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// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2018-2020, Intel Corporation. */
#include "ice.h"
#include "ice_fltr.h"
/**
* ice_fltr_free_list - free filter lists helper
* @dev: pointer to the device struct
* @h: pointer to the list head to be freed
*
* Helper function to free filter lists previously created using
* ice_fltr_add_mac_to_list
*/
void ice_fltr_free_list(struct device *dev, struct list_head *h)
{
struct ice_fltr_list_entry *e, *tmp;
list_for_each_entry_safe(e, tmp, h, list_entry) {
list_del(&e->list_entry);
devm_kfree(dev, e);
}
}
/**
* ice_fltr_add_entry_to_list - allocate and add filter entry to list
* @dev: pointer to device needed by alloc function
* @info: filter info struct that gets added to the passed in list
* @list: pointer to the list which contains MAC filters entry
*/
static int
ice_fltr_add_entry_to_list(struct device *dev, struct ice_fltr_info *info,
struct list_head *list)
{
struct ice_fltr_list_entry *entry;
entry = devm_kzalloc(dev, sizeof(*entry), GFP_ATOMIC);
if (!entry)
return -ENOMEM;
entry->fltr_info = *info;
INIT_LIST_HEAD(&entry->list_entry);
list_add(&entry->list_entry, list);
return 0;
}
/**
* ice_fltr_set_vlan_vsi_promisc
* @hw: pointer to the hardware structure
* @vsi: the VSI being configured
* @promisc_mask: mask of promiscuous config bits
*
* Set VSI with all associated VLANs to given promiscuous mode(s)
*/
enum ice_status
ice_fltr_set_vlan_vsi_promisc(struct ice_hw *hw, struct ice_vsi *vsi,
u8 promisc_mask)
{
return ice_set_vlan_vsi_promisc(hw, vsi->idx, promisc_mask, false);
}
/**
* ice_fltr_clear_vlan_vsi_promisc
* @hw: pointer to the hardware structure
* @vsi: the VSI being configured
* @promisc_mask: mask of promiscuous config bits
*
* Clear VSI with all associated VLANs to given promiscuous mode(s)
*/
enum ice_status
ice_fltr_clear_vlan_vsi_promisc(struct ice_hw *hw, struct ice_vsi *vsi,
u8 promisc_mask)
{
return ice_set_vlan_vsi_promisc(hw, vsi->idx, promisc_mask, true);
}
/**
* ice_fltr_clear_vsi_promisc - clear specified promiscuous mode(s)
* @hw: pointer to the hardware structure
* @vsi_handle: VSI handle to clear mode
* @promisc_mask: mask of promiscuous config bits to clear
* @vid: VLAN ID to clear VLAN promiscuous
*/
enum ice_status
ice_fltr_clear_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask,
u16 vid)
{
return ice_clear_vsi_promisc(hw, vsi_handle, promisc_mask, vid);
}
/**
* ice_fltr_set_vsi_promisc - set given VSI to given promiscuous mode(s)
* @hw: pointer to the hardware structure
* @vsi_handle: VSI handle to configure
* @promisc_mask: mask of promiscuous config bits
* @vid: VLAN ID to set VLAN promiscuous
*/
enum ice_status
ice_fltr_set_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask,
u16 vid)
{
return ice_set_vsi_promisc(hw, vsi_handle, promisc_mask, vid);
}
/**
* ice_fltr_add_mac_list - add list of MAC filters
* @vsi: pointer to VSI struct
* @list: list of filters
*/
enum ice_status
ice_fltr_add_mac_list(struct ice_vsi *vsi, struct list_head *list)
{
return ice_add_mac(&vsi->back->hw, list);
}
/**
* ice_fltr_remove_mac_list - remove list of MAC filters
* @vsi: pointer to VSI struct
* @list: list of filters
*/
enum ice_status
ice_fltr_remove_mac_list(struct ice_vsi *vsi, struct list_head *list)
{
return ice_remove_mac(&vsi->back->hw, list);
}
/**
* ice_fltr_add_vlan_list - add list of VLAN filters
* @vsi: pointer to VSI struct
* @list: list of filters
*/
static enum ice_status
ice_fltr_add_vlan_list(struct ice_vsi *vsi, struct list_head *list)
{
return ice_add_vlan(&vsi->back->hw, list);
