc_dis_vlan_stripping(struct ice_vf *vf)
2431 {
2432 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2433 struct ice_vsi *vsi;
2434
2435 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2436 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2437 goto error_param;
2438 }
2439
2440 if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
2441 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2442 goto error_param;
2443 }
2444
2445 vsi = ice_get_vf_vsi(vf);
2446 if (!vsi) {
2447 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2448 goto error_param;
2449 }
2450
2451 if (vsi->inner_vlan_ops.dis_stripping(vsi))
2452 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2453
2454 error_param:
2455 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
2456 v_ret, NULL, 0);
2457 }
2458
2459 /**
2460 * ice_vf_init_vlan_stripping - enable/disable VLAN stripping on initialization
2461 * @vf: VF to enable/disable VLAN stripping for on initialization
2462 *
2463 * Set the default for VLAN stripping based on whether a port VLAN is configured
2464 * and the current VLAN mode of the device.
2465 */
ice_vf_init_vlan_stripping(struct ice_vf * vf)2466 static int ice_vf_init_vlan_stripping(struct ice_vf *vf)
2467 {
2468 struct ice_vsi *vsi = ice_get_vf_vsi(vf);
2469
2470 if (!vsi)
2471 return -EINVAL;
2472
2473 /* don't modify stripping if port VLAN is configured in SVM since the
2474 * port VLAN is based on the inner/single VLAN in SVM
2475 */
2476 if (ice_vf_is_port_vlan_ena(vf) && !ice_is_dvm_ena(&vsi->back->hw))
2477 return 0;
2478
2479 if (ice_vf_vlan_offload_ena(vf->driver_caps))
2480 return vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q);
2481 else
2482 return vsi->inner_vlan_ops.dis_stripping(vsi);
2483 }
2484
ice_vc_get_max_vlan_fltrs(struct ice_vf * vf)2485 static u16 ice_vc_get_max_vlan_fltrs(struct ice_vf *vf)
2486 {
2487 if (vf->trusted)
2488 return VLAN_N_VID;
2489 else
2490 return ICE_MAX_VLAN_PER_VF;
2491 }
2492
2493 /**
2494 * ice_vf_outer_vlan_not_allowed - check if outer VLAN can be used
2495 * @vf: VF that being checked for
2496 *
2497 * When the device is in double VLAN mode, check whether or not the outer VLAN
2498 * is allowed.
2499 */
ice_vf_outer_vlan_not_allowed(struct ice_vf * vf)2500 static bool ice_vf_outer_vlan_not_allowed(struct ice_vf *vf)
2501 {
2502 if (ice_vf_is_port_vlan_ena(vf))
2503 return true;
2504
2505 return false;
2506 }
2507
2508 /**
2509 * ice_vc_set_dvm_caps - set VLAN capabilities when the device is in DVM
2510 * @vf: VF that capabilities are being set for
2511 * @caps: VLAN capabilities to populate
2512 *
2513 * Determine VLAN capabilities support based on whether a port VLAN is
2514 * configured. If a port VLAN is configured then the VF should use the inner
2515 * filtering/offload capabilities since the port VLAN is using the outer VLAN
2516 * capabilies.
2517 */
2518 static void
ice_vc_set_dvm_caps(struct ice_vf * vf,struct virtchnl_vlan_caps * caps)2519 ice_vc_set_dvm_caps(struct ice_vf *vf, struct virtchnl_vlan_caps *caps)
2520 {
2521 struct virtchnl_vlan_supported_caps *supported_caps;
2522
2523 if (ice_vf_outer_vlan_not_allowed(vf)) {
2524 /* until support for inner VLAN filtering is added when a port
2525 * VLAN is configured, only support software offloaded inner
2526 * VLANs when a port VLAN is confgured in DVM
2527 */
2528 supported_caps = &caps->filtering.filtering_support;
2529 supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2530
2531 supported_caps = &caps->offloads.stripping_support;
2532 supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2533 VIRTCHNL_VLAN_TOGGLE |
2534 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2535 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2536
2537 supported_caps = &caps->offloads.insertion_support;
2538 supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2539 VIRTCHNL_VLAN_TOGGLE |
2540 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2541 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2542
2543 caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
2544 caps->offloads.ethertype_match =
2545 VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
2546 } else {
2547 supported_caps = &caps->filtering.filtering_support;
2548 supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2549 supported_caps->outer = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2550 VIRTCHNL_VLAN_ETHERTYPE_88A8 |
2551 VIRTCHNL_VLAN_ETHERTYPE_9100 |
2552 VIRTCHNL_VLAN_ETHERTYPE_AND;
2553 caps->filtering.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2554 VIRTCHNL_VLAN_ETHERTYPE_88A8 |
2555 VIRTCHNL_VLAN_ETHERTYPE_9100;
2556
2557 supported_caps = &caps->offloads.stripping_support;
2558 supported_caps->inner = VIRTCHNL_VLAN_TOGGLE |
2559 VIRTCHNL_VLAN_ETHERTYPE_8100 |
2560 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2561 supported_caps->outer = VIRTCHNL_VLAN_TOGGLE |
2562 VIRTCHNL_VLAN_ETHERTYPE_8100 |
2563 VIRTCHNL_VLAN_ETHERTYPE_88A8 |
2564 VIRTCHNL_VLAN_ETHERTYPE_9100 |
2565 VIRTCHNL_VLAN_ETHERTYPE_XOR |
2566 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2;
2567
2568 supported_caps = &caps->offloads.insertion_support;
2569 supported_caps->inner = VIRTCHNL_VLAN_TOGGLE |
2570 VIRTCHNL_VLAN_ETHERTYPE_8100 |
2571 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2572 supported_caps->outer = VIRTCHNL_VLAN_TOGGLE |
2573 VIRTCHNL_VLAN_ETHERTYPE_8100 |
2574 VIRTCHNL_VLAN_ETHERTYPE_88A8 |
2575 VIRTCHNL_VLAN_ETHERTYPE_9100 |
2576 VIRTCHNL_VLAN_ETHERTYPE_XOR |
2577 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2;
2578
2579 caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
2580
2581 caps->offloads.ethertype_match =
2582 VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
2583 }
2584
2585 caps->filtering.max_filters = ice_vc_get_max_vlan_fltrs(vf);
2586 }
2587
2588 /**
2589 * ice_vc_set_svm_caps - set VLAN capabilities when the device is in SVM
2590 * @vf: VF that capabilities are being set for
2591 * @caps: VLAN capabilities to populate
2592 *
2593 * Determine VLAN capabilities support based on whether a port VLAN is
2594 * configured. If a port VLAN is configured then the VF does not have any VLAN
2595 * filtering or offload capabilities since the port VLAN is using the inner VLAN
2596 * capabilities in single VLAN mode (SVM). Otherwise allow the VF to use inner
2597 * VLAN fitlering and offload capabilities.
