net/ice/base: support programming a new switch recipe

1. Added an interface to support adding advanced switch rules.
2. Advanced rules are provided in a form of protocol headers and values
to match in addition to actions (limited actions are current supported).
3. Retrieve field vectors for ICE configuration package to determine
extracted fields and extracted locations for recipe creation.
4. Chain multiple recipes together to match multiple protocol headers.
5. Add structure to manage the dynamic recipes.

Signed-off-by: Grishma Kotecha <grishma.kotecha@intel.com>
Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com>
Signed-off-by: Leyi Rong <leyi.rong@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

drivers/net/ice/base/ice_adminq_cmd.h

@@ -710,6 +710,7 @@ struct ice_aqc_recipe_content {
 #define ICE_AQ_RECIPE_ID_S		0
 #define ICE_AQ_RECIPE_ID_M		(0x3F << ICE_AQ_RECIPE_ID_S)
 #define ICE_AQ_RECIPE_ID_IS_ROOT	BIT(7)
+#define ICE_AQ_SW_ID_LKUP_IDX		0
 	u8 lkup_indx[5];
 #define ICE_AQ_RECIPE_LKUP_DATA_S	0
 #define ICE_AQ_RECIPE_LKUP_DATA_M	(0x3F << ICE_AQ_RECIPE_LKUP_DATA_S)

drivers/net/ice/base/ice_flex_pipe.c

@@ -734,7 +734,7 @@ static void ice_release_global_cfg_lock(struct ice_hw *hw)
  *
  * This function will request ownership of the change lock.
  */
-static enum ice_status
+enum ice_status
 ice_acquire_change_lock(struct ice_hw *hw, enum ice_aq_res_access_type access)
 {
 	ice_debug(hw, ICE_DBG_TRACE, "ice_acquire_change_lock");
@@ -749,7 +749,7 @@ ice_acquire_change_lock(struct ice_hw *hw, enum ice_aq_res_access_type access)
  *
  * This function will release the change lock using the proper Admin Command.
  */
-static void ice_release_change_lock(struct ice_hw *hw)
+void ice_release_change_lock(struct ice_hw *hw)
 {
 	ice_debug(hw, ICE_DBG_TRACE, "ice_release_change_lock");
 
@@ -1801,6 +1801,35 @@ void ice_pkg_buf_free(struct ice_hw *hw, struct ice_buf_build *bld)
 	ice_free(hw, bld);
 }
 
+/**
+ * ice_find_prot_off - find prot ID and offset pair, based on prof and FV index
+ * @hw: pointer to the hardware structure
+ * @blk: hardware block
+ * @prof: profile ID
+ * @fv_idx: field vector word index
+ * @prot: variable to receive the protocol ID
+ * @off: variable to receive the protocol offset
+ */
+enum ice_status
+ice_find_prot_off(struct ice_hw *hw, enum ice_block blk, u8 prof, u8 fv_idx,
+		  u8 *prot, u16 *off)
+{
+	struct ice_fv_word *fv_ext;
+
+	if (prof >= hw->blk[blk].es.count)
+		return ICE_ERR_PARAM;
+
+	if (fv_idx >= hw->blk[blk].es.fvw)
+		return ICE_ERR_PARAM;
+
+	fv_ext = hw->blk[blk].es.t + (prof * hw->blk[blk].es.fvw);
+
+	*prot = fv_ext[fv_idx].prot_id;
+	*off = fv_ext[fv_idx].off;
+
+	return ICE_SUCCESS;
+}
+
 /* PTG Management */
 
 /**

drivers/net/ice/base/ice_flex_pipe.h

@@ -15,7 +15,12 @@
 
 enum ice_status
 ice_update_pkg(struct ice_hw *hw, struct ice_buf *bufs, u32 count);
-
+enum ice_status
+ice_acquire_change_lock(struct ice_hw *hw, enum ice_aq_res_access_type access);
+void ice_release_change_lock(struct ice_hw *hw);
+enum ice_status
+ice_find_prot_off(struct ice_hw *hw, enum ice_block blk, u8 prof, u8 fv_idx,
+		  u8 *prot, u16 *off);
 struct ice_generic_seg_hdr *
 ice_find_seg_in_pkg(struct ice_hw *hw, u32 seg_type,
 		    struct ice_pkg_hdr *pkg_hdr);

drivers/net/ice/base/ice_switch.h

@@ -172,11 +172,21 @@ struct ice_sw_act_ctrl {
 	u8 qgrp_size;
 };
 
+struct ice_rule_query_data {
+	/* Recipe ID for which the requested rule was added */
+	u16 rid;
+	/* Rule ID that was added or is supposed to be removed */
+	u16 rule_id;
+	/* vsi_handle for which Rule was added or is supposed to be removed */
+	u16 vsi_handle;
+};
+
 struct ice_adv_rule_info {
 	enum ice_sw_tunnel_type tun_type;
 	struct ice_sw_act_ctrl sw_act;
 	u32 priority;
 	u8 rx; /* true means LOOKUP_RX otherwise LOOKUP_TX */
+	u16 fltr_rule_id;
 };
 
 /* A collection of one or more four word recipe */
@@ -222,6 +232,7 @@ struct ice_sw_recipe {
 	/* Profiles this recipe should be associated with */
 	struct LIST_HEAD_TYPE fv_list;
 
+#define ICE_MAX_NUM_PROFILES 256
 	/* Profiles this recipe is associated with */
 	u8 num_profs, *prof_ids;
 
@@ -281,6 +292,8 @@ struct ice_adv_fltr_mgmt_list_entry {
 	struct ice_adv_lkup_elem *lkups;
 	struct ice_adv_rule_info rule_info;
 	u16 lkups_cnt;
+	struct ice_vsi_list_map_info *vsi_list_info;
+	u16 vsi_count;
 };
 
 enum ice_promisc_flags {
@@ -421,7 +434,15 @@ enum ice_status
 ice_aq_map_recipe_to_profile(struct ice_hw *hw, u32 profile_id, u8 *r_bitmap,
 			     struct ice_sq_cd *cd);
 
+enum ice_status
+ice_aq_get_recipe_to_profile(struct ice_hw *hw, u32 profile_id, u8 *r_bitmap,
+			     struct ice_sq_cd *cd);
+
 enum ice_status ice_alloc_recipe(struct ice_hw *hw, u16 *recipe_id);
+enum ice_status
+ice_add_adv_rule(struct ice_hw *hw, struct ice_adv_lkup_elem *lkups,
+		 u16 lkups_cnt, struct ice_adv_rule_info *rinfo,
+		 struct ice_rule_query_data *added_entry);
 enum ice_status ice_replay_all_fltr(struct ice_hw *hw);
 
 enum ice_status ice_init_def_sw_recp(struct ice_hw *hw);