}
/**
* ice_fltr_remove_vlan_list - remove list of VLAN filters
* @vsi: pointer to VSI struct
* @list: list of filters
*/
static enum ice_status
ice_fltr_remove_vlan_list(struct ice_vsi *vsi, struct list_head *list)
{
return ice_remove_vlan(&vsi->back->hw, list);
}
/**
* ice_fltr_add_eth_list - add list of ethertype filters
* @vsi: pointer to VSI struct
* @list: list of filters
*/
static enum ice_status
ice_fltr_add_eth_list(struct ice_vsi *vsi, struct list_head *list)
{
return ice_add_eth_mac(&vsi->back->hw, list);
}
/**
* ice_fltr_remove_eth_list - remove list of ethertype filters
* @vsi: pointer to VSI struct
* @list: list of filters
*/
static enum ice_status
ice_fltr_remove_eth_list(struct ice_vsi *vsi, struct list_head *list)
{
return ice_remove_eth_mac(&vsi->back->hw, list);
}
/**
* ice_fltr_remove_all - remove all filters associated with VSI
* @vsi: pointer to VSI struct
*/
void ice_fltr_remove_all(struct ice_vsi *vsi)
{
ice_remove_vsi_fltr(&vsi->back->hw, vsi->idx);
}
/**
* ice_fltr_add_mac_to_list - add MAC filter info to exsisting list
* @vsi: pointer to VSI struct
* @list: list to add filter info to
* @mac: MAC address to add
* @action: filter action
*/
int
ice_fltr_add_mac_to_list(struct ice_vsi *vsi, struct list_head *list,
const u8 *mac, enum ice_sw_fwd_act_type action)
{
struct ice_fltr_info info = { 0 };
info.flag = ICE_FLTR_TX;
info.src_id = ICE_SRC_ID_VSI;
info.lkup_type = ICE_SW_LKUP_MAC;
info.fltr_act = action;
info.vsi_handle = vsi->idx;
ether_addr_copy(info.l_data.mac.mac_addr, mac);
return ice_fltr_add_entry_to_list(ice_pf_to_dev(vsi->back), &info,
list);
}
/**
* ice_fltr_add_vlan_to_list - add VLAN filter info to exsisting list
* @vsi: pointer to VSI struct
* @list: list to add filter info to
* @vlan_id: VLAN ID to add
* @action: filter action
*/
static int
ice_fltr_add_vlan_to_list(struct ice_vsi *vsi, struct list_head *list,
u16 vlan_id, enum ice_sw_fwd_act_type action)
{
struct ice_fltr_info info = { 0 };
info.flag = ICE_FLTR_TX;
info.src_id = ICE_SRC_ID_VSI;
info.lkup_type = ICE_SW_LKUP_VLAN;
info.fltr_act = action;
info.vsi_handle = vsi->idx;
info.l_data.vlan.vlan_id = vlan_id;
return ice_fltr_add_entry_to_list(ice_pf_to_dev(vsi->back), &info,
list);
}
/**
* ice_fltr_add_eth_to_list - add ethertype filter info to exsisting list
* @vsi: pointer to VSI struct
* @list: list to add filter info to
* @ethertype: ethertype of packet that matches filter
* @flag: filter direction, Tx or Rx
* @action: filter action
*/
static int
ice_fltr_add_eth_to_list(struct ice_vsi *vsi, struct list_head *list,
u16 ethertype, u16 flag,
enum ice_sw_fwd_act_type action)
{
struct ice_fltr_info info = { 0 };
info.flag = flag;
info.lkup_type = ICE_SW_LKUP_ETHERTYPE;
info.fltr_act = action;
info.vsi_handle = vsi->idx;
info.l_data.ethertype_mac.ethertype = ethertype;
if (flag == ICE_FLTR_TX)
info.src_id = ICE_SRC_ID_VSI;
else
info.src_id = ICE_SRC_ID_LPORT;
return ice_fltr_add_entry_to_list(ice_pf_to_dev(vsi->back), &info,
list);
}
/**
* ice_fltr_prepare_mac - add or remove MAC rule
* @vsi: pointer to VSI struct
* @mac: MAC address to add
* @action: action to be performed on filter match
* @mac_action: pointer to add or remove MAC function
*/
static enum ice_status
ice_fltr_prepare_mac(struct ice_vsi *vsi, const u8 *mac,
enum ice_sw_fwd_act_type action,
enum ice_status (*mac_action)(struct ice_vsi *,
struct list_head *))
{
enum ice_status result;
LIST_HEAD(tmp_list);
if (ice_fltr_add_mac_to_list(vsi, &tmp_list, mac, action)) {
ice_fltr_free_list(ice_pf_to_dev(vsi->back), &tmp_list);
