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

   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_VSI_INVAL_ID 0xffff
  12
  13 /* VSI context structure for add/get/update/free operations */
  14 struct ice_vsi_ctx {
  15         u16 vsi_num;
  16         u16 vsis_allocd;
  17         u16 vsis_unallocated;
  18         u16 flags;
  19         struct ice_aqc_vsi_props info;
  20         u8 alloc_from_pool;
  21 };
  22
  23 enum ice_sw_fwd_act_type {
  24         ICE_FWD_TO_VSI = 0,
  25         ICE_FWD_TO_VSI_LIST, /* Do not use this when adding filter */
  26         ICE_FWD_TO_Q,
  27         ICE_FWD_TO_QGRP,
  28         ICE_DROP_PACKET,
  29         ICE_INVAL_ACT
  30 };
  31
  32 /* Switch recipe ID enum values are specific to hardware */
  33 enum ice_sw_lkup_type {
  34         ICE_SW_LKUP_ETHERTYPE = 0,
  35         ICE_SW_LKUP_MAC = 1,
  36         ICE_SW_LKUP_MAC_VLAN = 2,
  37         ICE_SW_LKUP_PROMISC = 3,
  38         ICE_SW_LKUP_VLAN = 4,
  39         ICE_SW_LKUP_DFLT = 5,
  40         ICE_SW_LKUP_ETHERTYPE_MAC = 8,
  41         ICE_SW_LKUP_PROMISC_VLAN = 9,
  42 };
  43
  44 struct ice_fltr_info {
  45         /* Look up information: how to look up packet */
  46         enum ice_sw_lkup_type lkup_type;
  47         /* Forward action: filter action to do after lookup */
  48         enum ice_sw_fwd_act_type fltr_act;
  49         /* rule ID returned by firmware once filter rule is created */
  50         u16 fltr_rule_id;
  51         u16 flag;
  52 #define ICE_FLTR_RX             BIT(0)
  53 #define ICE_FLTR_TX             BIT(1)
  54 #define ICE_FLTR_TX_RX          (ICE_FLTR_RX | ICE_FLTR_TX)
  55
  56         /* Source VSI for LOOKUP_TX or source port for LOOKUP_RX */
  57         u16 src;
  58
  59         union {
  60                 struct {
  61                         u8 mac_addr[ETH_ALEN];
  62                 } mac;
  63                 struct {
  64                         u8 mac_addr[ETH_ALEN];
  65                         u16 vlan_id;
  66                 } mac_vlan;
  67                 struct {
  68                         u16 vlan_id;
  69                 } vlan;
  70                 /* Set lkup_type as ICE_SW_LKUP_ETHERTYPE
  71                  * if just using ethertype as filter. Set lkup_type as
  72                  * ICE_SW_LKUP_ETHERTYPE_MAC if MAC also needs to be
  73                  * passed in as filter.
  74                  */
  75                 struct {
  76                         u16 ethertype;
  77                         u8 mac_addr[ETH_ALEN]; /* optional */
  78                 } ethertype_mac;
  79         } l_data;
  80
  81         /* Depending on filter action */
  82         union {
  83                 /* queue id in case of ICE_FWD_TO_Q and starting
  84                  * queue id in case of ICE_FWD_TO_QGRP.
  85                  */
  86                 u16 q_id:11;
  87                 u16 vsi_id:10;
  88                 u16 vsi_list_id:10;
  89         } fwd_id;
  90
  91         /* Set to num_queues if action is ICE_FWD_TO_QGRP. This field
  92          * determines the range of queues the packet needs to be forwarded to
  93          */
  94         u8 qgrp_size;
  95
  96         /* Rule creations populate these indicators basing on the switch type */
  97         u8 lb_en;       /* Indicate if packet can be looped back */
  98         u8 lan_en;      /* Indicate if packet can be forwarded to the uplink */
  99 };
 100
 101 /* Bookkeeping structure to hold bitmap of VSIs corresponding to VSI list id */
 102 struct ice_vsi_list_map_info {
 103         struct list_head list_entry;
 104         DECLARE_BITMAP(vsi_map, ICE_MAX_VSI);
 105         u16 vsi_list_id;
 106 };
 107
 108 enum ice_sw_fltr_status {
 109         ICE_FLTR_STATUS_NEW = 0,
 110         ICE_FLTR_STATUS_FW_SUCCESS,
 111         ICE_FLTR_STATUS_FW_FAIL,
 112 };
 113
 114 struct ice_fltr_list_entry {
 115         struct list_head list_entry;
 116         enum ice_sw_fltr_status status;
 117         struct ice_fltr_info fltr_info;
 118 };
 119
 120 /* This defines an entry in the list that maintains MAC or VLAN membership
 121  * to HW list mapping, since multiple VSIs can subscribe to the same MAC or
 122  * VLAN. As an optimization the VSI list should be created only when a
 123  * second VSI becomes a subscriber to the VLAN address.
 124  */
 125 struct ice_fltr_mgmt_list_entry {
 126         /* back pointer to VSI list id to VSI list mapping */
 127         struct ice_vsi_list_map_info *vsi_list_info;
 128         u16 vsi_count;
 129 #define ICE_INVAL_LG_ACT_INDEX 0xffff
 130         u16 lg_act_idx;
 131 #define ICE_INVAL_SW_MARKER_ID 0xffff
 132         u16 sw_marker_id;
 133         struct list_head list_entry;
 134         struct ice_fltr_info fltr_info;
 135 #define ICE_INVAL_COUNTER_ID 0xff
 136         u8 counter_index;
 137 };
 138
 139 /* VSI related commands */
 140 enum ice_status
 141 ice_aq_add_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
 142                struct ice_sq_cd *cd);
 143 enum ice_status
 144 ice_aq_update_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
 145                   struct ice_sq_cd *cd);
 146 enum ice_status
 147 ice_aq_free_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
 148                 bool keep_vsi_alloc, struct ice_sq_cd *cd);
 149
 150 enum ice_status ice_get_initial_sw_cfg(struct ice_hw *hw);
 151
 152 /* Switch/bridge related commands */
 153 enum ice_status ice_add_mac(struct ice_hw *hw, struct list_head *m_lst);
 154 enum ice_status ice_remove_mac(struct ice_hw *hw, struct list_head *m_lst);
 155 void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_id);
 156 enum ice_status ice_add_vlan(struct ice_hw *hw, struct list_head *m_list);
 157 enum ice_status ice_remove_vlan(struct ice_hw *hw, struct list_head *v_list);
 158 enum ice_status
 159 ice_cfg_dflt_vsi(struct ice_hw *hw, u16 vsi_id, bool set, u8 direction);
 160
 161 #endif /* _ICE_SWITCH_H_ */