1 // SPDX-License-Identifier: GPL-2.0
2 /* Copyright (c) 2018, Intel Corporation. */
4 #include "ice_switch.h"
6 #define ICE_ETH_DA_OFFSET 0
7 #define ICE_ETH_ETHTYPE_OFFSET 12
8 #define ICE_ETH_VLAN_TCI_OFFSET 14
9 #define ICE_MAX_VLAN_ID 0xFFF
11 /* Dummy ethernet header needed in the ice_aqc_sw_rules_elem
12 * struct to configure any switch filter rules.
13 * {DA (6 bytes), SA(6 bytes),
14 * Ether type (2 bytes for header without VLAN tag) OR
15 * VLAN tag (4 bytes for header with VLAN tag) }
17 * Word on Hardcoded values
18 * byte 0 = 0x2: to identify it as locally administered DA MAC
19 * byte 6 = 0x2: to identify it as locally administered SA MAC
20 * byte 12 = 0x81 & byte 13 = 0x00:
21 * In case of VLAN filter first two bytes defines ether type (0x8100)
22 * and remaining two bytes are placeholder for programming a given VLAN ID
23 * In case of Ether type filter it is treated as header without VLAN tag
24 * and byte 12 and 13 is used to program a given Ether type instead
26 #define DUMMY_ETH_HDR_LEN 16
27 static const u8 dummy_eth_header[DUMMY_ETH_HDR_LEN] = { 0x2, 0, 0, 0, 0, 0,
31 #define ICE_SW_RULE_RX_TX_ETH_HDR_SIZE \
32 (offsetof(struct ice_aqc_sw_rules_elem, pdata.lkup_tx_rx.hdr) + \
33 (DUMMY_ETH_HDR_LEN * \
34 sizeof(((struct ice_sw_rule_lkup_rx_tx *)0)->hdr[0])))
35 #define ICE_SW_RULE_RX_TX_NO_HDR_SIZE \
36 (offsetof(struct ice_aqc_sw_rules_elem, pdata.lkup_tx_rx.hdr))
37 #define ICE_SW_RULE_LG_ACT_SIZE(n) \
38 (offsetof(struct ice_aqc_sw_rules_elem, pdata.lg_act.act) + \
39 ((n) * sizeof(((struct ice_sw_rule_lg_act *)0)->act[0])))
40 #define ICE_SW_RULE_VSI_LIST_SIZE(n) \
41 (offsetof(struct ice_aqc_sw_rules_elem, pdata.vsi_list.vsi) + \
42 ((n) * sizeof(((struct ice_sw_rule_vsi_list *)0)->vsi[0])))
45 * ice_init_def_sw_recp - initialize the recipe book keeping tables
46 * @hw: pointer to the HW struct
48 * Allocate memory for the entire recipe table and initialize the structures/
49 * entries corresponding to basic recipes.
51 enum ice_status ice_init_def_sw_recp(struct ice_hw *hw)
53 struct ice_sw_recipe *recps;
56 recps = devm_kcalloc(ice_hw_to_dev(hw), ICE_MAX_NUM_RECIPES,
57 sizeof(*recps), GFP_KERNEL);
59 return ICE_ERR_NO_MEMORY;
61 for (i = 0; i < ICE_SW_LKUP_LAST; i++) {
62 recps[i].root_rid = i;
63 INIT_LIST_HEAD(&recps[i].filt_rules);
64 INIT_LIST_HEAD(&recps[i].filt_replay_rules);
65 mutex_init(&recps[i].filt_rule_lock);
68 hw->switch_info->recp_list = recps;
74 * ice_aq_get_sw_cfg - get switch configuration
75 * @hw: pointer to the hardware structure
76 * @buf: pointer to the result buffer
77 * @buf_size: length of the buffer available for response
78 * @req_desc: pointer to requested descriptor
79 * @num_elems: pointer to number of elements
80 * @cd: pointer to command details structure or NULL
82 * Get switch configuration (0x0200) to be placed in buf.
83 * This admin command returns information such as initial VSI/port number
84 * and switch ID it belongs to.
86 * NOTE: *req_desc is both an input/output parameter.
87 * The caller of this function first calls this function with *request_desc set
88 * to 0. If the response from f/w has *req_desc set to 0, all the switch
89 * configuration information has been returned; if non-zero (meaning not all
90 * the information was returned), the caller should call this function again
91 * with *req_desc set to the previous value returned by f/w to get the
92 * next block of switch configuration information.
94 * *num_elems is output only parameter. This reflects the number of elements
95 * in response buffer. The caller of this function to use *num_elems while
96 * parsing the response buffer.
98 static enum ice_status
99 ice_aq_get_sw_cfg(struct ice_hw *hw, struct ice_aqc_get_sw_cfg_resp_elem *buf,
100 u16 buf_size, u16 *req_desc, u16 *num_elems,
101 struct ice_sq_cd *cd)
103 struct ice_aqc_get_sw_cfg *cmd;
104 struct ice_aq_desc desc;
105 enum ice_status status;
107 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_sw_cfg);
108 cmd = &desc.params.get_sw_conf;
109 cmd->element = cpu_to_le16(*req_desc);
111 status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
113 *req_desc = le16_to_cpu(cmd->element);
114 *num_elems = le16_to_cpu(cmd->num_elems);
122 * @hw: pointer to the HW struct
123 * @vsi_ctx: pointer to a VSI context struct
124 * @cd: pointer to command details structure or NULL
126 * Add a VSI context to the hardware (0x0210)
128 static enum ice_status
129 ice_aq_add_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
130 struct ice_sq_cd *cd)
132 struct ice_aqc_add_update_free_vsi_resp *res;
133 struct ice_aqc_add_get_update_free_vsi *cmd;
134 struct ice_aq_desc desc;
135 enum ice_status status;
137 cmd = &desc.params.vsi_cmd;
138 res = &desc.params.add_update_free_vsi_res;
140 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_add_vsi);
142 if (!vsi_ctx->alloc_from_pool)
143 cmd->vsi_num = cpu_to_le16(vsi_ctx->vsi_num |
144 ICE_AQ_VSI_IS_VALID);
145 cmd->vf_id = vsi_ctx->vf_num;
147 cmd->vsi_flags = cpu_to_le16(vsi_ctx->flags);
149 desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
151 status = ice_aq_send_cmd(hw, &desc, &vsi_ctx->info,
152 sizeof(vsi_ctx->info), cd);
155 vsi_ctx->vsi_num = le16_to_cpu(res->vsi_num) & ICE_AQ_VSI_NUM_M;
156 vsi_ctx->vsis_allocd = le16_to_cpu(res->vsi_used);
157 vsi_ctx->vsis_unallocated = le16_to_cpu(res->vsi_free);
165 * @hw: pointer to the HW struct
166 * @vsi_ctx: pointer to a VSI context struct
167 * @keep_vsi_alloc: keep VSI allocation as part of this PF's resources
168 * @cd: pointer to command details structure or NULL
170 * Free VSI context info from hardware (0x0213)
172 static enum ice_status
173 ice_aq_free_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
174 bool keep_vsi_alloc, struct ice_sq_cd *cd)
176 struct ice_aqc_add_update_free_vsi_resp *resp;
177 struct ice_aqc_add_get_update_free_vsi *cmd;
178 struct ice_aq_desc desc;
179 enum ice_status status;
181 cmd = &desc.params.vsi_cmd;
182 resp = &desc.params.add_update_free_vsi_res;
184 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_free_vsi);
186 cmd->vsi_num = cpu_to_le16(vsi_ctx->vsi_num | ICE_AQ_VSI_IS_VALID);
188 cmd->cmd_flags = cpu_to_le16(ICE_AQ_VSI_KEEP_ALLOC);
190 status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
192 vsi_ctx->vsis_allocd = le16_to_cpu(resp->vsi_used);
193 vsi_ctx->vsis_unallocated = le16_to_cpu(resp->vsi_free);
201 * @hw: pointer to the HW struct
202 * @vsi_ctx: pointer to a VSI context struct
203 * @cd: pointer to command details structure or NULL
205 * Update VSI context in the hardware (0x0211)
207 static enum ice_status
208 ice_aq_update_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
209 struct ice_sq_cd *cd)
211 struct ice_aqc_add_update_free_vsi_resp *resp;
212 struct ice_aqc_add_get_update_free_vsi *cmd;
213 struct ice_aq_desc desc;
214 enum ice_status status;
216 cmd = &desc.params.vsi_cmd;
217 resp = &desc.params.add_update_free_vsi_res;
219 ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_update_vsi);
221 cmd->vsi_num = cpu_to_le16(vsi_ctx->vsi_num | ICE_AQ_VSI_IS_VALID);
223 desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
225 status = ice_aq_send_cmd(hw, &desc, &vsi_ctx->info,
226 sizeof(vsi_ctx->info), cd);
229 vsi_ctx->vsis_allocd = le16_to_cpu(resp->vsi_used);
230 vsi_ctx->vsis_unallocated = le16_to_cpu(resp->vsi_free);
237 * ice_is_vsi_valid - check whether the VSI is valid or not
238 * @hw: pointer to the HW struct
239 * @vsi_handle: VSI handle
241 * check whether the VSI is valid or not
243 bool ice_is_vsi_valid(struct ice_hw *hw, u16 vsi_handle)
245 return vsi_handle < ICE_MAX_VSI && hw->vsi_ctx[vsi_handle];
249 * ice_get_hw_vsi_num - return the HW VSI number
250 * @hw: pointer to the HW struct
251 * @vsi_handle: VSI handle
253 * return the HW VSI number
254 * Caution: call this function only if VSI is valid (ice_is_vsi_valid)
256 u16 ice_get_hw_vsi_num(struct ice_hw *hw, u16 vsi_handle)
258 return hw->vsi_ctx[vsi_handle]->vsi_num;
262 * ice_get_vsi_ctx - return the VSI context entry for a given VSI handle
263 * @hw: pointer to the HW struct
264 * @vsi_handle: VSI handle
266 * return the VSI context entry for a given VSI handle
268 struct ice_vsi_ctx *ice_get_vsi_ctx(struct ice_hw *hw, u16 vsi_handle)
270 return (vsi_handle >= ICE_MAX_VSI) ? NULL : hw->vsi_ctx[vsi_handle];
274 * ice_save_vsi_ctx - save the VSI context for a given VSI handle
275 * @hw: pointer to the HW struct
276 * @vsi_handle: VSI handle
277 * @vsi: VSI context pointer
279 * save the VSI context entry for a given VSI handle
282 ice_save_vsi_ctx(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi)
284 hw->vsi_ctx[vsi_handle] = vsi;
288 * ice_clear_vsi_q_ctx - clear VSI queue contexts for all TCs
289 * @hw: pointer to the HW struct
290 * @vsi_handle: VSI handle
292 static void ice_clear_vsi_q_ctx(struct ice_hw *hw, u16 vsi_handle)
294 struct ice_vsi_ctx *vsi;
297 vsi = ice_get_vsi_ctx(hw, vsi_handle);
300 ice_for_each_traffic_class(i) {
301 if (vsi->lan_q_ctx[i]) {
302 devm_kfree(ice_hw_to_dev(hw), vsi->lan_q_ctx[i]);
303 vsi->lan_q_ctx[i] = NULL;
309 * ice_clear_vsi_ctx - clear the VSI context entry
310 * @hw: pointer to the HW struct
311 * @vsi_handle: VSI handle
313 * clear the VSI context entry
315 static void ice_clear_vsi_ctx(struct ice_hw *hw, u16 vsi_handle)
317 struct ice_vsi_ctx *vsi;
319 vsi = ice_get_vsi_ctx(hw, vsi_handle);
321 ice_clear_vsi_q_ctx(hw, vsi_handle);
322 devm_kfree(ice_hw_to_dev(hw), vsi);
323 hw->vsi_ctx[vsi_handle] = NULL;
328 * ice_clear_all_vsi_ctx - clear all the VSI context entries
329 * @hw: pointer to the HW struct
331 void ice_clear_all_vsi_ctx(struct ice_hw *hw)
335 for (i = 0; i < ICE_MAX_VSI; i++)
336 ice_clear_vsi_ctx(hw, i);
340 * ice_add_vsi - add VSI context to the hardware and VSI handle list
341 * @hw: pointer to the HW struct
342 * @vsi_handle: unique VSI handle provided by drivers
343 * @vsi_ctx: pointer to a VSI context struct
344 * @cd: pointer to command details structure or NULL
346 * Add a VSI context to the hardware also add it into the VSI handle list.
347 * If this function gets called after reset for existing VSIs then update
348 * with the new HW VSI number in the corresponding VSI handle list entry.