return ICE_ERR_NO_MEMORY;
}
result = mac_action(vsi, &tmp_list);
ice_fltr_free_list(ice_pf_to_dev(vsi->back), &tmp_list);
return result;
}
/**
* ice_fltr_prepare_mac_and_broadcast - add or remove MAC and broadcast filter
* @vsi: pointer to VSI struct
* @mac: MAC address to add
* @action: action to be performed on filter match
* @mac_action: pointer to add or remove MAC function
*/
static enum ice_status
ice_fltr_prepare_mac_and_broadcast(struct ice_vsi *vsi, const u8 *mac,
enum ice_sw_fwd_act_type action,
enum ice_status(*mac_action)
(struct ice_vsi *, struct list_head *))
{
u8 broadcast[ETH_ALEN];
enum ice_status result;
LIST_HEAD(tmp_list);
eth_broadcast_addr(broadcast);
if (ice_fltr_add_mac_to_list(vsi, &tmp_list, mac, action) ||
ice_fltr_add_mac_to_list(vsi, &tmp_list, broadcast, action)) {
ice_fltr_free_list(ice_pf_to_dev(vsi->back), &tmp_list);
return ICE_ERR_NO_MEMORY;
}
result = mac_action(vsi, &tmp_list);
ice_fltr_free_list(ice_pf_to_dev(vsi->back), &tmp_list);
return result;
}
/**
* ice_fltr_prepare_vlan - add or remove VLAN filter
* @vsi: pointer to VSI struct
* @vlan_id: VLAN ID to add
* @action: action to be performed on filter match
* @vlan_action: pointer to add or remove VLAN function
*/
static enum ice_status
ice_fltr_prepare_vlan(struct ice_vsi *vsi, u16 vlan_id,
enum ice_sw_fwd_act_type action,
enum ice_status (*vlan_action)(struct ice_vsi *,
struct list_head *))
{
enum ice_status result;
LIST_HEAD(tmp_list);
if (ice_fltr_add_vlan_to_list(vsi, &tmp_list, vlan_id, action))
return ICE_ERR_NO_MEMORY;
result = vlan_action(vsi, &tmp_list);
ice_fltr_free_list(ice_pf_to_dev(vsi->back), &tmp_list);
return result;
}
/**
* ice_fltr_prepare_eth - add or remove ethertype filter
* @vsi: pointer to VSI struct
* @ethertype: ethertype of packet to be filtered
* @flag: direction of packet, Tx or Rx
* @action: action to be performed on filter match
* @eth_action: pointer to add or remove ethertype function
*/
static enum ice_status
ice_fltr_prepare_eth(struct ice_vsi *vsi, u16 ethertype, u16 flag,
enum ice_sw_fwd_act_type action,
enum ice_status (*eth_action)(struct ice_vsi *,
struct list_head *))
{
enum ice_status result;
LIST_HEAD(tmp_list);
if (ice_fltr_add_eth_to_list(vsi, &tmp_list, ethertype, flag, action))
return ICE_ERR_NO_MEMORY;
result = eth_action(vsi, &tmp_list);
ice_fltr_free_list(ice_pf_to_dev(vsi->back), &tmp_list);
return result;
}
/**
* ice_fltr_add_mac - add single MAC filter
* @vsi: pointer to VSI struct
* @mac: MAC to add
* @action: action to be performed on filter match
*/
enum ice_status ice_fltr_add_mac(struct ice_vsi *vsi, const u8 *mac,
enum ice_sw_fwd_act_type action)
{
return ice_fltr_prepare_mac(vsi, mac, action, ice_fltr_add_mac_list);
}
/**
* ice_fltr_add_mac_and_broadcast - add single MAC and broadcast
* @vsi: pointer to VSI struct
* @mac: MAC to add
* @action: action to be performed on filter match
*/
enum ice_status
ice_fltr_add_mac_and_broadcast(struct ice_vsi *vsi, const u8 *mac,
enum ice_sw_fwd_act_type action)
{
return ice_fltr_prepare_mac_and_broadcast(vsi, mac, action,
ice_fltr_add_mac_list);
}
/**
* ice_fltr_remove_mac - remove MAC filter
* @vsi: pointer to VSI struct
* @mac: filter MAC to remove
* @action: action to remove
*/
enum ice_status ice_fltr_remove_mac(struct ice_vsi *vsi, const u8 *mac,
enum ice_sw_fwd_act_type action)
{
return ice_fltr_prepare_mac(vsi, mac, action, ice_fltr_remove_mac_list);
}
/**
* ice_fltr_add_vlan - add single VLAN filter
* @vsi: pointer to VSI struct
* @vlan_id: VLAN ID to add
* @action: action to be performed on filter match
*/