2598 */
2599 static void
ice_vc_set_svm_caps(struct ice_vf * vf,struct virtchnl_vlan_caps * caps)2600 ice_vc_set_svm_caps(struct ice_vf *vf, struct virtchnl_vlan_caps *caps)
2601 {
2602 struct virtchnl_vlan_supported_caps *supported_caps;
2603
2604 if (ice_vf_is_port_vlan_ena(vf)) {
2605 supported_caps = &caps->filtering.filtering_support;
2606 supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2607 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2608
2609 supported_caps = &caps->offloads.stripping_support;
2610 supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2611 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2612
2613 supported_caps = &caps->offloads.insertion_support;
2614 supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2615 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2616
2617 caps->offloads.ethertype_init = VIRTCHNL_VLAN_UNSUPPORTED;
2618 caps->offloads.ethertype_match = VIRTCHNL_VLAN_UNSUPPORTED;
2619 caps->filtering.max_filters = 0;
2620 } else {
2621 supported_caps = &caps->filtering.filtering_support;
2622 supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100;
2623 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2624 caps->filtering.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
2625
2626 supported_caps = &caps->offloads.stripping_support;
2627 supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2628 VIRTCHNL_VLAN_TOGGLE |
2629 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2630 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2631
2632 supported_caps = &caps->offloads.insertion_support;
2633 supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2634 VIRTCHNL_VLAN_TOGGLE |
2635 VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2636 supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2637
2638 caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
2639 caps->offloads.ethertype_match =
2640 VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
2641 caps->filtering.max_filters = ice_vc_get_max_vlan_fltrs(vf);
2642 }
2643 }
2644
2645 /**
2646 * ice_vc_get_offload_vlan_v2_caps - determine VF's VLAN capabilities
2647 * @vf: VF to determine VLAN capabilities for
2648 *
2649 * This will only be called if the VF and PF successfully negotiated
2650 * VIRTCHNL_VF_OFFLOAD_VLAN_V2.
2651 *
2652 * Set VLAN capabilities based on the current VLAN mode and whether a port VLAN
2653 * is configured or not.
2654 */
ice_vc_get_offload_vlan_v2_caps(struct ice_vf * vf)2655 static int ice_vc_get_offload_vlan_v2_caps(struct ice_vf *vf)
2656 {
2657 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2658 struct virtchnl_vlan_caps *caps = NULL;
2659 int err, len = 0;
2660
2661 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2662 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2663 goto out;
2664 }
2665
2666 caps = kzalloc(sizeof(*caps), GFP_KERNEL);
2667 if (!caps) {
2668 v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
2669 goto out;
2670 }
2671 len = sizeof(*caps);
2672
2673 if (ice_is_dvm_ena(&vf->pf->hw))
2674 ice_vc_set_dvm_caps(vf, caps);
2675 else
2676 ice_vc_set_svm_caps(vf, caps);
2677
2678 /* store negotiated caps to prevent invalid VF messages */
2679 memcpy(&vf->vlan_v2_caps, caps, sizeof(*caps));
2680
2681 out:
2682 err = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS,
2683 v_ret, (u8 *)caps, len);
2684 kfree(caps);
2685 return err;
2686 }
2687
2688 /**
2689 * ice_vc_validate_vlan_tpid - validate VLAN TPID
2690 * @filtering_caps: negotiated/supported VLAN filtering capabilities
2691 * @tpid: VLAN TPID used for validation
2692 *
2693 * Convert the VLAN TPID to a VIRTCHNL_VLAN_ETHERTYPE_* and then compare against
2694 * the negotiated/supported filtering caps to see if the VLAN TPID is valid.
2695 */
ice_vc_validate_vlan_tpid(u16 filtering_caps,u16 tpid)2696 static bool ice_vc_validate_vlan_tpid(u16 filtering_caps, u16 tpid)
2697 {
2698 enum virtchnl_vlan_support vlan_ethertype = VIRTCHNL_VLAN_UNSUPPORTED;
2699
2700 switch (tpid) {
2701 case ETH_P_8021Q:
2702 vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_8100;
2703 break;
2704 case ETH_P_8021AD:
2705 vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_88A8;
2706 break;
2707 case ETH_P_QINQ1:
2708 vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_9100;
2709 break;
2710 }
2711
2712 if (!(filtering_caps & vlan_ethertype))
2713 return false;
2714
2715 return true;
2716 }
2717
2718 /**
2719 * ice_vc_is_valid_vlan - validate the virtchnl_vlan
2720 * @vc_vlan: virtchnl_vlan to validate
2721 *
2722 * If the VLAN TCI and VLAN TPID are 0, then this filter is invalid, so return
2723 * false. Otherwise return true.
2724 */
ice_vc_is_valid_vlan(struct virtchnl_vlan * vc_vlan)2725 static bool ice_vc_is_valid_vlan(struct virtchnl_vlan *vc_vlan)
2726 {
2727 if (!vc_vlan->tci || !vc_vlan->tpid)
2728 return false;
2729
2730 return true;
2731 }
2732
2733 /**
2734 * ice_vc_validate_vlan_filter_list - validate the filter list from the VF
2735 * @vfc: negotiated/supported VLAN filtering capabilities
2736 * @vfl: VLAN filter list from VF to validate
2737 *
2738 * Validate all of the filters in the VLAN filter list from the VF. If any of
2739 * the checks fail then return false. Otherwise return true.
2740 */
2741 static bool
ice_vc_validate_vlan_filter_list(struct virtchnl_vlan_filtering_caps * vfc,struct virtchnl_vlan_filter_list_v2 * vfl)2742 ice_vc_validate_vlan_filter_list(struct virtchnl_vlan_filtering_caps *vfc,
2743 struct virtchnl_vlan_filter_list_v2 *vfl)
2744 {
2745 u16 i;
2746
2747 if (!vfl->num_elements)
2748 return false;
2749
2750 for (i = 0; i < vfl->num_elements; i++) {
2751 struct virtchnl_vlan_supported_caps *filtering_support =
2752 &vfc->filtering_support;
2753 struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
2754 struct virtchnl_vlan *outer = &vlan_fltr->outer;
2755 struct virtchnl_vlan *inner = &vlan_fltr->inner;
2756
2757 if ((ice_vc_is_valid_vlan(outer) &&
2758 filtering_support->outer == VIRTCHNL_VLAN_UNSUPPORTED) ||
2759 (ice_vc_is_valid_vlan(inner) &&
2760 filtering_support->inner == VIRTCHNL_VLAN_UNSUPPORTED))
2761 return false;
2762
2763 if ((outer->tci_mask &&
2764 !(filtering_support->outer & VIRTCHNL_VLAN_FILTER_MASK)) ||
2765 (inner->tci_mask &&
2766 !(filtering_support->inner & VIRTCHNL_VLAN_FILTER_MASK)))
2767 return false;
2768
2769 if (((outer->tci & VLAN_PRIO_MASK) &&
2770 !(filtering_support->outer & VIRTCHNL_VLAN_PRIO)) ||
2771 ((inner->tci & VLAN_PRIO_MASK) &&
2772 !(filtering_support->inner & VIRTCHNL_VLAN_PRIO)))
2773 return false;
2774
2775 if ((ice_vc_is_valid_vlan(outer) &&
2776 !ice_vc_validate_vlan_tpid(filtering_support->outer,
2777 outer->tpid)) ||
2778 (ice_vc_is_valid_vlan(inner) &&
2779 !ice_vc_validate_vlan_tpid(filtering_support->inner,
2780 inner->tpid)))
2781 return false;
2782 }
2783
2784 return true;
2785 }
2786
