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
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
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  */
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  */
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  */
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
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  */
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  */
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
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  */
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_RX_FLEX_DESC)
466 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC;
467 
468 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_FDIR_PF)
469 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_FDIR_PF;
470 
471 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2)
472 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RSS_PCTYPE_V2;
473 
474 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP)
475 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP;
476 
477 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM)
478 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ENCAP_CSUM;
479 
480 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_POLLING)
481 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_RX_POLLING;
482 
483 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_WB_ON_ITR)
484 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_WB_ON_ITR;
485 
486 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_REQ_QUEUES)
487 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_REQ_QUEUES;
488 
489 	if (vf->driver_caps & VIRTCHNL_VF_CAP_ADV_LINK_SPEED)
490 		vfres->vf_cap_flags |= VIRTCHNL_VF_CAP_ADV_LINK_SPEED;
491 
492 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF)
493 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF;
494 
495 	if (vf->driver_caps & VIRTCHNL_VF_OFFLOAD_USO)
496 		vfres->vf_cap_flags |= VIRTCHNL_VF_OFFLOAD_USO;
497 
498 	vfres->num_vsis = 1;
499 	/* Tx and Rx queue are equal for VF */
500 	vfres->num_queue_pairs = vsi->num_txq;
501 	vfres->max_vectors = vf->pf->vfs.num_msix_per;
502 	vfres->rss_key_size = ICE_VSIQF_HKEY_ARRAY_SIZE;
503 	vfres->rss_lut_size = ICE_VSIQF_HLUT_ARRAY_SIZE;
504 	vfres->max_mtu = ice_vc_get_max_frame_size(vf);
505 
506 	vfres->vsi_res[0].vsi_id = vf->lan_vsi_num;
507 	vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
508 	vfres->vsi_res[0].num_queue_pairs = vsi->num_txq;
509 	ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
510 			vf->hw_lan_addr);
511 
512 	/* match guest capabilities */
513 	vf->driver_caps = vfres->vf_cap_flags;
514 
515 	ice_vc_set_caps_allowlist(vf);
516 	ice_vc_set_working_allowlist(vf);
517 
518 	set_bit(ICE_VF_STATE_ACTIVE, vf->vf_states);
519 
520 err:
521 	/* send the response back to the VF */
522 	ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_VF_RESOURCES, v_ret,
523 				    (u8 *)vfres, len);
524 
525 	kfree(vfres);
526 	return ret;
527 }
528 
529 /**
530  * ice_vc_reset_vf_msg
531  * @vf: pointer to the VF info
532  *
533  * called from the VF to reset itself,
534  * unlike other virtchnl messages, PF driver
535  * doesn't send the response back to the VF
536  */
537 static void ice_vc_reset_vf_msg(struct ice_vf *vf)
538 {
539 	if (test_bit(ICE_VF_STATE_INIT, vf->vf_states))
540 		ice_reset_vf(vf, 0);
541 }
542 
543 /**
544  * ice_vc_isvalid_vsi_id
545  * @vf: pointer to the VF info
546  * @vsi_id: VF relative VSI ID
547  *
548  * check for the valid VSI ID
549  */
550 bool ice_vc_isvalid_vsi_id(struct ice_vf *vf, u16 vsi_id)
551 {
552 	struct ice_pf *pf = vf->pf;
553 	struct ice_vsi *vsi;
554 
555 	vsi = ice_find_vsi(pf, vsi_id);
556 
557 	return (vsi && (vsi->vf == vf));
558 }
559 
560 /**
561  * ice_vc_isvalid_q_id
562  * @vf: pointer to the VF info
563  * @vsi_id: VSI ID
564  * @qid: VSI relative queue ID
565  *
566  * check for the valid queue ID
567  */
568 static bool ice_vc_isvalid_q_id(struct ice_vf *vf, u16 vsi_id, u8 qid)
569 {
570 	struct ice_vsi *vsi = ice_find_vsi(vf->pf, vsi_id);
571 	/* allocated Tx and Rx queues should be always equal for VF VSI */
572 	return (vsi && (qid < vsi->alloc_txq));
573 }
574 
575 /**
576  * ice_vc_isvalid_ring_len
577  * @ring_len: length of ring
578  *
579  * check for the valid ring count, should be multiple of ICE_REQ_DESC_MULTIPLE
580  * or zero
581  */
582 static bool ice_vc_isvalid_ring_len(u16 ring_len)
583 {
584 	return ring_len == 0 ||
585 	       (ring_len >= ICE_MIN_NUM_DESC &&
586 		ring_len <= ICE_MAX_NUM_DESC &&
587 		!(ring_len % ICE_REQ_DESC_MULTIPLE));
588 }
589 
590 /**
591  * ice_vc_validate_pattern
592  * @vf: pointer to the VF info
593  * @proto: virtchnl protocol headers
594  *
595  * validate the pattern is supported or not.
596  *
597  * Return: true on success, false on error.
598  */
599 bool
600 ice_vc_validate_pattern(struct ice_vf *vf, struct virtchnl_proto_hdrs *proto)
601 {
602 	bool is_ipv4 = false;
603 	bool is_ipv6 = false;
604 	bool is_udp = false;
605 	u16 ptype = -1;
606 	int i = 0;
607 
608 	while (i < proto->count &&
609 	       proto->proto_hdr[i].type != VIRTCHNL_PROTO_HDR_NONE) {
610 		switch (proto->proto_hdr[i].type) {
611 		case VIRTCHNL_PROTO_HDR_ETH:
612 			ptype = ICE_PTYPE_MAC_PAY;
613 			break;
614 		case VIRTCHNL_PROTO_HDR_IPV4:
615 			ptype = ICE_PTYPE_IPV4_PAY;
616 			is_ipv4 = true;
617 			break;
618 		case VIRTCHNL_PROTO_HDR_IPV6:
619 			ptype = ICE_PTYPE_IPV6_PAY;
620 			is_ipv6 = true;
621 			break;
622 		case VIRTCHNL_PROTO_HDR_UDP:
623 			if (is_ipv4)
624 				ptype = ICE_PTYPE_IPV4_UDP_PAY;
625 			else if (is_ipv6)
626 				ptype = ICE_PTYPE_IPV6_UDP_PAY;
627 			is_udp = true;
628 			break;
629 		case VIRTCHNL_PROTO_HDR_TCP:
630 			if (is_ipv4)
631 				ptype = ICE_PTYPE_IPV4_TCP_PAY;
632 			else if (is_ipv6)
633 				ptype = ICE_PTYPE_IPV6_TCP_PAY;
634 			break;
635 		case VIRTCHNL_PROTO_HDR_SCTP:
636 			if (is_ipv4)
637 				ptype = ICE_PTYPE_IPV4_SCTP_PAY;
638 			else if (is_ipv6)
639 				ptype = ICE_PTYPE_IPV6_SCTP_PAY;
640 			break;
641 		case VIRTCHNL_PROTO_HDR_GTPU_IP:
642 		case VIRTCHNL_PROTO_HDR_GTPU_EH:
643 			if (is_ipv4)
644 				ptype = ICE_MAC_IPV4_GTPU;
645 			else if (is_ipv6)
646 				ptype = ICE_MAC_IPV6_GTPU;
647 			goto out;
648 		case VIRTCHNL_PROTO_HDR_L2TPV3:
649 			if (is_ipv4)
650 				ptype = ICE_MAC_IPV4_L2TPV3;
651 			else if (is_ipv6)
652 				ptype = ICE_MAC_IPV6_L2TPV3;
653 			goto out;
654 		case VIRTCHNL_PROTO_HDR_ESP:
655 			if (is_ipv4)
656 				ptype = is_udp ? ICE_MAC_IPV4_NAT_T_ESP :
657 						ICE_MAC_IPV4_ESP;
658 			else if (is_ipv6)
659 				ptype = is_udp ? ICE_MAC_IPV6_NAT_T_ESP :
660 						ICE_MAC_IPV6_ESP;
661 			goto out;
662 		case VIRTCHNL_PROTO_HDR_AH:
663 			if (is_ipv4)
664 				ptype = ICE_MAC_IPV4_AH;
665 			else if (is_ipv6)
666 				ptype = ICE_MAC_IPV6_AH;
667 			goto out;
668 		case VIRTCHNL_PROTO_HDR_PFCP:
669 			if (is_ipv4)
670 				ptype = ICE_MAC_IPV4_PFCP_SESSION;
671 			else if (is_ipv6)
672 				ptype = ICE_MAC_IPV6_PFCP_SESSION;
673 			goto out;
674 		default:
675 			break;
676 		}
677 		i++;
678 	}
679 
680 out:
681 	return ice_hw_ptype_ena(&vf->pf->hw, ptype);
682 }
683 
684 /**
685  * ice_vc_parse_rss_cfg - parses hash fields and headers from
686  * a specific virtchnl RSS cfg
687  * @hw: pointer to the hardware
688  * @rss_cfg: pointer to the virtchnl RSS cfg
689  * @addl_hdrs: pointer to the protocol header fields (ICE_FLOW_SEG_HDR_*)
690  * to configure
691  * @hash_flds: pointer to the hash bit fields (ICE_FLOW_HASH_*) to configure
692  *
693  * Return true if all the protocol header and hash fields in the RSS cfg could
694  * be parsed, else return false
695  *
696  * This function parses the virtchnl RSS cfg to be the intended
697  * hash fields and the intended header for RSS configuration
698  */
699 static bool
700 ice_vc_parse_rss_cfg(struct ice_hw *hw, struct virtchnl_rss_cfg *rss_cfg,
701 		     u32 *addl_hdrs, u64 *hash_flds)
702 {
703 	const struct ice_vc_hash_field_match_type *hf_list;
704 	const struct ice_vc_hdr_match_type *hdr_list;
705 	int i, hf_list_len, hdr_list_len;
706 
707 	hf_list = ice_vc_hash_field_list;
708 	hf_list_len = ARRAY_SIZE(ice_vc_hash_field_list);
709 	hdr_list = ice_vc_hdr_list;
710 	hdr_list_len = ARRAY_SIZE(ice_vc_hdr_list);
711 
712 	for (i = 0; i < rss_cfg->proto_hdrs.count; i++) {
713 		struct virtchnl_proto_hdr *proto_hdr =
714 					&rss_cfg->proto_hdrs.proto_hdr[i];
715 		bool hdr_found = false;
716 		int j;
717 
718 		/* Find matched ice headers according to virtchnl headers. */
719 		for (j = 0; j < hdr_list_len; j++) {
720 			struct ice_vc_hdr_match_type hdr_map = hdr_list[j];
721 
722 			if (proto_hdr->type == hdr_map.vc_hdr) {
723 				*addl_hdrs |= hdr_map.ice_hdr;
724 				hdr_found = true;
725 			}
726 		}
727 
728 		if (!hdr_found)
729 			return false;
730 
731 		/* Find matched ice hash fields according to
732 		 * virtchnl hash fields.
733 		 */
734 		for (j = 0; j < hf_list_len; j++) {
735 			struct ice_vc_hash_field_match_type hf_map = hf_list[j];
736 
737 			if (proto_hdr->type == hf_map.vc_hdr &&
738 			    proto_hdr->field_selector == hf_map.vc_hash_field) {
739 				*hash_flds |= hf_map.ice_hash_field;
740 				break;
741 			}
742 		}
743 	}
744 
745 	return true;
746 }
747 
748 /**
749  * ice_vf_adv_rss_offload_ena - determine if capabilities support advanced
750  * RSS offloads
751  * @caps: VF driver negotiated capabilities
752  *
753  * Return true if VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF capability is set,
754  * else return false
755  */
756 static bool ice_vf_adv_rss_offload_ena(u32 caps)
757 {
758 	return !!(caps & VIRTCHNL_VF_OFFLOAD_ADV_RSS_PF);
759 }
760 
761 /**
762  * ice_vc_handle_rss_cfg
763  * @vf: pointer to the VF info
764  * @msg: pointer to the message buffer
765  * @add: add a RSS config if true, otherwise delete a RSS config
766  *
767  * This function adds/deletes a RSS config
768  */
769 static int ice_vc_handle_rss_cfg(struct ice_vf *vf, u8 *msg, bool add)
770 {
771 	u32 v_opcode = add ? VIRTCHNL_OP_ADD_RSS_CFG : VIRTCHNL_OP_DEL_RSS_CFG;
772 	struct virtchnl_rss_cfg *rss_cfg = (struct virtchnl_rss_cfg *)msg;
773 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
774 	struct device *dev = ice_pf_to_dev(vf->pf);
775 	struct ice_hw *hw = &vf->pf->hw;
776 	struct ice_vsi *vsi;
777 
778 	if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
779 		dev_dbg(dev, "VF %d attempting to configure RSS, but RSS is not supported by the PF\n",
780 			vf->vf_id);
781 		v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED;
782 		goto error_param;
783 	}
784 
785 	if (!ice_vf_adv_rss_offload_ena(vf->driver_caps)) {
786 		dev_dbg(dev, "VF %d attempting to configure RSS, but Advanced RSS offload is not supported\n",
787 			vf->vf_id);
788 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
789 		goto error_param;
790 	}
791 
792 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
793 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
794 		goto error_param;
795 	}
796 
797 	if (rss_cfg->proto_hdrs.count > VIRTCHNL_MAX_NUM_PROTO_HDRS ||
798 	    rss_cfg->rss_algorithm < VIRTCHNL_RSS_ALG_TOEPLITZ_ASYMMETRIC ||
799 	    rss_cfg->rss_algorithm > VIRTCHNL_RSS_ALG_XOR_SYMMETRIC) {
800 		dev_dbg(dev, "VF %d attempting to configure RSS, but RSS configuration is not valid\n",
801 			vf->vf_id);
802 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
803 		goto error_param;
804 	}
805 
806 	vsi = ice_get_vf_vsi(vf);
807 	if (!vsi) {
808 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
809 		goto error_param;
810 	}
811 
812 	if (!ice_vc_validate_pattern(vf, &rss_cfg->proto_hdrs)) {
813 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
814 		goto error_param;
815 	}
816 
817 	if (rss_cfg->rss_algorithm == VIRTCHNL_RSS_ALG_R_ASYMMETRIC) {
818 		struct ice_vsi_ctx *ctx;
819 		u8 lut_type, hash_type;
820 		int status;
821 
822 		lut_type = ICE_AQ_VSI_Q_OPT_RSS_LUT_VSI;
823 		hash_type = add ? ICE_AQ_VSI_Q_OPT_RSS_XOR :
824 				ICE_AQ_VSI_Q_OPT_RSS_TPLZ;
825 
826 		ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
827 		if (!ctx) {
828 			v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
829 			goto error_param;
830 		}
831 
832 		ctx->info.q_opt_rss = ((lut_type <<
833 					ICE_AQ_VSI_Q_OPT_RSS_LUT_S) &
834 				       ICE_AQ_VSI_Q_OPT_RSS_LUT_M) |
835 				       (hash_type &
836 					ICE_AQ_VSI_Q_OPT_RSS_HASH_M);
837 
838 		/* Preserve existing queueing option setting */
839 		ctx->info.q_opt_rss |= (vsi->info.q_opt_rss &
840 					  ICE_AQ_VSI_Q_OPT_RSS_GBL_LUT_M);
841 		ctx->info.q_opt_tc = vsi->info.q_opt_tc;
842 		ctx->info.q_opt_flags = vsi->info.q_opt_rss;
843 
844 		ctx->info.valid_sections =
845 				cpu_to_le16(ICE_AQ_VSI_PROP_Q_OPT_VALID);
846 
847 		status = ice_update_vsi(hw, vsi->idx, ctx, NULL);
848 		if (status) {
849 			dev_err(dev, "update VSI for RSS failed, err %d aq_err %s\n",
850 				status, ice_aq_str(hw->adminq.sq_last_status));
851 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
852 		} else {
853 			vsi->info.q_opt_rss = ctx->info.q_opt_rss;
854 		}
855 
856 		kfree(ctx);
857 	} else {
858 		u32 addl_hdrs = ICE_FLOW_SEG_HDR_NONE;
859 		u64 hash_flds = ICE_HASH_INVALID;
860 
861 		if (!ice_vc_parse_rss_cfg(hw, rss_cfg, &addl_hdrs,
862 					  &hash_flds)) {
863 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
864 			goto error_param;
865 		}
866 
867 		if (add) {
868 			if (ice_add_rss_cfg(hw, vsi->idx, hash_flds,
869 					    addl_hdrs)) {
870 				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
871 				dev_err(dev, "ice_add_rss_cfg failed for vsi = %d, v_ret = %d\n",
872 					vsi->vsi_num, v_ret);
873 			}
874 		} else {
875 			int status;
876 
877 			status = ice_rem_rss_cfg(hw, vsi->idx, hash_flds,
878 						 addl_hdrs);
879 			/* We just ignore -ENOENT, because if two configurations
880 			 * share the same profile remove one of them actually
881 			 * removes both, since the profile is deleted.