enum ice_status ice_fltr_add_vlan(struct ice_vsi *vsi, u16 vlan_id,
enum ice_sw_fwd_act_type action)
{
return ice_fltr_prepare_vlan(vsi, vlan_id, action,
ice_fltr_add_vlan_list);
}
/**
* ice_fltr_remove_vlan - remove VLAN filter
* @vsi: pointer to VSI struct
* @vlan_id: filter VLAN to remove
* @action: action to remove
*/
enum ice_status ice_fltr_remove_vlan(struct ice_vsi *vsi, u16 vlan_id,
enum ice_sw_fwd_act_type action)
{
return ice_fltr_prepare_vlan(vsi, vlan_id, action,
ice_fltr_remove_vlan_list);
}
/**
* ice_fltr_add_eth - add specyfic ethertype filter
* @vsi: pointer to VSI struct
* @ethertype: ethertype of filter
* @flag: direction of packet to be filtered, Tx or Rx
* @action: action to be performed on filter match
*/
enum ice_status ice_fltr_add_eth(struct ice_vsi *vsi, u16 ethertype, u16 flag,
enum ice_sw_fwd_act_type action)
{
return ice_fltr_prepare_eth(vsi, ethertype, flag, action,
ice_fltr_add_eth_list);
}
/**
* ice_fltr_remove_eth - remove ethertype filter
* @vsi: pointer to VSI struct
* @ethertype: ethertype of filter
* @flag: direction of filter
* @action: action to remove
*/
enum ice_status ice_fltr_remove_eth(struct ice_vsi *vsi, u16 ethertype,
u16 flag, enum ice_sw_fwd_act_type action)
{
return ice_fltr_prepare_eth(vsi, ethertype, flag, action,
ice_fltr_remove_eth_list);
}
/**
* ice_fltr_update_rule_flags - update lan_en/lb_en flags
* @hw: pointer to hw
* @rule_id: id of rule being updated
* @recipe_id: recipe id of rule
* @act: current action field
* @type: Rx or Tx
* @src: source VSI
* @new_flags: combinations of lb_en and lan_en
*/
static enum ice_status
ice_fltr_update_rule_flags(struct ice_hw *hw, u16 rule_id, u16 recipe_id,
u32 act, u16 type, u16 src, u32 new_flags)
{
struct ice_aqc_sw_rules_elem *s_rule;
enum ice_status err;
u32 flags_mask;
s_rule = kzalloc(ICE_SW_RULE_RX_TX_NO_HDR_SIZE, GFP_KERNEL);
if (!s_rule)
return ICE_ERR_NO_MEMORY;
flags_mask = ICE_SINGLE_ACT_LB_ENABLE | ICE_SINGLE_ACT_LAN_ENABLE;
act &= ~flags_mask;
act |= (flags_mask & new_flags);
s_rule->pdata.lkup_tx_rx.recipe_id = cpu_to_le16(recipe_id);
s_rule->pdata.lkup_tx_rx.index = cpu_to_le16(rule_id);
s_rule->pdata.lkup_tx_rx.act = cpu_to_le32(act);
if (type & ICE_FLTR_RX) {
s_rule->pdata.lkup_tx_rx.src =
cpu_to_le16(hw->port_info->lport);
s_rule->type = cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_RX);
} else {
s_rule->pdata.lkup_tx_rx.src = cpu_to_le16(src);
s_rule->type = cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_TX);
}
err = ice_aq_sw_rules(hw, s_rule, ICE_SW_RULE_RX_TX_NO_HDR_SIZE, 1,
ice_aqc_opc_update_sw_rules, NULL);
kfree(s_rule);
return err;
}
/**
* ice_fltr_build_action - build action for rule
* @vsi_id: id of VSI which is use to build action
*/
static u32 ice_fltr_build_action(u16 vsi_id)
{
return ((vsi_id << ICE_SINGLE_ACT_VSI_ID_S) & ICE_SINGLE_ACT_VSI_ID_M) |
ICE_SINGLE_ACT_VSI_FORWARDING | ICE_SINGLE_ACT_VALID_BIT;
}
/**
* ice_fltr_update_flags_dflt_rule - update flags on default rule
* @vsi: pointer to VSI
* @rule_id: id of rule
* @direction: Tx or Rx
* @new_flags: flags to update
*
* Function updates flags on default rule with ICE_SW_LKUP_DFLT.
*
* Flags should be a combination of ICE_SINGLE_ACT_LB_ENABLE and
* ICE_SINGLE_ACT_LAN_ENABLE.
*/
enum ice_status
ice_fltr_update_flags_dflt_rule(struct ice_vsi *vsi, u16 rule_id, u8 direction,
u32 new_flags)
{
u32 action = ice_fltr_build_action(vsi->vsi_num);
struct ice_hw *hw = &vsi->back->hw;
return ice_fltr_update_rule_flags(hw, rule_id, ICE_SW_LKUP_DFLT, action,
direction, vsi->vsi_num, new_flags);
}
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