351 ice_add_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
352 struct ice_sq_cd *cd)
354 struct ice_vsi_ctx *tmp_vsi_ctx;
355 enum ice_status status;
357 if (vsi_handle >= ICE_MAX_VSI)
358 return ICE_ERR_PARAM;
359 status = ice_aq_add_vsi(hw, vsi_ctx, cd);
362 tmp_vsi_ctx = ice_get_vsi_ctx(hw, vsi_handle);
364 /* Create a new VSI context */
365 tmp_vsi_ctx = devm_kzalloc(ice_hw_to_dev(hw),
366 sizeof(*tmp_vsi_ctx), GFP_KERNEL);
368 ice_aq_free_vsi(hw, vsi_ctx, false, cd);
369 return ICE_ERR_NO_MEMORY;
371 *tmp_vsi_ctx = *vsi_ctx;
372 ice_save_vsi_ctx(hw, vsi_handle, tmp_vsi_ctx);
374 /* update with new HW VSI num */
375 tmp_vsi_ctx->vsi_num = vsi_ctx->vsi_num;
382 * ice_free_vsi- free VSI context from hardware and VSI handle list
383 * @hw: pointer to the HW struct
384 * @vsi_handle: unique VSI handle
385 * @vsi_ctx: pointer to a VSI context struct
386 * @keep_vsi_alloc: keep VSI allocation as part of this PF's resources
387 * @cd: pointer to command details structure or NULL
389 * Free VSI context info from hardware as well as from VSI handle list
392 ice_free_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
393 bool keep_vsi_alloc, struct ice_sq_cd *cd)
395 enum ice_status status;
397 if (!ice_is_vsi_valid(hw, vsi_handle))
398 return ICE_ERR_PARAM;
399 vsi_ctx->vsi_num = ice_get_hw_vsi_num(hw, vsi_handle);
400 status = ice_aq_free_vsi(hw, vsi_ctx, keep_vsi_alloc, cd);
402 ice_clear_vsi_ctx(hw, vsi_handle);
408 * @hw: pointer to the HW struct
409 * @vsi_handle: unique VSI handle
410 * @vsi_ctx: pointer to a VSI context struct
411 * @cd: pointer to command details structure or NULL
413 * Update VSI context in the hardware
416 ice_update_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
417 struct ice_sq_cd *cd)
419 if (!ice_is_vsi_valid(hw, vsi_handle))
420 return ICE_ERR_PARAM;
421 vsi_ctx->vsi_num = ice_get_hw_vsi_num(hw, vsi_handle);
422 return ice_aq_update_vsi(hw, vsi_ctx, cd);
426 * ice_aq_alloc_free_vsi_list
427 * @hw: pointer to the HW struct
428 * @vsi_list_id: VSI list ID returned or used for lookup
429 * @lkup_type: switch rule filter lookup type
430 * @opc: switch rules population command type - pass in the command opcode
432 * allocates or free a VSI list resource
434 static enum ice_status
435 ice_aq_alloc_free_vsi_list(struct ice_hw *hw, u16 *vsi_list_id,
436 enum ice_sw_lkup_type lkup_type,
437 enum ice_adminq_opc opc)
439 struct ice_aqc_alloc_free_res_elem *sw_buf;
440 struct ice_aqc_res_elem *vsi_ele;
441 enum ice_status status;
444 buf_len = struct_size(sw_buf, elem, 1);
445 sw_buf = devm_kzalloc(ice_hw_to_dev(hw), buf_len, GFP_KERNEL);
447 return ICE_ERR_NO_MEMORY;
448 sw_buf->num_elems = cpu_to_le16(1);
450 if (lkup_type == ICE_SW_LKUP_MAC ||
451 lkup_type == ICE_SW_LKUP_MAC_VLAN ||
452 lkup_type == ICE_SW_LKUP_ETHERTYPE ||
453 lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC ||
454 lkup_type == ICE_SW_LKUP_PROMISC ||
455 lkup_type == ICE_SW_LKUP_PROMISC_VLAN) {
456 sw_buf->res_type = cpu_to_le16(ICE_AQC_RES_TYPE_VSI_LIST_REP);
457 } else if (lkup_type == ICE_SW_LKUP_VLAN) {
459 cpu_to_le16(ICE_AQC_RES_TYPE_VSI_LIST_PRUNE);
461 status = ICE_ERR_PARAM;
462 goto ice_aq_alloc_free_vsi_list_exit;
465 if (opc == ice_aqc_opc_free_res)
466 sw_buf->elem[0].e.sw_resp = cpu_to_le16(*vsi_list_id);
468 status = ice_aq_alloc_free_res(hw, 1, sw_buf, buf_len, opc, NULL);
470 goto ice_aq_alloc_free_vsi_list_exit;
472 if (opc == ice_aqc_opc_alloc_res) {
473 vsi_ele = &sw_buf->elem[0];
474 *vsi_list_id = le16_to_cpu(vsi_ele->e.sw_resp);
477 ice_aq_alloc_free_vsi_list_exit:
478 devm_kfree(ice_hw_to_dev(hw), sw_buf);
483 * ice_aq_sw_rules - add/update/remove switch rules
484 * @hw: pointer to the HW struct
485 * @rule_list: pointer to switch rule population list
486 * @rule_list_sz: total size of the rule list in bytes
487 * @num_rules: number of switch rules in the rule_list
488 * @opc: switch rules population command type - pass in the command opcode
489 * @cd: pointer to command details structure or NULL
491 * Add(0x02a0)/Update(0x02a1)/Remove(0x02a2) switch rules commands to firmware
493 static enum ice_status
494 ice_aq_sw_rules(struct ice_hw *hw, void *rule_list, u16 rule_list_sz,
495 u8 num_rules, enum ice_adminq_opc opc, struct ice_sq_cd *cd)
497 struct ice_aq_desc desc;
498 enum ice_status status;
500 if (opc != ice_aqc_opc_add_sw_rules &&
501 opc != ice_aqc_opc_update_sw_rules &&
502 opc != ice_aqc_opc_remove_sw_rules)
503 return ICE_ERR_PARAM;
505 ice_fill_dflt_direct_cmd_desc(&desc, opc);
507 desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
508 desc.params.sw_rules.num_rules_fltr_entry_index =
509 cpu_to_le16(num_rules);
510 status = ice_aq_send_cmd(hw, &desc, rule_list, rule_list_sz, cd);
511 if (opc != ice_aqc_opc_add_sw_rules &&
512 hw->adminq.sq_last_status == ICE_AQ_RC_ENOENT)
513 status = ICE_ERR_DOES_NOT_EXIST;
518 /* ice_init_port_info - Initialize port_info with switch configuration data
519 * @pi: pointer to port_info
520 * @vsi_port_num: VSI number or port number
521 * @type: Type of switch element (port or VSI)
522 * @swid: switch ID of the switch the element is attached to
523 * @pf_vf_num: PF or VF number
524 * @is_vf: true if the element is a VF, false otherwise
527 ice_init_port_info(struct ice_port_info *pi, u16 vsi_port_num, u8 type,
528 u16 swid, u16 pf_vf_num, bool is_vf)
531 case ICE_AQC_GET_SW_CONF_RESP_PHYS_PORT:
532 pi->lport = (u8)(vsi_port_num & ICE_LPORT_MASK);
534 pi->pf_vf_num = pf_vf_num;
536 pi->dflt_tx_vsi_num = ICE_DFLT_VSI_INVAL;
537 pi->dflt_rx_vsi_num = ICE_DFLT_VSI_INVAL;
540 ice_debug(pi->hw, ICE_DBG_SW, "incorrect VSI/port type received\n");
545 /* ice_get_initial_sw_cfg - Get initial port and default VSI data
546 * @hw: pointer to the hardware structure
548 enum ice_status ice_get_initial_sw_cfg(struct ice_hw *hw)
550 struct ice_aqc_get_sw_cfg_resp_elem *rbuf;
551 enum ice_status status;
556 rbuf = devm_kzalloc(ice_hw_to_dev(hw), ICE_SW_CFG_MAX_BUF_LEN,
560 return ICE_ERR_NO_MEMORY;
562 /* Multiple calls to ice_aq_get_sw_cfg may be required
563 * to get all the switch configuration information. The need
564 * for additional calls is indicated by ice_aq_get_sw_cfg
565 * writing a non-zero value in req_desc
568 struct ice_aqc_get_sw_cfg_resp_elem *ele;
570 status = ice_aq_get_sw_cfg(hw, rbuf, ICE_SW_CFG_MAX_BUF_LEN,
571 &req_desc, &num_elems, NULL);
576 for (i = 0, ele = rbuf; i < num_elems; i++, ele++) {
577 u16 pf_vf_num, swid, vsi_port_num;
581 vsi_port_num = le16_to_cpu(ele->vsi_port_num) &
582 ICE_AQC_GET_SW_CONF_RESP_VSI_PORT_NUM_M;
584 pf_vf_num = le16_to_cpu(ele->pf_vf_num) &
585 ICE_AQC_GET_SW_CONF_RESP_FUNC_NUM_M;
587 swid = le16_to_cpu(ele->swid);
589 if (le16_to_cpu(ele->pf_vf_num) &
590 ICE_AQC_GET_SW_CONF_RESP_IS_VF)
593 res_type = (u8)(le16_to_cpu(ele->vsi_port_num) >>
594 ICE_AQC_GET_SW_CONF_RESP_TYPE_S);
596 if (res_type == ICE_AQC_GET_SW_CONF_RESP_VSI) {
597 /* FW VSI is not needed. Just continue. */
601 ice_init_port_info(hw->port_info, vsi_port_num,
602 res_type, swid, pf_vf_num, is_vf);
604 } while (req_desc && !status);
606 devm_kfree(ice_hw_to_dev(hw), rbuf);
611 * ice_fill_sw_info - Helper function to populate lb_en and lan_en
612 * @hw: pointer to the hardware structure
613 * @fi: filter info structure to fill/update
615 * This helper function populates the lb_en and lan_en elements of the provided
616 * ice_fltr_info struct using the switch's type and characteristics of the
617 * switch rule being configured.
619 static void ice_fill_sw_info(struct ice_hw *hw, struct ice_fltr_info *fi)
623 if ((fi->flag & ICE_FLTR_TX) &&
624 (fi->fltr_act == ICE_FWD_TO_VSI ||
625 fi->fltr_act == ICE_FWD_TO_VSI_LIST ||
626 fi->fltr_act == ICE_FWD_TO_Q ||
627 fi->fltr_act == ICE_FWD_TO_QGRP)) {
628 /* Setting LB for prune actions will result in replicated
629 * packets to the internal switch that will be dropped.
631 if (fi->lkup_type != ICE_SW_LKUP_VLAN)
634 /* Set lan_en to TRUE if
635 * 1. The switch is a VEB AND
637 * 2.1 The lookup is a directional lookup like ethertype,
638 * promiscuous, ethertype-MAC, promiscuous-VLAN
639 * and default-port OR
640 * 2.2 The lookup is VLAN, OR
641 * 2.3 The lookup is MAC with mcast or bcast addr for MAC, OR
642 * 2.4 The lookup is MAC_VLAN with mcast or bcast addr for MAC.
646 * The switch is a VEPA.
648 * In all other cases, the LAN enable has to be set to false.
651 if (fi->lkup_type == ICE_SW_LKUP_ETHERTYPE ||
652 fi->lkup_type == ICE_SW_LKUP_PROMISC ||
653 fi->lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC ||
654 fi->lkup_type == ICE_SW_LKUP_PROMISC_VLAN ||
655 fi->lkup_type == ICE_SW_LKUP_DFLT ||
656 fi->lkup_type == ICE_SW_LKUP_VLAN ||
657 (fi->lkup_type == ICE_SW_LKUP_MAC &&
658 !is_unicast_ether_addr(fi->l_data.mac.mac_addr)) ||
659 (fi->lkup_type == ICE_SW_LKUP_MAC_VLAN &&
660 !is_unicast_ether_addr(fi->l_data.mac.mac_addr)))
669 * ice_fill_sw_rule - Helper function to fill switch rule structure
670 * @hw: pointer to the hardware structure
671 * @f_info: entry containing packet forwarding information
672 * @s_rule: switch rule structure to be filled in based on mac_entry
673 * @opc: switch rules population command type - pass in the command opcode
676 ice_fill_sw_rule(struct ice_hw *hw, struct ice_fltr_info *f_info,
677 struct ice_aqc_sw_rules_elem *s_rule, enum ice_adminq_opc opc)
679 u16 vlan_id = ICE_MAX_VLAN_ID + 1;
687 if (opc == ice_aqc_opc_remove_sw_rules) {
688 s_rule->pdata.lkup_tx_rx.act = 0;
689 s_rule->pdata.lkup_tx_rx.index =
690 cpu_to_le16(f_info->fltr_rule_id);
691 s_rule->pdata.lkup_tx_rx.hdr_len = 0;
695 eth_hdr_sz = sizeof(dummy_eth_header);
696 eth_hdr = s_rule->pdata.lkup_tx_rx.hdr;
698 /* initialize the ether header with a dummy header */
699 memcpy(eth_hdr, dummy_eth_header, eth_hdr_sz);
700 ice_fill_sw_info(hw, f_info);
702 switch (f_info->fltr_act) {
704 act |= (f_info->fwd_id.hw_vsi_id << ICE_SINGLE_ACT_VSI_ID_S) &
705 ICE_SINGLE_ACT_VSI_ID_M;
706 if (f_info->lkup_type != ICE_SW_LKUP_VLAN)
707 act |= ICE_SINGLE_ACT_VSI_FORWARDING |
708 ICE_SINGLE_ACT_VALID_BIT;
710 case ICE_FWD_TO_VSI_LIST:
711 act |= ICE_SINGLE_ACT_VSI_LIST;
712 act |= (f_info->fwd_id.vsi_list_id <<
713 ICE_SINGLE_ACT_VSI_LIST_ID_S) &
714 ICE_SINGLE_ACT_VSI_LIST_ID_M;
715 if (f_info->lkup_type != ICE_SW_LKUP_VLAN)
716 act |= ICE_SINGLE_ACT_VSI_FORWARDING |
717 ICE_SINGLE_ACT_VALID_BIT;
720 act |= ICE_SINGLE_ACT_TO_Q;
721 act |= (f_info->fwd_id.q_id << ICE_SINGLE_ACT_Q_INDEX_S) &
722 ICE_SINGLE_ACT_Q_INDEX_M;
724 case ICE_DROP_PACKET:
725 act |= ICE_SINGLE_ACT_VSI_FORWARDING | ICE_SINGLE_ACT_DROP |
726 ICE_SINGLE_ACT_VALID_BIT;
728 case ICE_FWD_TO_QGRP:
729 q_rgn = f_info->qgrp_size > 0 ?
