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linux/drivers/net/ethernet/intel/ice/ice_switch.c

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// SPDX-License-Identifier: GPL-2.0
/* Copyright (c) 2018, Intel Corporation. */
#include "ice_switch.h"
#define ICE_ETH_DA_OFFSET 0
#define ICE_ETH_ETHTYPE_OFFSET 12
#define ICE_ETH_VLAN_TCI_OFFSET 14
#define ICE_MAX_VLAN_ID 0xFFF
/* Dummy ethernet header needed in the ice_aqc_sw_rules_elem
* struct to configure any switch filter rules.
* {DA (6 bytes), SA(6 bytes),
* Ether type (2 bytes for header without VLAN tag) OR
* VLAN tag (4 bytes for header with VLAN tag) }
*
* Word on Hardcoded values
* byte 0 = 0x2: to identify it as locally administered DA MAC
* byte 6 = 0x2: to identify it as locally administered SA MAC
* byte 12 = 0x81 & byte 13 = 0x00:
* In case of VLAN filter first two bytes defines ether type (0x8100)
* and remaining two bytes are placeholder for programming a given VLAN ID
* In case of Ether type filter it is treated as header without VLAN tag
* and byte 12 and 13 is used to program a given Ether type instead
*/
#define DUMMY_ETH_HDR_LEN 16
static const u8 dummy_eth_header[DUMMY_ETH_HDR_LEN] = { 0x2, 0, 0, 0, 0, 0,
0x2, 0, 0, 0, 0, 0,
0x81, 0, 0, 0};
#define ICE_SW_RULE_RX_TX_ETH_HDR_SIZE \
(sizeof(struct ice_aqc_sw_rules_elem) - \
sizeof(((struct ice_aqc_sw_rules_elem *)0)->pdata) + \
sizeof(struct ice_sw_rule_lkup_rx_tx) + DUMMY_ETH_HDR_LEN - 1)
#define ICE_SW_RULE_RX_TX_NO_HDR_SIZE \
(sizeof(struct ice_aqc_sw_rules_elem) - \
sizeof(((struct ice_aqc_sw_rules_elem *)0)->pdata) + \
sizeof(struct ice_sw_rule_lkup_rx_tx) - 1)
#define ICE_SW_RULE_LG_ACT_SIZE(n) \
(sizeof(struct ice_aqc_sw_rules_elem) - \
sizeof(((struct ice_aqc_sw_rules_elem *)0)->pdata) + \
sizeof(struct ice_sw_rule_lg_act) - \
sizeof(((struct ice_sw_rule_lg_act *)0)->act) + \
((n) * sizeof(((struct ice_sw_rule_lg_act *)0)->act)))
#define ICE_SW_RULE_VSI_LIST_SIZE(n) \
(sizeof(struct ice_aqc_sw_rules_elem) - \
sizeof(((struct ice_aqc_sw_rules_elem *)0)->pdata) + \
sizeof(struct ice_sw_rule_vsi_list) - \
sizeof(((struct ice_sw_rule_vsi_list *)0)->vsi) + \
((n) * sizeof(((struct ice_sw_rule_vsi_list *)0)->vsi)))
/**
* ice_aq_alloc_free_res - command to allocate/free resources
* @hw: pointer to the HW struct
* @num_entries: number of resource entries in buffer
* @buf: Indirect buffer to hold data parameters and response
* @buf_size: size of buffer for indirect commands
* @opc: pass in the command opcode
* @cd: pointer to command details structure or NULL
*
* Helper function to allocate/free resources using the admin queue commands
*/
static enum ice_status
ice_aq_alloc_free_res(struct ice_hw *hw, u16 num_entries,
struct ice_aqc_alloc_free_res_elem *buf, u16 buf_size,
enum ice_adminq_opc opc, struct ice_sq_cd *cd)
{
struct ice_aqc_alloc_free_res_cmd *cmd;
struct ice_aq_desc desc;
cmd = &desc.params.sw_res_ctrl;
if (!buf)
return ICE_ERR_PARAM;
if (buf_size < (num_entries * sizeof(buf->elem[0])))
return ICE_ERR_PARAM;
ice_fill_dflt_direct_cmd_desc(&desc, opc);
desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
cmd->num_entries = cpu_to_le16(num_entries);
return ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
}
/**
* ice_init_def_sw_recp - initialize the recipe book keeping tables
* @hw: pointer to the HW struct
*
* Allocate memory for the entire recipe table and initialize the structures/
* entries corresponding to basic recipes.