2787 /**
2788 * ice_vc_to_vlan - transform from struct virtchnl_vlan to struct ice_vlan
2789 * @vc_vlan: struct virtchnl_vlan to transform
2790 */
ice_vc_to_vlan(struct virtchnl_vlan * vc_vlan)2791 static struct ice_vlan ice_vc_to_vlan(struct virtchnl_vlan *vc_vlan)
2792 {
2793 struct ice_vlan vlan = { 0 };
2794
2795 vlan.prio = (vc_vlan->tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
2796 vlan.vid = vc_vlan->tci & VLAN_VID_MASK;
2797 vlan.tpid = vc_vlan->tpid;
2798
2799 return vlan;
2800 }
2801
2802 /**
2803 * ice_vc_vlan_action - action to perform on the virthcnl_vlan
2804 * @vsi: VF's VSI used to perform the action
2805 * @vlan_action: function to perform the action with (i.e. add/del)
2806 * @vlan: VLAN filter to perform the action with
2807 */
2808 static int
ice_vc_vlan_action(struct ice_vsi * vsi,int (* vlan_action)(struct ice_vsi *,struct ice_vlan *),struct ice_vlan * vlan)2809 ice_vc_vlan_action(struct ice_vsi *vsi,
2810 int (*vlan_action)(struct ice_vsi *, struct ice_vlan *),
2811 struct ice_vlan *vlan)
2812 {
2813 int err;
2814
2815 err = vlan_action(vsi, vlan);
2816 if (err)
2817 return err;
2818
2819 return 0;
2820 }
2821
2822 /**
2823 * ice_vc_del_vlans - delete VLAN(s) from the virtchnl filter list
2824 * @vf: VF used to delete the VLAN(s)
2825 * @vsi: VF's VSI used to delete the VLAN(s)
2826 * @vfl: virthchnl filter list used to delete the filters
2827 */
2828 static int
ice_vc_del_vlans(struct ice_vf * vf,struct ice_vsi * vsi,struct virtchnl_vlan_filter_list_v2 * vfl)2829 ice_vc_del_vlans(struct ice_vf *vf, struct ice_vsi *vsi,
2830 struct virtchnl_vlan_filter_list_v2 *vfl)
2831 {
2832 bool vlan_promisc = ice_is_vlan_promisc_allowed(vf);
2833 int err;
2834 u16 i;
2835
2836 for (i = 0; i < vfl->num_elements; i++) {
2837 struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
2838 struct virtchnl_vlan *vc_vlan;
2839
2840 vc_vlan = &vlan_fltr->outer;
2841 if (ice_vc_is_valid_vlan(vc_vlan)) {
2842 struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
2843
2844 err = ice_vc_vlan_action(vsi,
2845 vsi->outer_vlan_ops.del_vlan,
2846 &vlan);
2847 if (err)
2848 return err;
2849
2850 if (vlan_promisc)
2851 ice_vf_dis_vlan_promisc(vsi, &vlan);
2852
2853 /* Disable VLAN filtering when only VLAN 0 is left */
2854 if (!ice_vsi_has_non_zero_vlans(vsi) && ice_is_dvm_ena(&vsi->back->hw)) {
2855 err = vsi->outer_vlan_ops.dis_tx_filtering(vsi);
2856 if (err)
2857 return err;
2858 }
2859 }
2860
2861 vc_vlan = &vlan_fltr->inner;
2862 if (ice_vc_is_valid_vlan(vc_vlan)) {
2863 struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
2864
2865 err = ice_vc_vlan_action(vsi,
2866 vsi->inner_vlan_ops.del_vlan,
2867 &vlan);
2868 if (err)
2869 return err;
2870
2871 /* no support for VLAN promiscuous on inner VLAN unless
2872 * we are in Single VLAN Mode (SVM)
2873 */
2874 if (!ice_is_dvm_ena(&vsi->back->hw)) {
2875 if (vlan_promisc)
2876 ice_vf_dis_vlan_promisc(vsi, &vlan);
2877
2878 /* Disable VLAN filtering when only VLAN 0 is left */
2879 if (!ice_vsi_has_non_zero_vlans(vsi)) {
2880 err = vsi->inner_vlan_ops.dis_tx_filtering(vsi);
2881 if (err)
2882 return err;
2883 }
2884 }
2885 }
2886 }
2887
2888 return 0;
2889 }
2890
2891 /**
2892 * ice_vc_remove_vlan_v2_msg - virtchnl handler for VIRTCHNL_OP_DEL_VLAN_V2
2893 * @vf: VF the message was received from
2894 * @msg: message received from the VF
2895 */
ice_vc_remove_vlan_v2_msg(struct ice_vf * vf,u8 * msg)2896 static int ice_vc_remove_vlan_v2_msg(struct ice_vf *vf, u8 *msg)
2897 {
2898 struct virtchnl_vlan_filter_list_v2 *vfl =
2899 (struct virtchnl_vlan_filter_list_v2 *)msg;
2900 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2901 struct ice_vsi *vsi;
2902
2903 if (!ice_vc_validate_vlan_filter_list(&vf->vlan_v2_caps.filtering,
2904 vfl)) {
2905 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2906 goto out;
2907 }
2908
2909 if (!ice_vc_isvalid_vsi_id(vf, vfl->vport_id)) {
2910 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2911 goto out;
2912 }
2913
2914 vsi = ice_get_vf_vsi(vf);
2915 if (!vsi) {
2916 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2917 goto out;
2918 }
2919
2920 if (ice_vc_del_vlans(vf, vsi, vfl))
2921 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2922
2923 out:
2924 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN_V2, v_ret, NULL,
2925 0);
2926 }
2927
2928 /**
2929 * ice_vc_add_vlans - add VLAN(s) from the virtchnl filter list
2930 * @vf: VF used to add the VLAN(s)
2931 * @vsi: VF's VSI used to add the VLAN(s)
2932 * @vfl: virthchnl filter list used to add the filters
2933 */
2934 static int
ice_vc_add_vlans(struct ice_vf * vf,struct ice_vsi * vsi,struct virtchnl_vlan_filter_list_v2 * vfl)2935 ice_vc_add_vlans(struct ice_vf *vf, struct ice_vsi *vsi,
2936 struct virtchnl_vlan_filter_list_v2 *vfl)
2937 {
2938 bool vlan_promisc = ice_is_vlan_promisc_allowed(vf);
2939 int err;
2940 u16 i;
2941
2942 for (i = 0; i < vfl->num_elements; i++) {
2943 struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
2944 struct virtchnl_vlan *vc_vlan;
2945
2946 vc_vlan = &vlan_fltr->outer;
2947 if (ice_vc_is_valid_vlan(vc_vlan)) {
2948 struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
2949
2950 err = ice_vc_vlan_action(vsi,
2951 vsi->outer_vlan_ops.add_vlan,
2952 &vlan);
2953 if (err)
2954 return err;
2955
2956 if (vlan_promisc) {
2957 err = ice_vf_ena_vlan_promisc(vsi, &vlan);
2958 if (err)
2959 return err;
2960 }
2961
2962 /* Enable VLAN filtering on first non-zero VLAN */
2963 if (vf->spoofchk && vlan.vid && ice_is_dvm_ena(&vsi->back->hw)) {
2964 err = vsi->outer_vlan_ops.ena_tx_filtering(vsi);
2965 if (err)
2966 return err;
2967 }
2968 }
2969
2970 vc_vlan = &vlan_fltr->inner;
2971 if (ice_vc_is_valid_vlan(vc_vlan)) {
2972 struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
2973
2974 err = ice_vc_vlan_action(vsi,
2975 vsi->inner_vlan_ops.add_vlan,
2976 &vlan);
2977 if (err)
2978 return err;
2979
2980 /* no support for VLAN promiscuous on inner VLAN unless
2981 * we are in Single VLAN Mode (SVM)
2982 */
2983 if (!ice_is_dvm_ena(&vsi->back->hw)) {
2984 if (vlan_promisc) {
2985 err = ice_vf_ena_vlan_promisc(vsi, &vlan);
2986 if (err)
2987 return err;
2988 }
2989
2990 /* Enable VLAN filtering on first non-zero VLAN */
2991 if (vf->spoofchk && vlan.vid) {
2992 err = vsi->inner_vlan_ops.ena_tx_filtering(vsi);
2993 if (err)
2994 return err;
2995 }
2996 }
2997 }
2998 }
2999
3000 return 0;
3001 }
3002
3003 /**
3004 * ice_vc_validate_add_vlan_filter_list - validate add filter list from the VF
3005 * @vsi: VF VSI used to get number of existing VLAN filters
3006 * @vfc: negotiated/supported VLAN filtering capabilities
3007 * @vfl: VLAN filter list from VF to validate
3008 *
3009 * Validate all of the filters in the VLAN filter list from the VF during the
3010 * VIRTCHNL_OP_ADD_VLAN_V2 opcode. If any of the checks fail then return false.
