root/drivers/net/ethernet/intel/ice/ice_switch.h

INCLUDED FROM

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright (c) 2018, Intel Corporation. */
   3 
   4 #ifndef _ICE_SWITCH_H_
   5 #define _ICE_SWITCH_H_
   6 
   7 #include "ice_common.h"
   8 
   9 #define ICE_SW_CFG_MAX_BUF_LEN 2048
  10 #define ICE_DFLT_VSI_INVAL 0xff
  11 #define ICE_FLTR_RX BIT(0)
  12 #define ICE_FLTR_TX BIT(1)
  13 #define ICE_FLTR_TX_RX (ICE_FLTR_RX | ICE_FLTR_TX)
  14 #define ICE_VSI_INVAL_ID 0xffff
  15 #define ICE_INVAL_Q_HANDLE 0xFFFF
  16 
  17 /* VSI queue context structure */
  18 struct ice_q_ctx {
  19         u16  q_handle;
  20 };
  21 
  22 /* VSI context structure for add/get/update/free operations */
  23 struct ice_vsi_ctx {
  24         u16 vsi_num;
  25         u16 vsis_allocd;
  26         u16 vsis_unallocated;
  27         u16 flags;
  28         struct ice_aqc_vsi_props info;
  29         struct ice_sched_vsi_info sched;
  30         u8 alloc_from_pool;
  31         u8 vf_num;
  32         u16 num_lan_q_entries[ICE_MAX_TRAFFIC_CLASS];
  33         struct ice_q_ctx *lan_q_ctx[ICE_MAX_TRAFFIC_CLASS];
  34 };
  35 
  36 enum ice_sw_fwd_act_type {
  37         ICE_FWD_TO_VSI = 0,
  38         ICE_FWD_TO_VSI_LIST, /* Do not use this when adding filter */
  39         ICE_FWD_TO_Q,
  40         ICE_FWD_TO_QGRP,
  41         ICE_DROP_PACKET,
  42         ICE_INVAL_ACT
  43 };
  44 
  45 /* Switch recipe ID enum values are specific to hardware */
  46 enum ice_sw_lkup_type {
  47         ICE_SW_LKUP_ETHERTYPE = 0,
  48         ICE_SW_LKUP_MAC = 1,
  49         ICE_SW_LKUP_MAC_VLAN = 2,
  50         ICE_SW_LKUP_PROMISC = 3,
  51         ICE_SW_LKUP_VLAN = 4,
  52         ICE_SW_LKUP_DFLT = 5,
  53         ICE_SW_LKUP_ETHERTYPE_MAC = 8,
  54         ICE_SW_LKUP_PROMISC_VLAN = 9,
  55         ICE_SW_LKUP_LAST
  56 };
  57 
  58 /* type of filter src ID */
  59 enum ice_src_id {
  60         ICE_SRC_ID_UNKNOWN = 0,
  61         ICE_SRC_ID_VSI,
  62         ICE_SRC_ID_QUEUE,
  63         ICE_SRC_ID_LPORT,
  64 };
  65 
  66 struct ice_fltr_info {
  67         /* Look up information: how to look up packet */
  68         enum ice_sw_lkup_type lkup_type;
  69         /* Forward action: filter action to do after lookup */
  70         enum ice_sw_fwd_act_type fltr_act;
  71         /* rule ID returned by firmware once filter rule is created */
  72         u16 fltr_rule_id;
  73         u16 flag;
  74 
  75         /* Source VSI for LOOKUP_TX or source port for LOOKUP_RX */
  76         u16 src;
  77         enum ice_src_id src_id;
  78 
  79         union {
  80                 struct {
  81                         u8 mac_addr[ETH_ALEN];
  82                 } mac;
  83                 struct {
  84                         u8 mac_addr[ETH_ALEN];
  85                         u16 vlan_id;
  86                 } mac_vlan;
  87                 struct {
  88                         u16 vlan_id;
  89                 } vlan;
  90                 /* Set lkup_type as ICE_SW_LKUP_ETHERTYPE
  91                  * if just using ethertype as filter. Set lkup_type as
  92                  * ICE_SW_LKUP_ETHERTYPE_MAC if MAC also needs to be
  93                  * passed in as filter.
  94                  */
  95                 struct {
  96                         u16 ethertype;
  97                         u8 mac_addr[ETH_ALEN]; /* optional */
  98                 } ethertype_mac;
  99         } l_data; /* Make sure to zero out the memory of l_data before using
 100                    * it or only set the data associated with lookup match
 101                    * rest everything should be zero
 102                    */
 103 
 104         /* Depending on filter action */
 105         union {
 106                 /* queue ID in case of ICE_FWD_TO_Q and starting
 107                  * queue ID in case of ICE_FWD_TO_QGRP.
 108                  */
 109                 u16 q_id:11;
 110                 u16 hw_vsi_id:10;
 111                 u16 vsi_list_id:10;
 112         } fwd_id;
 113 
 114         /* Sw VSI handle */
 115         u16 vsi_handle;
 116 
 117         /* Set to num_queues if action is ICE_FWD_TO_QGRP. This field
 118          * determines the range of queues the packet needs to be forwarded to.
 119          * Note that qgrp_size must be set to a power of 2.