730 (u8)ilog2(f_info->qgrp_size) : 0;
731 act |= ICE_SINGLE_ACT_TO_Q;
732 act |= (f_info->fwd_id.q_id << ICE_SINGLE_ACT_Q_INDEX_S) &
733 ICE_SINGLE_ACT_Q_INDEX_M;
734 act |= (q_rgn << ICE_SINGLE_ACT_Q_REGION_S) &
735 ICE_SINGLE_ACT_Q_REGION_M;
742 act |= ICE_SINGLE_ACT_LB_ENABLE;
744 act |= ICE_SINGLE_ACT_LAN_ENABLE;
746 switch (f_info->lkup_type) {
747 case ICE_SW_LKUP_MAC:
748 daddr = f_info->l_data.mac.mac_addr;
750 case ICE_SW_LKUP_VLAN:
751 vlan_id = f_info->l_data.vlan.vlan_id;
752 if (f_info->fltr_act == ICE_FWD_TO_VSI ||
753 f_info->fltr_act == ICE_FWD_TO_VSI_LIST) {
754 act |= ICE_SINGLE_ACT_PRUNE;
755 act |= ICE_SINGLE_ACT_EGRESS | ICE_SINGLE_ACT_INGRESS;
758 case ICE_SW_LKUP_ETHERTYPE_MAC:
759 daddr = f_info->l_data.ethertype_mac.mac_addr;
761 case ICE_SW_LKUP_ETHERTYPE:
762 off = (__force __be16 *)(eth_hdr + ICE_ETH_ETHTYPE_OFFSET);
763 *off = cpu_to_be16(f_info->l_data.ethertype_mac.ethertype);
765 case ICE_SW_LKUP_MAC_VLAN:
766 daddr = f_info->l_data.mac_vlan.mac_addr;
767 vlan_id = f_info->l_data.mac_vlan.vlan_id;
769 case ICE_SW_LKUP_PROMISC_VLAN:
770 vlan_id = f_info->l_data.mac_vlan.vlan_id;
772 case ICE_SW_LKUP_PROMISC:
773 daddr = f_info->l_data.mac_vlan.mac_addr;
779 s_rule->type = (f_info->flag & ICE_FLTR_RX) ?
780 cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_RX) :
781 cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_TX);
783 /* Recipe set depending on lookup type */
784 s_rule->pdata.lkup_tx_rx.recipe_id = cpu_to_le16(f_info->lkup_type);
785 s_rule->pdata.lkup_tx_rx.src = cpu_to_le16(f_info->src);
786 s_rule->pdata.lkup_tx_rx.act = cpu_to_le32(act);
789 ether_addr_copy(eth_hdr + ICE_ETH_DA_OFFSET, daddr);
791 if (!(vlan_id > ICE_MAX_VLAN_ID)) {
792 off = (__force __be16 *)(eth_hdr + ICE_ETH_VLAN_TCI_OFFSET);
793 *off = cpu_to_be16(vlan_id);
796 /* Create the switch rule with the final dummy Ethernet header */
797 if (opc != ice_aqc_opc_update_sw_rules)
798 s_rule->pdata.lkup_tx_rx.hdr_len = cpu_to_le16(eth_hdr_sz);
803 * @hw: pointer to the hardware structure
804 * @m_ent: the management entry for which sw marker needs to be added
805 * @sw_marker: sw marker to tag the Rx descriptor with
806 * @l_id: large action resource ID
808 * Create a large action to hold software marker and update the switch rule
809 * entry pointed by m_ent with newly created large action
811 static enum ice_status
812 ice_add_marker_act(struct ice_hw *hw, struct ice_fltr_mgmt_list_entry *m_ent,
813 u16 sw_marker, u16 l_id)
815 struct ice_aqc_sw_rules_elem *lg_act, *rx_tx;
816 /* For software marker we need 3 large actions
817 * 1. FWD action: FWD TO VSI or VSI LIST
818 * 2. GENERIC VALUE action to hold the profile ID
819 * 3. GENERIC VALUE action to hold the software marker ID
821 const u16 num_lg_acts = 3;
822 enum ice_status status;
828 if (m_ent->fltr_info.lkup_type != ICE_SW_LKUP_MAC)
829 return ICE_ERR_PARAM;
831 /* Create two back-to-back switch rules and submit them to the HW using
836 lg_act_size = (u16)ICE_SW_RULE_LG_ACT_SIZE(num_lg_acts);
837 rules_size = lg_act_size + ICE_SW_RULE_RX_TX_ETH_HDR_SIZE;
838 lg_act = devm_kzalloc(ice_hw_to_dev(hw), rules_size, GFP_KERNEL);
840 return ICE_ERR_NO_MEMORY;
842 rx_tx = (struct ice_aqc_sw_rules_elem *)((u8 *)lg_act + lg_act_size);
844 /* Fill in the first switch rule i.e. large action */
845 lg_act->type = cpu_to_le16(ICE_AQC_SW_RULES_T_LG_ACT);
846 lg_act->pdata.lg_act.index = cpu_to_le16(l_id);
847 lg_act->pdata.lg_act.size = cpu_to_le16(num_lg_acts);
849 /* First action VSI forwarding or VSI list forwarding depending on how
852 id = (m_ent->vsi_count > 1) ? m_ent->fltr_info.fwd_id.vsi_list_id :
853 m_ent->fltr_info.fwd_id.hw_vsi_id;
855 act = ICE_LG_ACT_VSI_FORWARDING | ICE_LG_ACT_VALID_BIT;
856 act |= (id << ICE_LG_ACT_VSI_LIST_ID_S) & ICE_LG_ACT_VSI_LIST_ID_M;
857 if (m_ent->vsi_count > 1)
858 act |= ICE_LG_ACT_VSI_LIST;
859 lg_act->pdata.lg_act.act[0] = cpu_to_le32(act);
861 /* Second action descriptor type */
862 act = ICE_LG_ACT_GENERIC;
864 act |= (1 << ICE_LG_ACT_GENERIC_VALUE_S) & ICE_LG_ACT_GENERIC_VALUE_M;
865 lg_act->pdata.lg_act.act[1] = cpu_to_le32(act);
867 act = (ICE_LG_ACT_GENERIC_OFF_RX_DESC_PROF_IDX <<
868 ICE_LG_ACT_GENERIC_OFFSET_S) & ICE_LG_ACT_GENERIC_OFFSET_M;
870 /* Third action Marker value */
871 act |= ICE_LG_ACT_GENERIC;
872 act |= (sw_marker << ICE_LG_ACT_GENERIC_VALUE_S) &
873 ICE_LG_ACT_GENERIC_VALUE_M;
875 lg_act->pdata.lg_act.act[2] = cpu_to_le32(act);
877 /* call the fill switch rule to fill the lookup Tx Rx structure */
878 ice_fill_sw_rule(hw, &m_ent->fltr_info, rx_tx,
879 ice_aqc_opc_update_sw_rules);
881 /* Update the action to point to the large action ID */
882 rx_tx->pdata.lkup_tx_rx.act =
883 cpu_to_le32(ICE_SINGLE_ACT_PTR |
884 ((l_id << ICE_SINGLE_ACT_PTR_VAL_S) &
885 ICE_SINGLE_ACT_PTR_VAL_M));
887 /* Use the filter rule ID of the previously created rule with single
888 * act. Once the update happens, hardware will treat this as large
891 rx_tx->pdata.lkup_tx_rx.index =
892 cpu_to_le16(m_ent->fltr_info.fltr_rule_id);
894 status = ice_aq_sw_rules(hw, lg_act, rules_size, 2,
895 ice_aqc_opc_update_sw_rules, NULL);
897 m_ent->lg_act_idx = l_id;
898 m_ent->sw_marker_id = sw_marker;
901 devm_kfree(ice_hw_to_dev(hw), lg_act);
906 * ice_create_vsi_list_map
907 * @hw: pointer to the hardware structure
908 * @vsi_handle_arr: array of VSI handles to set in the VSI mapping
909 * @num_vsi: number of VSI handles in the array
910 * @vsi_list_id: VSI list ID generated as part of allocate resource
912 * Helper function to create a new entry of VSI list ID to VSI mapping
913 * using the given VSI list ID
915 static struct ice_vsi_list_map_info *
916 ice_create_vsi_list_map(struct ice_hw *hw, u16 *vsi_handle_arr, u16 num_vsi,
919 struct ice_switch_info *sw = hw->switch_info;
920 struct ice_vsi_list_map_info *v_map;
923 v_map = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*v_map), GFP_KERNEL);
927 v_map->vsi_list_id = vsi_list_id;
929 for (i = 0; i < num_vsi; i++)
930 set_bit(vsi_handle_arr[i], v_map->vsi_map);
932 list_add(&v_map->list_entry, &sw->vsi_list_map_head);
937 * ice_update_vsi_list_rule
938 * @hw: pointer to the hardware structure
939 * @vsi_handle_arr: array of VSI handles to form a VSI list
940 * @num_vsi: number of VSI handles in the array
941 * @vsi_list_id: VSI list ID generated as part of allocate resource
942 * @remove: Boolean value to indicate if this is a remove action
943 * @opc: switch rules population command type - pass in the command opcode
944 * @lkup_type: lookup type of the filter
946 * Call AQ command to add a new switch rule or update existing switch rule
947 * using the given VSI list ID
949 static enum ice_status
950 ice_update_vsi_list_rule(struct ice_hw *hw, u16 *vsi_handle_arr, u16 num_vsi,
951 u16 vsi_list_id, bool remove, enum ice_adminq_opc opc,
952 enum ice_sw_lkup_type lkup_type)
954 struct ice_aqc_sw_rules_elem *s_rule;
955 enum ice_status status;
961 return ICE_ERR_PARAM;
963 if (lkup_type == ICE_SW_LKUP_MAC ||
964 lkup_type == ICE_SW_LKUP_MAC_VLAN ||
965 lkup_type == ICE_SW_LKUP_ETHERTYPE ||
966 lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC ||
967 lkup_type == ICE_SW_LKUP_PROMISC ||
968 lkup_type == ICE_SW_LKUP_PROMISC_VLAN)
969 rule_type = remove ? ICE_AQC_SW_RULES_T_VSI_LIST_CLEAR :
970 ICE_AQC_SW_RULES_T_VSI_LIST_SET;
971 else if (lkup_type == ICE_SW_LKUP_VLAN)
972 rule_type = remove ? ICE_AQC_SW_RULES_T_PRUNE_LIST_CLEAR :
973 ICE_AQC_SW_RULES_T_PRUNE_LIST_SET;
975 return ICE_ERR_PARAM;
977 s_rule_size = (u16)ICE_SW_RULE_VSI_LIST_SIZE(num_vsi);
978 s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL);
980 return ICE_ERR_NO_MEMORY;
981 for (i = 0; i < num_vsi; i++) {
982 if (!ice_is_vsi_valid(hw, vsi_handle_arr[i])) {
983 status = ICE_ERR_PARAM;
986 /* AQ call requires hw_vsi_id(s) */
987 s_rule->pdata.vsi_list.vsi[i] =
988 cpu_to_le16(ice_get_hw_vsi_num(hw, vsi_handle_arr[i]));
991 s_rule->type = cpu_to_le16(rule_type);
992 s_rule->pdata.vsi_list.number_vsi = cpu_to_le16(num_vsi);
993 s_rule->pdata.vsi_list.index = cpu_to_le16(vsi_list_id);
995 status = ice_aq_sw_rules(hw, s_rule, s_rule_size, 1, opc, NULL);
998 devm_kfree(ice_hw_to_dev(hw), s_rule);
1003 * ice_create_vsi_list_rule - Creates and populates a VSI list rule
1004 * @hw: pointer to the HW struct
1005 * @vsi_handle_arr: array of VSI handles to form a VSI list
1006 * @num_vsi: number of VSI handles in the array
1007 * @vsi_list_id: stores the ID of the VSI list to be created
1008 * @lkup_type: switch rule filter's lookup type
1010 static enum ice_status
1011 ice_create_vsi_list_rule(struct ice_hw *hw, u16 *vsi_handle_arr, u16 num_vsi,
1012 u16 *vsi_list_id, enum ice_sw_lkup_type lkup_type)
1014 enum ice_status status;
1016 status = ice_aq_alloc_free_vsi_list(hw, vsi_list_id, lkup_type,
1017 ice_aqc_opc_alloc_res);
1021 /* Update the newly created VSI list to include the specified VSIs */
1022 return ice_update_vsi_list_rule(hw, vsi_handle_arr, num_vsi,
1023 *vsi_list_id, false,
1024 ice_aqc_opc_add_sw_rules, lkup_type);
1028 * ice_create_pkt_fwd_rule
1029 * @hw: pointer to the hardware structure
1030 * @f_entry: entry containing packet forwarding information
1032 * Create switch rule with given filter information and add an entry
1033 * to the corresponding filter management list to track this switch rule
1036 static enum ice_status
1037 ice_create_pkt_fwd_rule(struct ice_hw *hw,
1038 struct ice_fltr_list_entry *f_entry)
1040 struct ice_fltr_mgmt_list_entry *fm_entry;
1041 struct ice_aqc_sw_rules_elem *s_rule;
1042 enum ice_sw_lkup_type l_type;
1043 struct ice_sw_recipe *recp;
1044 enum ice_status status;
1046 s_rule = devm_kzalloc(ice_hw_to_dev(hw),
1047 ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, GFP_KERNEL);
1049 return ICE_ERR_NO_MEMORY;
1050 fm_entry = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*fm_entry),
1053 status = ICE_ERR_NO_MEMORY;
1054 goto ice_create_pkt_fwd_rule_exit;
1057 fm_entry->fltr_info = f_entry->fltr_info;
1059 /* Initialize all the fields for the management entry */
1060 fm_entry->vsi_count = 1;
1061 fm_entry->lg_act_idx = ICE_INVAL_LG_ACT_INDEX;
1062 fm_entry->sw_marker_id = ICE_INVAL_SW_MARKER_ID;
1063 fm_entry->counter_index = ICE_INVAL_COUNTER_ID;
1065 ice_fill_sw_rule(hw, &fm_entry->fltr_info, s_rule,
1066 ice_aqc_opc_add_sw_rules);
1068 status = ice_aq_sw_rules(hw, s_rule, ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, 1,
1069 ice_aqc_opc_add_sw_rules, NULL);
1071 devm_kfree(ice_hw_to_dev(hw), fm_entry);
1072 goto ice_create_pkt_fwd_rule_exit;
1075 f_entry->fltr_info.fltr_rule_id =