3011 * Otherwise return true.
3012 */
3013 static bool
ice_vc_validate_add_vlan_filter_list(struct ice_vsi * vsi,struct virtchnl_vlan_filtering_caps * vfc,struct virtchnl_vlan_filter_list_v2 * vfl)3014 ice_vc_validate_add_vlan_filter_list(struct ice_vsi *vsi,
3015 struct virtchnl_vlan_filtering_caps *vfc,
3016 struct virtchnl_vlan_filter_list_v2 *vfl)
3017 {
3018 u16 num_requested_filters = ice_vsi_num_non_zero_vlans(vsi) +
3019 vfl->num_elements;
3020
3021 if (num_requested_filters > vfc->max_filters)
3022 return false;
3023
3024 return ice_vc_validate_vlan_filter_list(vfc, vfl);
3025 }
3026
3027 /**
3028 * ice_vc_add_vlan_v2_msg - virtchnl handler for VIRTCHNL_OP_ADD_VLAN_V2
3029 * @vf: VF the message was received from
3030 * @msg: message received from the VF
3031 */
ice_vc_add_vlan_v2_msg(struct ice_vf * vf,u8 * msg)3032 static int ice_vc_add_vlan_v2_msg(struct ice_vf *vf, u8 *msg)
3033 {
3034 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3035 struct virtchnl_vlan_filter_list_v2 *vfl =
3036 (struct virtchnl_vlan_filter_list_v2 *)msg;
3037 struct ice_vsi *vsi;
3038
3039 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3040 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3041 goto out;
3042 }
3043
3044 if (!ice_vc_isvalid_vsi_id(vf, vfl->vport_id)) {
3045 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3046 goto out;
3047 }
3048
3049 vsi = ice_get_vf_vsi(vf);
3050 if (!vsi) {
3051 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3052 goto out;
3053 }
3054
3055 if (!ice_vc_validate_add_vlan_filter_list(vsi,
3056 &vf->vlan_v2_caps.filtering,
3057 vfl)) {
3058 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3059 goto out;
3060 }
3061
3062 if (ice_vc_add_vlans(vf, vsi, vfl))
3063 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3064
3065 out:
3066 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN_V2, v_ret, NULL,
3067 0);
3068 }
3069
3070 /**
3071 * ice_vc_valid_vlan_setting - validate VLAN setting
3072 * @negotiated_settings: negotiated VLAN settings during VF init
3073 * @ethertype_setting: ethertype(s) requested for the VLAN setting
3074 */
3075 static bool
ice_vc_valid_vlan_setting(u32 negotiated_settings,u32 ethertype_setting)3076 ice_vc_valid_vlan_setting(u32 negotiated_settings, u32 ethertype_setting)
3077 {
3078 if (ethertype_setting && !(negotiated_settings & ethertype_setting))
3079 return false;
3080
3081 /* only allow a single VIRTCHNL_VLAN_ETHERTYPE if
3082 * VIRTHCNL_VLAN_ETHERTYPE_AND is not negotiated/supported
3083 */
3084 if (!(negotiated_settings & VIRTCHNL_VLAN_ETHERTYPE_AND) &&
3085 hweight32(ethertype_setting) > 1)
3086 return false;
3087
3088 /* ability to modify the VLAN setting was not negotiated */
3089 if (!(negotiated_settings & VIRTCHNL_VLAN_TOGGLE))
3090 return false;
3091
3092 return true;
3093 }
3094
3095 /**
3096 * ice_vc_valid_vlan_setting_msg - validate the VLAN setting message
3097 * @caps: negotiated VLAN settings during VF init
3098 * @msg: message to validate
3099 *
3100 * Used to validate any VLAN virtchnl message sent as a
3101 * virtchnl_vlan_setting structure. Validates the message against the
3102 * negotiated/supported caps during VF driver init.