882 			 */
883 			if (status && status != -ENOENT) {
884 				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
885 				dev_err(dev, "ice_rem_rss_cfg failed for VF ID:%d, error:%d\n",
886 					vf->vf_id, status);
887 			}
888 		}
889 	}
890 
891 error_param:
892 	return ice_vc_send_msg_to_vf(vf, v_opcode, v_ret, NULL, 0);
893 }
894 
895 /**
896  * ice_vc_config_rss_key
897  * @vf: pointer to the VF info
898  * @msg: pointer to the msg buffer
899  *
900  * Configure the VF's RSS key
901  */
902 static int ice_vc_config_rss_key(struct ice_vf *vf, u8 *msg)
903 {
904 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
905 	struct virtchnl_rss_key *vrk =
906 		(struct virtchnl_rss_key *)msg;
907 	struct ice_vsi *vsi;
908 
909 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
910 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
911 		goto error_param;
912 	}
913 
914 	if (!ice_vc_isvalid_vsi_id(vf, vrk->vsi_id)) {
915 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
916 		goto error_param;
917 	}
918 
919 	if (vrk->key_len != ICE_VSIQF_HKEY_ARRAY_SIZE) {
920 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
921 		goto error_param;
922 	}
923 
924 	if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
925 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
926 		goto error_param;
927 	}
928 
929 	vsi = ice_get_vf_vsi(vf);
930 	if (!vsi) {
931 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
932 		goto error_param;
933 	}
934 
935 	if (ice_set_rss_key(vsi, vrk->key))
936 		v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
937 error_param:
938 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_KEY, v_ret,
939 				     NULL, 0);
940 }
941 
942 /**
943  * ice_vc_config_rss_lut
944  * @vf: pointer to the VF info
945  * @msg: pointer to the msg buffer
946  *
947  * Configure the VF's RSS LUT
948  */
949 static int ice_vc_config_rss_lut(struct ice_vf *vf, u8 *msg)
950 {
951 	struct virtchnl_rss_lut *vrl = (struct virtchnl_rss_lut *)msg;
952 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
953 	struct ice_vsi *vsi;
954 
955 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
956 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
957 		goto error_param;
958 	}
959 
960 	if (!ice_vc_isvalid_vsi_id(vf, vrl->vsi_id)) {
961 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
962 		goto error_param;
963 	}
964 
965 	if (vrl->lut_entries != ICE_VSIQF_HLUT_ARRAY_SIZE) {
966 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
967 		goto error_param;
968 	}
969 
970 	if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
971 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
972 		goto error_param;
973 	}
974 
975 	vsi = ice_get_vf_vsi(vf);
976 	if (!vsi) {
977 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
978 		goto error_param;
979 	}
980 
981 	if (ice_set_rss_lut(vsi, vrl->lut, ICE_VSIQF_HLUT_ARRAY_SIZE))
982 		v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
983 error_param:
984 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_RSS_LUT, v_ret,
985 				     NULL, 0);
986 }
987 
988 /**
989  * ice_vc_cfg_promiscuous_mode_msg
990  * @vf: pointer to the VF info
991  * @msg: pointer to the msg buffer
992  *
993  * called from the VF to configure VF VSIs promiscuous mode
994  */
995 static int ice_vc_cfg_promiscuous_mode_msg(struct ice_vf *vf, u8 *msg)
996 {
997 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
998 	bool rm_promisc, alluni = false, allmulti = false;
999 	struct virtchnl_promisc_info *info =
1000 	    (struct virtchnl_promisc_info *)msg;
1001 	struct ice_vsi_vlan_ops *vlan_ops;
1002 	int mcast_err = 0, ucast_err = 0;
1003 	struct ice_pf *pf = vf->pf;
1004 	struct ice_vsi *vsi;
1005 	u8 mcast_m, ucast_m;
1006 	struct device *dev;
1007 	int ret = 0;
1008 
1009 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
1010 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1011 		goto error_param;
1012 	}
1013 
1014 	if (!ice_vc_isvalid_vsi_id(vf, info->vsi_id)) {
1015 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1016 		goto error_param;
1017 	}
1018 
1019 	vsi = ice_get_vf_vsi(vf);
1020 	if (!vsi) {
1021 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1022 		goto error_param;
1023 	}
1024 
1025 	dev = ice_pf_to_dev(pf);
1026 	if (!ice_is_vf_trusted(vf)) {
1027 		dev_err(dev, "Unprivileged VF %d is attempting to configure promiscuous mode\n",
1028 			vf->vf_id);
1029 		/* Leave v_ret alone, lie to the VF on purpose. */
1030 		goto error_param;
1031 	}
1032 
1033 	if (info->flags & FLAG_VF_UNICAST_PROMISC)
1034 		alluni = true;
1035 
1036 	if (info->flags & FLAG_VF_MULTICAST_PROMISC)
1037 		allmulti = true;
1038 
1039 	rm_promisc = !allmulti && !alluni;
1040 
1041 	vlan_ops = ice_get_compat_vsi_vlan_ops(vsi);
1042 	if (rm_promisc)
1043 		ret = vlan_ops->ena_rx_filtering(vsi);
1044 	else
1045 		ret = vlan_ops->dis_rx_filtering(vsi);
1046 	if (ret) {
1047 		dev_err(dev, "Failed to configure VLAN pruning in promiscuous mode\n");
1048 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1049 		goto error_param;
1050 	}
1051 
1052 	ice_vf_get_promisc_masks(vf, vsi, &ucast_m, &mcast_m);
1053 
1054 	if (!test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, pf->flags)) {
1055 		if (alluni) {
1056 			/* in this case we're turning on promiscuous mode */
1057 			ret = ice_set_dflt_vsi(vsi);
1058 		} else {
1059 			/* in this case we're turning off promiscuous mode */
1060 			if (ice_is_dflt_vsi_in_use(vsi->port_info))
1061 				ret = ice_clear_dflt_vsi(vsi);
1062 		}
1063 
1064 		/* in this case we're turning on/off only
1065 		 * allmulticast
1066 		 */
1067 		if (allmulti)
1068 			mcast_err = ice_vf_set_vsi_promisc(vf, vsi, mcast_m);
1069 		else
1070 			mcast_err = ice_vf_clear_vsi_promisc(vf, vsi, mcast_m);
1071 
1072 		if (ret) {
1073 			dev_err(dev, "Turning on/off promiscuous mode for VF %d failed, error: %d\n",
1074 				vf->vf_id, ret);
1075 			v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
1076 			goto error_param;
1077 		}
1078 	} else {
1079 		if (alluni)
1080 			ucast_err = ice_vf_set_vsi_promisc(vf, vsi, ucast_m);
1081 		else
1082 			ucast_err = ice_vf_clear_vsi_promisc(vf, vsi, ucast_m);
1083 
1084 		if (allmulti)
1085 			mcast_err = ice_vf_set_vsi_promisc(vf, vsi, mcast_m);
1086 		else
1087 			mcast_err = ice_vf_clear_vsi_promisc(vf, vsi, mcast_m);
1088 
1089 		if (ucast_err || mcast_err)
1090 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1091 	}
1092 
1093 	if (!mcast_err) {
1094 		if (allmulti &&
1095 		    !test_and_set_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states))
1096 			dev_info(dev, "VF %u successfully set multicast promiscuous mode\n",
1097 				 vf->vf_id);
1098 		else if (!allmulti &&
1099 			 test_and_clear_bit(ICE_VF_STATE_MC_PROMISC,
1100 					    vf->vf_states))
1101 			dev_info(dev, "VF %u successfully unset multicast promiscuous mode\n",
1102 				 vf->vf_id);
1103 	} else {
1104 		dev_err(dev, "Error while modifying multicast promiscuous mode for VF %u, error: %d\n",
1105 			vf->vf_id, mcast_err);
1106 	}
1107 
1108 	if (!ucast_err) {
1109 		if (alluni &&
1110 		    !test_and_set_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states))
1111 			dev_info(dev, "VF %u successfully set unicast promiscuous mode\n",
1112 				 vf->vf_id);
1113 		else if (!alluni &&
1114 			 test_and_clear_bit(ICE_VF_STATE_UC_PROMISC,
1115 					    vf->vf_states))
1116 			dev_info(dev, "VF %u successfully unset unicast promiscuous mode\n",
1117 				 vf->vf_id);
1118 	} else {
1119 		dev_err(dev, "Error while modifying unicast promiscuous mode for VF %u, error: %d\n",
1120 			vf->vf_id, ucast_err);
1121 	}
1122 
1123 error_param:
1124 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
1125 				     v_ret, NULL, 0);
1126 }
1127 
1128 /**
1129  * ice_vc_get_stats_msg
1130  * @vf: pointer to the VF info
1131  * @msg: pointer to the msg buffer
1132  *
1133  * called from the VF to get VSI stats
1134  */
1135 static int ice_vc_get_stats_msg(struct ice_vf *vf, u8 *msg)
1136 {
1137 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1138 	struct virtchnl_queue_select *vqs =
1139 		(struct virtchnl_queue_select *)msg;
1140 	struct ice_eth_stats stats = { 0 };
1141 	struct ice_vsi *vsi;
1142 
1143 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
1144 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1145 		goto error_param;
1146 	}
1147 
1148 	if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1149 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1150 		goto error_param;
1151 	}
1152 
1153 	vsi = ice_get_vf_vsi(vf);
1154 	if (!vsi) {
1155 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1156 		goto error_param;
1157 	}
1158 
1159 	ice_update_eth_stats(vsi);
1160 
1161 	stats = vsi->eth_stats;
1162 
1163 error_param:
1164 	/* send the response to the VF */
1165 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_STATS, v_ret,
1166 				     (u8 *)&stats, sizeof(stats));
1167 }
1168 
1169 /**
1170  * ice_vc_validate_vqs_bitmaps - validate Rx/Tx queue bitmaps from VIRTCHNL
1171  * @vqs: virtchnl_queue_select structure containing bitmaps to validate
1172  *
1173  * Return true on successful validation, else false
1174  */
1175 static bool ice_vc_validate_vqs_bitmaps(struct virtchnl_queue_select *vqs)
1176 {
1177 	if ((!vqs->rx_queues && !vqs->tx_queues) ||
1178 	    vqs->rx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF) ||
1179 	    vqs->tx_queues >= BIT(ICE_MAX_RSS_QS_PER_VF))
1180 		return false;
1181 
1182 	return true;
1183 }
1184 
1185 /**
1186  * ice_vf_ena_txq_interrupt - enable Tx queue interrupt via QINT_TQCTL
1187  * @vsi: VSI of the VF to configure
1188  * @q_idx: VF queue index used to determine the queue in the PF's space
1189  */
1190 static void ice_vf_ena_txq_interrupt(struct ice_vsi *vsi, u32 q_idx)
1191 {
1192 	struct ice_hw *hw = &vsi->back->hw;
1193 	u32 pfq = vsi->txq_map[q_idx];
1194 	u32 reg;
1195 
1196 	reg = rd32(hw, QINT_TQCTL(pfq));
1197 
1198 	/* MSI-X index 0 in the VF's space is always for the OICR, which means
1199 	 * this is most likely a poll mode VF driver, so don't enable an
1200 	 * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP
1201 	 */
1202 	if (!(reg & QINT_TQCTL_MSIX_INDX_M))
1203 		return;
1204 
1205 	wr32(hw, QINT_TQCTL(pfq), reg | QINT_TQCTL_CAUSE_ENA_M);
1206 }
1207 
1208 /**
1209  * ice_vf_ena_rxq_interrupt - enable Tx queue interrupt via QINT_RQCTL
1210  * @vsi: VSI of the VF to configure
1211  * @q_idx: VF queue index used to determine the queue in the PF's space
1212  */
1213 static void ice_vf_ena_rxq_interrupt(struct ice_vsi *vsi, u32 q_idx)
1214 {
1215 	struct ice_hw *hw = &vsi->back->hw;
1216 	u32 pfq = vsi->rxq_map[q_idx];
1217 	u32 reg;
1218 
1219 	reg = rd32(hw, QINT_RQCTL(pfq));
1220 
1221 	/* MSI-X index 0 in the VF's space is always for the OICR, which means
1222 	 * this is most likely a poll mode VF driver, so don't enable an
1223 	 * interrupt that was never configured via VIRTCHNL_OP_CONFIG_IRQ_MAP
1224 	 */
1225 	if (!(reg & QINT_RQCTL_MSIX_INDX_M))
1226 		return;
1227 
1228 	wr32(hw, QINT_RQCTL(pfq), reg | QINT_RQCTL_CAUSE_ENA_M);
1229 }
1230 
1231 /**
1232  * ice_vc_ena_qs_msg
1233  * @vf: pointer to the VF info
1234  * @msg: pointer to the msg buffer
1235  *
1236  * called from the VF to enable all or specific queue(s)
1237  */
1238 static int ice_vc_ena_qs_msg(struct ice_vf *vf, u8 *msg)
1239 {
1240 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1241 	struct virtchnl_queue_select *vqs =
1242 	    (struct virtchnl_queue_select *)msg;
1243 	struct ice_vsi *vsi;
1244 	unsigned long q_map;
1245 	u16 vf_q_id;
1246 
1247 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
1248 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1249 		goto error_param;
1250 	}
1251 
1252 	if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1253 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1254 		goto error_param;
1255 	}
1256 
1257 	if (!ice_vc_validate_vqs_bitmaps(vqs)) {
1258 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1259 		goto error_param;
1260 	}
1261 
1262 	vsi = ice_get_vf_vsi(vf);
1263 	if (!vsi) {
1264 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1265 		goto error_param;
1266 	}
1267 
1268 	/* Enable only Rx rings, Tx rings were enabled by the FW when the
1269 	 * Tx queue group list was configured and the context bits were
1270 	 * programmed using ice_vsi_cfg_txqs
1271 	 */
1272 	q_map = vqs->rx_queues;
1273 	for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
1274 		if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
1275 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1276 			goto error_param;
1277 		}
1278 
1279 		/* Skip queue if enabled */
1280 		if (test_bit(vf_q_id, vf->rxq_ena))
1281 			continue;
1282 
1283 		if (ice_vsi_ctrl_one_rx_ring(vsi, true, vf_q_id, true)) {
1284 			dev_err(ice_pf_to_dev(vsi->back), "Failed to enable Rx ring %d on VSI %d\n",
1285 				vf_q_id, vsi->vsi_num);
1286 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1287 			goto error_param;
1288 		}
1289 
1290 		ice_vf_ena_rxq_interrupt(vsi, vf_q_id);
1291 		set_bit(vf_q_id, vf->rxq_ena);
1292 	}
1293 
1294 	q_map = vqs->tx_queues;
1295 	for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
1296 		if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
1297 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1298 			goto error_param;
1299 		}
1300 
1301 		/* Skip queue if enabled */
1302 		if (test_bit(vf_q_id, vf->txq_ena))
1303 			continue;
1304 
1305 		ice_vf_ena_txq_interrupt(vsi, vf_q_id);
1306 		set_bit(vf_q_id, vf->txq_ena);
1307 	}
1308 
1309 	/* Set flag to indicate that queues are enabled */
1310 	if (v_ret == VIRTCHNL_STATUS_SUCCESS)
1311 		set_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);
1312 
1313 error_param:
1314 	/* send the response to the VF */
1315 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_QUEUES, v_ret,
1316 				     NULL, 0);
1317 }
1318 
1319 /**
1320  * ice_vf_vsi_dis_single_txq - disable a single Tx queue
1321  * @vf: VF to disable queue for
1322  * @vsi: VSI for the VF
1323  * @q_id: VF relative (0-based) queue ID
1324  *
1325  * Attempt to disable the Tx queue passed in. If the Tx queue was successfully
1326  * disabled then clear q_id bit in the enabled queues bitmap and return
1327  * success. Otherwise return error.