1076 le16_to_cpu(s_rule->pdata.lkup_tx_rx.index);
1077 fm_entry->fltr_info.fltr_rule_id =
1078 le16_to_cpu(s_rule->pdata.lkup_tx_rx.index);
1080 /* The book keeping entries will get removed when base driver
1081 * calls remove filter AQ command
1083 l_type = fm_entry->fltr_info.lkup_type;
1084 recp = &hw->switch_info->recp_list[l_type];
1085 list_add(&fm_entry->list_entry, &recp->filt_rules);
1087 ice_create_pkt_fwd_rule_exit:
1088 devm_kfree(ice_hw_to_dev(hw), s_rule);
1093 * ice_update_pkt_fwd_rule
1094 * @hw: pointer to the hardware structure
1095 * @f_info: filter information for switch rule
1097 * Call AQ command to update a previously created switch rule with a
1100 static enum ice_status
1101 ice_update_pkt_fwd_rule(struct ice_hw *hw, struct ice_fltr_info *f_info)
1103 struct ice_aqc_sw_rules_elem *s_rule;
1104 enum ice_status status;
1106 s_rule = devm_kzalloc(ice_hw_to_dev(hw),
1107 ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, GFP_KERNEL);
1109 return ICE_ERR_NO_MEMORY;
1111 ice_fill_sw_rule(hw, f_info, s_rule, ice_aqc_opc_update_sw_rules);
1113 s_rule->pdata.lkup_tx_rx.index = cpu_to_le16(f_info->fltr_rule_id);
1115 /* Update switch rule with new rule set to forward VSI list */
1116 status = ice_aq_sw_rules(hw, s_rule, ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, 1,
1117 ice_aqc_opc_update_sw_rules, NULL);
1119 devm_kfree(ice_hw_to_dev(hw), s_rule);
1124 * ice_update_sw_rule_bridge_mode
1125 * @hw: pointer to the HW struct
1127 * Updates unicast switch filter rules based on VEB/VEPA mode
1129 enum ice_status ice_update_sw_rule_bridge_mode(struct ice_hw *hw)
1131 struct ice_switch_info *sw = hw->switch_info;
1132 struct ice_fltr_mgmt_list_entry *fm_entry;
1133 enum ice_status status = 0;
1134 struct list_head *rule_head;
1135 struct mutex *rule_lock; /* Lock to protect filter rule list */
1137 rule_lock = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock;
1138 rule_head = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rules;
1140 mutex_lock(rule_lock);
1141 list_for_each_entry(fm_entry, rule_head, list_entry) {
1142 struct ice_fltr_info *fi = &fm_entry->fltr_info;
1143 u8 *addr = fi->l_data.mac.mac_addr;
1145 /* Update unicast Tx rules to reflect the selected
1148 if ((fi->flag & ICE_FLTR_TX) && is_unicast_ether_addr(addr) &&
1149 (fi->fltr_act == ICE_FWD_TO_VSI ||
1150 fi->fltr_act == ICE_FWD_TO_VSI_LIST ||
1151 fi->fltr_act == ICE_FWD_TO_Q ||
1152 fi->fltr_act == ICE_FWD_TO_QGRP)) {
1153 status = ice_update_pkt_fwd_rule(hw, fi);
1159 mutex_unlock(rule_lock);
1165 * ice_add_update_vsi_list
1166 * @hw: pointer to the hardware structure
1167 * @m_entry: pointer to current filter management list entry
1168 * @cur_fltr: filter information from the book keeping entry
1169 * @new_fltr: filter information with the new VSI to be added
1171 * Call AQ command to add or update previously created VSI list with new VSI.
1173 * Helper function to do book keeping associated with adding filter information
1174 * The algorithm to do the book keeping is described below :
1175 * When a VSI needs to subscribe to a given filter (MAC/VLAN/Ethtype etc.)
1176 * if only one VSI has been added till now
1177 * Allocate a new VSI list and add two VSIs
1178 * to this list using switch rule command
1179 * Update the previously created switch rule with the
1180 * newly created VSI list ID
1181 * if a VSI list was previously created
1182 * Add the new VSI to the previously created VSI list set
1183 * using the update switch rule command
1185 static enum ice_status
1186 ice_add_update_vsi_list(struct ice_hw *hw,
1187 struct ice_fltr_mgmt_list_entry *m_entry,
1188 struct ice_fltr_info *cur_fltr,
1189 struct ice_fltr_info *new_fltr)
1191 enum ice_status status = 0;
1192 u16 vsi_list_id = 0;
1194 if ((cur_fltr->fltr_act == ICE_FWD_TO_Q ||
1195 cur_fltr->fltr_act == ICE_FWD_TO_QGRP))
1196 return ICE_ERR_NOT_IMPL;
1198 if ((new_fltr->fltr_act == ICE_FWD_TO_Q ||
1199 new_fltr->fltr_act == ICE_FWD_TO_QGRP) &&
1200 (cur_fltr->fltr_act == ICE_FWD_TO_VSI ||
1201 cur_fltr->fltr_act == ICE_FWD_TO_VSI_LIST))
1202 return ICE_ERR_NOT_IMPL;
1204 if (m_entry->vsi_count < 2 && !m_entry->vsi_list_info) {
1205 /* Only one entry existed in the mapping and it was not already
1206 * a part of a VSI list. So, create a VSI list with the old and
1209 struct ice_fltr_info tmp_fltr;
1210 u16 vsi_handle_arr[2];
1212 /* A rule already exists with the new VSI being added */
1213 if (cur_fltr->fwd_id.hw_vsi_id == new_fltr->fwd_id.hw_vsi_id)
1214 return ICE_ERR_ALREADY_EXISTS;
1216 vsi_handle_arr[0] = cur_fltr->vsi_handle;
1217 vsi_handle_arr[1] = new_fltr->vsi_handle;
1218 status = ice_create_vsi_list_rule(hw, &vsi_handle_arr[0], 2,
1220 new_fltr->lkup_type);
1224 tmp_fltr = *new_fltr;
1225 tmp_fltr.fltr_rule_id = cur_fltr->fltr_rule_id;
1226 tmp_fltr.fltr_act = ICE_FWD_TO_VSI_LIST;
1227 tmp_fltr.fwd_id.vsi_list_id = vsi_list_id;
1228 /* Update the previous switch rule of "MAC forward to VSI" to
1229 * "MAC fwd to VSI list"
1231 status = ice_update_pkt_fwd_rule(hw, &tmp_fltr);
1235 cur_fltr->fwd_id.vsi_list_id = vsi_list_id;
1236 cur_fltr->fltr_act = ICE_FWD_TO_VSI_LIST;
1237 m_entry->vsi_list_info =
1238 ice_create_vsi_list_map(hw, &vsi_handle_arr[0], 2,
1241 if (!m_entry->vsi_list_info)
1242 return ICE_ERR_NO_MEMORY;
1244 /* If this entry was large action then the large action needs
1245 * to be updated to point to FWD to VSI list
1247 if (m_entry->sw_marker_id != ICE_INVAL_SW_MARKER_ID)
1249 ice_add_marker_act(hw, m_entry,
1250 m_entry->sw_marker_id,
1251 m_entry->lg_act_idx);
1253 u16 vsi_handle = new_fltr->vsi_handle;
1254 enum ice_adminq_opc opcode;
1256 if (!m_entry->vsi_list_info)
1259 /* A rule already exists with the new VSI being added */
1260 if (test_bit(vsi_handle, m_entry->vsi_list_info->vsi_map))
1263 /* Update the previously created VSI list set with
1264 * the new VSI ID passed in
1266 vsi_list_id = cur_fltr->fwd_id.vsi_list_id;
1267 opcode = ice_aqc_opc_update_sw_rules;
1269 status = ice_update_vsi_list_rule(hw, &vsi_handle, 1,
1270 vsi_list_id, false, opcode,
1271 new_fltr->lkup_type);
1272 /* update VSI list mapping info with new VSI ID */
1274 set_bit(vsi_handle, m_entry->vsi_list_info->vsi_map);
1277 m_entry->vsi_count++;
1282 * ice_find_rule_entry - Search a rule entry
1283 * @hw: pointer to the hardware structure
1284 * @recp_id: lookup type for which the specified rule needs to be searched
1285 * @f_info: rule information
1287 * Helper function to search for a given rule entry
1288 * Returns pointer to entry storing the rule if found
1290 static struct ice_fltr_mgmt_list_entry *
1291 ice_find_rule_entry(struct ice_hw *hw, u8 recp_id, struct ice_fltr_info *f_info)
1293 struct ice_fltr_mgmt_list_entry *list_itr, *ret = NULL;
1294 struct ice_switch_info *sw = hw->switch_info;
1295 struct list_head *list_head;
1297 list_head = &sw->recp_list[recp_id].filt_rules;
1298 list_for_each_entry(list_itr, list_head, list_entry) {
1299 if (!memcmp(&f_info->l_data, &list_itr->fltr_info.l_data,
1300 sizeof(f_info->l_data)) &&
1301 f_info->flag == list_itr->fltr_info.flag) {
1310 * ice_find_vsi_list_entry - Search VSI list map with VSI count 1
1311 * @hw: pointer to the hardware structure
1312 * @recp_id: lookup type for which VSI lists needs to be searched
1313 * @vsi_handle: VSI handle to be found in VSI list
1314 * @vsi_list_id: VSI list ID found containing vsi_handle
1316 * Helper function to search a VSI list with single entry containing given VSI
1317 * handle element. This can be extended further to search VSI list with more
1318 * than 1 vsi_count. Returns pointer to VSI list entry if found.
1320 static struct ice_vsi_list_map_info *
1321 ice_find_vsi_list_entry(struct ice_hw *hw, u8 recp_id, u16 vsi_handle,
1324 struct ice_vsi_list_map_info *map_info = NULL;
1325 struct ice_switch_info *sw = hw->switch_info;
1326 struct ice_fltr_mgmt_list_entry *list_itr;
1327 struct list_head *list_head;
1329 list_head = &sw->recp_list[recp_id].filt_rules;
1330 list_for_each_entry(list_itr, list_head, list_entry) {
1331 if (list_itr->vsi_count == 1 && list_itr->vsi_list_info) {
1332 map_info = list_itr->vsi_list_info;
1333 if (test_bit(vsi_handle, map_info->vsi_map)) {
1334 *vsi_list_id = map_info->vsi_list_id;
1343 * ice_add_rule_internal - add rule for a given lookup type
1344 * @hw: pointer to the hardware structure
1345 * @recp_id: lookup type (recipe ID) for which rule has to be added
1346 * @f_entry: structure containing MAC forwarding information
1348 * Adds or updates the rule lists for a given recipe
1350 static enum ice_status
1351 ice_add_rule_internal(struct ice_hw *hw, u8 recp_id,
1352 struct ice_fltr_list_entry *f_entry)
1354 struct ice_switch_info *sw = hw->switch_info;
1355 struct ice_fltr_info *new_fltr, *cur_fltr;
1356 struct ice_fltr_mgmt_list_entry *m_entry;
1357 struct mutex *rule_lock; /* Lock to protect filter rule list */
1358 enum ice_status status = 0;
1360 if (!ice_is_vsi_valid(hw, f_entry->fltr_info.vsi_handle))
1361 return ICE_ERR_PARAM;
1362 f_entry->fltr_info.fwd_id.hw_vsi_id =
1363 ice_get_hw_vsi_num(hw, f_entry->fltr_info.vsi_handle);
1365 rule_lock = &sw->recp_list[recp_id].filt_rule_lock;
1367 mutex_lock(rule_lock);
1368 new_fltr = &f_entry->fltr_info;
1369 if (new_fltr->flag & ICE_FLTR_RX)
1370 new_fltr->src = hw->port_info->lport;
1371 else if (new_fltr->flag & ICE_FLTR_TX)
1372 new_fltr->src = f_entry->fltr_info.fwd_id.hw_vsi_id;
1374 m_entry = ice_find_rule_entry(hw, recp_id, new_fltr);
1376 mutex_unlock(rule_lock);
1377 return ice_create_pkt_fwd_rule(hw, f_entry);
1380 cur_fltr = &m_entry->fltr_info;
1381 status = ice_add_update_vsi_list(hw, m_entry, cur_fltr, new_fltr);
1382 mutex_unlock(rule_lock);
1388 * ice_remove_vsi_list_rule
1389 * @hw: pointer to the hardware structure
1390 * @vsi_list_id: VSI list ID generated as part of allocate resource
1391 * @lkup_type: switch rule filter lookup type
1393 * The VSI list should be emptied before this function is called to remove the
1396 static enum ice_status
1397 ice_remove_vsi_list_rule(struct ice_hw *hw, u16 vsi_list_id,
1398 enum ice_sw_lkup_type lkup_type)
1400 struct ice_aqc_sw_rules_elem *s_rule;
1401 enum ice_status status;
1404 s_rule_size = (u16)ICE_SW_RULE_VSI_LIST_SIZE(0);
1405 s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL);
1407 return ICE_ERR_NO_MEMORY;
1409 s_rule->type = cpu_to_le16(ICE_AQC_SW_RULES_T_VSI_LIST_CLEAR);
1410 s_rule->pdata.vsi_list.index = cpu_to_le16(vsi_list_id);
1412 /* Free the vsi_list resource that we allocated. It is assumed that the
1413 * list is empty at this point.