3103 */
3104 static bool
ice_vc_valid_vlan_setting_msg(struct virtchnl_vlan_supported_caps * caps,struct virtchnl_vlan_setting * msg)3105 ice_vc_valid_vlan_setting_msg(struct virtchnl_vlan_supported_caps *caps,
3106 struct virtchnl_vlan_setting *msg)
3107 {
3108 if ((!msg->outer_ethertype_setting &&
3109 !msg->inner_ethertype_setting) ||
3110 (!caps->outer && !caps->inner))
3111 return false;
3112
3113 if (msg->outer_ethertype_setting &&
3114 !ice_vc_valid_vlan_setting(caps->outer,
3115 msg->outer_ethertype_setting))
3116 return false;
3117
3118 if (msg->inner_ethertype_setting &&
3119 !ice_vc_valid_vlan_setting(caps->inner,
3120 msg->inner_ethertype_setting))
3121 return false;
3122
3123 return true;
3124 }
3125
3126 /**
3127 * ice_vc_get_tpid - transform from VIRTCHNL_VLAN_ETHERTYPE_* to VLAN TPID
3128 * @ethertype_setting: VIRTCHNL_VLAN_ETHERTYPE_* used to get VLAN TPID
3129 * @tpid: VLAN TPID to populate
3130 */
ice_vc_get_tpid(u32 ethertype_setting,u16 * tpid)3131 static int ice_vc_get_tpid(u32 ethertype_setting, u16 *tpid)
3132 {
3133 switch (ethertype_setting) {
3134 case VIRTCHNL_VLAN_ETHERTYPE_8100:
3135 *tpid = ETH_P_8021Q;
3136 break;
3137 case VIRTCHNL_VLAN_ETHERTYPE_88A8:
3138 *tpid = ETH_P_8021AD;
3139 break;
3140 case VIRTCHNL_VLAN_ETHERTYPE_9100:
3141 *tpid = ETH_P_QINQ1;
3142 break;
3143 default:
3144 *tpid = 0;
3145 return -EINVAL;
3146 }
3147
3148 return 0;
3149 }
3150
3151 /**
3152 * ice_vc_ena_vlan_offload - enable VLAN offload based on the ethertype_setting
3153 * @vsi: VF's VSI used to enable the VLAN offload
3154 * @ena_offload: function used to enable the VLAN offload
3155 * @ethertype_setting: VIRTCHNL_VLAN_ETHERTYPE_* to enable offloads for
3156 */
3157 static int
ice_vc_ena_vlan_offload(struct ice_vsi * vsi,int (* ena_offload)(struct ice_vsi * vsi,u16 tpid),u32 ethertype_setting)3158 ice_vc_ena_vlan_offload(struct ice_vsi *vsi,
3159 int (*ena_offload)(struct ice_vsi *vsi, u16 tpid),
3160 u32 ethertype_setting)
3161 {
3162 u16 tpid;
3163 int err;
3164
3165 err = ice_vc_get_tpid(ethertype_setting, &tpid);
3166 if (err)
3167 return err;
3168
3169 err = ena_offload(vsi, tpid);
3170 if (err)
3171 return err;
3172
3173 return 0;
3174 }
3175
3176 #define ICE_L2TSEL_QRX_CONTEXT_REG_IDX 3
3177 #define ICE_L2TSEL_BIT_OFFSET 23
3178 enum ice_l2tsel {
3179 ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND,
3180 ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG1,
3181 };
3182
3183 /**
3184 * ice_vsi_update_l2tsel - update l2tsel field for all Rx rings on this VSI
3185 * @vsi: VSI used to update l2tsel on
3186 * @l2tsel: l2tsel setting requested
3187 *
3188 * Use the l2tsel setting to update all of the Rx queue context bits for l2tsel.
3189 * This will modify which descriptor field the first offloaded VLAN will be
3190 * stripped into.
3191 */
ice_vsi_update_l2tsel(struct ice_vsi * vsi,enum ice_l2tsel l2tsel)3192 static void ice_vsi_update_l2tsel(struct ice_vsi *vsi, enum ice_l2tsel l2tsel)
3193 {
3194 struct ice_hw *hw = &vsi->back->hw;
3195 u32 l2tsel_bit;
3196 int i;
3197
3198 if (l2tsel == ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND)
3199 l2tsel_bit = 0;
3200 else
3201 l2tsel_bit = BIT(ICE_L2TSEL_BIT_OFFSET);
3202
3203 for (i = 0; i < vsi->alloc_rxq; i++) {
3204 u16 pfq = vsi->rxq_map[i];
3205 u32 qrx_context_offset;
3206 u32 regval;
3207
3208 qrx_context_offset =
3209 QRX_CONTEXT(ICE_L2TSEL_QRX_CONTEXT_REG_IDX, pfq);
3210
3211 regval = rd32(hw, qrx_context_offset);
3212 regval &= ~BIT(ICE_L2TSEL_BIT_OFFSET);
3213 regval |= l2tsel_bit;
3214 wr32(hw, qrx_context_offset, regval);
3215 }
3216 }
3217
3218 /**
3219 * ice_vc_ena_vlan_stripping_v2_msg
3220 * @vf: VF the message was received from
3221 * @msg: message received from the VF
3222 *
3223 * virthcnl handler for VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2
3224 */
ice_vc_ena_vlan_stripping_v2_msg(struct ice_vf * vf,u8 * msg)3225 static int ice_vc_ena_vlan_stripping_v2_msg(struct ice_vf *vf, u8 *msg)
3226 {
3227 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3228 struct virtchnl_vlan_supported_caps *stripping_support;
3229 struct virtchnl_vlan_setting *strip_msg =
3230 (struct virtchnl_vlan_setting *)msg;
3231 u32 ethertype_setting;
3232 struct ice_vsi *vsi;
3233
3234 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3235 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3236 goto out;
3237 }
3238
3239 if (!ice_vc_isvalid_vsi_id(vf, strip_msg->vport_id)) {
3240 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3241 goto out;
3242 }
3243
3244 vsi = ice_get_vf_vsi(vf);
3245 if (!vsi) {
3246 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3247 goto out;
3248 }
3249
3250 stripping_support = &vf->vlan_v2_caps.offloads.stripping_support;
3251 if (!ice_vc_valid_vlan_setting_msg(stripping_support, strip_msg)) {
3252 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3253 goto out;
3254 }
3255
3256 ethertype_setting = strip_msg->outer_ethertype_setting;
3257 if (ethertype_setting) {
3258 if (ice_vc_ena_vlan_offload(vsi,
3259 vsi->outer_vlan_ops.ena_stripping,
3260 ethertype_setting)) {
3261 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3262 goto out;
3263 } else {
3264 enum ice_l2tsel l2tsel =
3265 ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND;
3266
3267 /* PF tells the VF that the outer VLAN tag is always
3268 * extracted to VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 and
3269 * inner is always extracted to
3270 * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1. This is needed to
3271 * support outer stripping so the first tag always ends
3272 * up in L2TAG2_2ND and the second/inner tag, if
3273 * enabled, is extracted in L2TAG1.
3274 */
3275 ice_vsi_update_l2tsel(vsi, l2tsel);
3276 }
3277 }
3278
3279 ethertype_setting = strip_msg->inner_ethertype_setting;
3280 if (ethertype_setting &&
3281 ice_vc_ena_vlan_offload(vsi, vsi->inner_vlan_ops.ena_stripping,
3282 ethertype_setting)) {
3283 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3284 goto out;
3285 }
3286
3287 out:
3288 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2,
3289 v_ret, NULL, 0);
3290 }
3291
3292 /**
3293 * ice_vc_dis_vlan_stripping_v2_msg
3294 * @vf: VF the message was received from
3295 * @msg: message received from the VF
3296 *
3297 * virthcnl handler for VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2
3298 */
ice_vc_dis_vlan_stripping_v2_msg(struct ice_vf * vf,u8 * msg)3299 static int ice_vc_dis_vlan_stripping_v2_msg(struct ice_vf *vf, u8 *msg)
3300 {
3301 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3302 struct virtchnl_vlan_supported_caps *stripping_support;
3303 struct virtchnl_vlan_setting *strip_msg =
3304 (struct virtchnl_vlan_setting *)msg;
3305 u32 ethertype_setting;
3306 struct ice_vsi *vsi;
3307
3308 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3309 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3310 goto out;
3311 }
3312
3313 if (!ice_vc_isvalid_vsi_id(vf, strip_msg->vport_id)) {
3314 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3315 goto out;
3316 }
3317
3318 vsi = ice_get_vf_vsi(vf);
3319 if (!vsi) {
3320 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3321 goto out;
3322 }
3323
3324 stripping_support = &vf->vlan_v2_caps.offloads.stripping_support;
3325 if (!ice_vc_valid_vlan_setting_msg(stripping_support, strip_msg)) {
3326 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3327 goto out;
3328 }
3329
3330 ethertype_setting = strip_msg->outer_ethertype_setting;
3331 if (ethertype_setting) {
3332 if (vsi->outer_vlan_ops.dis_stripping(vsi)) {
3333 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3334 goto out;
3335 } else {
3336 enum ice_l2tsel l2tsel =
3337 ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG1;
3338
3339 /* PF tells the VF that the outer VLAN tag is always
3340 * extracted to VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 and
3341 * inner is always extracted to
3342 * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1. This is needed to
3343 * support inner stripping while outer stripping is
3344 * disabled so that the first and only tag is extracted
3345 * in L2TAG1.