1328  */
1329 static int
1330 ice_vf_vsi_dis_single_txq(struct ice_vf *vf, struct ice_vsi *vsi, u16 q_id)
1331 {
1332 	struct ice_txq_meta txq_meta = { 0 };
1333 	struct ice_tx_ring *ring;
1334 	int err;
1335 
1336 	if (!test_bit(q_id, vf->txq_ena))
1337 		dev_dbg(ice_pf_to_dev(vsi->back), "Queue %u on VSI %u is not enabled, but stopping it anyway\n",
1338 			q_id, vsi->vsi_num);
1339 
1340 	ring = vsi->tx_rings[q_id];
1341 	if (!ring)
1342 		return -EINVAL;
1343 
1344 	ice_fill_txq_meta(vsi, ring, &txq_meta);
1345 
1346 	err = ice_vsi_stop_tx_ring(vsi, ICE_NO_RESET, vf->vf_id, ring, &txq_meta);
1347 	if (err) {
1348 		dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Tx ring %d on VSI %d\n",
1349 			q_id, vsi->vsi_num);
1350 		return err;
1351 	}
1352 
1353 	/* Clear enabled queues flag */
1354 	clear_bit(q_id, vf->txq_ena);
1355 
1356 	return 0;
1357 }
1358 
1359 /**
1360  * ice_vc_dis_qs_msg
1361  * @vf: pointer to the VF info
1362  * @msg: pointer to the msg buffer
1363  *
1364  * called from the VF to disable all or specific queue(s)
1365  */
1366 static int ice_vc_dis_qs_msg(struct ice_vf *vf, u8 *msg)
1367 {
1368 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1369 	struct virtchnl_queue_select *vqs =
1370 	    (struct virtchnl_queue_select *)msg;
1371 	struct ice_vsi *vsi;
1372 	unsigned long q_map;
1373 	u16 vf_q_id;
1374 
1375 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) &&
1376 	    !test_bit(ICE_VF_STATE_QS_ENA, vf->vf_states)) {
1377 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1378 		goto error_param;
1379 	}
1380 
1381 	if (!ice_vc_isvalid_vsi_id(vf, vqs->vsi_id)) {
1382 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1383 		goto error_param;
1384 	}
1385 
1386 	if (!ice_vc_validate_vqs_bitmaps(vqs)) {
1387 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1388 		goto error_param;
1389 	}
1390 
1391 	vsi = ice_get_vf_vsi(vf);
1392 	if (!vsi) {
1393 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1394 		goto error_param;
1395 	}
1396 
1397 	if (vqs->tx_queues) {
1398 		q_map = vqs->tx_queues;
1399 
1400 		for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
1401 			if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
1402 				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1403 				goto error_param;
1404 			}
1405 
1406 			if (ice_vf_vsi_dis_single_txq(vf, vsi, vf_q_id)) {
1407 				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1408 				goto error_param;
1409 			}
1410 		}
1411 	}
1412 
1413 	q_map = vqs->rx_queues;
1414 	/* speed up Rx queue disable by batching them if possible */
1415 	if (q_map &&
1416 	    bitmap_equal(&q_map, vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF)) {
1417 		if (ice_vsi_stop_all_rx_rings(vsi)) {
1418 			dev_err(ice_pf_to_dev(vsi->back), "Failed to stop all Rx rings on VSI %d\n",
1419 				vsi->vsi_num);
1420 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1421 			goto error_param;
1422 		}
1423 
1424 		bitmap_zero(vf->rxq_ena, ICE_MAX_RSS_QS_PER_VF);
1425 	} else if (q_map) {
1426 		for_each_set_bit(vf_q_id, &q_map, ICE_MAX_RSS_QS_PER_VF) {
1427 			if (!ice_vc_isvalid_q_id(vf, vqs->vsi_id, vf_q_id)) {
1428 				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1429 				goto error_param;
1430 			}
1431 
1432 			/* Skip queue if not enabled */
1433 			if (!test_bit(vf_q_id, vf->rxq_ena))
1434 				continue;
1435 
1436 			if (ice_vsi_ctrl_one_rx_ring(vsi, false, vf_q_id,
1437 						     true)) {
1438 				dev_err(ice_pf_to_dev(vsi->back), "Failed to stop Rx ring %d on VSI %d\n",
1439 					vf_q_id, vsi->vsi_num);
1440 				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1441 				goto error_param;
1442 			}
1443 
1444 			/* Clear enabled queues flag */
1445 			clear_bit(vf_q_id, vf->rxq_ena);
1446 		}
1447 	}
1448 
1449 	/* Clear enabled queues flag */
1450 	if (v_ret == VIRTCHNL_STATUS_SUCCESS && ice_vf_has_no_qs_ena(vf))
1451 		clear_bit(ICE_VF_STATE_QS_ENA, vf->vf_states);
1452 
1453 error_param:
1454 	/* send the response to the VF */
1455 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_QUEUES, v_ret,
1456 				     NULL, 0);
1457 }
1458 
1459 /**
1460  * ice_cfg_interrupt
1461  * @vf: pointer to the VF info
1462  * @vsi: the VSI being configured
1463  * @vector_id: vector ID
1464  * @map: vector map for mapping vectors to queues
1465  * @q_vector: structure for interrupt vector
1466  * configure the IRQ to queue map
1467  */
1468 static int
1469 ice_cfg_interrupt(struct ice_vf *vf, struct ice_vsi *vsi, u16 vector_id,
1470 		  struct virtchnl_vector_map *map,
1471 		  struct ice_q_vector *q_vector)
1472 {
1473 	u16 vsi_q_id, vsi_q_id_idx;
1474 	unsigned long qmap;
1475 
1476 	q_vector->num_ring_rx = 0;
1477 	q_vector->num_ring_tx = 0;
1478 
1479 	qmap = map->rxq_map;
1480 	for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
1481 		vsi_q_id = vsi_q_id_idx;
1482 
1483 		if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
1484 			return VIRTCHNL_STATUS_ERR_PARAM;
1485 
1486 		q_vector->num_ring_rx++;
1487 		q_vector->rx.itr_idx = map->rxitr_idx;
1488 		vsi->rx_rings[vsi_q_id]->q_vector = q_vector;
1489 		ice_cfg_rxq_interrupt(vsi, vsi_q_id, vector_id,
1490 				      q_vector->rx.itr_idx);
1491 	}
1492 
1493 	qmap = map->txq_map;
1494 	for_each_set_bit(vsi_q_id_idx, &qmap, ICE_MAX_RSS_QS_PER_VF) {
1495 		vsi_q_id = vsi_q_id_idx;
1496 
1497 		if (!ice_vc_isvalid_q_id(vf, vsi->vsi_num, vsi_q_id))
1498 			return VIRTCHNL_STATUS_ERR_PARAM;
1499 
1500 		q_vector->num_ring_tx++;
1501 		q_vector->tx.itr_idx = map->txitr_idx;
1502 		vsi->tx_rings[vsi_q_id]->q_vector = q_vector;
1503 		ice_cfg_txq_interrupt(vsi, vsi_q_id, vector_id,
1504 				      q_vector->tx.itr_idx);
1505 	}
1506 
1507 	return VIRTCHNL_STATUS_SUCCESS;
1508 }
1509 
1510 /**
1511  * ice_vc_cfg_irq_map_msg
1512  * @vf: pointer to the VF info
1513  * @msg: pointer to the msg buffer
1514  *
1515  * called from the VF to configure the IRQ to queue map
1516  */
1517 static int ice_vc_cfg_irq_map_msg(struct ice_vf *vf, u8 *msg)
1518 {
1519 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1520 	u16 num_q_vectors_mapped, vsi_id, vector_id;
1521 	struct virtchnl_irq_map_info *irqmap_info;
1522 	struct virtchnl_vector_map *map;
1523 	struct ice_pf *pf = vf->pf;
1524 	struct ice_vsi *vsi;
1525 	int i;
1526 
1527 	irqmap_info = (struct virtchnl_irq_map_info *)msg;
1528 	num_q_vectors_mapped = irqmap_info->num_vectors;
1529 
1530 	/* Check to make sure number of VF vectors mapped is not greater than
1531 	 * number of VF vectors originally allocated, and check that
1532 	 * there is actually at least a single VF queue vector mapped
1533 	 */
1534 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
1535 	    pf->vfs.num_msix_per < num_q_vectors_mapped ||
1536 	    !num_q_vectors_mapped) {
1537 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1538 		goto error_param;
1539 	}
1540 
1541 	vsi = ice_get_vf_vsi(vf);
1542 	if (!vsi) {
1543 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1544 		goto error_param;
1545 	}
1546 
1547 	for (i = 0; i < num_q_vectors_mapped; i++) {
1548 		struct ice_q_vector *q_vector;
1549 
1550 		map = &irqmap_info->vecmap[i];
1551 
1552 		vector_id = map->vector_id;
1553 		vsi_id = map->vsi_id;
1554 		/* vector_id is always 0-based for each VF, and can never be
1555 		 * larger than or equal to the max allowed interrupts per VF
1556 		 */
1557 		if (!(vector_id < pf->vfs.num_msix_per) ||
1558 		    !ice_vc_isvalid_vsi_id(vf, vsi_id) ||
1559 		    (!vector_id && (map->rxq_map || map->txq_map))) {
1560 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1561 			goto error_param;
1562 		}
1563 
1564 		/* No need to map VF miscellaneous or rogue vector */
1565 		if (!vector_id)
1566 			continue;
1567 
1568 		/* Subtract non queue vector from vector_id passed by VF
1569 		 * to get actual number of VSI queue vector array index
1570 		 */
1571 		q_vector = vsi->q_vectors[vector_id - ICE_NONQ_VECS_VF];
1572 		if (!q_vector) {
1573 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1574 			goto error_param;
1575 		}
1576 
1577 		/* lookout for the invalid queue index */
1578 		v_ret = (enum virtchnl_status_code)
1579 			ice_cfg_interrupt(vf, vsi, vector_id, map, q_vector);
1580 		if (v_ret)
1581 			goto error_param;
1582 	}
1583 
1584 error_param:
1585 	/* send the response to the VF */
1586 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_IRQ_MAP, v_ret,
1587 				     NULL, 0);
1588 }
1589 
1590 /**
1591  * ice_vc_cfg_qs_msg
1592  * @vf: pointer to the VF info
1593  * @msg: pointer to the msg buffer
1594  *
1595  * called from the VF to configure the Rx/Tx queues
1596  */
1597 static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
1598 {
1599 	struct virtchnl_vsi_queue_config_info *qci =
1600 	    (struct virtchnl_vsi_queue_config_info *)msg;
1601 	struct virtchnl_queue_pair_info *qpi;
1602 	struct ice_pf *pf = vf->pf;
1603 	struct ice_vsi *vsi;
1604 	int i = -1, q_idx;
1605 
1606 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states))
1607 		goto error_param;
1608 
1609 	if (!ice_vc_isvalid_vsi_id(vf, qci->vsi_id))
1610 		goto error_param;
1611 
1612 	vsi = ice_get_vf_vsi(vf);
1613 	if (!vsi)
1614 		goto error_param;
1615 
1616 	if (qci->num_queue_pairs > ICE_MAX_RSS_QS_PER_VF ||
1617 	    qci->num_queue_pairs > min_t(u16, vsi->alloc_txq, vsi->alloc_rxq)) {
1618 		dev_err(ice_pf_to_dev(pf), "VF-%d requesting more than supported number of queues: %d\n",
1619 			vf->vf_id, min_t(u16, vsi->alloc_txq, vsi->alloc_rxq));
1620 		goto error_param;
1621 	}
1622 
1623 	for (i = 0; i < qci->num_queue_pairs; i++) {
1624 		qpi = &qci->qpair[i];
1625 		if (qpi->txq.vsi_id != qci->vsi_id ||
1626 		    qpi->rxq.vsi_id != qci->vsi_id ||
1627 		    qpi->rxq.queue_id != qpi->txq.queue_id ||
1628 		    qpi->txq.headwb_enabled ||
1629 		    !ice_vc_isvalid_ring_len(qpi->txq.ring_len) ||
1630 		    !ice_vc_isvalid_ring_len(qpi->rxq.ring_len) ||
1631 		    !ice_vc_isvalid_q_id(vf, qci->vsi_id, qpi->txq.queue_id)) {
1632 			goto error_param;
1633 		}
1634 
1635 		q_idx = qpi->rxq.queue_id;
1636 
1637 		/* make sure selected "q_idx" is in valid range of queues
1638 		 * for selected "vsi"
1639 		 */
1640 		if (q_idx >= vsi->alloc_txq || q_idx >= vsi->alloc_rxq) {
1641 			goto error_param;
1642 		}
1643 
1644 		/* copy Tx queue info from VF into VSI */
1645 		if (qpi->txq.ring_len > 0) {
1646 			vsi->tx_rings[i]->dma = qpi->txq.dma_ring_addr;
1647 			vsi->tx_rings[i]->count = qpi->txq.ring_len;
1648 
1649 			/* Disable any existing queue first */
1650 			if (ice_vf_vsi_dis_single_txq(vf, vsi, q_idx))
1651 				goto error_param;
1652 
1653 			/* Configure a queue with the requested settings */
1654 			if (ice_vsi_cfg_single_txq(vsi, vsi->tx_rings, q_idx)) {
1655 				dev_warn(ice_pf_to_dev(pf), "VF-%d failed to configure TX queue %d\n",
1656 					 vf->vf_id, i);
1657 				goto error_param;
1658 			}
1659 		}
1660 
1661 		/* copy Rx queue info from VF into VSI */
1662 		if (qpi->rxq.ring_len > 0) {
1663 			u16 max_frame_size = ice_vc_get_max_frame_size(vf);
1664 			u32 rxdid;
1665 
1666 			vsi->rx_rings[i]->dma = qpi->rxq.dma_ring_addr;
1667 			vsi->rx_rings[i]->count = qpi->rxq.ring_len;
1668 
1669 			if (qpi->rxq.databuffer_size != 0 &&
1670 			    (qpi->rxq.databuffer_size > ((16 * 1024) - 128) ||
1671 			     qpi->rxq.databuffer_size < 1024))
1672 				goto error_param;
1673 			vsi->rx_buf_len = qpi->rxq.databuffer_size;
1674 			vsi->rx_rings[i]->rx_buf_len = vsi->rx_buf_len;
1675 			if (qpi->rxq.max_pkt_size > max_frame_size ||
1676 			    qpi->rxq.max_pkt_size < 64)
1677 				goto error_param;
1678 
1679 			vsi->max_frame = qpi->rxq.max_pkt_size;
1680 			/* add space for the port VLAN since the VF driver is
1681 			 * not expected to account for it in the MTU
1682 			 * calculation
1683 			 */
1684 			if (ice_vf_is_port_vlan_ena(vf))
1685 				vsi->max_frame += VLAN_HLEN;
1686 
1687 			if (ice_vsi_cfg_single_rxq(vsi, q_idx)) {
1688 				dev_warn(ice_pf_to_dev(pf), "VF-%d failed to configure RX queue %d\n",
1689 					 vf->vf_id, i);
1690 				goto error_param;
1691 			}
1692 
1693 			/* If Rx flex desc is supported, select RXDID for Rx
1694 			 * queues. Otherwise, use legacy 32byte descriptor
1695 			 * format. Legacy 16byte descriptor is not supported.
1696 			 * If this RXDID is selected, return error.
1697 			 */
1698 			if (vf->driver_caps &
1699 			    VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC) {
1700 				rxdid = qpi->rxq.rxdid;
1701 				if (!(BIT(rxdid) & pf->supported_rxdids))
1702 					goto error_param;
1703 			} else {
1704 				rxdid = ICE_RXDID_LEGACY_1;
1705 			}
1706 
1707 			ice_write_qrxflxp_cntxt(&vsi->back->hw,
1708 						vsi->rxq_map[q_idx],
1709 						rxdid, 0x03, false);
1710 		}
1711 	}
1712 
1713 	/* send the response to the VF */
1714 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1715 				     VIRTCHNL_STATUS_SUCCESS, NULL, 0);
1716 error_param:
1717 	/* disable whatever we can */
1718 	for (; i >= 0; i--) {
1719 		if (ice_vsi_ctrl_one_rx_ring(vsi, false, i, true))
1720 			dev_err(ice_pf_to_dev(pf), "VF-%d could not disable RX queue %d\n",
1721 				vf->vf_id, i);
1722 		if (ice_vf_vsi_dis_single_txq(vf, vsi, i))
1723 			dev_err(ice_pf_to_dev(pf), "VF-%d could not disable TX queue %d\n",
1724 				vf->vf_id, i);
1725 	}
1726 
1727 	/* send the response to the VF */
1728 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_VSI_QUEUES,
1729 				     VIRTCHNL_STATUS_ERR_PARAM, NULL, 0);
1730 }
1731 
1732 /**
1733  * ice_can_vf_change_mac
1734  * @vf: pointer to the VF info
1735  *
1736  * Return true if the VF is allowed to change its MAC filters, false otherwise
1737  */
1738 static bool ice_can_vf_change_mac(struct ice_vf *vf)
1739 {
1740 	/* If the VF MAC address has been set administratively (via the
1741 	 * ndo_set_vf_mac command), then deny permission to the VF to
1742 	 * add/delete unicast MAC addresses, unless the VF is trusted
1743 	 */
1744 	if (vf->pf_set_mac && !ice_is_vf_trusted(vf))
1745 		return false;
1746 
1747 	return true;
1748 }
1749 
1750 /**
1751  * ice_vc_ether_addr_type - get type of virtchnl_ether_addr
1752  * @vc_ether_addr: used to extract the type
1753  */
1754 static u8
1755 ice_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr)
1756 {
1757 	return (vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK);
1758 }
1759 
1760 /**
1761  * ice_is_vc_addr_legacy - check if the MAC address is from an older VF
1762  * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
1763  */
1764 static bool
1765 ice_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr)
1766 {
1767 	u8 type = ice_vc_ether_addr_type(vc_ether_addr);
1768 
1769 	return (type == VIRTCHNL_ETHER_ADDR_LEGACY);
1770 }
1771 
1772 /**
1773  * ice_is_vc_addr_primary - check if the MAC address is the VF's primary MAC
1774  * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
1775  *
1776  * This function should only be called when the MAC address in
1777  * virtchnl_ether_addr is a valid unicast MAC
1778  */
1779 static bool
1780 ice_is_vc_addr_primary(struct virtchnl_ether_addr __maybe_unused *vc_ether_addr)
1781 {
1782 	u8 type = ice_vc_ether_addr_type(vc_ether_addr);
1783 
1784 	return (type == VIRTCHNL_ETHER_ADDR_PRIMARY);
1785 }
1786 
1787 /**
1788  * ice_vfhw_mac_add - update the VF's cached hardware MAC if allowed
1789  * @vf: VF to update
1790  * @vc_ether_addr: structure from VIRTCHNL with MAC to add
1791  */
1792 static void
1793 ice_vfhw_mac_add(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
1794 {
1795 	u8 *mac_addr = vc_ether_addr->addr;
1796 
1797 	if (!is_valid_ether_addr(mac_addr))
1798 		return;
1799 
1800 	/* only allow legacy VF drivers to set the device and hardware MAC if it
1801 	 * is zero and allow new VF drivers to set the hardware MAC if the type
1802 	 * was correctly specified over VIRTCHNL
1803 	 */
1804 	if ((ice_is_vc_addr_legacy(vc_ether_addr) &&
1805 	     is_zero_ether_addr(vf->hw_lan_addr)) ||
1806 	    ice_is_vc_addr_primary(vc_ether_addr)) {
1807 		ether_addr_copy(vf->dev_lan_addr, mac_addr);
1808 		ether_addr_copy(vf->hw_lan_addr, mac_addr);
1809 	}
1810 
1811 	/* hardware and device MACs are already set, but its possible that the
1812 	 * VF driver sent the VIRTCHNL_OP_ADD_ETH_ADDR message before the
1813 	 * VIRTCHNL_OP_DEL_ETH_ADDR when trying to update its MAC, so save it
1814 	 * away for the legacy VF driver case as it will be updated in the
1815 	 * delete flow for this case
1816 	 */
1817 	if (ice_is_vc_addr_legacy(vc_ether_addr)) {