1415 status = ice_aq_alloc_free_vsi_list(hw, &vsi_list_id, lkup_type,
1416 ice_aqc_opc_free_res);
1418 devm_kfree(ice_hw_to_dev(hw), s_rule);
1423 * ice_rem_update_vsi_list
1424 * @hw: pointer to the hardware structure
1425 * @vsi_handle: VSI handle of the VSI to remove
1426 * @fm_list: filter management entry for which the VSI list management needs to
1429 static enum ice_status
1430 ice_rem_update_vsi_list(struct ice_hw *hw, u16 vsi_handle,
1431 struct ice_fltr_mgmt_list_entry *fm_list)
1433 enum ice_sw_lkup_type lkup_type;
1434 enum ice_status status = 0;
1437 if (fm_list->fltr_info.fltr_act != ICE_FWD_TO_VSI_LIST ||
1438 fm_list->vsi_count == 0)
1439 return ICE_ERR_PARAM;
1441 /* A rule with the VSI being removed does not exist */
1442 if (!test_bit(vsi_handle, fm_list->vsi_list_info->vsi_map))
1443 return ICE_ERR_DOES_NOT_EXIST;
1445 lkup_type = fm_list->fltr_info.lkup_type;
1446 vsi_list_id = fm_list->fltr_info.fwd_id.vsi_list_id;
1447 status = ice_update_vsi_list_rule(hw, &vsi_handle, 1, vsi_list_id, true,
1448 ice_aqc_opc_update_sw_rules,
1453 fm_list->vsi_count--;
1454 clear_bit(vsi_handle, fm_list->vsi_list_info->vsi_map);
1456 if (fm_list->vsi_count == 1 && lkup_type != ICE_SW_LKUP_VLAN) {
1457 struct ice_fltr_info tmp_fltr_info = fm_list->fltr_info;
1458 struct ice_vsi_list_map_info *vsi_list_info =
1459 fm_list->vsi_list_info;
1462 rem_vsi_handle = find_first_bit(vsi_list_info->vsi_map,
1464 if (!ice_is_vsi_valid(hw, rem_vsi_handle))
1465 return ICE_ERR_OUT_OF_RANGE;
1467 /* Make sure VSI list is empty before removing it below */
1468 status = ice_update_vsi_list_rule(hw, &rem_vsi_handle, 1,
1470 ice_aqc_opc_update_sw_rules,
1475 tmp_fltr_info.fltr_act = ICE_FWD_TO_VSI;
1476 tmp_fltr_info.fwd_id.hw_vsi_id =
1477 ice_get_hw_vsi_num(hw, rem_vsi_handle);
1478 tmp_fltr_info.vsi_handle = rem_vsi_handle;
1479 status = ice_update_pkt_fwd_rule(hw, &tmp_fltr_info);
1481 ice_debug(hw, ICE_DBG_SW, "Failed to update pkt fwd rule to FWD_TO_VSI on HW VSI %d, error %d\n",
1482 tmp_fltr_info.fwd_id.hw_vsi_id, status);
1486 fm_list->fltr_info = tmp_fltr_info;
1489 if ((fm_list->vsi_count == 1 && lkup_type != ICE_SW_LKUP_VLAN) ||
1490 (fm_list->vsi_count == 0 && lkup_type == ICE_SW_LKUP_VLAN)) {
1491 struct ice_vsi_list_map_info *vsi_list_info =
1492 fm_list->vsi_list_info;
1494 /* Remove the VSI list since it is no longer used */
1495 status = ice_remove_vsi_list_rule(hw, vsi_list_id, lkup_type);
1497 ice_debug(hw, ICE_DBG_SW, "Failed to remove VSI list %d, error %d\n",
1498 vsi_list_id, status);
1502 list_del(&vsi_list_info->list_entry);
1503 devm_kfree(ice_hw_to_dev(hw), vsi_list_info);
1504 fm_list->vsi_list_info = NULL;
1511 * ice_remove_rule_internal - Remove a filter rule of a given type
1512 * @hw: pointer to the hardware structure
1513 * @recp_id: recipe ID for which the rule needs to removed
1514 * @f_entry: rule entry containing filter information
1516 static enum ice_status
1517 ice_remove_rule_internal(struct ice_hw *hw, u8 recp_id,
1518 struct ice_fltr_list_entry *f_entry)
1520 struct ice_switch_info *sw = hw->switch_info;
1521 struct ice_fltr_mgmt_list_entry *list_elem;
1522 struct mutex *rule_lock; /* Lock to protect filter rule list */
1523 enum ice_status status = 0;
1524 bool remove_rule = false;
1527 if (!ice_is_vsi_valid(hw, f_entry->fltr_info.vsi_handle))
1528 return ICE_ERR_PARAM;
1529 f_entry->fltr_info.fwd_id.hw_vsi_id =
1530 ice_get_hw_vsi_num(hw, f_entry->fltr_info.vsi_handle);
1532 rule_lock = &sw->recp_list[recp_id].filt_rule_lock;
1533 mutex_lock(rule_lock);
1534 list_elem = ice_find_rule_entry(hw, recp_id, &f_entry->fltr_info);
1536 status = ICE_ERR_DOES_NOT_EXIST;
1540 if (list_elem->fltr_info.fltr_act != ICE_FWD_TO_VSI_LIST) {
1542 } else if (!list_elem->vsi_list_info) {
1543 status = ICE_ERR_DOES_NOT_EXIST;
1545 } else if (list_elem->vsi_list_info->ref_cnt > 1) {
1546 /* a ref_cnt > 1 indicates that the vsi_list is being
1547 * shared by multiple rules. Decrement the ref_cnt and
1548 * remove this rule, but do not modify the list, as it
1549 * is in-use by other rules.
1551 list_elem->vsi_list_info->ref_cnt--;
1554 /* a ref_cnt of 1 indicates the vsi_list is only used
1555 * by one rule. However, the original removal request is only
1556 * for a single VSI. Update the vsi_list first, and only
1557 * remove the rule if there are no further VSIs in this list.
1559 vsi_handle = f_entry->fltr_info.vsi_handle;
1560 status = ice_rem_update_vsi_list(hw, vsi_handle, list_elem);
1563 /* if VSI count goes to zero after updating the VSI list */
1564 if (list_elem->vsi_count == 0)
1569 /* Remove the lookup rule */
1570 struct ice_aqc_sw_rules_elem *s_rule;
1572 s_rule = devm_kzalloc(ice_hw_to_dev(hw),
1573 ICE_SW_RULE_RX_TX_NO_HDR_SIZE,
1576 status = ICE_ERR_NO_MEMORY;
1580 ice_fill_sw_rule(hw, &list_elem->fltr_info, s_rule,
1581 ice_aqc_opc_remove_sw_rules);
1583 status = ice_aq_sw_rules(hw, s_rule,
1584 ICE_SW_RULE_RX_TX_NO_HDR_SIZE, 1,
1585 ice_aqc_opc_remove_sw_rules, NULL);
1587 /* Remove a book keeping from the list */
1588 devm_kfree(ice_hw_to_dev(hw), s_rule);
1593 list_del(&list_elem->list_entry);
1594 devm_kfree(ice_hw_to_dev(hw), list_elem);
1597 mutex_unlock(rule_lock);
1602 * ice_add_mac - Add a MAC address based filter rule
1603 * @hw: pointer to the hardware structure
1604 * @m_list: list of MAC addresses and forwarding information
1606 * IMPORTANT: When the ucast_shared flag is set to false and m_list has
1607 * multiple unicast addresses, the function assumes that all the
1608 * addresses are unique in a given add_mac call. It doesn't
1609 * check for duplicates in this case, removing duplicates from a given
1610 * list should be taken care of in the caller of this function.
1612 enum ice_status ice_add_mac(struct ice_hw *hw, struct list_head *m_list)
1614 struct ice_aqc_sw_rules_elem *s_rule, *r_iter;
1615 struct ice_fltr_list_entry *m_list_itr;
1616 struct list_head *rule_head;
1617 u16 total_elem_left, s_rule_size;
1618 struct ice_switch_info *sw;
1619 struct mutex *rule_lock; /* Lock to protect filter rule list */
1620 enum ice_status status = 0;
1621 u16 num_unicast = 0;
1625 return ICE_ERR_PARAM;
1628 sw = hw->switch_info;
1629 rule_lock = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock;
1630 list_for_each_entry(m_list_itr, m_list, list_entry) {
1631 u8 *add = &m_list_itr->fltr_info.l_data.mac.mac_addr[0];
1635 m_list_itr->fltr_info.flag = ICE_FLTR_TX;
1636 vsi_handle = m_list_itr->fltr_info.vsi_handle;
1637 if (!ice_is_vsi_valid(hw, vsi_handle))
1638 return ICE_ERR_PARAM;
1639 hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle);
1640 m_list_itr->fltr_info.fwd_id.hw_vsi_id = hw_vsi_id;
1641 /* update the src in case it is VSI num */
1642 if (m_list_itr->fltr_info.src_id != ICE_SRC_ID_VSI)
1643 return ICE_ERR_PARAM;
1644 m_list_itr->fltr_info.src = hw_vsi_id;
1645 if (m_list_itr->fltr_info.lkup_type != ICE_SW_LKUP_MAC ||
1646 is_zero_ether_addr(add))
1647 return ICE_ERR_PARAM;
1648 if (is_unicast_ether_addr(add) && !hw->ucast_shared) {
1649 /* Don't overwrite the unicast address */
1650 mutex_lock(rule_lock);
1651 if (ice_find_rule_entry(hw, ICE_SW_LKUP_MAC,
1652 &m_list_itr->fltr_info)) {
1653 mutex_unlock(rule_lock);
1654 return ICE_ERR_ALREADY_EXISTS;
1656 mutex_unlock(rule_lock);
1658 } else if (is_multicast_ether_addr(add) ||
1659 (is_unicast_ether_addr(add) && hw->ucast_shared)) {
1660 m_list_itr->status =
1661 ice_add_rule_internal(hw, ICE_SW_LKUP_MAC,
1663 if (m_list_itr->status)
1664 return m_list_itr->status;
1668 mutex_lock(rule_lock);
1669 /* Exit if no suitable entries were found for adding bulk switch rule */
1672 goto ice_add_mac_exit;
1675 rule_head = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rules;
1677 /* Allocate switch rule buffer for the bulk update for unicast */
1678 s_rule_size = ICE_SW_RULE_RX_TX_ETH_HDR_SIZE;
1679 s_rule = devm_kcalloc(ice_hw_to_dev(hw), num_unicast, s_rule_size,
1682 status = ICE_ERR_NO_MEMORY;
1683 goto ice_add_mac_exit;
1687 list_for_each_entry(m_list_itr, m_list, list_entry) {
1688 struct ice_fltr_info *f_info = &m_list_itr->fltr_info;
1689 u8 *mac_addr = &f_info->l_data.mac.mac_addr[0];
1691 if (is_unicast_ether_addr(mac_addr)) {
1692 ice_fill_sw_rule(hw, &m_list_itr->fltr_info, r_iter,
1693 ice_aqc_opc_add_sw_rules);
1694 r_iter = (struct ice_aqc_sw_rules_elem *)
1695 ((u8 *)r_iter + s_rule_size);
1699 /* Call AQ bulk switch rule update for all unicast addresses */
1701 /* Call AQ switch rule in AQ_MAX chunk */
1702 for (total_elem_left = num_unicast; total_elem_left > 0;
1703 total_elem_left -= elem_sent) {
1704 struct ice_aqc_sw_rules_elem *entry = r_iter;
1706 elem_sent = min_t(u8, total_elem_left,
1707 (ICE_AQ_MAX_BUF_LEN / s_rule_size));
1708 status = ice_aq_sw_rules(hw, entry, elem_sent * s_rule_size,
1709 elem_sent, ice_aqc_opc_add_sw_rules,
1712 goto ice_add_mac_exit;
1713 r_iter = (struct ice_aqc_sw_rules_elem *)
1714 ((u8 *)r_iter + (elem_sent * s_rule_size));
1717 /* Fill up rule ID based on the value returned from FW */
1719 list_for_each_entry(m_list_itr, m_list, list_entry) {
1720 struct ice_fltr_info *f_info = &m_list_itr->fltr_info;
1721 u8 *mac_addr = &f_info->l_data.mac.mac_addr[0];
1722 struct ice_fltr_mgmt_list_entry *fm_entry;
1724 if (is_unicast_ether_addr(mac_addr)) {
1725 f_info->fltr_rule_id =
1726 le16_to_cpu(r_iter->pdata.lkup_tx_rx.index);
1727 f_info->fltr_act = ICE_FWD_TO_VSI;
1728 /* Create an entry to track this MAC address */
1729 fm_entry = devm_kzalloc(ice_hw_to_dev(hw),
1730 sizeof(*fm_entry), GFP_KERNEL);
1732 status = ICE_ERR_NO_MEMORY;
1733 goto ice_add_mac_exit;
1735 fm_entry->fltr_info = *f_info;
1736 fm_entry->vsi_count = 1;
1737 /* The book keeping entries will get removed when
1738 * base driver calls remove filter AQ command
1741 list_add(&fm_entry->list_entry, rule_head);
1742 r_iter = (struct ice_aqc_sw_rules_elem *)
1743 ((u8 *)r_iter + s_rule_size);
1748 mutex_unlock(rule_lock);
1750 devm_kfree(ice_hw_to_dev(hw), s_rule);
1755 * ice_add_vlan_internal - Add one VLAN based filter rule
1756 * @hw: pointer to the hardware structure
1757 * @f_entry: filter entry containing one VLAN information
1759 static enum ice_status
1760 ice_add_vlan_internal(struct ice_hw *hw, struct ice_fltr_list_entry *f_entry)
1762 struct ice_switch_info *sw = hw->switch_info;
1763 struct ice_fltr_mgmt_list_entry *v_list_itr;
1764 struct ice_fltr_info *new_fltr, *cur_fltr;
1765 enum ice_sw_lkup_type lkup_type;
1766 u16 vsi_list_id = 0, vsi_handle;
1767 struct mutex *rule_lock; /* Lock to protect filter rule list */
1768 enum ice_status status = 0;
1770 if (!ice_is_vsi_valid(hw, f_entry->fltr_info.vsi_handle))
1771 return ICE_ERR_PARAM;
1773 f_entry->fltr_info.fwd_id.hw_vsi_id =
1774 ice_get_hw_vsi_num(hw, f_entry->fltr_info.vsi_handle);
1775 new_fltr = &f_entry->fltr_info;
1777 /* VLAN ID should only be 12 bits */
1778 if (new_fltr->l_data.vlan.vlan_id > ICE_MAX_VLAN_ID)
1779 return ICE_ERR_PARAM;
1781 if (new_fltr->src_id != ICE_SRC_ID_VSI)
1782 return ICE_ERR_PARAM;
1784 new_fltr->src = new_fltr->fwd_id.hw_vsi_id;
1785 lkup_type = new_fltr->lkup_type;
1786 vsi_handle = new_fltr->vsi_handle;
1787 rule_lock = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rule_lock;
1788 mutex_lock(rule_lock);
1789 v_list_itr = ice_find_rule_entry(hw, ICE_SW_LKUP_VLAN, new_fltr);
1791 struct ice_vsi_list_map_info *map_info = NULL;
1793 if (new_fltr->fltr_act == ICE_FWD_TO_VSI) {
1794 /* All VLAN pruning rules use a VSI list. Check if
1795 * there is already a VSI list containing VSI that we
1796 * want to add. If found, use the same vsi_list_id for
1797 * this new VLAN rule or else create a new list.