*/
enum ice_status ice_init_def_sw_recp(struct ice_hw *hw)
{
struct ice_sw_recipe *recps;
u8 i;
recps = devm_kcalloc(ice_hw_to_dev(hw), ICE_MAX_NUM_RECIPES,
sizeof(*recps), GFP_KERNEL);
if (!recps)
return ICE_ERR_NO_MEMORY;
for (i = 0; i < ICE_SW_LKUP_LAST; i++) {
recps[i].root_rid = i;
INIT_LIST_HEAD(&recps[i].filt_rules);
INIT_LIST_HEAD(&recps[i].filt_replay_rules);
mutex_init(&recps[i].filt_rule_lock);
}
hw->switch_info->recp_list = recps;
return 0;
}
/**
* ice_aq_get_sw_cfg - get switch configuration
* @hw: pointer to the hardware structure
* @buf: pointer to the result buffer
* @buf_size: length of the buffer available for response
* @req_desc: pointer to requested descriptor
* @num_elems: pointer to number of elements
* @cd: pointer to command details structure or NULL
*
* Get switch configuration (0x0200) to be placed in 'buff'.
* This admin command returns information such as initial VSI/port number
* and switch ID it belongs to.
*
* NOTE: *req_desc is both an input/output parameter.
* The caller of this function first calls this function with *request_desc set
* to 0. If the response from f/w has *req_desc set to 0, all the switch
* configuration information has been returned; if non-zero (meaning not all
* the information was returned), the caller should call this function again
* with *req_desc set to the previous value returned by f/w to get the
* next block of switch configuration information.
*
* *num_elems is output only parameter. This reflects the number of elements
* in response buffer. The caller of this function to use *num_elems while
* parsing the response buffer.
*/
static enum ice_status
ice_aq_get_sw_cfg(struct ice_hw *hw, struct ice_aqc_get_sw_cfg_resp *buf,
u16 buf_size, u16 *req_desc, u16 *num_elems,
struct ice_sq_cd *cd)
{
struct ice_aqc_get_sw_cfg *cmd;
enum ice_status status;
struct ice_aq_desc desc;
ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_get_sw_cfg);
cmd = &desc.params.get_sw_conf;
cmd->element = cpu_to_le16(*req_desc);
status = ice_aq_send_cmd(hw, &desc, buf, buf_size, cd);
if (!status) {
*req_desc = le16_to_cpu(cmd->element);
*num_elems = le16_to_cpu(cmd->num_elems);
}
return status;
}
/**
* ice_aq_add_vsi
* @hw: pointer to the HW struct
* @vsi_ctx: pointer to a VSI context struct
* @cd: pointer to command details structure or NULL
*
* Add a VSI context to the hardware (0x0210)
*/
static enum ice_status
ice_aq_add_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
struct ice_sq_cd *cd)
{
struct ice_aqc_add_update_free_vsi_resp *res;
struct ice_aqc_add_get_update_free_vsi *cmd;
struct ice_aq_desc desc;
enum ice_status status;
cmd = &desc.params.vsi_cmd;