1818 		ether_addr_copy(vf->legacy_last_added_umac.addr,
1819 				mac_addr);
1820 		vf->legacy_last_added_umac.time_modified = jiffies;
1821 	}
1822 }
1823 
1824 /**
1825  * ice_vc_add_mac_addr - attempt to add the MAC address passed in
1826  * @vf: pointer to the VF info
1827  * @vsi: pointer to the VF's VSI
1828  * @vc_ether_addr: VIRTCHNL MAC address structure used to add MAC
1829  */
1830 static int
1831 ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi,
1832 		    struct virtchnl_ether_addr *vc_ether_addr)
1833 {
1834 	struct device *dev = ice_pf_to_dev(vf->pf);
1835 	u8 *mac_addr = vc_ether_addr->addr;
1836 	int ret;
1837 
1838 	/* device MAC already added */
1839 	if (ether_addr_equal(mac_addr, vf->dev_lan_addr))
1840 		return 0;
1841 
1842 	if (is_unicast_ether_addr(mac_addr) && !ice_can_vf_change_mac(vf)) {
1843 		dev_err(dev, "VF attempting to override administratively set MAC address, bring down and up the VF interface to resume normal operation\n");
1844 		return -EPERM;
1845 	}
1846 
1847 	ret = ice_fltr_add_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
1848 	if (ret == -EEXIST) {
1849 		dev_dbg(dev, "MAC %pM already exists for VF %d\n", mac_addr,
1850 			vf->vf_id);
1851 		/* don't return since we might need to update
1852 		 * the primary MAC in ice_vfhw_mac_add() below
1853 		 */
1854 	} else if (ret) {
1855 		dev_err(dev, "Failed to add MAC %pM for VF %d\n, error %d\n",
1856 			mac_addr, vf->vf_id, ret);
1857 		return ret;
1858 	} else {
1859 		vf->num_mac++;
1860 	}
1861 
1862 	ice_vfhw_mac_add(vf, vc_ether_addr);
1863 
1864 	return ret;
1865 }
1866 
1867 /**
1868  * ice_is_legacy_umac_expired - check if last added legacy unicast MAC expired
1869  * @last_added_umac: structure used to check expiration
1870  */
1871 static bool ice_is_legacy_umac_expired(struct ice_time_mac *last_added_umac)
1872 {
1873 #define ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME	msecs_to_jiffies(3000)
1874 	return time_is_before_jiffies(last_added_umac->time_modified +
1875 				      ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME);
1876 }
1877 
1878 /**
1879  * ice_update_legacy_cached_mac - update cached hardware MAC for legacy VF
1880  * @vf: VF to update
1881  * @vc_ether_addr: structure from VIRTCHNL with MAC to check
1882  *
1883  * only update cached hardware MAC for legacy VF drivers on delete
1884  * because we cannot guarantee order/type of MAC from the VF driver
1885  */
1886 static void
1887 ice_update_legacy_cached_mac(struct ice_vf *vf,
1888 			     struct virtchnl_ether_addr *vc_ether_addr)
1889 {
1890 	if (!ice_is_vc_addr_legacy(vc_ether_addr) ||
1891 	    ice_is_legacy_umac_expired(&vf->legacy_last_added_umac))
1892 		return;
1893 
1894 	ether_addr_copy(vf->dev_lan_addr, vf->legacy_last_added_umac.addr);
1895 	ether_addr_copy(vf->hw_lan_addr, vf->legacy_last_added_umac.addr);
1896 }
1897 
1898 /**
1899  * ice_vfhw_mac_del - update the VF's cached hardware MAC if allowed
1900  * @vf: VF to update
1901  * @vc_ether_addr: structure from VIRTCHNL with MAC to delete
1902  */
1903 static void
1904 ice_vfhw_mac_del(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
1905 {
1906 	u8 *mac_addr = vc_ether_addr->addr;
1907 
1908 	if (!is_valid_ether_addr(mac_addr) ||
1909 	    !ether_addr_equal(vf->dev_lan_addr, mac_addr))
1910 		return;
1911 
1912 	/* allow the device MAC to be repopulated in the add flow and don't
1913 	 * clear the hardware MAC (i.e. hw_lan_addr) here as that is meant
1914 	 * to be persistent on VM reboot and across driver unload/load, which
1915 	 * won't work if we clear the hardware MAC here
1916 	 */
1917 	eth_zero_addr(vf->dev_lan_addr);
1918 
1919 	ice_update_legacy_cached_mac(vf, vc_ether_addr);
1920 }
1921 
1922 /**
1923  * ice_vc_del_mac_addr - attempt to delete the MAC address passed in
1924  * @vf: pointer to the VF info
1925  * @vsi: pointer to the VF's VSI
1926  * @vc_ether_addr: VIRTCHNL MAC address structure used to delete MAC
1927  */
1928 static int
1929 ice_vc_del_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi,
1930 		    struct virtchnl_ether_addr *vc_ether_addr)
1931 {
1932 	struct device *dev = ice_pf_to_dev(vf->pf);
1933 	u8 *mac_addr = vc_ether_addr->addr;
1934 	int status;
1935 
1936 	if (!ice_can_vf_change_mac(vf) &&
1937 	    ether_addr_equal(vf->dev_lan_addr, mac_addr))
1938 		return 0;
1939 
1940 	status = ice_fltr_remove_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
1941 	if (status == -ENOENT) {
1942 		dev_err(dev, "MAC %pM does not exist for VF %d\n", mac_addr,
1943 			vf->vf_id);
1944 		return -ENOENT;
1945 	} else if (status) {
1946 		dev_err(dev, "Failed to delete MAC %pM for VF %d, error %d\n",
1947 			mac_addr, vf->vf_id, status);
1948 		return -EIO;
1949 	}
1950 
1951 	ice_vfhw_mac_del(vf, vc_ether_addr);
1952 
1953 	vf->num_mac--;
1954 
1955 	return 0;
1956 }
1957 
1958 /**
1959  * ice_vc_handle_mac_addr_msg
1960  * @vf: pointer to the VF info
1961  * @msg: pointer to the msg buffer
1962  * @set: true if MAC filters are being set, false otherwise
1963  *
1964  * add guest MAC address filter
1965  */
1966 static int
1967 ice_vc_handle_mac_addr_msg(struct ice_vf *vf, u8 *msg, bool set)
1968 {
1969 	int (*ice_vc_cfg_mac)
1970 		(struct ice_vf *vf, struct ice_vsi *vsi,
1971 		 struct virtchnl_ether_addr *virtchnl_ether_addr);
1972 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
1973 	struct virtchnl_ether_addr_list *al =
1974 	    (struct virtchnl_ether_addr_list *)msg;
1975 	struct ice_pf *pf = vf->pf;
1976 	enum virtchnl_ops vc_op;
1977 	struct ice_vsi *vsi;
1978 	int i;
1979 
1980 	if (set) {
1981 		vc_op = VIRTCHNL_OP_ADD_ETH_ADDR;
1982 		ice_vc_cfg_mac = ice_vc_add_mac_addr;
1983 	} else {
1984 		vc_op = VIRTCHNL_OP_DEL_ETH_ADDR;
1985 		ice_vc_cfg_mac = ice_vc_del_mac_addr;
1986 	}
1987 
1988 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
1989 	    !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) {
1990 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
1991 		goto handle_mac_exit;
1992 	}
1993 
1994 	/* If this VF is not privileged, then we can't add more than a
1995 	 * limited number of addresses. Check to make sure that the
1996 	 * additions do not push us over the limit.
1997 	 */
1998 	if (set && !ice_is_vf_trusted(vf) &&
1999 	    (vf->num_mac + al->num_elements) > ICE_MAX_MACADDR_PER_VF) {
2000 		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",
2001 			vf->vf_id);
2002 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2003 		goto handle_mac_exit;
2004 	}
2005 
2006 	vsi = ice_get_vf_vsi(vf);
2007 	if (!vsi) {
2008 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2009 		goto handle_mac_exit;
2010 	}
2011 
2012 	for (i = 0; i < al->num_elements; i++) {
2013 		u8 *mac_addr = al->list[i].addr;
2014 		int result;
2015 
2016 		if (is_broadcast_ether_addr(mac_addr) ||
2017 		    is_zero_ether_addr(mac_addr))
2018 			continue;
2019 
2020 		result = ice_vc_cfg_mac(vf, vsi, &al->list[i]);
2021 		if (result == -EEXIST || result == -ENOENT) {
2022 			continue;
2023 		} else if (result) {
2024 			v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
2025 			goto handle_mac_exit;
2026 		}
2027 	}
2028 
2029 handle_mac_exit:
2030 	/* send the response to the VF */
2031 	return ice_vc_send_msg_to_vf(vf, vc_op, v_ret, NULL, 0);
2032 }
2033 
2034 /**
2035  * ice_vc_add_mac_addr_msg
2036  * @vf: pointer to the VF info
2037  * @msg: pointer to the msg buffer
2038  *
2039  * add guest MAC address filter
2040  */
2041 static int ice_vc_add_mac_addr_msg(struct ice_vf *vf, u8 *msg)
2042 {
2043 	return ice_vc_handle_mac_addr_msg(vf, msg, true);
2044 }
2045 
2046 /**
2047  * ice_vc_del_mac_addr_msg
2048  * @vf: pointer to the VF info
2049  * @msg: pointer to the msg buffer
2050  *
2051  * remove guest MAC address filter
2052  */
2053 static int ice_vc_del_mac_addr_msg(struct ice_vf *vf, u8 *msg)
2054 {
2055 	return ice_vc_handle_mac_addr_msg(vf, msg, false);
2056 }
2057 
2058 /**
2059  * ice_vc_request_qs_msg
2060  * @vf: pointer to the VF info
2061  * @msg: pointer to the msg buffer
2062  *
2063  * VFs get a default number of queues but can use this message to request a
2064  * different number. If the request is successful, PF will reset the VF and
2065  * return 0. If unsuccessful, PF will send message informing VF of number of
2066  * available queue pairs via virtchnl message response to VF.
2067  */
2068 static int ice_vc_request_qs_msg(struct ice_vf *vf, u8 *msg)
2069 {
2070 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2071 	struct virtchnl_vf_res_request *vfres =
2072 		(struct virtchnl_vf_res_request *)msg;
2073 	u16 req_queues = vfres->num_queue_pairs;
2074 	struct ice_pf *pf = vf->pf;
2075 	u16 max_allowed_vf_queues;
2076 	u16 tx_rx_queue_left;
2077 	struct device *dev;
2078 	u16 cur_queues;
2079 
2080 	dev = ice_pf_to_dev(pf);
2081 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2082 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2083 		goto error_param;
2084 	}
2085 
2086 	cur_queues = vf->num_vf_qs;
2087 	tx_rx_queue_left = min_t(u16, ice_get_avail_txq_count(pf),
2088 				 ice_get_avail_rxq_count(pf));
2089 	max_allowed_vf_queues = tx_rx_queue_left + cur_queues;
2090 	if (!req_queues) {
2091 		dev_err(dev, "VF %d tried to request 0 queues. Ignoring.\n",
2092 			vf->vf_id);
2093 	} else if (req_queues > ICE_MAX_RSS_QS_PER_VF) {
2094 		dev_err(dev, "VF %d tried to request more than %d queues.\n",
2095 			vf->vf_id, ICE_MAX_RSS_QS_PER_VF);
2096 		vfres->num_queue_pairs = ICE_MAX_RSS_QS_PER_VF;
2097 	} else if (req_queues > cur_queues &&
2098 		   req_queues - cur_queues > tx_rx_queue_left) {
2099 		dev_warn(dev, "VF %d requested %u more queues, but only %u left.\n",
2100 			 vf->vf_id, req_queues - cur_queues, tx_rx_queue_left);
2101 		vfres->num_queue_pairs = min_t(u16, max_allowed_vf_queues,
2102 					       ICE_MAX_RSS_QS_PER_VF);
2103 	} else {
2104 		/* request is successful, then reset VF */
2105 		vf->num_req_qs = req_queues;
2106 		ice_reset_vf(vf, ICE_VF_RESET_NOTIFY);
2107 		dev_info(dev, "VF %d granted request of %u queues.\n",
2108 			 vf->vf_id, req_queues);
2109 		return 0;
2110 	}
2111 
2112 error_param:
2113 	/* send the response to the VF */
2114 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_REQUEST_QUEUES,
2115 				     v_ret, (u8 *)vfres, sizeof(*vfres));
2116 }
2117 
2118 /**
2119  * ice_vf_vlan_offload_ena - determine if capabilities support VLAN offloads
2120  * @caps: VF driver negotiated capabilities
2121  *
2122  * Return true if VIRTCHNL_VF_OFFLOAD_VLAN capability is set, else return false
2123  */
2124 static bool ice_vf_vlan_offload_ena(u32 caps)
2125 {
2126 	return !!(caps & VIRTCHNL_VF_OFFLOAD_VLAN);
2127 }
2128 
2129 /**
2130  * ice_is_vlan_promisc_allowed - check if VLAN promiscuous config is allowed
2131  * @vf: VF used to determine if VLAN promiscuous config is allowed
2132  */
2133 static bool ice_is_vlan_promisc_allowed(struct ice_vf *vf)
2134 {
2135 	if ((test_bit(ICE_VF_STATE_UC_PROMISC, vf->vf_states) ||
2136 	     test_bit(ICE_VF_STATE_MC_PROMISC, vf->vf_states)) &&
2137 	    test_bit(ICE_FLAG_VF_TRUE_PROMISC_ENA, vf->pf->flags))
2138 		return true;
2139 
2140 	return false;
2141 }
2142 
2143 /**
2144  * ice_vf_ena_vlan_promisc - Enable Tx/Rx VLAN promiscuous for the VLAN
2145  * @vsi: VF's VSI used to enable VLAN promiscuous mode
2146  * @vlan: VLAN used to enable VLAN promiscuous
2147  *
2148  * This function should only be called if VLAN promiscuous mode is allowed,
2149  * which can be determined via ice_is_vlan_promisc_allowed().
2150  */
2151 static int ice_vf_ena_vlan_promisc(struct ice_vsi *vsi, struct ice_vlan *vlan)
2152 {
2153 	u8 promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX;
2154 	int status;
2155 
2156 	status = ice_fltr_set_vsi_promisc(&vsi->back->hw, vsi->idx, promisc_m,
2157 					  vlan->vid);
2158 	if (status && status != -EEXIST)
2159 		return status;
2160 
2161 	return 0;
2162 }
2163 
2164 /**
2165  * ice_vf_dis_vlan_promisc - Disable Tx/Rx VLAN promiscuous for the VLAN
2166  * @vsi: VF's VSI used to disable VLAN promiscuous mode for
2167  * @vlan: VLAN used to disable VLAN promiscuous
2168  *
2169  * This function should only be called if VLAN promiscuous mode is allowed,
2170  * which can be determined via ice_is_vlan_promisc_allowed().
2171  */
2172 static int ice_vf_dis_vlan_promisc(struct ice_vsi *vsi, struct ice_vlan *vlan)
2173 {
2174 	u8 promisc_m = ICE_PROMISC_VLAN_TX | ICE_PROMISC_VLAN_RX;
2175 	int status;
2176 
2177 	status = ice_fltr_clear_vsi_promisc(&vsi->back->hw, vsi->idx, promisc_m,
2178 					    vlan->vid);
2179 	if (status && status != -ENOENT)
2180 		return status;
2181 
2182 	return 0;
2183 }
2184 
2185 /**
2186  * ice_vf_has_max_vlans - check if VF already has the max allowed VLAN filters
2187  * @vf: VF to check against
2188  * @vsi: VF's VSI
2189  *
2190  * If the VF is trusted then the VF is allowed to add as many VLANs as it
2191  * wants to, so return false.
2192  *
2193  * When the VF is untrusted compare the number of non-zero VLANs + 1 to the max
2194  * allowed VLANs for an untrusted VF. Return the result of this comparison.
2195  */
2196 static bool ice_vf_has_max_vlans(struct ice_vf *vf, struct ice_vsi *vsi)
2197 {
2198 	if (ice_is_vf_trusted(vf))
2199 		return false;
2200 
2201 #define ICE_VF_ADDED_VLAN_ZERO_FLTRS	1
2202 	return ((ice_vsi_num_non_zero_vlans(vsi) +
2203 		ICE_VF_ADDED_VLAN_ZERO_FLTRS) >= ICE_MAX_VLAN_PER_VF);
2204 }
2205 
2206 /**
2207  * ice_vc_process_vlan_msg
2208  * @vf: pointer to the VF info
2209  * @msg: pointer to the msg buffer
2210  * @add_v: Add VLAN if true, otherwise delete VLAN
2211  *
2212  * Process virtchnl op to add or remove programmed guest VLAN ID
2213  */
2214 static int ice_vc_process_vlan_msg(struct ice_vf *vf, u8 *msg, bool add_v)
2215 {
2216 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2217 	struct virtchnl_vlan_filter_list *vfl =
2218 	    (struct virtchnl_vlan_filter_list *)msg;
2219 	struct ice_pf *pf = vf->pf;
2220 	bool vlan_promisc = false;
2221 	struct ice_vsi *vsi;
2222 	struct device *dev;
2223 	int status = 0;
2224 	int i;
2225 
2226 	dev = ice_pf_to_dev(pf);
2227 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2228 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2229 		goto error_param;
2230 	}
2231 
2232 	if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
2233 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2234 		goto error_param;
2235 	}
2236 
2237 	if (!ice_vc_isvalid_vsi_id(vf, vfl->vsi_id)) {
2238 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2239 		goto error_param;
2240 	}
2241 
2242 	for (i = 0; i < vfl->num_elements; i++) {
2243 		if (vfl->vlan_id[i] >= VLAN_N_VID) {
2244 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2245 			dev_err(dev, "invalid VF VLAN id %d\n",
2246 				vfl->vlan_id[i]);
2247 			goto error_param;
2248 		}
2249 	}
2250 
2251 	vsi = ice_get_vf_vsi(vf);
2252 	if (!vsi) {
2253 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2254 		goto error_param;
2255 	}
2256 
2257 	if (add_v && ice_vf_has_max_vlans(vf, vsi)) {
2258 		dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n",
2259 			 vf->vf_id);
2260 		/* There is no need to let VF know about being not trusted,
2261 		 * so we can just return success message here
2262 		 */
2263 		goto error_param;
2264 	}
2265 
2266 	/* in DVM a VF can add/delete inner VLAN filters when
2267 	 * VIRTCHNL_VF_OFFLOAD_VLAN is negotiated, so only reject in SVM
2268 	 */
2269 	if (ice_vf_is_port_vlan_ena(vf) && !ice_is_dvm_ena(&pf->hw)) {
2270 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2271 		goto error_param;
2272 	}
2273 
2274 	/* in DVM VLAN promiscuous is based on the outer VLAN, which would be
2275 	 * the port VLAN if VIRTCHNL_VF_OFFLOAD_VLAN was negotiated, so only
2276 	 * allow vlan_promisc = true in SVM and if no port VLAN is configured
2277 	 */
2278 	vlan_promisc = ice_is_vlan_promisc_allowed(vf) &&
2279 		!ice_is_dvm_ena(&pf->hw) &&
2280 		!ice_vf_is_port_vlan_ena(vf);
2281 
2282 	if (add_v) {
2283 		for (i = 0; i < vfl->num_elements; i++) {
2284 			u16 vid = vfl->vlan_id[i];
2285 			struct ice_vlan vlan;
2286 
2287 			if (ice_vf_has_max_vlans(vf, vsi)) {
2288 				dev_info(dev, "VF-%d is not trusted, switch the VF to trusted mode, in order to add more VLAN addresses\n",
2289 					 vf->vf_id);
2290 				/* There is no need to let VF know about being
2291 				 * not trusted, so we can just return success
2292 				 * message here as well.