1799 map_info = ice_find_vsi_list_entry(hw, ICE_SW_LKUP_VLAN,
1803 status = ice_create_vsi_list_rule(hw,
1811 /* Convert the action to forwarding to a VSI list. */
1812 new_fltr->fltr_act = ICE_FWD_TO_VSI_LIST;
1813 new_fltr->fwd_id.vsi_list_id = vsi_list_id;
1816 status = ice_create_pkt_fwd_rule(hw, f_entry);
1818 v_list_itr = ice_find_rule_entry(hw, ICE_SW_LKUP_VLAN,
1821 status = ICE_ERR_DOES_NOT_EXIST;
1824 /* reuse VSI list for new rule and increment ref_cnt */
1826 v_list_itr->vsi_list_info = map_info;
1827 map_info->ref_cnt++;
1829 v_list_itr->vsi_list_info =
1830 ice_create_vsi_list_map(hw, &vsi_handle,
1834 } else if (v_list_itr->vsi_list_info->ref_cnt == 1) {
1835 /* Update existing VSI list to add new VSI ID only if it used
1838 cur_fltr = &v_list_itr->fltr_info;
1839 status = ice_add_update_vsi_list(hw, v_list_itr, cur_fltr,
1842 /* If VLAN rule exists and VSI list being used by this rule is
1843 * referenced by more than 1 VLAN rule. Then create a new VSI
1844 * list appending previous VSI with new VSI and update existing
1845 * VLAN rule to point to new VSI list ID
1847 struct ice_fltr_info tmp_fltr;
1848 u16 vsi_handle_arr[2];
1851 /* Current implementation only supports reusing VSI list with
1852 * one VSI count. We should never hit below condition
1854 if (v_list_itr->vsi_count > 1 &&
1855 v_list_itr->vsi_list_info->ref_cnt > 1) {
1856 ice_debug(hw, ICE_DBG_SW, "Invalid configuration: Optimization to reuse VSI list with more than one VSI is not being done yet\n");
1857 status = ICE_ERR_CFG;
1862 find_first_bit(v_list_itr->vsi_list_info->vsi_map,
1865 /* A rule already exists with the new VSI being added */
1866 if (cur_handle == vsi_handle) {
1867 status = ICE_ERR_ALREADY_EXISTS;
1871 vsi_handle_arr[0] = cur_handle;
1872 vsi_handle_arr[1] = vsi_handle;
1873 status = ice_create_vsi_list_rule(hw, &vsi_handle_arr[0], 2,
1874 &vsi_list_id, lkup_type);
1878 tmp_fltr = v_list_itr->fltr_info;
1879 tmp_fltr.fltr_rule_id = v_list_itr->fltr_info.fltr_rule_id;
1880 tmp_fltr.fwd_id.vsi_list_id = vsi_list_id;
1881 tmp_fltr.fltr_act = ICE_FWD_TO_VSI_LIST;
1882 /* Update the previous switch rule to a new VSI list which
1883 * includes current VSI that is requested
1885 status = ice_update_pkt_fwd_rule(hw, &tmp_fltr);
1889 /* before overriding VSI list map info. decrement ref_cnt of
1892 v_list_itr->vsi_list_info->ref_cnt--;
1894 /* now update to newly created list */
1895 v_list_itr->fltr_info.fwd_id.vsi_list_id = vsi_list_id;
1896 v_list_itr->vsi_list_info =
1897 ice_create_vsi_list_map(hw, &vsi_handle_arr[0], 2,
1899 v_list_itr->vsi_count++;
1903 mutex_unlock(rule_lock);
1908 * ice_add_vlan - Add VLAN based filter rule
1909 * @hw: pointer to the hardware structure
1910 * @v_list: list of VLAN entries and forwarding information
1912 enum ice_status ice_add_vlan(struct ice_hw *hw, struct list_head *v_list)
1914 struct ice_fltr_list_entry *v_list_itr;
1917 return ICE_ERR_PARAM;
1919 list_for_each_entry(v_list_itr, v_list, list_entry) {
1920 if (v_list_itr->fltr_info.lkup_type != ICE_SW_LKUP_VLAN)
1921 return ICE_ERR_PARAM;
1922 v_list_itr->fltr_info.flag = ICE_FLTR_TX;
1923 v_list_itr->status = ice_add_vlan_internal(hw, v_list_itr);
1924 if (v_list_itr->status)
1925 return v_list_itr->status;
1931 * ice_add_eth_mac - Add ethertype and MAC based filter rule
1932 * @hw: pointer to the hardware structure
1933 * @em_list: list of ether type MAC filter, MAC is optional
1935 * This function requires the caller to populate the entries in
1936 * the filter list with the necessary fields (including flags to
1937 * indicate Tx or Rx rules).
1940 ice_add_eth_mac(struct ice_hw *hw, struct list_head *em_list)
1942 struct ice_fltr_list_entry *em_list_itr;
1944 if (!em_list || !hw)
1945 return ICE_ERR_PARAM;
1947 list_for_each_entry(em_list_itr, em_list, list_entry) {
1948 enum ice_sw_lkup_type l_type =
1949 em_list_itr->fltr_info.lkup_type;
1951 if (l_type != ICE_SW_LKUP_ETHERTYPE_MAC &&
1952 l_type != ICE_SW_LKUP_ETHERTYPE)
1953 return ICE_ERR_PARAM;
1955 em_list_itr->status = ice_add_rule_internal(hw, l_type,
1957 if (em_list_itr->status)
1958 return em_list_itr->status;
1964 * ice_remove_eth_mac - Remove an ethertype (or MAC) based filter rule
1965 * @hw: pointer to the hardware structure
1966 * @em_list: list of ethertype or ethertype MAC entries
1969 ice_remove_eth_mac(struct ice_hw *hw, struct list_head *em_list)
1971 struct ice_fltr_list_entry *em_list_itr, *tmp;
1973 if (!em_list || !hw)
1974 return ICE_ERR_PARAM;
1976 list_for_each_entry_safe(em_list_itr, tmp, em_list, list_entry) {
1977 enum ice_sw_lkup_type l_type =
1978 em_list_itr->fltr_info.lkup_type;
1980 if (l_type != ICE_SW_LKUP_ETHERTYPE_MAC &&
1981 l_type != ICE_SW_LKUP_ETHERTYPE)
1982 return ICE_ERR_PARAM;
1984 em_list_itr->status = ice_remove_rule_internal(hw, l_type,
1986 if (em_list_itr->status)
1987 return em_list_itr->status;
1993 * ice_rem_sw_rule_info
1994 * @hw: pointer to the hardware structure
1995 * @rule_head: pointer to the switch list structure that we want to delete
1998 ice_rem_sw_rule_info(struct ice_hw *hw, struct list_head *rule_head)
2000 if (!list_empty(rule_head)) {
2001 struct ice_fltr_mgmt_list_entry *entry;
2002 struct ice_fltr_mgmt_list_entry *tmp;
2004 list_for_each_entry_safe(entry, tmp, rule_head, list_entry) {
2005 list_del(&entry->list_entry);
2006 devm_kfree(ice_hw_to_dev(hw), entry);
2012 * ice_cfg_dflt_vsi - change state of VSI to set/clear default
2013 * @hw: pointer to the hardware structure
2014 * @vsi_handle: VSI handle to set as default
2015 * @set: true to add the above mentioned switch rule, false to remove it
2016 * @direction: ICE_FLTR_RX or ICE_FLTR_TX
2018 * add filter rule to set/unset given VSI as default VSI for the switch
2019 * (represented by swid)
2022 ice_cfg_dflt_vsi(struct ice_hw *hw, u16 vsi_handle, bool set, u8 direction)
2024 struct ice_aqc_sw_rules_elem *s_rule;
2025 struct ice_fltr_info f_info;
2026 enum ice_adminq_opc opcode;
2027 enum ice_status status;
2031 if (!ice_is_vsi_valid(hw, vsi_handle))
2032 return ICE_ERR_PARAM;
2033 hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle);
2035 s_rule_size = set ? ICE_SW_RULE_RX_TX_ETH_HDR_SIZE :
2036 ICE_SW_RULE_RX_TX_NO_HDR_SIZE;
2038 s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL);
2040 return ICE_ERR_NO_MEMORY;
2042 memset(&f_info, 0, sizeof(f_info));
2044 f_info.lkup_type = ICE_SW_LKUP_DFLT;
2045 f_info.flag = direction;
2046 f_info.fltr_act = ICE_FWD_TO_VSI;
2047 f_info.fwd_id.hw_vsi_id = hw_vsi_id;
2049 if (f_info.flag & ICE_FLTR_RX) {
2050 f_info.src = hw->port_info->lport;
2051 f_info.src_id = ICE_SRC_ID_LPORT;
2053 f_info.fltr_rule_id =
2054 hw->port_info->dflt_rx_vsi_rule_id;
2055 } else if (f_info.flag & ICE_FLTR_TX) {
2056 f_info.src_id = ICE_SRC_ID_VSI;
2057 f_info.src = hw_vsi_id;
2059 f_info.fltr_rule_id =
2060 hw->port_info->dflt_tx_vsi_rule_id;
2064 opcode = ice_aqc_opc_add_sw_rules;
2066 opcode = ice_aqc_opc_remove_sw_rules;
2068 ice_fill_sw_rule(hw, &f_info, s_rule, opcode);
2070 status = ice_aq_sw_rules(hw, s_rule, s_rule_size, 1, opcode, NULL);
2071 if (status || !(f_info.flag & ICE_FLTR_TX_RX))
2074 u16 index = le16_to_cpu(s_rule->pdata.lkup_tx_rx.index);
2076 if (f_info.flag & ICE_FLTR_TX) {
2077 hw->port_info->dflt_tx_vsi_num = hw_vsi_id;
2078 hw->port_info->dflt_tx_vsi_rule_id = index;
2079 } else if (f_info.flag & ICE_FLTR_RX) {
2080 hw->port_info->dflt_rx_vsi_num = hw_vsi_id;
2081 hw->port_info->dflt_rx_vsi_rule_id = index;
2084 if (f_info.flag & ICE_FLTR_TX) {
2085 hw->port_info->dflt_tx_vsi_num = ICE_DFLT_VSI_INVAL;
2086 hw->port_info->dflt_tx_vsi_rule_id = ICE_INVAL_ACT;
2087 } else if (f_info.flag & ICE_FLTR_RX) {
2088 hw->port_info->dflt_rx_vsi_num = ICE_DFLT_VSI_INVAL;
2089 hw->port_info->dflt_rx_vsi_rule_id = ICE_INVAL_ACT;
2094 devm_kfree(ice_hw_to_dev(hw), s_rule);
2099 * ice_find_ucast_rule_entry - Search for a unicast MAC filter rule entry
2100 * @hw: pointer to the hardware structure
2101 * @recp_id: lookup type for which the specified rule needs to be searched
2102 * @f_info: rule information
2104 * Helper function to search for a unicast rule entry - this is to be used
2105 * to remove unicast MAC filter that is not shared with other VSIs on the
2108 * Returns pointer to entry storing the rule if found
2110 static struct ice_fltr_mgmt_list_entry *
2111 ice_find_ucast_rule_entry(struct ice_hw *hw, u8 recp_id,
2112 struct ice_fltr_info *f_info)
2114 struct ice_switch_info *sw = hw->switch_info;
2115 struct ice_fltr_mgmt_list_entry *list_itr;
2116 struct list_head *list_head;
2118 list_head = &sw->recp_list[recp_id].filt_rules;
2119 list_for_each_entry(list_itr, list_head, list_entry) {
2120 if (!memcmp(&f_info->l_data, &list_itr->fltr_info.l_data,
2121 sizeof(f_info->l_data)) &&
2122 f_info->fwd_id.hw_vsi_id ==
2123 list_itr->fltr_info.fwd_id.hw_vsi_id &&
2124 f_info->flag == list_itr->fltr_info.flag)
2131 * ice_remove_mac - remove a MAC address based filter rule
2132 * @hw: pointer to the hardware structure
2133 * @m_list: list of MAC addresses and forwarding information
2135 * This function removes either a MAC filter rule or a specific VSI from a
2136 * VSI list for a multicast MAC address.