3346 */
3347 ice_vsi_update_l2tsel(vsi, l2tsel);
3348 }
3349 }
3350
3351 ethertype_setting = strip_msg->inner_ethertype_setting;
3352 if (ethertype_setting && vsi->inner_vlan_ops.dis_stripping(vsi)) {
3353 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3354 goto out;
3355 }
3356
3357 out:
3358 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2,
3359 v_ret, NULL, 0);
3360 }
3361
3362 /**
3363 * ice_vc_ena_vlan_insertion_v2_msg
3364 * @vf: VF the message was received from
3365 * @msg: message received from the VF
3366 *
3367 * virthcnl handler for VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2
3368 */
ice_vc_ena_vlan_insertion_v2_msg(struct ice_vf * vf,u8 * msg)3369 static int ice_vc_ena_vlan_insertion_v2_msg(struct ice_vf *vf, u8 *msg)
3370 {
3371 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3372 struct virtchnl_vlan_supported_caps *insertion_support;
3373 struct virtchnl_vlan_setting *insertion_msg =
3374 (struct virtchnl_vlan_setting *)msg;
3375 u32 ethertype_setting;
3376 struct ice_vsi *vsi;
3377
3378 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3379 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3380 goto out;
3381 }
3382
3383 if (!ice_vc_isvalid_vsi_id(vf, insertion_msg->vport_id)) {
3384 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3385 goto out;
3386 }
3387
3388 vsi = ice_get_vf_vsi(vf);
3389 if (!vsi) {
3390 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3391 goto out;
3392 }
3393
3394 insertion_support = &vf->vlan_v2_caps.offloads.insertion_support;
3395 if (!ice_vc_valid_vlan_setting_msg(insertion_support, insertion_msg)) {
3396 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3397 goto out;
3398 }
3399
3400 ethertype_setting = insertion_msg->outer_ethertype_setting;
3401 if (ethertype_setting &&
3402 ice_vc_ena_vlan_offload(vsi, vsi->outer_vlan_ops.ena_insertion,
3403 ethertype_setting)) {
3404 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3405 goto out;
3406 }
3407
3408 ethertype_setting = insertion_msg->inner_ethertype_setting;
3409 if (ethertype_setting &&
3410 ice_vc_ena_vlan_offload(vsi, vsi->inner_vlan_ops.ena_insertion,
3411 ethertype_setting)) {
3412 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3413 goto out;
3414 }
3415
3416 out:
3417 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2,
3418 v_ret, NULL, 0);
3419 }
3420
3421 /**
3422 * ice_vc_dis_vlan_insertion_v2_msg
3423 * @vf: VF the message was received from
3424 * @msg: message received from the VF
3425 *
3426 * virthcnl handler for VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2
3427 */
ice_vc_dis_vlan_insertion_v2_msg(struct ice_vf * vf,u8 * msg)3428 static int ice_vc_dis_vlan_insertion_v2_msg(struct ice_vf *vf, u8 *msg)
3429 {
3430 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3431 struct virtchnl_vlan_supported_caps *insertion_support;
3432 struct virtchnl_vlan_setting *insertion_msg =
3433 (struct virtchnl_vlan_setting *)msg;
3434 u32 ethertype_setting;
3435 struct ice_vsi *vsi;
3436
3437 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3438 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3439 goto out;
3440 }
3441
3442 if (!ice_vc_isvalid_vsi_id(vf, insertion_msg->vport_id)) {
3443 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3444 goto out;
3445 }
3446
3447 vsi = ice_get_vf_vsi(vf);
3448 if (!vsi) {
3449 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3450 goto out;
3451 }
3452
3453 insertion_support = &vf->vlan_v2_caps.offloads.insertion_support;
3454 if (!ice_vc_valid_vlan_setting_msg(insertion_support, insertion_msg)) {
3455 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3456 goto out;
3457 }
3458
3459 ethertype_setting = insertion_msg->outer_ethertype_setting;
3460 if (ethertype_setting && vsi->outer_vlan_ops.dis_insertion(vsi)) {
3461 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3462 goto out;
3463 }
3464
3465 ethertype_setting = insertion_msg->inner_ethertype_setting;
3466 if (ethertype_setting && vsi->inner_vlan_ops.dis_insertion(vsi)) {
3467 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3468 goto out;
3469 }
3470
3471 out:
3472 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2,
3473 v_ret, NULL, 0);
3474 }
3475
3476 static const struct ice_virtchnl_ops ice_virtchnl_dflt_ops = {
3477 .get_ver_msg = ice_vc_get_ver_msg,
3478 .get_vf_res_msg = ice_vc_get_vf_res_msg,
3479 .reset_vf = ice_vc_reset_vf_msg,
3480 .add_mac_addr_msg = ice_vc_add_mac_addr_msg,
3481 .del_mac_addr_msg = ice_vc_del_mac_addr_msg,
3482 .cfg_qs_msg = ice_vc_cfg_qs_msg,
3483 .ena_qs_msg = ice_vc_ena_qs_msg,
3484 .dis_qs_msg = ice_vc_dis_qs_msg,
3485 .request_qs_msg = ice_vc_request_qs_msg,
3486 .cfg_irq_map_msg = ice_vc_cfg_irq_map_msg,
3487 .config_rss_key = ice_vc_config_rss_key,
3488 .config_rss_lut = ice_vc_config_rss_lut,
3489 .get_stats_msg = ice_vc_get_stats_msg,
3490 .cfg_promiscuous_mode_msg = ice_vc_cfg_promiscuous_mode_msg,
3491 .add_vlan_msg = ice_vc_add_vlan_msg,
3492 .remove_vlan_msg = ice_vc_remove_vlan_msg,
3493 .ena_vlan_stripping = ice_vc_ena_vlan_stripping,
3494 .dis_vlan_stripping = ice_vc_dis_vlan_stripping,
3495 .handle_rss_cfg_msg = ice_vc_handle_rss_cfg,
3496 .add_fdir_fltr_msg = ice_vc_add_fdir_fltr,
3497 .del_fdir_fltr_msg = ice_vc_del_fdir_fltr,
3498 .get_offload_vlan_v2_caps = ice_vc_get_offload_vlan_v2_caps,
3499 .add_vlan_v2_msg = ice_vc_add_vlan_v2_msg,
3500 .remove_vlan_v2_msg = ice_vc_remove_vlan_v2_msg,
3501 .ena_vlan_stripping_v2_msg = ice_vc_ena_vlan_stripping_v2_msg,
3502 .dis_vlan_stripping_v2_msg = ice_vc_dis_vlan_stripping_v2_msg,
3503 .ena_vlan_insertion_v2_msg = ice_vc_ena_vlan_insertion_v2_msg,
3504 .dis_vlan_insertion_v2_msg = ice_vc_dis_vlan_insertion_v2_msg,
3505 };
3506
3507 /**
3508 * ice_virtchnl_set_dflt_ops - Switch to default virtchnl ops
3509 * @vf: the VF to switch ops
3510 */
ice_virtchnl_set_dflt_ops(struct ice_vf * vf)3511 void ice_virtchnl_set_dflt_ops(struct ice_vf *vf)
3512 {
3513 vf->virtchnl_ops = &ice_virtchnl_dflt_ops;
3514 }
3515
3516 /**
3517 * ice_vc_repr_add_mac
3518 * @vf: pointer to VF
3519 * @msg: virtchannel message
3520 *
3521 * When port representors are created, we do not add MAC rule
3522 * to firmware, we store it so that PF could report same
3523 * MAC as VF.