 120          */
 121         u8 qgrp_size;
 122 
 123         /* Rule creations populate these indicators basing on the switch type */
 124         u8 lb_en;       /* Indicate if packet can be looped back */
 125         u8 lan_en;      /* Indicate if packet can be forwarded to the uplink */
 126 };
 127 
 128 struct ice_sw_recipe {
 129         struct list_head l_entry;
 130 
 131         /* To protect modification of filt_rule list
 132          * defined below
 133          */
 134         struct mutex filt_rule_lock;
 135 
 136         /* List of type ice_fltr_mgmt_list_entry */
 137         struct list_head filt_rules;
 138         struct list_head filt_replay_rules;
 139 
 140         /* linked list of type recipe_list_entry */
 141         struct list_head rg_list;
 142         /* linked list of type ice_sw_fv_list_entry*/
 143         struct list_head fv_list;
 144         struct ice_aqc_recipe_data_elem *r_buf;
 145         u8 recp_count;
 146         u8 root_rid;
 147         u8 num_profs;
 148         u8 *prof_ids;
 149 
 150         /* recipe bitmap: what all recipes makes this recipe */
 151         DECLARE_BITMAP(r_bitmap, ICE_MAX_NUM_RECIPES);
 152 };
 153 
 154 /* Bookkeeping structure to hold bitmap of VSIs corresponding to VSI list ID */
 155 struct ice_vsi_list_map_info {
 156         struct list_head list_entry;
 157         DECLARE_BITMAP(vsi_map, ICE_MAX_VSI);
 158         u16 vsi_list_id;
 159         /* counter to track how many rules are reusing this VSI list */
 160         u16 ref_cnt;
 161 };
 162 
 163 struct ice_fltr_list_entry {
 164         struct list_head list_entry;
 165         enum ice_status status;
 166         struct ice_fltr_info fltr_info;
 167 };
 168 
 169 /* This defines an entry in the list that maintains MAC or VLAN membership
 170  * to HW list mapping, since multiple VSIs can subscribe to the same MAC or
 171  * VLAN. As an optimization the VSI list should be created only when a
 172  * second VSI becomes a subscriber to the same MAC address. VSI lists are always
 173  * used for VLAN membership.
 174  */
 175 struct ice_fltr_mgmt_list_entry {
 176         /* back pointer to VSI list ID to VSI list mapping */
 177         struct ice_vsi_list_map_info *vsi_list_info;
 178         u16 vsi_count;
 179 #define ICE_INVAL_LG_ACT_INDEX 0xffff
 180         u16 lg_act_idx;
 181 #define ICE_INVAL_SW_MARKER_ID 0xffff
 182         u16 sw_marker_id;
 183         struct list_head list_entry;
 184         struct ice_fltr_info fltr_info;
 185 #define ICE_INVAL_COUNTER_ID 0xff
 186         u8 counter_index;
 187 };
 188 
 189 enum ice_promisc_flags {
 190         ICE_PROMISC_UCAST_RX = 0x1,
 191         ICE_PROMISC_UCAST_TX = 0x2,
 192         ICE_PROMISC_MCAST_RX = 0x4,
 193         ICE_PROMISC_MCAST_TX = 0x8,
 194         ICE_PROMISC_BCAST_RX = 0x10,
 195         ICE_PROMISC_BCAST_TX = 0x20,
 196         ICE_PROMISC_VLAN_RX = 0x40,
 197         ICE_PROMISC_VLAN_TX = 0x80,
 198 };
 199 
 200 /* VSI related commands */
 201 enum ice_status
 202 ice_add_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
 203             struct ice_sq_cd *cd);
 204 enum ice_status
 205 ice_free_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
 206              bool keep_vsi_alloc, struct ice_sq_cd *cd);
 207 enum ice_status
 208 ice_update_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
 209                struct ice_sq_cd *cd);
 210 bool ice_is_vsi_valid(struct ice_hw *hw, u16 vsi_handle);
 211 struct ice_vsi_ctx *ice_get_vsi_ctx(struct ice_hw *hw, u16 vsi_handle);
 212 void ice_clear_all_vsi_ctx(struct ice_hw *hw);
 213 /* Switch config */
 214 enum ice_status ice_get_initial_sw_cfg(struct ice_hw *hw);
 215 
 216 /* Switch/bridge related commands */
 217 enum ice_status ice_update_sw_rule_bridge_mode(struct ice_hw *hw);
 218 enum ice_status ice_add_mac(struct ice_hw *hw, struct list_head *m_lst);
 219 enum ice_status ice_remove_mac(struct ice_hw *hw, struct list_head *m_lst);
 220 enum ice_status
 221 ice_add_eth_mac(struct ice_hw *hw, struct list_head *em_list);
 222 enum ice_status
 223 ice_remove_eth_mac(struct ice_hw *hw, struct list_head *em_list);
 224 void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_handle);
 225 enum ice_status
 226 ice_add_vlan(struct ice_hw *hw, struct list_head *m_list);
 227 enum ice_status ice_remove_vlan(struct ice_hw *hw, struct list_head *v_list);
 228 
 229 /* Promisc/defport setup for VSIs */
 230 enum ice_status
 231 ice_cfg_dflt_vsi(struct ice_hw *hw, u16 vsi_handle, bool set, u8 direction);
 232 enum ice_status
 233 ice_set_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask,
 234                     u16 vid);
 235 enum ice_status
 236 ice_clear_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask,
 237                       u16 vid);
 238 enum ice_status
 239 ice_set_vlan_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask,
 240                          bool rm_vlan_promisc);
 241 
 242 enum ice_status ice_init_def_sw_recp(struct ice_hw *hw);
 243 u16 ice_get_hw_vsi_num(struct ice_hw *hw, u16 vsi_handle);
 244 bool ice_is_vsi_valid(struct ice_hw *hw, u16 vsi_handle);
 245 
 246 enum ice_status ice_replay_vsi_all_fltr(struct ice_hw *hw, u16 vsi_handle);
 247 void ice_rm_all_sw_replay_rule_info(struct ice_hw *hw);
 248 
 249 #endif /* _ICE_SWITCH_H_ */