2138 * Returns ICE_ERR_DOES_NOT_EXIST if a given entry was not added by
2139 * ice_add_mac. Caller should be aware that this call will only work if all
2140 * the entries passed into m_list were added previously. It will not attempt to
2141 * do a partial remove of entries that were found.
2143 enum ice_status ice_remove_mac(struct ice_hw *hw, struct list_head *m_list)
2145 struct ice_fltr_list_entry *list_itr, *tmp;
2146 struct mutex *rule_lock; /* Lock to protect filter rule list */
2149 return ICE_ERR_PARAM;
2151 rule_lock = &hw->switch_info->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock;
2152 list_for_each_entry_safe(list_itr, tmp, m_list, list_entry) {
2153 enum ice_sw_lkup_type l_type = list_itr->fltr_info.lkup_type;
2154 u8 *add = &list_itr->fltr_info.l_data.mac.mac_addr[0];
2157 if (l_type != ICE_SW_LKUP_MAC)
2158 return ICE_ERR_PARAM;
2160 vsi_handle = list_itr->fltr_info.vsi_handle;
2161 if (!ice_is_vsi_valid(hw, vsi_handle))
2162 return ICE_ERR_PARAM;
2164 list_itr->fltr_info.fwd_id.hw_vsi_id =
2165 ice_get_hw_vsi_num(hw, vsi_handle);
2166 if (is_unicast_ether_addr(add) && !hw->ucast_shared) {
2167 /* Don't remove the unicast address that belongs to
2168 * another VSI on the switch, since it is not being
2171 mutex_lock(rule_lock);
2172 if (!ice_find_ucast_rule_entry(hw, ICE_SW_LKUP_MAC,
2173 &list_itr->fltr_info)) {
2174 mutex_unlock(rule_lock);
2175 return ICE_ERR_DOES_NOT_EXIST;
2177 mutex_unlock(rule_lock);
2179 list_itr->status = ice_remove_rule_internal(hw,
2182 if (list_itr->status)
2183 return list_itr->status;
2189 * ice_remove_vlan - Remove VLAN based filter rule
2190 * @hw: pointer to the hardware structure
2191 * @v_list: list of VLAN entries and forwarding information
2194 ice_remove_vlan(struct ice_hw *hw, struct list_head *v_list)
2196 struct ice_fltr_list_entry *v_list_itr, *tmp;
2199 return ICE_ERR_PARAM;
2201 list_for_each_entry_safe(v_list_itr, tmp, v_list, list_entry) {
2202 enum ice_sw_lkup_type l_type = v_list_itr->fltr_info.lkup_type;
2204 if (l_type != ICE_SW_LKUP_VLAN)
2205 return ICE_ERR_PARAM;
2206 v_list_itr->status = ice_remove_rule_internal(hw,
2209 if (v_list_itr->status)
2210 return v_list_itr->status;
2216 * ice_vsi_uses_fltr - Determine if given VSI uses specified filter
2217 * @fm_entry: filter entry to inspect
2218 * @vsi_handle: VSI handle to compare with filter info
2221 ice_vsi_uses_fltr(struct ice_fltr_mgmt_list_entry *fm_entry, u16 vsi_handle)
2223 return ((fm_entry->fltr_info.fltr_act == ICE_FWD_TO_VSI &&
2224 fm_entry->fltr_info.vsi_handle == vsi_handle) ||
2225 (fm_entry->fltr_info.fltr_act == ICE_FWD_TO_VSI_LIST &&
2226 fm_entry->vsi_list_info &&
2227 (test_bit(vsi_handle, fm_entry->vsi_list_info->vsi_map))));
2231 * ice_add_entry_to_vsi_fltr_list - Add copy of fltr_list_entry to remove list
2232 * @hw: pointer to the hardware structure
2233 * @vsi_handle: VSI handle to remove filters from
2234 * @vsi_list_head: pointer to the list to add entry to
2235 * @fi: pointer to fltr_info of filter entry to copy & add
2237 * Helper function, used when creating a list of filters to remove from
2238 * a specific VSI. The entry added to vsi_list_head is a COPY of the
2239 * original filter entry, with the exception of fltr_info.fltr_act and
2240 * fltr_info.fwd_id fields. These are set such that later logic can
2241 * extract which VSI to remove the fltr from, and pass on that information.
2243 static enum ice_status
2244 ice_add_entry_to_vsi_fltr_list(struct ice_hw *hw, u16 vsi_handle,
2245 struct list_head *vsi_list_head,
2246 struct ice_fltr_info *fi)
2248 struct ice_fltr_list_entry *tmp;
2250 /* this memory is freed up in the caller function
2251 * once filters for this VSI are removed
2253 tmp = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*tmp), GFP_KERNEL);
2255 return ICE_ERR_NO_MEMORY;
2257 tmp->fltr_info = *fi;
2259 /* Overwrite these fields to indicate which VSI to remove filter from,
2260 * so find and remove logic can extract the information from the
2261 * list entries. Note that original entries will still have proper
2264 tmp->fltr_info.fltr_act = ICE_FWD_TO_VSI;
2265 tmp->fltr_info.vsi_handle = vsi_handle;
2266 tmp->fltr_info.fwd_id.hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle);
2268 list_add(&tmp->list_entry, vsi_list_head);
2274 * ice_add_to_vsi_fltr_list - Add VSI filters to the list
2275 * @hw: pointer to the hardware structure
2276 * @vsi_handle: VSI handle to remove filters from
2277 * @lkup_list_head: pointer to the list that has certain lookup type filters
2278 * @vsi_list_head: pointer to the list pertaining to VSI with vsi_handle
2280 * Locates all filters in lkup_list_head that are used by the given VSI,
2281 * and adds COPIES of those entries to vsi_list_head (intended to be used
2282 * to remove the listed filters).
2283 * Note that this means all entries in vsi_list_head must be explicitly
2284 * deallocated by the caller when done with list.
2286 static enum ice_status
2287 ice_add_to_vsi_fltr_list(struct ice_hw *hw, u16 vsi_handle,
2288 struct list_head *lkup_list_head,
2289 struct list_head *vsi_list_head)
2291 struct ice_fltr_mgmt_list_entry *fm_entry;
2292 enum ice_status status = 0;
2294 /* check to make sure VSI ID is valid and within boundary */
2295 if (!ice_is_vsi_valid(hw, vsi_handle))
2296 return ICE_ERR_PARAM;
2298 list_for_each_entry(fm_entry, lkup_list_head, list_entry) {
2299 if (!ice_vsi_uses_fltr(fm_entry, vsi_handle))
2302 status = ice_add_entry_to_vsi_fltr_list(hw, vsi_handle,
2304 &fm_entry->fltr_info);
2312 * ice_determine_promisc_mask
2313 * @fi: filter info to parse
2315 * Helper function to determine which ICE_PROMISC_ mask corresponds
2316 * to given filter into.
2318 static u8 ice_determine_promisc_mask(struct ice_fltr_info *fi)
2320 u16 vid = fi->l_data.mac_vlan.vlan_id;
2321 u8 *macaddr = fi->l_data.mac.mac_addr;
2322 bool is_tx_fltr = false;
2323 u8 promisc_mask = 0;
2325 if (fi->flag == ICE_FLTR_TX)
2328 if (is_broadcast_ether_addr(macaddr))
2329 promisc_mask |= is_tx_fltr ?
2330 ICE_PROMISC_BCAST_TX : ICE_PROMISC_BCAST_RX;
2331 else if (is_multicast_ether_addr(macaddr))
2332 promisc_mask |= is_tx_fltr ?
2333 ICE_PROMISC_MCAST_TX : ICE_PROMISC_MCAST_RX;
2334 else if (is_unicast_ether_addr(macaddr))
2335 promisc_mask |= is_tx_fltr ?
2336 ICE_PROMISC_UCAST_TX : ICE_PROMISC_UCAST_RX;
2338 promisc_mask |= is_tx_fltr ?
2339 ICE_PROMISC_VLAN_TX : ICE_PROMISC_VLAN_RX;
2341 return promisc_mask;
2345 * ice_remove_promisc - Remove promisc based filter rules
2346 * @hw: pointer to the hardware structure
2347 * @recp_id: recipe ID for which the rule needs to removed
2348 * @v_list: list of promisc entries
2350 static enum ice_status
2351 ice_remove_promisc(struct ice_hw *hw, u8 recp_id,
2352 struct list_head *v_list)
2354 struct ice_fltr_list_entry *v_list_itr, *tmp;
2356 list_for_each_entry_safe(v_list_itr, tmp, v_list, list_entry) {
2357 v_list_itr->status =
2358 ice_remove_rule_internal(hw, recp_id, v_list_itr);
2359 if (v_list_itr->status)
2360 return v_list_itr->status;
2366 * ice_clear_vsi_promisc - clear specified promiscuous mode(s) for given VSI
2367 * @hw: pointer to the hardware structure
2368 * @vsi_handle: VSI handle to clear mode
2369 * @promisc_mask: mask of promiscuous config bits to clear
2370 * @vid: VLAN ID to clear VLAN promiscuous
2373 ice_clear_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask,
2376 struct ice_switch_info *sw = hw->switch_info;
2377 struct ice_fltr_list_entry *fm_entry, *tmp;
2378 struct list_head remove_list_head;
2379 struct ice_fltr_mgmt_list_entry *itr;
2380 struct list_head *rule_head;
2381 struct mutex *rule_lock; /* Lock to protect filter rule list */
2382 enum ice_status status = 0;
2385 if (!ice_is_vsi_valid(hw, vsi_handle))
2386 return ICE_ERR_PARAM;
2388 if (promisc_mask & (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX))
2389 recipe_id = ICE_SW_LKUP_PROMISC_VLAN;
2391 recipe_id = ICE_SW_LKUP_PROMISC;
2393 rule_head = &sw->recp_list[recipe_id].filt_rules;
2394 rule_lock = &sw->recp_list[recipe_id].filt_rule_lock;
2396 INIT_LIST_HEAD(&remove_list_head);
2398 mutex_lock(rule_lock);
2399 list_for_each_entry(itr, rule_head, list_entry) {
2400 struct ice_fltr_info *fltr_info;
2401 u8 fltr_promisc_mask = 0;
2403 if (!ice_vsi_uses_fltr(itr, vsi_handle))
2405 fltr_info = &itr->fltr_info;
2407 if (recipe_id == ICE_SW_LKUP_PROMISC_VLAN &&
2408 vid != fltr_info->l_data.mac_vlan.vlan_id)
2411 fltr_promisc_mask |= ice_determine_promisc_mask(fltr_info);
2413 /* Skip if filter is not completely specified by given mask */
2414 if (fltr_promisc_mask & ~promisc_mask)
2417 status = ice_add_entry_to_vsi_fltr_list(hw, vsi_handle,
2421 mutex_unlock(rule_lock);
2422 goto free_fltr_list;
2425 mutex_unlock(rule_lock);
2427 status = ice_remove_promisc(hw, recipe_id, &remove_list_head);
2430 list_for_each_entry_safe(fm_entry, tmp, &remove_list_head, list_entry) {
2431 list_del(&fm_entry->list_entry);
2432 devm_kfree(ice_hw_to_dev(hw), fm_entry);
2439 * ice_set_vsi_promisc - set given VSI to given promiscuous mode(s)
2440 * @hw: pointer to the hardware structure
2441 * @vsi_handle: VSI handle to configure
2442 * @promisc_mask: mask of promiscuous config bits
2443 * @vid: VLAN ID to set VLAN promiscuous
2446 ice_set_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask, u16 vid)
2448 enum { UCAST_FLTR = 1, MCAST_FLTR, BCAST_FLTR };
2449 struct ice_fltr_list_entry f_list_entry;
2450 struct ice_fltr_info new_fltr;
2451 enum ice_status status = 0;
2457 if (!ice_is_vsi_valid(hw, vsi_handle))
2458 return ICE_ERR_PARAM;
2459 hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle);
2461 memset(&new_fltr, 0, sizeof(new_fltr));
2463 if (promisc_mask & (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX)) {
2464 new_fltr.lkup_type = ICE_SW_LKUP_PROMISC_VLAN;
2465 new_fltr.l_data.mac_vlan.vlan_id = vid;
2466 recipe_id = ICE_SW_LKUP_PROMISC_VLAN;
2468 new_fltr.lkup_type = ICE_SW_LKUP_PROMISC;
2469 recipe_id = ICE_SW_LKUP_PROMISC;
2472 /* Separate filters must be set for each direction/packet type
2473 * combination, so we will loop over the mask value, store the
2474 * individual type, and clear it out in the input mask as it
2477 while (promisc_mask) {
2483 if (promisc_mask & ICE_PROMISC_UCAST_RX) {
2484 promisc_mask &= ~ICE_PROMISC_UCAST_RX;