3524 */
ice_vc_repr_add_mac(struct ice_vf * vf,u8 * msg)3525 static int ice_vc_repr_add_mac(struct ice_vf *vf, u8 *msg)
3526 {
3527 enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3528 struct virtchnl_ether_addr_list *al =
3529 (struct virtchnl_ether_addr_list *)msg;
3530 struct ice_vsi *vsi;
3531 struct ice_pf *pf;
3532 int i;
3533
3534 if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
3535 !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) {
3536 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3537 goto handle_mac_exit;
3538 }
3539
3540 pf = vf->pf;
3541
3542 vsi = ice_get_vf_vsi(vf);
3543 if (!vsi) {
3544 v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3545 goto handle_mac_exit;
3546 }
3547
3548 for (i = 0; i < al->num_elements; i++) {
3549 u8 *mac_addr = al->list[i].addr;
3550 int result;
3551
3552 if (!is_unicast_ether_addr(mac_addr) ||
3553 ether_addr_equal(mac_addr, vf->hw_lan_addr.addr))
3554 continue;
3555
3556 if (vf->pf_set_mac) {
3557 dev_err(ice_pf_to_dev(pf), "VF attempting to override administratively set MAC address\n");
3558 v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED;
3559 goto handle_mac_exit;
3560 }
3561
3562 result = ice_eswitch_add_vf_mac_rule(pf, vf, mac_addr);
3563 if (result) {
3564 dev_err(ice_pf_to_dev(pf), "Failed to add MAC %pM for VF %d\n, error %d\n",
3565 mac_addr, vf->vf_id, result);
3566 goto handle_mac_exit;
3567 }
3568
3569 ice_vfhw_mac_add(vf, &al->list[i]);
3570 vf->num_mac++;
3571 break;
3572 }
3573
3574 handle_mac_exit:
3575 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
3576 v_ret, NULL, 0);
3577 }
3578
3579 /**
3580 * ice_vc_repr_del_mac - response with success for deleting MAC
3581 * @vf: pointer to VF
3582 * @msg: virtchannel message
3583 *
3584 * Respond with success to not break normal VF flow.
3585 * For legacy VF driver try to update cached MAC address.
3586 */
3587 static int
ice_vc_repr_del_mac(struct ice_vf __always_unused * vf,u8 __always_unused * msg)3588 ice_vc_repr_del_mac(struct ice_vf __always_unused *vf, u8 __always_unused *msg)
3589 {
3590 struct virtchnl_ether_addr_list *al =
3591 (struct virtchnl_ether_addr_list *)msg;
3592
3593 ice_update_legacy_cached_mac(vf, &al->list[0]);
3594
3595 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR,
3596 VIRTCHNL_STATUS_SUCCESS, NULL, 0);
3597 }
3598
3599 static int
ice_vc_repr_cfg_promiscuous_mode(struct ice_vf * vf,u8 __always_unused * msg)3600 ice_vc_repr_cfg_promiscuous_mode(struct ice_vf *vf, u8 __always_unused *msg)
3601 {
3602 dev_dbg(ice_pf_to_dev(vf->pf),
3603 "Can't config promiscuous mode in switchdev mode for VF %d\n",
3604 vf->vf_id);
3605 return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
3606 VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
3607 NULL, 0);
3608 }
3609
3610 static const struct ice_virtchnl_ops ice_virtchnl_repr_ops = {
3611 .get_ver_msg = ice_vc_get_ver_msg,
3612 .get_vf_res_msg = ice_vc_get_vf_res_msg,
3613 .reset_vf = ice_vc_reset_vf_msg,
3614 .add_mac_addr_msg = ice_vc_repr_add_mac,
3615 .del_mac_addr_msg = ice_vc_repr_del_mac,
3616 .cfg_qs_msg = ice_vc_cfg_qs_msg,
3617 .ena_qs_msg = ice_vc_ena_qs_msg,
3618 .dis_qs_msg = ice_vc_dis_qs_msg,
3619 .request_qs_msg = ice_vc_request_qs_msg,
3620 .cfg_irq_map_msg = ice_vc_cfg_irq_map_msg,
3621 .config_rss_key = ice_vc_config_rss_key,
3622 .config_rss_lut = ice_vc_config_rss_lut,
3623 .get_stats_msg = ice_vc_get_stats_msg,
3624 .cfg_promiscuous_mode_msg = ice_vc_repr_cfg_promiscuous_mode,
3625 .add_vlan_msg = ice_vc_add_vlan_msg,
3626 .remove_vlan_msg = ice_vc_remove_vlan_msg,
3627 .ena_vlan_stripping = ice_vc_ena_vlan_stripping,
3628 .dis_vlan_stripping = ice_vc_dis_vlan_stripping,
3629 .handle_rss_cfg_msg = ice_vc_handle_rss_cfg,
3630 .add_fdir_fltr_msg = ice_vc_add_fdir_fltr,
3631 .del_fdir_fltr_msg = ice_vc_del_fdir_fltr,
3632 .get_offload_vlan_v2_caps = ice_vc_get_offload_vlan_v2_caps,
3633 .add_vlan_v2_msg = ice_vc_add_vlan_v2_msg,
3634 .remove_vlan_v2_msg = ice_vc_remove_vlan_v2_msg,
3635 .ena_vlan_stripping_v2_msg = ice_vc_ena_vlan_stripping_v2_msg,
3636 .dis_vlan_stripping_v2_msg = ice_vc_dis_vlan_stripping_v2_msg,
3637 .ena_vlan_insertion_v2_msg = ice_vc_ena_vlan_insertion_v2_msg,
3638 .dis_vlan_insertion_v2_msg = ice_vc_dis_vlan_insertion_v2_msg,
3639 };
3640
3641 /**
3642 * ice_virtchnl_set_repr_ops - Switch to representor virtchnl ops
3643 * @vf: the VF to switch ops
3644 */
ice_virtchnl_set_repr_ops(struct ice_vf * vf)3645 void ice_virtchnl_set_repr_ops(struct ice_vf *vf)
3646 {
3647 vf->virtchnl_ops = &ice_virtchnl_repr_ops;
3648 }
3649
3650 /**
3651 * ice_vc_process_vf_msg - Process request from VF
3652 * @pf: pointer to the PF structure
3653 * @event: pointer to the AQ event
3654 *
3655 * called from the common asq/arq handler to
3656 * process request from VF
3657 */
ice_vc_process_vf_msg(struct ice_pf * pf,struct ice_rq_event_info * event)3658 void ice_vc_process_vf_msg(struct ice_pf *pf, struct ice_rq_event_info *event)
3659 {
3660 u32 v_opcode = le32_to_cpu(event->desc.cookie_high);