2293 				 */
2294 				goto error_param;
2295 			}
2296 
2297 			/* we add VLAN 0 by default for each VF so we can enable
2298 			 * Tx VLAN anti-spoof without triggering MDD events so
2299 			 * we don't need to add it again here
2300 			 */
2301 			if (!vid)
2302 				continue;
2303 
2304 			vlan = ICE_VLAN(ETH_P_8021Q, vid, 0);
2305 			status = vsi->inner_vlan_ops.add_vlan(vsi, &vlan);
2306 			if (status) {
2307 				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2308 				goto error_param;
2309 			}
2310 
2311 			/* Enable VLAN filtering on first non-zero VLAN */
2312 			if (!vlan_promisc && vid && !ice_is_dvm_ena(&pf->hw)) {
2313 				if (vf->spoofchk) {
2314 					status = vsi->inner_vlan_ops.ena_tx_filtering(vsi);
2315 					if (status) {
2316 						v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2317 						dev_err(dev, "Enable VLAN anti-spoofing on VLAN ID: %d failed error-%d\n",
2318 							vid, status);
2319 						goto error_param;
2320 					}
2321 				}
2322 				if (vsi->inner_vlan_ops.ena_rx_filtering(vsi)) {
2323 					v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2324 					dev_err(dev, "Enable VLAN pruning on VLAN ID: %d failed error-%d\n",
2325 						vid, status);
2326 					goto error_param;
2327 				}
2328 			} else if (vlan_promisc) {
2329 				status = ice_vf_ena_vlan_promisc(vsi, &vlan);
2330 				if (status) {
2331 					v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2332 					dev_err(dev, "Enable Unicast/multicast promiscuous mode on VLAN ID:%d failed error-%d\n",
2333 						vid, status);
2334 				}
2335 			}
2336 		}
2337 	} else {
2338 		/* In case of non_trusted VF, number of VLAN elements passed
2339 		 * to PF for removal might be greater than number of VLANs
2340 		 * filter programmed for that VF - So, use actual number of
2341 		 * VLANS added earlier with add VLAN opcode. In order to avoid
2342 		 * removing VLAN that doesn't exist, which result to sending
2343 		 * erroneous failed message back to the VF
2344 		 */
2345 		int num_vf_vlan;
2346 
2347 		num_vf_vlan = vsi->num_vlan;
2348 		for (i = 0; i < vfl->num_elements && i < num_vf_vlan; i++) {
2349 			u16 vid = vfl->vlan_id[i];
2350 			struct ice_vlan vlan;
2351 
2352 			/* we add VLAN 0 by default for each VF so we can enable
2353 			 * Tx VLAN anti-spoof without triggering MDD events so
2354 			 * we don't want a VIRTCHNL request to remove it
2355 			 */
2356 			if (!vid)
2357 				continue;
2358 
2359 			vlan = ICE_VLAN(ETH_P_8021Q, vid, 0);
2360 			status = vsi->inner_vlan_ops.del_vlan(vsi, &vlan);
2361 			if (status) {
2362 				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2363 				goto error_param;
2364 			}
2365 
2366 			/* Disable VLAN filtering when only VLAN 0 is left */
2367 			if (!ice_vsi_has_non_zero_vlans(vsi)) {
2368 				vsi->inner_vlan_ops.dis_tx_filtering(vsi);
2369 				vsi->inner_vlan_ops.dis_rx_filtering(vsi);
2370 			}
2371 
2372 			if (vlan_promisc)
2373 				ice_vf_dis_vlan_promisc(vsi, &vlan);
2374 		}
2375 	}
2376 
2377 error_param:
2378 	/* send the response to the VF */
2379 	if (add_v)
2380 		return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN, v_ret,
2381 					     NULL, 0);
2382 	else
2383 		return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN, v_ret,
2384 					     NULL, 0);
2385 }
2386 
2387 /**
2388  * ice_vc_add_vlan_msg
2389  * @vf: pointer to the VF info
2390  * @msg: pointer to the msg buffer
2391  *
2392  * Add and program guest VLAN ID
2393  */
2394 static int ice_vc_add_vlan_msg(struct ice_vf *vf, u8 *msg)
2395 {
2396 	return ice_vc_process_vlan_msg(vf, msg, true);
2397 }
2398 
2399 /**
2400  * ice_vc_remove_vlan_msg
2401  * @vf: pointer to the VF info
2402  * @msg: pointer to the msg buffer
2403  *
2404  * remove programmed guest VLAN ID
2405  */
2406 static int ice_vc_remove_vlan_msg(struct ice_vf *vf, u8 *msg)
2407 {
2408 	return ice_vc_process_vlan_msg(vf, msg, false);
2409 }
2410 
2411 /**
2412  * ice_vc_ena_vlan_stripping
2413  * @vf: pointer to the VF info
2414  *
2415  * Enable VLAN header stripping for a given VF
2416  */
2417 static int ice_vc_ena_vlan_stripping(struct ice_vf *vf)
2418 {
2419 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2420 	struct ice_vsi *vsi;
2421 
2422 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2423 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2424 		goto error_param;
2425 	}
2426 
2427 	if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
2428 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2429 		goto error_param;
2430 	}
2431 
2432 	vsi = ice_get_vf_vsi(vf);
2433 	if (!vsi) {
2434 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2435 		goto error_param;
2436 	}
2437 
2438 	if (vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q))
2439 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2440 
2441 error_param:
2442 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING,
2443 				     v_ret, NULL, 0);
2444 }
2445 
2446 /**
2447  * ice_vc_dis_vlan_stripping
2448  * @vf: pointer to the VF info
2449  *
2450  * Disable VLAN header stripping for a given VF
2451  */
2452 static int ice_vc_dis_vlan_stripping(struct ice_vf *vf)
2453 {
2454 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2455 	struct ice_vsi *vsi;
2456 
2457 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2458 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2459 		goto error_param;
2460 	}
2461 
2462 	if (!ice_vf_vlan_offload_ena(vf->driver_caps)) {
2463 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2464 		goto error_param;
2465 	}
2466 
2467 	vsi = ice_get_vf_vsi(vf);
2468 	if (!vsi) {
2469 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2470 		goto error_param;
2471 	}
2472 
2473 	if (vsi->inner_vlan_ops.dis_stripping(vsi))
2474 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2475 
2476 error_param:
2477 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING,
2478 				     v_ret, NULL, 0);
2479 }
2480 
2481 /**
2482  * ice_vc_get_rss_hena - return the RSS HENA bits allowed by the hardware
2483  * @vf: pointer to the VF info
2484  */
2485 static int ice_vc_get_rss_hena(struct ice_vf *vf)
2486 {
2487 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2488 	struct virtchnl_rss_hena *vrh = NULL;
2489 	int len = 0, ret;
2490 
2491 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2492 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2493 		goto err;
2494 	}
2495 
2496 	if (!test_bit(ICE_FLAG_RSS_ENA, vf->pf->flags)) {
2497 		dev_err(ice_pf_to_dev(vf->pf), "RSS not supported by PF\n");
2498 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2499 		goto err;
2500 	}
2501 
2502 	len = sizeof(struct virtchnl_rss_hena);
2503 	vrh = kzalloc(len, GFP_KERNEL);
2504 	if (!vrh) {
2505 		v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
2506 		len = 0;
2507 		goto err;
2508 	}
2509 
2510 	vrh->hena = ICE_DEFAULT_RSS_HENA;
2511 err:
2512 	/* send the response back to the VF */
2513 	ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_RSS_HENA_CAPS, v_ret,
2514 				    (u8 *)vrh, len);
2515 	kfree(vrh);
2516 	return ret;
2517 }
2518 
2519 /**
2520  * ice_vc_set_rss_hena - set RSS HENA bits for the VF
2521  * @vf: pointer to the VF info
2522  * @msg: pointer to the msg buffer
2523  */
2524 static int ice_vc_set_rss_hena(struct ice_vf *vf, u8 *msg)
2525 {
2526 	struct virtchnl_rss_hena *vrh = (struct virtchnl_rss_hena *)msg;
2527 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2528 	struct ice_pf *pf = vf->pf;
2529 	struct ice_vsi *vsi;
2530 	struct device *dev;
2531 	int status;
2532 
2533 	dev = ice_pf_to_dev(pf);
2534 
2535 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2536 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2537 		goto err;
2538 	}
2539 
2540 	if (!test_bit(ICE_FLAG_RSS_ENA, pf->flags)) {
2541 		dev_err(dev, "RSS not supported by PF\n");
2542 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2543 		goto err;
2544 	}
2545 
2546 	vsi = ice_get_vf_vsi(vf);
2547 	if (!vsi) {
2548 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2549 		goto err;
2550 	}
2551 
2552 	/* clear all previously programmed RSS configuration to allow VF drivers
2553 	 * the ability to customize the RSS configuration and/or completely
2554 	 * disable RSS
2555 	 */
2556 	status = ice_rem_vsi_rss_cfg(&pf->hw, vsi->idx);
2557 	if (status && !vrh->hena) {
2558 		/* only report failure to clear the current RSS configuration if
2559 		 * that was clearly the VF's intention (i.e. vrh->hena = 0)
2560 		 */
2561 		v_ret = ice_err_to_virt_err(status);
2562 		goto err;
2563 	} else if (status) {
2564 		/* allow the VF to update the RSS configuration even on failure
2565 		 * to clear the current RSS confguration in an attempt to keep
2566 		 * RSS in a working state
2567 		 */
2568 		dev_warn(dev, "Failed to clear the RSS configuration for VF %u\n",
2569 			 vf->vf_id);
2570 	}
2571 
2572 	if (vrh->hena) {
2573 		status = ice_add_avf_rss_cfg(&pf->hw, vsi->idx, vrh->hena);
2574 		v_ret = ice_err_to_virt_err(status);
2575 	}
2576 
2577 	/* send the response to the VF */
2578 err:
2579 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_SET_RSS_HENA, v_ret,
2580 				     NULL, 0);
2581 }
2582 
2583 /**
2584  * ice_vc_query_rxdid - query RXDID supported by DDP package
2585  * @vf: pointer to VF info
2586  *
2587  * Called from VF to query a bitmap of supported flexible
2588  * descriptor RXDIDs of a DDP package.
2589  */
2590 static int ice_vc_query_rxdid(struct ice_vf *vf)
2591 {
2592 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2593 	struct virtchnl_supported_rxdids *rxdid = NULL;
2594 	struct ice_hw *hw = &vf->pf->hw;
2595 	struct ice_pf *pf = vf->pf;
2596 	int len = 0;
2597 	int ret, i;
2598 	u32 regval;
2599 
2600 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2601 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2602 		goto err;
2603 	}
2604 
2605 	if (!(vf->driver_caps & VIRTCHNL_VF_OFFLOAD_RX_FLEX_DESC)) {
2606 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2607 		goto err;
2608 	}
2609 
2610 	len = sizeof(struct virtchnl_supported_rxdids);
2611 	rxdid = kzalloc(len, GFP_KERNEL);
2612 	if (!rxdid) {
2613 		v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
2614 		len = 0;
2615 		goto err;
2616 	}
2617 
2618 	/* Read flexiflag registers to determine whether the
2619 	 * corresponding RXDID is configured and supported or not.
2620 	 * Since Legacy 16byte descriptor format is not supported,
2621 	 * start from Legacy 32byte descriptor.
2622 	 */
2623 	for (i = ICE_RXDID_LEGACY_1; i < ICE_FLEX_DESC_RXDID_MAX_NUM; i++) {
2624 		regval = rd32(hw, GLFLXP_RXDID_FLAGS(i, 0));
2625 		if ((regval >> GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_S)
2626 			& GLFLXP_RXDID_FLAGS_FLEXIFLAG_4N_M)
2627 			rxdid->supported_rxdids |= BIT(i);
2628 	}
2629 
2630 	pf->supported_rxdids = rxdid->supported_rxdids;
2631 
2632 err:
2633 	ret = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_SUPPORTED_RXDIDS,
2634 				    v_ret, (u8 *)rxdid, len);
2635 	kfree(rxdid);
2636 	return ret;
2637 }
2638 
2639 /**
2640  * ice_vf_init_vlan_stripping - enable/disable VLAN stripping on initialization
2641  * @vf: VF to enable/disable VLAN stripping for on initialization
2642  *
2643  * Set the default for VLAN stripping based on whether a port VLAN is configured
2644  * and the current VLAN mode of the device.
2645  */
2646 static int ice_vf_init_vlan_stripping(struct ice_vf *vf)
2647 {
2648 	struct ice_vsi *vsi = ice_get_vf_vsi(vf);
2649 
2650 	if (!vsi)
2651 		return -EINVAL;
2652 
2653 	/* don't modify stripping if port VLAN is configured in SVM since the
2654 	 * port VLAN is based on the inner/single VLAN in SVM
2655 	 */
2656 	if (ice_vf_is_port_vlan_ena(vf) && !ice_is_dvm_ena(&vsi->back->hw))
2657 		return 0;
2658 
2659 	if (ice_vf_vlan_offload_ena(vf->driver_caps))
2660 		return vsi->inner_vlan_ops.ena_stripping(vsi, ETH_P_8021Q);
2661 	else
2662 		return vsi->inner_vlan_ops.dis_stripping(vsi);
2663 }
2664 
2665 static u16 ice_vc_get_max_vlan_fltrs(struct ice_vf *vf)
2666 {
2667 	if (vf->trusted)
2668 		return VLAN_N_VID;
2669 	else
2670 		return ICE_MAX_VLAN_PER_VF;
2671 }
2672 
2673 /**
2674  * ice_vf_outer_vlan_not_allowed - check if outer VLAN can be used
2675  * @vf: VF that being checked for
2676  *
2677  * When the device is in double VLAN mode, check whether or not the outer VLAN
2678  * is allowed.
2679  */
2680 static bool ice_vf_outer_vlan_not_allowed(struct ice_vf *vf)
2681 {
2682 	if (ice_vf_is_port_vlan_ena(vf))
2683 		return true;
2684 
2685 	return false;
2686 }
2687 
2688 /**
2689  * ice_vc_set_dvm_caps - set VLAN capabilities when the device is in DVM
2690  * @vf: VF that capabilities are being set for
2691  * @caps: VLAN capabilities to populate
2692  *
2693  * Determine VLAN capabilities support based on whether a port VLAN is
2694  * configured. If a port VLAN is configured then the VF should use the inner
2695  * filtering/offload capabilities since the port VLAN is using the outer VLAN
2696  * capabilies.
2697  */
2698 static void
2699 ice_vc_set_dvm_caps(struct ice_vf *vf, struct virtchnl_vlan_caps *caps)
2700 {
2701 	struct virtchnl_vlan_supported_caps *supported_caps;
2702 
2703 	if (ice_vf_outer_vlan_not_allowed(vf)) {
2704 		/* until support for inner VLAN filtering is added when a port
2705 		 * VLAN is configured, only support software offloaded inner
2706 		 * VLANs when a port VLAN is confgured in DVM
2707 		 */
2708 		supported_caps = &caps->filtering.filtering_support;
2709 		supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2710 
2711 		supported_caps = &caps->offloads.stripping_support;
2712 		supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2713 					VIRTCHNL_VLAN_TOGGLE |
2714 					VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2715 		supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2716 
2717 		supported_caps = &caps->offloads.insertion_support;
2718 		supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2719 					VIRTCHNL_VLAN_TOGGLE |
2720 					VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2721 		supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2722 
2723 		caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
2724 		caps->offloads.ethertype_match =
2725 			VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
2726 	} else {
2727 		supported_caps = &caps->filtering.filtering_support;
2728 		supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2729 		supported_caps->outer = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2730 					VIRTCHNL_VLAN_ETHERTYPE_88A8 |
2731 					VIRTCHNL_VLAN_ETHERTYPE_9100 |
2732 					VIRTCHNL_VLAN_ETHERTYPE_AND;
2733 		caps->filtering.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2734 						 VIRTCHNL_VLAN_ETHERTYPE_88A8 |
2735 						 VIRTCHNL_VLAN_ETHERTYPE_9100;
2736 
2737 		supported_caps = &caps->offloads.stripping_support;
2738 		supported_caps->inner = VIRTCHNL_VLAN_TOGGLE |
2739 					VIRTCHNL_VLAN_ETHERTYPE_8100 |
2740 					VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2741 		supported_caps->outer = VIRTCHNL_VLAN_TOGGLE |
2742 					VIRTCHNL_VLAN_ETHERTYPE_8100 |
2743 					VIRTCHNL_VLAN_ETHERTYPE_88A8 |
2744 					VIRTCHNL_VLAN_ETHERTYPE_9100 |
2745 					VIRTCHNL_VLAN_ETHERTYPE_XOR |
2746 					VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2;
2747 
2748 		supported_caps = &caps->offloads.insertion_support;
2749 		supported_caps->inner = VIRTCHNL_VLAN_TOGGLE |
2750 					VIRTCHNL_VLAN_ETHERTYPE_8100 |
2751 					VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2752 		supported_caps->outer = VIRTCHNL_VLAN_TOGGLE |
2753 					VIRTCHNL_VLAN_ETHERTYPE_8100 |
2754 					VIRTCHNL_VLAN_ETHERTYPE_88A8 |
2755 					VIRTCHNL_VLAN_ETHERTYPE_9100 |
2756 					VIRTCHNL_VLAN_ETHERTYPE_XOR |
2757 					VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2;
2758 
2759 		caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
2760 
2761 		caps->offloads.ethertype_match =
2762 			VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
2763 	}
2764 
2765 	caps->filtering.max_filters = ice_vc_get_max_vlan_fltrs(vf);
2766 }
2767 
2768 /**
2769  * ice_vc_set_svm_caps - set VLAN capabilities when the device is in SVM
2770  * @vf: VF that capabilities are being set for
2771  * @caps: VLAN capabilities to populate
2772  *
2773  * Determine VLAN capabilities support based on whether a port VLAN is
2774  * configured. If a port VLAN is configured then the VF does not have any VLAN
2775  * filtering or offload capabilities since the port VLAN is using the inner VLAN
2776  * capabilities in single VLAN mode (SVM). Otherwise allow the VF to use inner
2777  * VLAN fitlering and offload capabilities.