res = &desc.params.add_update_free_vsi_res;
ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_add_vsi);
if (!vsi_ctx->alloc_from_pool)
cmd->vsi_num = cpu_to_le16(vsi_ctx->vsi_num |
ICE_AQ_VSI_IS_VALID);
cmd->vf_id = vsi_ctx->vf_num;
cmd->vsi_flags = cpu_to_le16(vsi_ctx->flags);
desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
status = ice_aq_send_cmd(hw, &desc, &vsi_ctx->info,
sizeof(vsi_ctx->info), cd);
if (!status) {
vsi_ctx->vsi_num = le16_to_cpu(res->vsi_num) & ICE_AQ_VSI_NUM_M;
vsi_ctx->vsis_allocd = le16_to_cpu(res->vsi_used);
vsi_ctx->vsis_unallocated = le16_to_cpu(res->vsi_free);
}
return status;
}
/**
* ice_aq_free_vsi
* @hw: pointer to the HW struct
* @vsi_ctx: pointer to a VSI context struct
* @keep_vsi_alloc: keep VSI allocation as part of this PF's resources
* @cd: pointer to command details structure or NULL
*
* Free VSI context info from hardware (0x0213)
*/
static enum ice_status
ice_aq_free_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
bool keep_vsi_alloc, struct ice_sq_cd *cd)
{
struct ice_aqc_add_update_free_vsi_resp *resp;
struct ice_aqc_add_get_update_free_vsi *cmd;
struct ice_aq_desc desc;
enum ice_status status;
cmd = &desc.params.vsi_cmd;
resp = &desc.params.add_update_free_vsi_res;
ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_free_vsi);
cmd->vsi_num = cpu_to_le16(vsi_ctx->vsi_num | ICE_AQ_VSI_IS_VALID);
if (keep_vsi_alloc)
cmd->cmd_flags = cpu_to_le16(ICE_AQ_VSI_KEEP_ALLOC);
status = ice_aq_send_cmd(hw, &desc, NULL, 0, cd);
if (!status) {
vsi_ctx->vsis_allocd = le16_to_cpu(resp->vsi_used);
vsi_ctx->vsis_unallocated = le16_to_cpu(resp->vsi_free);
}
return status;
}
/**
* ice_aq_update_vsi
* @hw: pointer to the HW struct
* @vsi_ctx: pointer to a VSI context struct
* @cd: pointer to command details structure or NULL
*
* Update VSI context in the hardware (0x0211)
*/
static enum ice_status
ice_aq_update_vsi(struct ice_hw *hw, struct ice_vsi_ctx *vsi_ctx,
struct ice_sq_cd *cd)
{
struct ice_aqc_add_update_free_vsi_resp *resp;
struct ice_aqc_add_get_update_free_vsi *cmd;
struct ice_aq_desc desc;
enum ice_status status;
cmd = &desc.params.vsi_cmd;
resp = &desc.params.add_update_free_vsi_res;
ice_fill_dflt_direct_cmd_desc(&desc, ice_aqc_opc_update_vsi);
cmd->vsi_num = cpu_to_le16(vsi_ctx->vsi_num | ICE_AQ_VSI_IS_VALID);
desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
status = ice_aq_send_cmd(hw, &desc, &vsi_ctx->info,
sizeof(vsi_ctx->info), cd);
if (!status) {
vsi_ctx->vsis_allocd = le16_to_cpu(resp->vsi_used);
vsi_ctx->vsis_unallocated = le16_to_cpu(resp->vsi_free);
}
return status;
}
/**
* ice_is_vsi_valid - check whether the VSI is valid or not
* @hw: pointer to the HW struct
* @vsi_handle: VSI handle