3661 s16 vf_id = le16_to_cpu(event->desc.retval);
3662 const struct ice_virtchnl_ops *ops;
3663 u16 msglen = event->msg_len;
3664 u8 *msg = event->msg_buf;
3665 struct ice_vf *vf = NULL;
3666 struct device *dev;
3667 int err = 0;
3668
3669 dev = ice_pf_to_dev(pf);
3670
3671 vf = ice_get_vf_by_id(pf, vf_id);
3672 if (!vf) {
3673 dev_err(dev, "Unable to locate VF for message from VF ID %d, opcode %d, len %d\n",
3674 vf_id, v_opcode, msglen);
3675 return;
3676 }
3677
3678 mutex_lock(&vf->cfg_lock);
3679
3680 /* Check if VF is disabled. */
3681 if (test_bit(ICE_VF_STATE_DIS, vf->vf_states)) {
3682 err = -EPERM;
3683 goto error_handler;
3684 }
3685
3686 ops = vf->virtchnl_ops;
3687
3688 /* Perform basic checks on the msg */
3689 err = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
3690 if (err) {
3691 if (err == VIRTCHNL_STATUS_ERR_PARAM)
3692 err = -EPERM;
3693 else
3694 err = -EINVAL;
3695 }
3696
3697 error_handler:
3698 if (err) {
3699 ice_vc_send_msg_to_vf(vf, v_opcode, VIRTCHNL_STATUS_ERR_PARAM,
3700 NULL, 0);
3701 dev_err(dev, "Invalid message from VF %d, opcode %d, len %d, error %d\n",
3702 vf_id, v_opcode, msglen, err);
3703 goto finish;
3704 }
3705
3706 if (!ice_vc_is_opcode_allowed(vf, v_opcode)) {
3707 ice_vc_send_msg_to_vf(vf, v_opcode,
3708 VIRTCHNL_STATUS_ERR_NOT_SUPPORTED, NULL,
3709 0);
3710 goto finish;
3711 }
3712
3713 switch (v_opcode) {
3714 case VIRTCHNL_OP_VERSION:
3715 err = ops->get_ver_msg(vf, msg);
3716 break;
3717 case VIRTCHNL_OP_GET_VF_RESOURCES:
3718 err = ops->get_vf_res_msg(vf, msg);
3719 if (ice_vf_init_vlan_stripping(vf))
3720 dev_dbg(dev, "Failed to initialize VLAN stripping for VF %d\n",
3721 vf->vf_id);
3722 ice_vc_notify_vf_link_state(vf);
3723 break;
3724 case VIRTCHNL_OP_RESET_VF:
3725 ops->reset_vf(vf);
3726 break;
3727 case VIRTCHNL_OP_ADD_ETH_ADDR:
3728 err = ops->add_mac_addr_msg(vf, msg);
3729 break;
3730 case VIRTCHNL_OP_DEL_ETH_ADDR:
3731 err = ops->del_mac_addr_msg(vf, msg);
3732 break;
3733 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
3734 err = ops->cfg_qs_msg(vf, msg);
3735 break;
3736 case VIRTCHNL_OP_ENABLE_QUEUES:
3737 err = ops->ena_qs_msg(vf, msg);
3738 ice_vc_notify_vf_link_state(vf);
3739 break;
3740 case VIRTCHNL_OP_DISABLE_QUEUES:
3741 err = ops->dis_qs_msg(vf, msg);
3742 break;
3743 case VIRTCHNL_OP_REQUEST_QUEUES:
3744 err = ops->request_qs_msg(vf, msg);
3745 break;
3746 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
3747 err = ops->cfg_irq_map_msg(vf, msg);
3748 break;
3749 case VIRTCHNL_OP_CONFIG_RSS_KEY:
3750 err = ops->config_rss_key(vf, msg);
3751 break;
3752 case VIRTCHNL_OP_CONFIG_RSS_LUT:
3753 err = ops->config_rss_lut(vf, msg);
3754 break;
3755 case VIRTCHNL_OP_GET_STATS:
3756 err = ops->get_stats_msg(vf, msg);
3757 break;
3758 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
3759 err = ops->cfg_promiscuous_mode_msg(vf, msg);
3760 break;
3761 case VIRTCHNL_OP_ADD_VLAN:
3762 err = ops->add_vlan_msg(vf, msg);
3763 break;
3764 case VIRTCHNL_OP_DEL_VLAN:
3765 err = ops->remove_vlan_msg(vf, msg);
3766 break;
3767 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
3768 err = ops->ena_vlan_stripping(vf);
3769 break;
3770 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
3771 err = ops->dis_vlan_stripping(vf);
3772 break;
3773 case VIRTCHNL_OP_ADD_FDIR_FILTER:
3774 err = ops->add_fdir_fltr_msg(vf, msg);
3775 break;
3776 case VIRTCHNL_OP_DEL_FDIR_FILTER:
3777 err = ops->del_fdir_fltr_msg(vf, msg);
3778 break;
3779 case VIRTCHNL_OP_ADD_RSS_CFG:
3780 err = ops->handle_rss_cfg_msg(vf, msg, true);
3781 break;
3782 case VIRTCHNL_OP_DEL_RSS_CFG:
3783 err = ops->handle_rss_cfg_msg(vf, msg, false);
3784 break;
3785 case VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS:
3786 err = ops->get_offload_vlan_v2_caps(vf);
3787 break;
3788 case VIRTCHNL_OP_ADD_VLAN_V2:
3789 err = ops->add_vlan_v2_msg(vf, msg);
3790 break;
3791 case VIRTCHNL_OP_DEL_VLAN_V2:
3792 err = ops->remove_vlan_v2_msg(vf, msg);
3793 break;
3794 case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2:
3795 err = ops->ena_vlan_stripping_v2_msg(vf, msg);
3796 break;
3797 case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2:
3798 err = ops->dis_vlan_stripping_v2_msg(vf, msg);
3799 break;
3800 case VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2:
3801 err = ops->ena_vlan_insertion_v2_msg(vf, msg);
3802 break;
3803 case VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2:
3804 err = ops->dis_vlan_insertion_v2_msg(vf, msg);
3805 break;
3806 case VIRTCHNL_OP_UNKNOWN:
3807 default:
3808 dev_err(dev, "Unsupported opcode %d from VF %d\n", v_opcode,
3809 vf_id);
3810 err = ice_vc_send_msg_to_vf(vf, v_opcode,
3811 VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
3812 NULL, 0);
3813 break;
3814 }
3815 if (err) {
3816 /* Helper function cares less about error return values here
3817 * as it is busy with pending work.
3818 */
3819 dev_info(dev, "PF failed to honor VF %d, opcode %d, error %d\n",
3820 vf_id, v_opcode, err);
3821 }
3822
3823 finish:
3824 mutex_unlock(&vf->cfg_lock);
3825 ice_put_vf(vf);
3826 }
3827