2778  */
2779 static void
2780 ice_vc_set_svm_caps(struct ice_vf *vf, struct virtchnl_vlan_caps *caps)
2781 {
2782 	struct virtchnl_vlan_supported_caps *supported_caps;
2783 
2784 	if (ice_vf_is_port_vlan_ena(vf)) {
2785 		supported_caps = &caps->filtering.filtering_support;
2786 		supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2787 		supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2788 
2789 		supported_caps = &caps->offloads.stripping_support;
2790 		supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2791 		supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2792 
2793 		supported_caps = &caps->offloads.insertion_support;
2794 		supported_caps->inner = VIRTCHNL_VLAN_UNSUPPORTED;
2795 		supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2796 
2797 		caps->offloads.ethertype_init = VIRTCHNL_VLAN_UNSUPPORTED;
2798 		caps->offloads.ethertype_match = VIRTCHNL_VLAN_UNSUPPORTED;
2799 		caps->filtering.max_filters = 0;
2800 	} else {
2801 		supported_caps = &caps->filtering.filtering_support;
2802 		supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100;
2803 		supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2804 		caps->filtering.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
2805 
2806 		supported_caps = &caps->offloads.stripping_support;
2807 		supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2808 					VIRTCHNL_VLAN_TOGGLE |
2809 					VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2810 		supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2811 
2812 		supported_caps = &caps->offloads.insertion_support;
2813 		supported_caps->inner = VIRTCHNL_VLAN_ETHERTYPE_8100 |
2814 					VIRTCHNL_VLAN_TOGGLE |
2815 					VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1;
2816 		supported_caps->outer = VIRTCHNL_VLAN_UNSUPPORTED;
2817 
2818 		caps->offloads.ethertype_init = VIRTCHNL_VLAN_ETHERTYPE_8100;
2819 		caps->offloads.ethertype_match =
2820 			VIRTCHNL_ETHERTYPE_STRIPPING_MATCHES_INSERTION;
2821 		caps->filtering.max_filters = ice_vc_get_max_vlan_fltrs(vf);
2822 	}
2823 }
2824 
2825 /**
2826  * ice_vc_get_offload_vlan_v2_caps - determine VF's VLAN capabilities
2827  * @vf: VF to determine VLAN capabilities for
2828  *
2829  * This will only be called if the VF and PF successfully negotiated
2830  * VIRTCHNL_VF_OFFLOAD_VLAN_V2.
2831  *
2832  * Set VLAN capabilities based on the current VLAN mode and whether a port VLAN
2833  * is configured or not.
2834  */
2835 static int ice_vc_get_offload_vlan_v2_caps(struct ice_vf *vf)
2836 {
2837 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
2838 	struct virtchnl_vlan_caps *caps = NULL;
2839 	int err, len = 0;
2840 
2841 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
2842 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
2843 		goto out;
2844 	}
2845 
2846 	caps = kzalloc(sizeof(*caps), GFP_KERNEL);
2847 	if (!caps) {
2848 		v_ret = VIRTCHNL_STATUS_ERR_NO_MEMORY;
2849 		goto out;
2850 	}
2851 	len = sizeof(*caps);
2852 
2853 	if (ice_is_dvm_ena(&vf->pf->hw))
2854 		ice_vc_set_dvm_caps(vf, caps);
2855 	else
2856 		ice_vc_set_svm_caps(vf, caps);
2857 
2858 	/* store negotiated caps to prevent invalid VF messages */
2859 	memcpy(&vf->vlan_v2_caps, caps, sizeof(*caps));
2860 
2861 out:
2862 	err = ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS,
2863 				    v_ret, (u8 *)caps, len);
2864 	kfree(caps);
2865 	return err;
2866 }
2867 
2868 /**
2869  * ice_vc_validate_vlan_tpid - validate VLAN TPID
2870  * @filtering_caps: negotiated/supported VLAN filtering capabilities
2871  * @tpid: VLAN TPID used for validation
2872  *
2873  * Convert the VLAN TPID to a VIRTCHNL_VLAN_ETHERTYPE_* and then compare against
2874  * the negotiated/supported filtering caps to see if the VLAN TPID is valid.
2875  */
2876 static bool ice_vc_validate_vlan_tpid(u16 filtering_caps, u16 tpid)
2877 {
2878 	enum virtchnl_vlan_support vlan_ethertype = VIRTCHNL_VLAN_UNSUPPORTED;
2879 
2880 	switch (tpid) {
2881 	case ETH_P_8021Q:
2882 		vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_8100;
2883 		break;
2884 	case ETH_P_8021AD:
2885 		vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_88A8;
2886 		break;
2887 	case ETH_P_QINQ1:
2888 		vlan_ethertype = VIRTCHNL_VLAN_ETHERTYPE_9100;
2889 		break;
2890 	}
2891 
2892 	if (!(filtering_caps & vlan_ethertype))
2893 		return false;
2894 
2895 	return true;
2896 }
2897 
2898 /**
2899  * ice_vc_is_valid_vlan - validate the virtchnl_vlan
2900  * @vc_vlan: virtchnl_vlan to validate
2901  *
2902  * If the VLAN TCI and VLAN TPID are 0, then this filter is invalid, so return
2903  * false. Otherwise return true.
2904  */
2905 static bool ice_vc_is_valid_vlan(struct virtchnl_vlan *vc_vlan)
2906 {
2907 	if (!vc_vlan->tci || !vc_vlan->tpid)
2908 		return false;
2909 
2910 	return true;
2911 }
2912 
2913 /**
2914  * ice_vc_validate_vlan_filter_list - validate the filter list from the VF
2915  * @vfc: negotiated/supported VLAN filtering capabilities
2916  * @vfl: VLAN filter list from VF to validate
2917  *
2918  * Validate all of the filters in the VLAN filter list from the VF. If any of
2919  * the checks fail then return false. Otherwise return true.
2920  */
2921 static bool
2922 ice_vc_validate_vlan_filter_list(struct virtchnl_vlan_filtering_caps *vfc,
2923 				 struct virtchnl_vlan_filter_list_v2 *vfl)
2924 {
2925 	u16 i;
2926 
2927 	if (!vfl->num_elements)
2928 		return false;
2929 
2930 	for (i = 0; i < vfl->num_elements; i++) {
2931 		struct virtchnl_vlan_supported_caps *filtering_support =
2932 			&vfc->filtering_support;
2933 		struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
2934 		struct virtchnl_vlan *outer = &vlan_fltr->outer;
2935 		struct virtchnl_vlan *inner = &vlan_fltr->inner;
2936 
2937 		if ((ice_vc_is_valid_vlan(outer) &&
2938 		     filtering_support->outer == VIRTCHNL_VLAN_UNSUPPORTED) ||
2939 		    (ice_vc_is_valid_vlan(inner) &&
2940 		     filtering_support->inner == VIRTCHNL_VLAN_UNSUPPORTED))
2941 			return false;
2942 
2943 		if ((outer->tci_mask &&
2944 		     !(filtering_support->outer & VIRTCHNL_VLAN_FILTER_MASK)) ||
2945 		    (inner->tci_mask &&
2946 		     !(filtering_support->inner & VIRTCHNL_VLAN_FILTER_MASK)))
2947 			return false;
2948 
2949 		if (((outer->tci & VLAN_PRIO_MASK) &&
2950 		     !(filtering_support->outer & VIRTCHNL_VLAN_PRIO)) ||
2951 		    ((inner->tci & VLAN_PRIO_MASK) &&
2952 		     !(filtering_support->inner & VIRTCHNL_VLAN_PRIO)))
2953 			return false;
2954 
2955 		if ((ice_vc_is_valid_vlan(outer) &&
2956 		     !ice_vc_validate_vlan_tpid(filtering_support->outer,
2957 						outer->tpid)) ||
2958 		    (ice_vc_is_valid_vlan(inner) &&
2959 		     !ice_vc_validate_vlan_tpid(filtering_support->inner,
2960 						inner->tpid)))
2961 			return false;
2962 	}
2963 
2964 	return true;
2965 }
2966 
2967 /**
2968  * ice_vc_to_vlan - transform from struct virtchnl_vlan to struct ice_vlan
2969  * @vc_vlan: struct virtchnl_vlan to transform
2970  */
2971 static struct ice_vlan ice_vc_to_vlan(struct virtchnl_vlan *vc_vlan)
2972 {
2973 	struct ice_vlan vlan = { 0 };
2974 
2975 	vlan.prio = (vc_vlan->tci & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
2976 	vlan.vid = vc_vlan->tci & VLAN_VID_MASK;
2977 	vlan.tpid = vc_vlan->tpid;
2978 
2979 	return vlan;
2980 }
2981 
2982 /**
2983  * ice_vc_vlan_action - action to perform on the virthcnl_vlan
2984  * @vsi: VF's VSI used to perform the action
2985  * @vlan_action: function to perform the action with (i.e. add/del)
2986  * @vlan: VLAN filter to perform the action with
2987  */
2988 static int
2989 ice_vc_vlan_action(struct ice_vsi *vsi,
2990 		   int (*vlan_action)(struct ice_vsi *, struct ice_vlan *),
2991 		   struct ice_vlan *vlan)
2992 {
2993 	int err;
2994 
2995 	err = vlan_action(vsi, vlan);
2996 	if (err)
2997 		return err;
2998 
2999 	return 0;
3000 }
3001 
3002 /**
3003  * ice_vc_del_vlans - delete VLAN(s) from the virtchnl filter list
3004  * @vf: VF used to delete the VLAN(s)
3005  * @vsi: VF's VSI used to delete the VLAN(s)
3006  * @vfl: virthchnl filter list used to delete the filters
3007  */
3008 static int
3009 ice_vc_del_vlans(struct ice_vf *vf, struct ice_vsi *vsi,
3010 		 struct virtchnl_vlan_filter_list_v2 *vfl)
3011 {
3012 	bool vlan_promisc = ice_is_vlan_promisc_allowed(vf);
3013 	int err;
3014 	u16 i;
3015 
3016 	for (i = 0; i < vfl->num_elements; i++) {
3017 		struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
3018 		struct virtchnl_vlan *vc_vlan;
3019 
3020 		vc_vlan = &vlan_fltr->outer;
3021 		if (ice_vc_is_valid_vlan(vc_vlan)) {
3022 			struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
3023 
3024 			err = ice_vc_vlan_action(vsi,
3025 						 vsi->outer_vlan_ops.del_vlan,
3026 						 &vlan);
3027 			if (err)
3028 				return err;
3029 
3030 			if (vlan_promisc)
3031 				ice_vf_dis_vlan_promisc(vsi, &vlan);
3032 
3033 			/* Disable VLAN filtering when only VLAN 0 is left */
3034 			if (!ice_vsi_has_non_zero_vlans(vsi) && ice_is_dvm_ena(&vsi->back->hw)) {
3035 				err = vsi->outer_vlan_ops.dis_tx_filtering(vsi);
3036 				if (err)
3037 					return err;
3038 			}
3039 		}
3040 
3041 		vc_vlan = &vlan_fltr->inner;
3042 		if (ice_vc_is_valid_vlan(vc_vlan)) {
3043 			struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
3044 
3045 			err = ice_vc_vlan_action(vsi,
3046 						 vsi->inner_vlan_ops.del_vlan,
3047 						 &vlan);
3048 			if (err)
3049 				return err;
3050 
3051 			/* no support for VLAN promiscuous on inner VLAN unless
3052 			 * we are in Single VLAN Mode (SVM)
3053 			 */
3054 			if (!ice_is_dvm_ena(&vsi->back->hw)) {
3055 				if (vlan_promisc)
3056 					ice_vf_dis_vlan_promisc(vsi, &vlan);
3057 
3058 				/* Disable VLAN filtering when only VLAN 0 is left */
3059 				if (!ice_vsi_has_non_zero_vlans(vsi)) {
3060 					err = vsi->inner_vlan_ops.dis_tx_filtering(vsi);
3061 					if (err)
3062 						return err;
3063 				}
3064 			}
3065 		}
3066 	}
3067 
3068 	return 0;
3069 }
3070 
3071 /**
3072  * ice_vc_remove_vlan_v2_msg - virtchnl handler for VIRTCHNL_OP_DEL_VLAN_V2
3073  * @vf: VF the message was received from
3074  * @msg: message received from the VF
3075  */
3076 static int ice_vc_remove_vlan_v2_msg(struct ice_vf *vf, u8 *msg)
3077 {
3078 	struct virtchnl_vlan_filter_list_v2 *vfl =
3079 		(struct virtchnl_vlan_filter_list_v2 *)msg;
3080 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3081 	struct ice_vsi *vsi;
3082 
3083 	if (!ice_vc_validate_vlan_filter_list(&vf->vlan_v2_caps.filtering,
3084 					      vfl)) {
3085 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3086 		goto out;
3087 	}
3088 
3089 	if (!ice_vc_isvalid_vsi_id(vf, vfl->vport_id)) {
3090 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3091 		goto out;
3092 	}
3093 
3094 	vsi = ice_get_vf_vsi(vf);
3095 	if (!vsi) {
3096 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3097 		goto out;
3098 	}
3099 
3100 	if (ice_vc_del_vlans(vf, vsi, vfl))
3101 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3102 
3103 out:
3104 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_VLAN_V2, v_ret, NULL,
3105 				     0);
3106 }
3107 
3108 /**
3109  * ice_vc_add_vlans - add VLAN(s) from the virtchnl filter list
3110  * @vf: VF used to add the VLAN(s)
3111  * @vsi: VF's VSI used to add the VLAN(s)
3112  * @vfl: virthchnl filter list used to add the filters
3113  */
3114 static int
3115 ice_vc_add_vlans(struct ice_vf *vf, struct ice_vsi *vsi,
3116 		 struct virtchnl_vlan_filter_list_v2 *vfl)
3117 {
3118 	bool vlan_promisc = ice_is_vlan_promisc_allowed(vf);
3119 	int err;
3120 	u16 i;
3121 
3122 	for (i = 0; i < vfl->num_elements; i++) {
3123 		struct virtchnl_vlan_filter *vlan_fltr = &vfl->filters[i];
3124 		struct virtchnl_vlan *vc_vlan;
3125 
3126 		vc_vlan = &vlan_fltr->outer;
3127 		if (ice_vc_is_valid_vlan(vc_vlan)) {
3128 			struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
3129 
3130 			err = ice_vc_vlan_action(vsi,
3131 						 vsi->outer_vlan_ops.add_vlan,
3132 						 &vlan);
3133 			if (err)
3134 				return err;
3135 
3136 			if (vlan_promisc) {
3137 				err = ice_vf_ena_vlan_promisc(vsi, &vlan);
3138 				if (err)
3139 					return err;
3140 			}
3141 
3142 			/* Enable VLAN filtering on first non-zero VLAN */
3143 			if (vf->spoofchk && vlan.vid && ice_is_dvm_ena(&vsi->back->hw)) {
3144 				err = vsi->outer_vlan_ops.ena_tx_filtering(vsi);
3145 				if (err)
3146 					return err;
3147 			}
3148 		}
3149 
3150 		vc_vlan = &vlan_fltr->inner;
3151 		if (ice_vc_is_valid_vlan(vc_vlan)) {
3152 			struct ice_vlan vlan = ice_vc_to_vlan(vc_vlan);
3153 
3154 			err = ice_vc_vlan_action(vsi,
3155 						 vsi->inner_vlan_ops.add_vlan,
3156 						 &vlan);
3157 			if (err)
3158 				return err;
3159 
3160 			/* no support for VLAN promiscuous on inner VLAN unless
3161 			 * we are in Single VLAN Mode (SVM)
3162 			 */
3163 			if (!ice_is_dvm_ena(&vsi->back->hw)) {
3164 				if (vlan_promisc) {
3165 					err = ice_vf_ena_vlan_promisc(vsi, &vlan);
3166 					if (err)
3167 						return err;
3168 				}
3169 
3170 				/* Enable VLAN filtering on first non-zero VLAN */
3171 				if (vf->spoofchk && vlan.vid) {
3172 					err = vsi->inner_vlan_ops.ena_tx_filtering(vsi);
3173 					if (err)
3174 						return err;
3175 				}
3176 			}
3177 		}
3178 	}
3179 
3180 	return 0;
3181 }
3182 
3183 /**
3184  * ice_vc_validate_add_vlan_filter_list - validate add filter list from the VF
3185  * @vsi: VF VSI used to get number of existing VLAN filters
3186  * @vfc: negotiated/supported VLAN filtering capabilities
3187  * @vfl: VLAN filter list from VF to validate
3188  *
3189  * Validate all of the filters in the VLAN filter list from the VF during the
3190  * VIRTCHNL_OP_ADD_VLAN_V2 opcode. If any of the checks fail then return false.
3191  * Otherwise return true.