*
* check whether the VSI is valid or not
*/
bool ice_is_vsi_valid(struct ice_hw *hw, u16 vsi_handle)
{
return vsi_handle < ICE_MAX_VSI && hw->vsi_ctx[vsi_handle];
}
/**
* ice_get_hw_vsi_num - return the HW VSI number
* @hw: pointer to the HW struct
* @vsi_handle: VSI handle
*
* return the HW VSI number
* Caution: call this function only if VSI is valid (ice_is_vsi_valid)
*/
u16 ice_get_hw_vsi_num(struct ice_hw *hw, u16 vsi_handle)
{
return hw->vsi_ctx[vsi_handle]->vsi_num;
}
/**
* ice_get_vsi_ctx - return the VSI context entry for a given VSI handle
* @hw: pointer to the HW struct
* @vsi_handle: VSI handle
*
* return the VSI context entry for a given VSI handle
*/
struct ice_vsi_ctx *ice_get_vsi_ctx(struct ice_hw *hw, u16 vsi_handle)
{
return (vsi_handle >= ICE_MAX_VSI) ? NULL : hw->vsi_ctx[vsi_handle];
}
/**
* ice_save_vsi_ctx - save the VSI context for a given VSI handle
* @hw: pointer to the HW struct
* @vsi_handle: VSI handle
* @vsi: VSI context pointer
*
* save the VSI context entry for a given VSI handle
*/
static void
ice_save_vsi_ctx(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi)
{
hw->vsi_ctx[vsi_handle] = vsi;
}
/**
* ice_clear_vsi_q_ctx - clear VSI queue contexts for all TCs
* @hw: pointer to the HW struct
* @vsi_handle: VSI handle
*/
static void ice_clear_vsi_q_ctx(struct ice_hw *hw, u16 vsi_handle)
{
struct ice_vsi_ctx *vsi;
u8 i;
vsi = ice_get_vsi_ctx(hw, vsi_handle);
if (!vsi)
return;
ice_for_each_traffic_class(i) {
if (vsi->lan_q_ctx[i]) {
devm_kfree(ice_hw_to_dev(hw), vsi->lan_q_ctx[i]);
vsi->lan_q_ctx[i] = NULL;
}
}
}
/**
* ice_clear_vsi_ctx - clear the VSI context entry
* @hw: pointer to the HW struct
* @vsi_handle: VSI handle
*
* clear the VSI context entry
*/
static void ice_clear_vsi_ctx(struct ice_hw *hw, u16 vsi_handle)
{
struct ice_vsi_ctx *vsi;
vsi = ice_get_vsi_ctx(hw, vsi_handle);
if (vsi) {
ice_clear_vsi_q_ctx(hw, vsi_handle);
devm_kfree(ice_hw_to_dev(hw), vsi);
hw->vsi_ctx[vsi_handle] = NULL;
}
}
/**
* ice_clear_all_vsi_ctx - clear all the VSI context entries
* @hw: pointer to the HW struct
*/
void ice_clear_all_vsi_ctx(struct ice_hw *hw)
{
u16 i;
for (i = 0; i < ICE_MAX_VSI; i++)
ice_clear_vsi_ctx(hw, i);
}
/**
* ice_add_vsi - add VSI context to the hardware and VSI handle list
* @hw: pointer to the HW struct
* @vsi_handle: unique VSI handle provided by drivers
* @vsi_ctx: pointer to a VSI context struct
* @cd: pointer to command details structure or NULL
*
* Add a VSI context to the hardware also add it into the VSI handle list.
* If this function gets called after reset for existing VSIs then update
* with the new HW VSI number in the corresponding VSI handle list entry.