2485 pkt_type = UCAST_FLTR;
2486 } else if (promisc_mask & ICE_PROMISC_UCAST_TX) {
2487 promisc_mask &= ~ICE_PROMISC_UCAST_TX;
2488 pkt_type = UCAST_FLTR;
2490 } else if (promisc_mask & ICE_PROMISC_MCAST_RX) {
2491 promisc_mask &= ~ICE_PROMISC_MCAST_RX;
2492 pkt_type = MCAST_FLTR;
2493 } else if (promisc_mask & ICE_PROMISC_MCAST_TX) {
2494 promisc_mask &= ~ICE_PROMISC_MCAST_TX;
2495 pkt_type = MCAST_FLTR;
2497 } else if (promisc_mask & ICE_PROMISC_BCAST_RX) {
2498 promisc_mask &= ~ICE_PROMISC_BCAST_RX;
2499 pkt_type = BCAST_FLTR;
2500 } else if (promisc_mask & ICE_PROMISC_BCAST_TX) {
2501 promisc_mask &= ~ICE_PROMISC_BCAST_TX;
2502 pkt_type = BCAST_FLTR;
2506 /* Check for VLAN promiscuous flag */
2507 if (promisc_mask & ICE_PROMISC_VLAN_RX) {
2508 promisc_mask &= ~ICE_PROMISC_VLAN_RX;
2509 } else if (promisc_mask & ICE_PROMISC_VLAN_TX) {
2510 promisc_mask &= ~ICE_PROMISC_VLAN_TX;
2514 /* Set filter DA based on packet type */
2515 mac_addr = new_fltr.l_data.mac.mac_addr;
2516 if (pkt_type == BCAST_FLTR) {
2517 eth_broadcast_addr(mac_addr);
2518 } else if (pkt_type == MCAST_FLTR ||
2519 pkt_type == UCAST_FLTR) {
2520 /* Use the dummy ether header DA */
2521 ether_addr_copy(mac_addr, dummy_eth_header);
2522 if (pkt_type == MCAST_FLTR)
2523 mac_addr[0] |= 0x1; /* Set multicast bit */
2526 /* Need to reset this to zero for all iterations */
2529 new_fltr.flag |= ICE_FLTR_TX;
2530 new_fltr.src = hw_vsi_id;
2532 new_fltr.flag |= ICE_FLTR_RX;
2533 new_fltr.src = hw->port_info->lport;
2536 new_fltr.fltr_act = ICE_FWD_TO_VSI;
2537 new_fltr.vsi_handle = vsi_handle;
2538 new_fltr.fwd_id.hw_vsi_id = hw_vsi_id;
2539 f_list_entry.fltr_info = new_fltr;
2541 status = ice_add_rule_internal(hw, recipe_id, &f_list_entry);
2543 goto set_promisc_exit;
2551 * ice_set_vlan_vsi_promisc
2552 * @hw: pointer to the hardware structure
2553 * @vsi_handle: VSI handle to configure
2554 * @promisc_mask: mask of promiscuous config bits
2555 * @rm_vlan_promisc: Clear VLANs VSI promisc mode
2557 * Configure VSI with all associated VLANs to given promiscuous mode(s)
2560 ice_set_vlan_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask,
2561 bool rm_vlan_promisc)
2563 struct ice_switch_info *sw = hw->switch_info;
2564 struct ice_fltr_list_entry *list_itr, *tmp;
2565 struct list_head vsi_list_head;
2566 struct list_head *vlan_head;
2567 struct mutex *vlan_lock; /* Lock to protect filter rule list */
2568 enum ice_status status;
2571 INIT_LIST_HEAD(&vsi_list_head);
2572 vlan_lock = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rule_lock;
2573 vlan_head = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rules;
2574 mutex_lock(vlan_lock);
2575 status = ice_add_to_vsi_fltr_list(hw, vsi_handle, vlan_head,
2577 mutex_unlock(vlan_lock);
2579 goto free_fltr_list;
2581 list_for_each_entry(list_itr, &vsi_list_head, list_entry) {
2582 vlan_id = list_itr->fltr_info.l_data.vlan.vlan_id;
2583 if (rm_vlan_promisc)
2584 status = ice_clear_vsi_promisc(hw, vsi_handle,
2585 promisc_mask, vlan_id);
2587 status = ice_set_vsi_promisc(hw, vsi_handle,
2588 promisc_mask, vlan_id);
2594 list_for_each_entry_safe(list_itr, tmp, &vsi_list_head, list_entry) {
2595 list_del(&list_itr->list_entry);
2596 devm_kfree(ice_hw_to_dev(hw), list_itr);
2602 * ice_remove_vsi_lkup_fltr - Remove lookup type filters for a VSI
2603 * @hw: pointer to the hardware structure
2604 * @vsi_handle: VSI handle to remove filters from
2605 * @lkup: switch rule filter lookup type
2608 ice_remove_vsi_lkup_fltr(struct ice_hw *hw, u16 vsi_handle,
2609 enum ice_sw_lkup_type lkup)
2611 struct ice_switch_info *sw = hw->switch_info;
2612 struct ice_fltr_list_entry *fm_entry;
2613 struct list_head remove_list_head;
2614 struct list_head *rule_head;
2615 struct ice_fltr_list_entry *tmp;
2616 struct mutex *rule_lock; /* Lock to protect filter rule list */
2617 enum ice_status status;
2619 INIT_LIST_HEAD(&remove_list_head);
2620 rule_lock = &sw->recp_list[lkup].filt_rule_lock;
2621 rule_head = &sw->recp_list[lkup].filt_rules;
2622 mutex_lock(rule_lock);
2623 status = ice_add_to_vsi_fltr_list(hw, vsi_handle, rule_head,
2625 mutex_unlock(rule_lock);
2627 goto free_fltr_list;
2630 case ICE_SW_LKUP_MAC:
2631 ice_remove_mac(hw, &remove_list_head);
2633 case ICE_SW_LKUP_VLAN:
2634 ice_remove_vlan(hw, &remove_list_head);
2636 case ICE_SW_LKUP_PROMISC:
2637 case ICE_SW_LKUP_PROMISC_VLAN:
2638 ice_remove_promisc(hw, lkup, &remove_list_head);
2640 case ICE_SW_LKUP_MAC_VLAN:
2641 case ICE_SW_LKUP_ETHERTYPE:
2642 case ICE_SW_LKUP_ETHERTYPE_MAC:
2643 case ICE_SW_LKUP_DFLT:
2644 case ICE_SW_LKUP_LAST:
2646 ice_debug(hw, ICE_DBG_SW, "Unsupported lookup type %d\n", lkup);
2651 list_for_each_entry_safe(fm_entry, tmp, &remove_list_head, list_entry) {
2652 list_del(&fm_entry->list_entry);
2653 devm_kfree(ice_hw_to_dev(hw), fm_entry);
2658 * ice_remove_vsi_fltr - Remove all filters for a VSI
2659 * @hw: pointer to the hardware structure
2660 * @vsi_handle: VSI handle to remove filters from
2662 void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_handle)
2664 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_MAC);
2665 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_MAC_VLAN);
2666 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_PROMISC);
2667 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_VLAN);
2668 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_DFLT);
2669 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_ETHERTYPE);
2670 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_ETHERTYPE_MAC);
2671 ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_PROMISC_VLAN);
2675 * ice_alloc_res_cntr - allocating resource counter
2676 * @hw: pointer to the hardware structure
2677 * @type: type of resource
2678 * @alloc_shared: if set it is shared else dedicated
2679 * @num_items: number of entries requested for FD resource type
2680 * @counter_id: counter index returned by AQ call
2683 ice_alloc_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items,
2686 struct ice_aqc_alloc_free_res_elem *buf;
2687 enum ice_status status;
2690 /* Allocate resource */
2691 buf_len = struct_size(buf, elem, 1);
2692 buf = kzalloc(buf_len, GFP_KERNEL);
2694 return ICE_ERR_NO_MEMORY;
2696 buf->num_elems = cpu_to_le16(num_items);
2697 buf->res_type = cpu_to_le16(((type << ICE_AQC_RES_TYPE_S) &
2698 ICE_AQC_RES_TYPE_M) | alloc_shared);
2700 status = ice_aq_alloc_free_res(hw, 1, buf, buf_len,
2701 ice_aqc_opc_alloc_res, NULL);
2705 *counter_id = le16_to_cpu(buf->elem[0].e.sw_resp);
2713 * ice_free_res_cntr - free resource counter
2714 * @hw: pointer to the hardware structure
2715 * @type: type of resource
2716 * @alloc_shared: if set it is shared else dedicated
2717 * @num_items: number of entries to be freed for FD resource type
2718 * @counter_id: counter ID resource which needs to be freed
2721 ice_free_res_cntr(struct ice_hw *hw, u8 type, u8 alloc_shared, u16 num_items,
2724 struct ice_aqc_alloc_free_res_elem *buf;
2725 enum ice_status status;
2729 buf_len = struct_size(buf, elem, 1);
2730 buf = kzalloc(buf_len, GFP_KERNEL);
2732 return ICE_ERR_NO_MEMORY;
2734 buf->num_elems = cpu_to_le16(num_items);
2735 buf->res_type = cpu_to_le16(((type << ICE_AQC_RES_TYPE_S) &
2736 ICE_AQC_RES_TYPE_M) | alloc_shared);
2737 buf->elem[0].e.sw_resp = cpu_to_le16(counter_id);
2739 status = ice_aq_alloc_free_res(hw, 1, buf, buf_len,
2740 ice_aqc_opc_free_res, NULL);
2742 ice_debug(hw, ICE_DBG_SW, "counter resource could not be freed\n");
2749 * ice_replay_vsi_fltr - Replay filters for requested VSI
2750 * @hw: pointer to the hardware structure
2751 * @vsi_handle: driver VSI handle
2752 * @recp_id: Recipe ID for which rules need to be replayed
2753 * @list_head: list for which filters need to be replayed
2755 * Replays the filter of recipe recp_id for a VSI represented via vsi_handle.
2756 * It is required to pass valid VSI handle.
2758 static enum ice_status
2759 ice_replay_vsi_fltr(struct ice_hw *hw, u16 vsi_handle, u8 recp_id,
2760 struct list_head *list_head)
2762 struct ice_fltr_mgmt_list_entry *itr;
2763 enum ice_status status = 0;
2766 if (list_empty(list_head))
2768 hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle);
2770 list_for_each_entry(itr, list_head, list_entry) {
2771 struct ice_fltr_list_entry f_entry;
2773 f_entry.fltr_info = itr->fltr_info;
2774 if (itr->vsi_count < 2 && recp_id != ICE_SW_LKUP_VLAN &&
2775 itr->fltr_info.vsi_handle == vsi_handle) {
2776 /* update the src in case it is VSI num */
2777 if (f_entry.fltr_info.src_id == ICE_SRC_ID_VSI)
2778 f_entry.fltr_info.src = hw_vsi_id;
2779 status = ice_add_rule_internal(hw, recp_id, &f_entry);
2784 if (!itr->vsi_list_info ||
2785 !test_bit(vsi_handle, itr->vsi_list_info->vsi_map))
2787 /* Clearing it so that the logic can add it back */
2788 clear_bit(vsi_handle, itr->vsi_list_info->vsi_map);
2789 f_entry.fltr_info.vsi_handle = vsi_handle;
2790 f_entry.fltr_info.fltr_act = ICE_FWD_TO_VSI;
2791 /* update the src in case it is VSI num */
2792 if (f_entry.fltr_info.src_id == ICE_SRC_ID_VSI)
2793 f_entry.fltr_info.src = hw_vsi_id;
2794 if (recp_id == ICE_SW_LKUP_VLAN)
2795 status = ice_add_vlan_internal(hw, &f_entry);
2797 status = ice_add_rule_internal(hw, recp_id, &f_entry);
2806 * ice_replay_vsi_all_fltr - replay all filters stored in bookkeeping lists
2807 * @hw: pointer to the hardware structure
2808 * @vsi_handle: driver VSI handle
2810 * Replays filters for requested VSI via vsi_handle.
2812 enum ice_status ice_replay_vsi_all_fltr(struct ice_hw *hw, u16 vsi_handle)
2814 struct ice_switch_info *sw = hw->switch_info;
2815 enum ice_status status = 0;
2818 for (i = 0; i < ICE_SW_LKUP_LAST; i++) {
2819 struct list_head *head;
2821 head = &sw->recp_list[i].filt_replay_rules;
2822 status = ice_replay_vsi_fltr(hw, vsi_handle, i, head);
2830 * ice_rm_all_sw_replay_rule_info - deletes filter replay rules
2831 * @hw: pointer to the HW struct
2833 * Deletes the filter replay rules.
2835 void ice_rm_all_sw_replay_rule_info(struct ice_hw *hw)
2837 struct ice_switch_info *sw = hw->switch_info;
2843 for (i = 0; i < ICE_SW_LKUP_LAST; i++) {
2844 if (!list_empty(&sw->recp_list[i].filt_replay_rules)) {
2845 struct list_head *l_head;
2847 l_head = &sw->recp_list[i].filt_replay_rules;
2848 ice_rem_sw_rule_info(hw, l_head);