3192  */
3193 static bool
3194 ice_vc_validate_add_vlan_filter_list(struct ice_vsi *vsi,
3195 				     struct virtchnl_vlan_filtering_caps *vfc,
3196 				     struct virtchnl_vlan_filter_list_v2 *vfl)
3197 {
3198 	u16 num_requested_filters = ice_vsi_num_non_zero_vlans(vsi) +
3199 		vfl->num_elements;
3200 
3201 	if (num_requested_filters > vfc->max_filters)
3202 		return false;
3203 
3204 	return ice_vc_validate_vlan_filter_list(vfc, vfl);
3205 }
3206 
3207 /**
3208  * ice_vc_add_vlan_v2_msg - virtchnl handler for VIRTCHNL_OP_ADD_VLAN_V2
3209  * @vf: VF the message was received from
3210  * @msg: message received from the VF
3211  */
3212 static int ice_vc_add_vlan_v2_msg(struct ice_vf *vf, u8 *msg)
3213 {
3214 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3215 	struct virtchnl_vlan_filter_list_v2 *vfl =
3216 		(struct virtchnl_vlan_filter_list_v2 *)msg;
3217 	struct ice_vsi *vsi;
3218 
3219 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3220 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3221 		goto out;
3222 	}
3223 
3224 	if (!ice_vc_isvalid_vsi_id(vf, vfl->vport_id)) {
3225 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3226 		goto out;
3227 	}
3228 
3229 	vsi = ice_get_vf_vsi(vf);
3230 	if (!vsi) {
3231 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3232 		goto out;
3233 	}
3234 
3235 	if (!ice_vc_validate_add_vlan_filter_list(vsi,
3236 						  &vf->vlan_v2_caps.filtering,
3237 						  vfl)) {
3238 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3239 		goto out;
3240 	}
3241 
3242 	if (ice_vc_add_vlans(vf, vsi, vfl))
3243 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3244 
3245 out:
3246 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_VLAN_V2, v_ret, NULL,
3247 				     0);
3248 }
3249 
3250 /**
3251  * ice_vc_valid_vlan_setting - validate VLAN setting
3252  * @negotiated_settings: negotiated VLAN settings during VF init
3253  * @ethertype_setting: ethertype(s) requested for the VLAN setting
3254  */
3255 static bool
3256 ice_vc_valid_vlan_setting(u32 negotiated_settings, u32 ethertype_setting)
3257 {
3258 	if (ethertype_setting && !(negotiated_settings & ethertype_setting))
3259 		return false;
3260 
3261 	/* only allow a single VIRTCHNL_VLAN_ETHERTYPE if
3262 	 * VIRTHCNL_VLAN_ETHERTYPE_AND is not negotiated/supported
3263 	 */
3264 	if (!(negotiated_settings & VIRTCHNL_VLAN_ETHERTYPE_AND) &&
3265 	    hweight32(ethertype_setting) > 1)
3266 		return false;
3267 
3268 	/* ability to modify the VLAN setting was not negotiated */
3269 	if (!(negotiated_settings & VIRTCHNL_VLAN_TOGGLE))
3270 		return false;
3271 
3272 	return true;
3273 }
3274 
3275 /**
3276  * ice_vc_valid_vlan_setting_msg - validate the VLAN setting message
3277  * @caps: negotiated VLAN settings during VF init
3278  * @msg: message to validate
3279  *
3280  * Used to validate any VLAN virtchnl message sent as a
3281  * virtchnl_vlan_setting structure. Validates the message against the
3282  * negotiated/supported caps during VF driver init.
3283  */
3284 static bool
3285 ice_vc_valid_vlan_setting_msg(struct virtchnl_vlan_supported_caps *caps,
3286 			      struct virtchnl_vlan_setting *msg)
3287 {
3288 	if ((!msg->outer_ethertype_setting &&
3289 	     !msg->inner_ethertype_setting) ||
3290 	    (!caps->outer && !caps->inner))
3291 		return false;
3292 
3293 	if (msg->outer_ethertype_setting &&
3294 	    !ice_vc_valid_vlan_setting(caps->outer,
3295 				       msg->outer_ethertype_setting))
3296 		return false;
3297 
3298 	if (msg->inner_ethertype_setting &&
3299 	    !ice_vc_valid_vlan_setting(caps->inner,
3300 				       msg->inner_ethertype_setting))
3301 		return false;
3302 
3303 	return true;
3304 }
3305 
3306 /**
3307  * ice_vc_get_tpid - transform from VIRTCHNL_VLAN_ETHERTYPE_* to VLAN TPID
3308  * @ethertype_setting: VIRTCHNL_VLAN_ETHERTYPE_* used to get VLAN TPID
3309  * @tpid: VLAN TPID to populate
3310  */
3311 static int ice_vc_get_tpid(u32 ethertype_setting, u16 *tpid)
3312 {
3313 	switch (ethertype_setting) {
3314 	case VIRTCHNL_VLAN_ETHERTYPE_8100:
3315 		*tpid = ETH_P_8021Q;
3316 		break;
3317 	case VIRTCHNL_VLAN_ETHERTYPE_88A8:
3318 		*tpid = ETH_P_8021AD;
3319 		break;
3320 	case VIRTCHNL_VLAN_ETHERTYPE_9100:
3321 		*tpid = ETH_P_QINQ1;
3322 		break;
3323 	default:
3324 		*tpid = 0;
3325 		return -EINVAL;
3326 	}
3327 
3328 	return 0;
3329 }
3330 
3331 /**
3332  * ice_vc_ena_vlan_offload - enable VLAN offload based on the ethertype_setting
3333  * @vsi: VF's VSI used to enable the VLAN offload
3334  * @ena_offload: function used to enable the VLAN offload
3335  * @ethertype_setting: VIRTCHNL_VLAN_ETHERTYPE_* to enable offloads for
3336  */
3337 static int
3338 ice_vc_ena_vlan_offload(struct ice_vsi *vsi,
3339 			int (*ena_offload)(struct ice_vsi *vsi, u16 tpid),
3340 			u32 ethertype_setting)
3341 {
3342 	u16 tpid;
3343 	int err;
3344 
3345 	err = ice_vc_get_tpid(ethertype_setting, &tpid);
3346 	if (err)
3347 		return err;
3348 
3349 	err = ena_offload(vsi, tpid);
3350 	if (err)
3351 		return err;
3352 
3353 	return 0;
3354 }
3355 
3356 #define ICE_L2TSEL_QRX_CONTEXT_REG_IDX	3
3357 #define ICE_L2TSEL_BIT_OFFSET		23
3358 enum ice_l2tsel {
3359 	ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND,
3360 	ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG1,
3361 };
3362 
3363 /**
3364  * ice_vsi_update_l2tsel - update l2tsel field for all Rx rings on this VSI
3365  * @vsi: VSI used to update l2tsel on
3366  * @l2tsel: l2tsel setting requested
3367  *
3368  * Use the l2tsel setting to update all of the Rx queue context bits for l2tsel.
3369  * This will modify which descriptor field the first offloaded VLAN will be
3370  * stripped into.
3371  */
3372 static void ice_vsi_update_l2tsel(struct ice_vsi *vsi, enum ice_l2tsel l2tsel)
3373 {
3374 	struct ice_hw *hw = &vsi->back->hw;
3375 	u32 l2tsel_bit;
3376 	int i;
3377 
3378 	if (l2tsel == ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND)
3379 		l2tsel_bit = 0;
3380 	else
3381 		l2tsel_bit = BIT(ICE_L2TSEL_BIT_OFFSET);
3382 
3383 	for (i = 0; i < vsi->alloc_rxq; i++) {
3384 		u16 pfq = vsi->rxq_map[i];
3385 		u32 qrx_context_offset;
3386 		u32 regval;
3387 
3388 		qrx_context_offset =
3389 			QRX_CONTEXT(ICE_L2TSEL_QRX_CONTEXT_REG_IDX, pfq);
3390 
3391 		regval = rd32(hw, qrx_context_offset);
3392 		regval &= ~BIT(ICE_L2TSEL_BIT_OFFSET);
3393 		regval |= l2tsel_bit;
3394 		wr32(hw, qrx_context_offset, regval);
3395 	}
3396 }
3397 
3398 /**
3399  * ice_vc_ena_vlan_stripping_v2_msg
3400  * @vf: VF the message was received from
3401  * @msg: message received from the VF
3402  *
3403  * virthcnl handler for VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2
3404  */
3405 static int ice_vc_ena_vlan_stripping_v2_msg(struct ice_vf *vf, u8 *msg)
3406 {
3407 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3408 	struct virtchnl_vlan_supported_caps *stripping_support;
3409 	struct virtchnl_vlan_setting *strip_msg =
3410 		(struct virtchnl_vlan_setting *)msg;
3411 	u32 ethertype_setting;
3412 	struct ice_vsi *vsi;
3413 
3414 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3415 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3416 		goto out;
3417 	}
3418 
3419 	if (!ice_vc_isvalid_vsi_id(vf, strip_msg->vport_id)) {
3420 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3421 		goto out;
3422 	}
3423 
3424 	vsi = ice_get_vf_vsi(vf);
3425 	if (!vsi) {
3426 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3427 		goto out;
3428 	}
3429 
3430 	stripping_support = &vf->vlan_v2_caps.offloads.stripping_support;
3431 	if (!ice_vc_valid_vlan_setting_msg(stripping_support, strip_msg)) {
3432 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3433 		goto out;
3434 	}
3435 
3436 	ethertype_setting = strip_msg->outer_ethertype_setting;
3437 	if (ethertype_setting) {
3438 		if (ice_vc_ena_vlan_offload(vsi,
3439 					    vsi->outer_vlan_ops.ena_stripping,
3440 					    ethertype_setting)) {
3441 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3442 			goto out;
3443 		} else {
3444 			enum ice_l2tsel l2tsel =
3445 				ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG2_2ND;
3446 
3447 			/* PF tells the VF that the outer VLAN tag is always
3448 			 * extracted to VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 and
3449 			 * inner is always extracted to
3450 			 * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1. This is needed to
3451 			 * support outer stripping so the first tag always ends
3452 			 * up in L2TAG2_2ND and the second/inner tag, if
3453 			 * enabled, is extracted in L2TAG1.
3454 			 */
3455 			ice_vsi_update_l2tsel(vsi, l2tsel);
3456 		}
3457 	}
3458 
3459 	ethertype_setting = strip_msg->inner_ethertype_setting;
3460 	if (ethertype_setting &&
3461 	    ice_vc_ena_vlan_offload(vsi, vsi->inner_vlan_ops.ena_stripping,
3462 				    ethertype_setting)) {
3463 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3464 		goto out;
3465 	}
3466 
3467 out:
3468 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2,
3469 				     v_ret, NULL, 0);
3470 }
3471 
3472 /**
3473  * ice_vc_dis_vlan_stripping_v2_msg
3474  * @vf: VF the message was received from
3475  * @msg: message received from the VF
3476  *
3477  * virthcnl handler for VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2
3478  */
3479 static int ice_vc_dis_vlan_stripping_v2_msg(struct ice_vf *vf, u8 *msg)
3480 {
3481 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3482 	struct virtchnl_vlan_supported_caps *stripping_support;
3483 	struct virtchnl_vlan_setting *strip_msg =
3484 		(struct virtchnl_vlan_setting *)msg;
3485 	u32 ethertype_setting;
3486 	struct ice_vsi *vsi;
3487 
3488 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3489 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3490 		goto out;
3491 	}
3492 
3493 	if (!ice_vc_isvalid_vsi_id(vf, strip_msg->vport_id)) {
3494 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3495 		goto out;
3496 	}
3497 
3498 	vsi = ice_get_vf_vsi(vf);
3499 	if (!vsi) {
3500 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3501 		goto out;
3502 	}
3503 
3504 	stripping_support = &vf->vlan_v2_caps.offloads.stripping_support;
3505 	if (!ice_vc_valid_vlan_setting_msg(stripping_support, strip_msg)) {
3506 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3507 		goto out;
3508 	}
3509 
3510 	ethertype_setting = strip_msg->outer_ethertype_setting;
3511 	if (ethertype_setting) {
3512 		if (vsi->outer_vlan_ops.dis_stripping(vsi)) {
3513 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3514 			goto out;
3515 		} else {
3516 			enum ice_l2tsel l2tsel =
3517 				ICE_L2TSEL_EXTRACT_FIRST_TAG_L2TAG1;
3518 
3519 			/* PF tells the VF that the outer VLAN tag is always
3520 			 * extracted to VIRTCHNL_VLAN_TAG_LOCATION_L2TAG2_2 and
3521 			 * inner is always extracted to
3522 			 * VIRTCHNL_VLAN_TAG_LOCATION_L2TAG1. This is needed to
3523 			 * support inner stripping while outer stripping is
3524 			 * disabled so that the first and only tag is extracted
3525 			 * in L2TAG1.
3526 			 */
3527 			ice_vsi_update_l2tsel(vsi, l2tsel);
3528 		}
3529 	}
3530 
3531 	ethertype_setting = strip_msg->inner_ethertype_setting;
3532 	if (ethertype_setting && vsi->inner_vlan_ops.dis_stripping(vsi)) {
3533 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3534 		goto out;
3535 	}
3536 
3537 out:
3538 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2,
3539 				     v_ret, NULL, 0);
3540 }
3541 
3542 /**
3543  * ice_vc_ena_vlan_insertion_v2_msg
3544  * @vf: VF the message was received from
3545  * @msg: message received from the VF
3546  *
3547  * virthcnl handler for VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2
3548  */
3549 static int ice_vc_ena_vlan_insertion_v2_msg(struct ice_vf *vf, u8 *msg)
3550 {
3551 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3552 	struct virtchnl_vlan_supported_caps *insertion_support;
3553 	struct virtchnl_vlan_setting *insertion_msg =
3554 		(struct virtchnl_vlan_setting *)msg;
3555 	u32 ethertype_setting;
3556 	struct ice_vsi *vsi;
3557 
3558 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3559 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3560 		goto out;
3561 	}
3562 
3563 	if (!ice_vc_isvalid_vsi_id(vf, insertion_msg->vport_id)) {
3564 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3565 		goto out;
3566 	}
3567 
3568 	vsi = ice_get_vf_vsi(vf);
3569 	if (!vsi) {
3570 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3571 		goto out;
3572 	}
3573 
3574 	insertion_support = &vf->vlan_v2_caps.offloads.insertion_support;
3575 	if (!ice_vc_valid_vlan_setting_msg(insertion_support, insertion_msg)) {
3576 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3577 		goto out;
3578 	}
3579 
3580 	ethertype_setting = insertion_msg->outer_ethertype_setting;
3581 	if (ethertype_setting &&
3582 	    ice_vc_ena_vlan_offload(vsi, vsi->outer_vlan_ops.ena_insertion,
3583 				    ethertype_setting)) {
3584 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3585 		goto out;
3586 	}
3587 
3588 	ethertype_setting = insertion_msg->inner_ethertype_setting;
3589 	if (ethertype_setting &&
3590 	    ice_vc_ena_vlan_offload(vsi, vsi->inner_vlan_ops.ena_insertion,
3591 				    ethertype_setting)) {
3592 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3593 		goto out;
3594 	}
3595 
3596 out:
3597 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2,
3598 				     v_ret, NULL, 0);
3599 }
3600 
3601 /**
3602  * ice_vc_dis_vlan_insertion_v2_msg
3603  * @vf: VF the message was received from
3604  * @msg: message received from the VF
3605  *
3606  * virthcnl handler for VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2
3607  */
3608 static int ice_vc_dis_vlan_insertion_v2_msg(struct ice_vf *vf, u8 *msg)
3609 {
3610 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3611 	struct virtchnl_vlan_supported_caps *insertion_support;
3612 	struct virtchnl_vlan_setting *insertion_msg =
3613 		(struct virtchnl_vlan_setting *)msg;
3614 	u32 ethertype_setting;
3615 	struct ice_vsi *vsi;
3616 
3617 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
3618 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3619 		goto out;
3620 	}
3621 
3622 	if (!ice_vc_isvalid_vsi_id(vf, insertion_msg->vport_id)) {
3623 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3624 		goto out;
3625 	}
3626 
3627 	vsi = ice_get_vf_vsi(vf);
3628 	if (!vsi) {
3629 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3630 		goto out;
3631 	}
3632 
3633 	insertion_support = &vf->vlan_v2_caps.offloads.insertion_support;
3634 	if (!ice_vc_valid_vlan_setting_msg(insertion_support, insertion_msg)) {
3635 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3636 		goto out;
3637 	}
3638 
3639 	ethertype_setting = insertion_msg->outer_ethertype_setting;
3640 	if (ethertype_setting && vsi->outer_vlan_ops.dis_insertion(vsi)) {
3641 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3642 		goto out;
3643 	}
3644 
3645 	ethertype_setting = insertion_msg->inner_ethertype_setting;
3646 	if (ethertype_setting && vsi->inner_vlan_ops.dis_insertion(vsi)) {
3647 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3648 		goto out;
3649 	}
3650 
3651 out:
3652 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2,
3653 				     v_ret, NULL, 0);
3654 }
3655 
3656 static const struct ice_virtchnl_ops ice_virtchnl_dflt_ops = {
3657 	.get_ver_msg = ice_vc_get_ver_msg,
3658 	.get_vf_res_msg = ice_vc_get_vf_res_msg,
3659 	.reset_vf = ice_vc_reset_vf_msg,
3660 	.add_mac_addr_msg = ice_vc_add_mac_addr_msg,
3661 	.del_mac_addr_msg = ice_vc_del_mac_addr_msg,
3662 	.cfg_qs_msg = ice_vc_cfg_qs_msg,
3663 	.ena_qs_msg = ice_vc_ena_qs_msg,
3664 	.dis_qs_msg = ice_vc_dis_qs_msg,
3665 	.request_qs_msg = ice_vc_request_qs_msg,
3666 	.cfg_irq_map_msg = ice_vc_cfg_irq_map_msg,
3667 	.config_rss_key = ice_vc_config_rss_key,
3668 	.config_rss_lut = ice_vc_config_rss_lut,
3669 	.get_stats_msg = ice_vc_get_stats_msg,
3670 	.cfg_promiscuous_mode_msg = ice_vc_cfg_promiscuous_mode_msg,
3671 	.add_vlan_msg = ice_vc_add_vlan_msg,
3672 	.remove_vlan_msg = ice_vc_remove_vlan_msg,
3673 	.query_rxdid = ice_vc_query_rxdid,
3674 	.get_rss_hena = ice_vc_get_rss_hena,
3675 	.set_rss_hena_msg = ice_vc_set_rss_hena,
3676 	.ena_vlan_stripping = ice_vc_ena_vlan_stripping,
3677 	.dis_vlan_stripping = ice_vc_dis_vlan_stripping,
3678 	.handle_rss_cfg_msg = ice_vc_handle_rss_cfg,
3679 	.add_fdir_fltr_msg = ice_vc_add_fdir_fltr,
3680 	.del_fdir_fltr_msg = ice_vc_del_fdir_fltr,
3681 	.get_offload_vlan_v2_caps = ice_vc_get_offload_vlan_v2_caps,
3682 	.add_vlan_v2_msg = ice_vc_add_vlan_v2_msg,
3683 	.remove_vlan_v2_msg = ice_vc_remove_vlan_v2_msg,
3684 	.ena_vlan_stripping_v2_msg = ice_vc_ena_vlan_stripping_v2_msg,
3685 	.dis_vlan_stripping_v2_msg = ice_vc_dis_vlan_stripping_v2_msg,
3686 	.ena_vlan_insertion_v2_msg = ice_vc_ena_vlan_insertion_v2_msg,
3687 	.dis_vlan_insertion_v2_msg = ice_vc_dis_vlan_insertion_v2_msg,
3688 };
3689 
3690 /**
3691  * ice_virtchnl_set_dflt_ops - Switch to default virtchnl ops
3692  * @vf: the VF to switch ops
3693  */
3694 void ice_virtchnl_set_dflt_ops(struct ice_vf *vf)
3695 {
3696 	vf->virtchnl_ops = &ice_virtchnl_dflt_ops;
3697 }
3698 
3699 /**
3700  * ice_vc_repr_add_mac
3701  * @vf: pointer to VF
3702  * @msg: virtchannel message
3703  *
3704  * When port representors are created, we do not add MAC rule
3705  * to firmware, we store it so that PF could report same
3706  * MAC as VF.
3707  */
3708 static int ice_vc_repr_add_mac(struct ice_vf *vf, u8 *msg)
3709 {
3710 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
3711 	struct virtchnl_ether_addr_list *al =
3712 	    (struct virtchnl_ether_addr_list *)msg;
3713 	struct ice_vsi *vsi;
3714 	struct ice_pf *pf;
3715 	int i;
3716 
3717 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states) ||
3718 	    !ice_vc_isvalid_vsi_id(vf, al->vsi_id)) {
3719 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3720 		goto handle_mac_exit;
3721 	}
3722 
3723 	pf = vf->pf;
3724 
3725 	vsi = ice_get_vf_vsi(vf);
3726 	if (!vsi) {
3727 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
3728 		goto handle_mac_exit;
3729 	}
3730 
3731 	for (i = 0; i < al->num_elements; i++) {
3732 		u8 *mac_addr = al->list[i].addr;
3733 
3734 		if (!is_unicast_ether_addr(mac_addr) ||
3735 		    ether_addr_equal(mac_addr, vf->hw_lan_addr))
3736 			continue;
3737 
3738 		if (vf->pf_set_mac) {
3739 			dev_err(ice_pf_to_dev(pf), "VF attempting to override administratively set MAC address\n");
3740 			v_ret = VIRTCHNL_STATUS_ERR_NOT_SUPPORTED;
3741 			goto handle_mac_exit;
3742 		}
3743 
3744 		ice_vfhw_mac_add(vf, &al->list[i]);
3745 		vf->num_mac++;
3746 		break;
3747 	}
3748 
3749 handle_mac_exit:
3750 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_ADD_ETH_ADDR,
3751 				     v_ret, NULL, 0);
3752 }
3753 
3754 /**
3755  * ice_vc_repr_del_mac - response with success for deleting MAC
3756  * @vf: pointer to VF
3757  * @msg: virtchannel message
3758  *
3759  * Respond with success to not break normal VF flow.
3760  * For legacy VF driver try to update cached MAC address.
3761  */
3762 static int
3763 ice_vc_repr_del_mac(struct ice_vf __always_unused *vf, u8 __always_unused *msg)
3764 {
3765 	struct virtchnl_ether_addr_list *al =
3766 		(struct virtchnl_ether_addr_list *)msg;
3767 
3768 	ice_update_legacy_cached_mac(vf, &al->list[0]);
3769 
3770 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_DEL_ETH_ADDR,
3771 				     VIRTCHNL_STATUS_SUCCESS, NULL, 0);
3772 }
3773 
3774 static int
3775 ice_vc_repr_cfg_promiscuous_mode(struct ice_vf *vf, u8 __always_unused *msg)
3776 {
3777 	dev_dbg(ice_pf_to_dev(vf->pf),
3778 		"Can't config promiscuous mode in switchdev mode for VF %d\n",
3779 		vf->vf_id);
3780 	return ice_vc_send_msg_to_vf(vf, VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE,
3781 				     VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
3782 				     NULL, 0);
3783 }
3784 
3785 static const struct ice_virtchnl_ops ice_virtchnl_repr_ops = {
3786 	.get_ver_msg = ice_vc_get_ver_msg,
3787 	.get_vf_res_msg = ice_vc_get_vf_res_msg,
3788 	.reset_vf = ice_vc_reset_vf_msg,
3789 	.add_mac_addr_msg = ice_vc_repr_add_mac,
3790 	.del_mac_addr_msg = ice_vc_repr_del_mac,
3791 	.cfg_qs_msg = ice_vc_cfg_qs_msg,
3792 	.ena_qs_msg = ice_vc_ena_qs_msg,
3793 	.dis_qs_msg = ice_vc_dis_qs_msg,
3794 	.request_qs_msg = ice_vc_request_qs_msg,
3795 	.cfg_irq_map_msg = ice_vc_cfg_irq_map_msg,
3796 	.config_rss_key = ice_vc_config_rss_key,
3797 	.config_rss_lut = ice_vc_config_rss_lut,
3798 	.get_stats_msg = ice_vc_get_stats_msg,
3799 	.cfg_promiscuous_mode_msg = ice_vc_repr_cfg_promiscuous_mode,
3800 	.add_vlan_msg = ice_vc_add_vlan_msg,
3801 	.remove_vlan_msg = ice_vc_remove_vlan_msg,
3802 	.query_rxdid = ice_vc_query_rxdid,
3803 	.get_rss_hena = ice_vc_get_rss_hena,
3804 	.set_rss_hena_msg = ice_vc_set_rss_hena,
3805 	.ena_vlan_stripping = ice_vc_ena_vlan_stripping,
3806 	.dis_vlan_stripping = ice_vc_dis_vlan_stripping,
3807 	.handle_rss_cfg_msg = ice_vc_handle_rss_cfg,
3808 	.add_fdir_fltr_msg = ice_vc_add_fdir_fltr,
3809 	.del_fdir_fltr_msg = ice_vc_del_fdir_fltr,
3810 	.get_offload_vlan_v2_caps = ice_vc_get_offload_vlan_v2_caps,
3811 	.add_vlan_v2_msg = ice_vc_add_vlan_v2_msg,
3812 	.remove_vlan_v2_msg = ice_vc_remove_vlan_v2_msg,
3813 	.ena_vlan_stripping_v2_msg = ice_vc_ena_vlan_stripping_v2_msg,
3814 	.dis_vlan_stripping_v2_msg = ice_vc_dis_vlan_stripping_v2_msg,
3815 	.ena_vlan_insertion_v2_msg = ice_vc_ena_vlan_insertion_v2_msg,
3816 	.dis_vlan_insertion_v2_msg = ice_vc_dis_vlan_insertion_v2_msg,
3817 };
3818 
3819 /**
3820  * ice_virtchnl_set_repr_ops - Switch to representor virtchnl ops
3821  * @vf: the VF to switch ops
3822  */
3823 void ice_virtchnl_set_repr_ops(struct ice_vf *vf)
3824 {
3825 	vf->virtchnl_ops = &ice_virtchnl_repr_ops;
3826 }
3827 
3828 /**
3829  * ice_is_malicious_vf - check if this vf might be overflowing mailbox
3830  * @vf: the VF to check
3831  * @mbxdata: data about the state of the mailbox
3832  *
3833  * Detect if a given VF might be malicious and attempting to overflow the PF
3834  * mailbox. If so, log a warning message and ignore this event.
3835  */
3836 static bool
3837 ice_is_malicious_vf(struct ice_vf *vf, struct ice_mbx_data *mbxdata)
3838 {
3839 	bool report_malvf = false;
3840 	struct device *dev;
3841 	struct ice_pf *pf;
3842 	int status;
3843 
3844 	pf = vf->pf;
3845 	dev = ice_pf_to_dev(pf);
3846 
3847 	if (test_bit(ICE_VF_STATE_DIS, vf->vf_states))
3848 		return vf->mbx_info.malicious;
3849 
3850 	/* check to see if we have a newly malicious VF */
3851 	status = ice_mbx_vf_state_handler(&pf->hw, mbxdata, &vf->mbx_info,
3852 					  &report_malvf);
3853 	if (status)
3854 		dev_warn_ratelimited(dev, "Unable to check status of mailbox overflow for VF %u MAC %pM, status %d\n",
3855 				     vf->vf_id, vf->dev_lan_addr, status);
3856 
3857 	if (report_malvf) {
3858 		struct ice_vsi *pf_vsi = ice_get_main_vsi(pf);
3859 		u8 zero_addr[ETH_ALEN] = {};
3860 
3861 		dev_warn(dev, "VF MAC %pM on PF MAC %pM is generating asynchronous messages and may be overflowing the PF message queue. Please see the Adapter User Guide for more information\n",
3862 			 vf->dev_lan_addr,
3863 			 pf_vsi ? pf_vsi->netdev->dev_addr : zero_addr);
3864 	}
3865 
3866 	return vf->mbx_info.malicious;
3867 }
3868 
3869 /**
3870  * ice_vc_process_vf_msg - Process request from VF
3871  * @pf: pointer to the PF structure
3872  * @event: pointer to the AQ event
3873  * @mbxdata: information used to detect VF attempting mailbox overflow
3874  *
3875  * called from the common asq/arq handler to
3876  * process request from VF
3877  */
3878 void ice_vc_process_vf_msg(struct ice_pf *pf, struct ice_rq_event_info *event,
3879 			   struct ice_mbx_data *mbxdata)
3880 {
3881 	u32 v_opcode = le32_to_cpu(event->desc.cookie_high);
3882 	s16 vf_id = le16_to_cpu(event->desc.retval);
3883 	const struct ice_virtchnl_ops *ops;
3884 	u16 msglen = event->msg_len;
3885 	u8 *msg = event->msg_buf;
3886 	struct ice_vf *vf = NULL;
3887 	struct device *dev;
3888 	int err = 0;
3889 
3890 	dev = ice_pf_to_dev(pf);
3891 
3892 	vf = ice_get_vf_by_id(pf, vf_id);
3893 	if (!vf) {
3894 		dev_err(dev, "Unable to locate VF for message from VF ID %d, opcode %d, len %d\n",
3895 			vf_id, v_opcode, msglen);
3896 		return;
3897 	}
3898 
3899 	mutex_lock(&vf->cfg_lock);
3900 
3901 	/* Check if the VF is trying to overflow the mailbox */
3902 	if (ice_is_malicious_vf(vf, mbxdata))
3903 		goto finish;
3904 
3905 	/* Check if VF is disabled. */
3906 	if (test_bit(ICE_VF_STATE_DIS, vf->vf_states)) {
3907 		err = -EPERM;
3908 		goto error_handler;
3909 	}
3910 
3911 	ops = vf->virtchnl_ops;
3912 
3913 	/* Perform basic checks on the msg */
3914 	err = virtchnl_vc_validate_vf_msg(&vf->vf_ver, v_opcode, msg, msglen);
3915 	if (err) {
3916 		if (err == VIRTCHNL_STATUS_ERR_PARAM)
3917 			err = -EPERM;
3918 		else
3919 			err = -EINVAL;
3920 	}
3921 
3922 error_handler:
3923 	if (err) {
3924 		ice_vc_send_msg_to_vf(vf, v_opcode, VIRTCHNL_STATUS_ERR_PARAM,
3925 				      NULL, 0);
3926 		dev_err(dev, "Invalid message from VF %d, opcode %d, len %d, error %d\n",
3927 			vf_id, v_opcode, msglen, err);
3928 		goto finish;
3929 	}
3930 
3931 	if (!ice_vc_is_opcode_allowed(vf, v_opcode)) {
3932 		ice_vc_send_msg_to_vf(vf, v_opcode,
3933 				      VIRTCHNL_STATUS_ERR_NOT_SUPPORTED, NULL,
3934 				      0);
3935 		goto finish;
3936 	}
3937 
3938 	switch (v_opcode) {
3939 	case VIRTCHNL_OP_VERSION:
3940 		err = ops->get_ver_msg(vf, msg);
3941 		break;
3942 	case VIRTCHNL_OP_GET_VF_RESOURCES:
3943 		err = ops->get_vf_res_msg(vf, msg);
3944 		if (ice_vf_init_vlan_stripping(vf))
3945 			dev_dbg(dev, "Failed to initialize VLAN stripping for VF %d\n",
3946 				vf->vf_id);
3947 		ice_vc_notify_vf_link_state(vf);
3948 		break;
3949 	case VIRTCHNL_OP_RESET_VF:
3950 		clear_bit(ICE_VF_STATE_ACTIVE, vf->vf_states);
3951 		ops->reset_vf(vf);
3952 		break;
3953 	case VIRTCHNL_OP_ADD_ETH_ADDR:
3954 		err = ops->add_mac_addr_msg(vf, msg);
3955 		break;
3956 	case VIRTCHNL_OP_DEL_ETH_ADDR:
3957 		err = ops->del_mac_addr_msg(vf, msg);
3958 		break;
3959 	case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
3960 		err = ops->cfg_qs_msg(vf, msg);
3961 		break;
3962 	case VIRTCHNL_OP_ENABLE_QUEUES:
3963 		err = ops->ena_qs_msg(vf, msg);
3964 		ice_vc_notify_vf_link_state(vf);
3965 		break;
3966 	case VIRTCHNL_OP_DISABLE_QUEUES:
3967 		err = ops->dis_qs_msg(vf, msg);
3968 		break;
3969 	case VIRTCHNL_OP_REQUEST_QUEUES:
3970 		err = ops->request_qs_msg(vf, msg);
3971 		break;
3972 	case VIRTCHNL_OP_CONFIG_IRQ_MAP:
3973 		err = ops->cfg_irq_map_msg(vf, msg);
3974 		break;
3975 	case VIRTCHNL_OP_CONFIG_RSS_KEY:
3976 		err = ops->config_rss_key(vf, msg);
3977 		break;
3978 	case VIRTCHNL_OP_CONFIG_RSS_LUT:
3979 		err = ops->config_rss_lut(vf, msg);
3980 		break;
3981 	case VIRTCHNL_OP_GET_STATS:
3982 		err = ops->get_stats_msg(vf, msg);
3983 		break;
3984 	case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
3985 		err = ops->cfg_promiscuous_mode_msg(vf, msg);
3986 		break;
3987 	case VIRTCHNL_OP_ADD_VLAN:
3988 		err = ops->add_vlan_msg(vf, msg);
3989 		break;
3990 	case VIRTCHNL_OP_DEL_VLAN:
3991 		err = ops->remove_vlan_msg(vf, msg);
3992 		break;
3993 	case VIRTCHNL_OP_GET_SUPPORTED_RXDIDS:
3994 		err = ops->query_rxdid(vf);
3995 		break;
3996 	case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
3997 		err = ops->get_rss_hena(vf);
3998 		break;
3999 	case VIRTCHNL_OP_SET_RSS_HENA:
4000 		err = ops->set_rss_hena_msg(vf, msg);
4001 		break;
4002 	case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING:
4003 		err = ops->ena_vlan_stripping(vf);
4004 		break;
4005 	case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING:
4006 		err = ops->dis_vlan_stripping(vf);
4007 		break;
4008 	case VIRTCHNL_OP_ADD_FDIR_FILTER:
4009 		err = ops->add_fdir_fltr_msg(vf, msg);
4010 		break;
4011 	case VIRTCHNL_OP_DEL_FDIR_FILTER:
4012 		err = ops->del_fdir_fltr_msg(vf, msg);
4013 		break;
4014 	case VIRTCHNL_OP_ADD_RSS_CFG:
4015 		err = ops->handle_rss_cfg_msg(vf, msg, true);
4016 		break;
4017 	case VIRTCHNL_OP_DEL_RSS_CFG:
4018 		err = ops->handle_rss_cfg_msg(vf, msg, false);
4019 		break;
4020 	case VIRTCHNL_OP_GET_OFFLOAD_VLAN_V2_CAPS:
4021 		err = ops->get_offload_vlan_v2_caps(vf);
4022 		break;
4023 	case VIRTCHNL_OP_ADD_VLAN_V2:
4024 		err = ops->add_vlan_v2_msg(vf, msg);
4025 		break;
4026 	case VIRTCHNL_OP_DEL_VLAN_V2:
4027 		err = ops->remove_vlan_v2_msg(vf, msg);
4028 		break;
4029 	case VIRTCHNL_OP_ENABLE_VLAN_STRIPPING_V2:
4030 		err = ops->ena_vlan_stripping_v2_msg(vf, msg);
4031 		break;
4032 	case VIRTCHNL_OP_DISABLE_VLAN_STRIPPING_V2:
4033 		err = ops->dis_vlan_stripping_v2_msg(vf, msg);
4034 		break;
4035 	case VIRTCHNL_OP_ENABLE_VLAN_INSERTION_V2:
4036 		err = ops->ena_vlan_insertion_v2_msg(vf, msg);
4037 		break;
4038 	case VIRTCHNL_OP_DISABLE_VLAN_INSERTION_V2:
4039 		err = ops->dis_vlan_insertion_v2_msg(vf, msg);
4040 		break;
4041 	case VIRTCHNL_OP_UNKNOWN:
4042 	default:
4043 		dev_err(dev, "Unsupported opcode %d from VF %d\n", v_opcode,
4044 			vf_id);
4045 		err = ice_vc_send_msg_to_vf(vf, v_opcode,
4046 					    VIRTCHNL_STATUS_ERR_NOT_SUPPORTED,
4047 					    NULL, 0);
4048 		break;
4049 	}
4050 	if (err) {
4051 		/* Helper function cares less about error return values here
4052 		 * as it is busy with pending work.
4053 		 */
4054 		dev_info(dev, "PF failed to honor VF %d, opcode %d, error %d\n",
4055 			 vf_id, v_opcode, err);
4056 	}
4057 
4058 finish:
4059 	mutex_unlock(&vf->cfg_lock);
4060 	ice_put_vf(vf);
4061 }
4062