*/
enum ice_status
ice_add_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
struct ice_sq_cd *cd)
{
struct ice_vsi_ctx *tmp_vsi_ctx;
enum ice_status status;
if (vsi_handle >= ICE_MAX_VSI)
return ICE_ERR_PARAM;
status = ice_aq_add_vsi(hw, vsi_ctx, cd);
if (status)
return status;
tmp_vsi_ctx = ice_get_vsi_ctx(hw, vsi_handle);
if (!tmp_vsi_ctx) {
/* Create a new VSI context */
tmp_vsi_ctx = devm_kzalloc(ice_hw_to_dev(hw),
sizeof(*tmp_vsi_ctx), GFP_KERNEL);
if (!tmp_vsi_ctx) {
ice_aq_free_vsi(hw, vsi_ctx, false, cd);
return ICE_ERR_NO_MEMORY;
}
*tmp_vsi_ctx = *vsi_ctx;
ice_save_vsi_ctx(hw, vsi_handle, tmp_vsi_ctx);
} else {
/* update with new HW VSI num */
if (tmp_vsi_ctx->vsi_num != vsi_ctx->vsi_num)
tmp_vsi_ctx->vsi_num = vsi_ctx->vsi_num;
}
return 0;
}
/**
* ice_free_vsi- free VSI context from hardware and VSI handle list
* @hw: pointer to the HW struct
* @vsi_handle: unique VSI handle
* @vsi_ctx: pointer to a VSI context struct
* @keep_vsi_alloc: keep VSI allocation as part of this PF's resources
* @cd: pointer to command details structure or NULL
*
* Free VSI context info from hardware as well as from VSI handle list
*/
enum ice_status
ice_free_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
bool keep_vsi_alloc, struct ice_sq_cd *cd)
{
enum ice_status status;
if (!ice_is_vsi_valid(hw, vsi_handle))
return ICE_ERR_PARAM;
vsi_ctx->vsi_num = ice_get_hw_vsi_num(hw, vsi_handle);
status = ice_aq_free_vsi(hw, vsi_ctx, keep_vsi_alloc, cd);
if (!status)
ice_clear_vsi_ctx(hw, vsi_handle);
return status;
}
/**
* ice_update_vsi
* @hw: pointer to the HW struct
* @vsi_handle: unique VSI handle
* @vsi_ctx: pointer to a VSI context struct
* @cd: pointer to command details structure or NULL
*
* Update VSI context in the hardware
*/
enum ice_status
ice_update_vsi(struct ice_hw *hw, u16 vsi_handle, struct ice_vsi_ctx *vsi_ctx,
struct ice_sq_cd *cd)
{
if (!ice_is_vsi_valid(hw, vsi_handle))
return ICE_ERR_PARAM;
vsi_ctx->vsi_num = ice_get_hw_vsi_num(hw, vsi_handle);
return ice_aq_update_vsi(hw, vsi_ctx, cd);
}
/**
* ice_aq_alloc_free_vsi_list
* @hw: pointer to the HW struct
* @vsi_list_id: VSI list ID returned or used for lookup
* @lkup_type: switch rule filter lookup type
* @opc: switch rules population command type - pass in the command opcode
*
* allocates or free a VSI list resource
*/
static enum ice_status
ice_aq_alloc_free_vsi_list(struct ice_hw *hw, u16 *vsi_list_id,
enum ice_sw_lkup_type lkup_type,
enum ice_adminq_opc opc)
{
struct ice_aqc_alloc_free_res_elem *sw_buf;
struct ice_aqc_res_elem *vsi_ele;
enum ice_status status;
u16 buf_len;
buf_len = sizeof(*sw_buf);
sw_buf = devm_kzalloc(ice_hw_to_dev(hw), buf_len, GFP_KERNEL);
if (!sw_buf)
return ICE_ERR_NO_MEMORY;
sw_buf->num_elems = cpu_to_le16(1);
if (lkup_type == ICE_SW_LKUP_MAC ||
lkup_type == ICE_SW_LKUP_MAC_VLAN ||
lkup_type == ICE_SW_LKUP_ETHERTYPE ||
lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC ||
lkup_type == ICE_SW_LKUP_PROMISC ||
lkup_type == ICE_SW_LKUP_PROMISC_VLAN) {
sw_buf->res_type = cpu_to_le16(ICE_AQC_RES_TYPE_VSI_LIST_REP);
} else if (lkup_type == ICE_SW_LKUP_VLAN) {
sw_buf->res_type =
cpu_to_le16(ICE_AQC_RES_TYPE_VSI_LIST_PRUNE);
} else {
status = ICE_ERR_PARAM;
goto ice_aq_alloc_free_vsi_list_exit;
}
if (opc == ice_aqc_opc_free_res)
sw_buf->elem[0].e.sw_resp = cpu_to_le16(*vsi_list_id);
status = ice_aq_alloc_free_res(hw, 1, sw_buf, buf_len, opc, NULL);
if (status)
goto ice_aq_alloc_free_vsi_list_exit;
if (opc == ice_aqc_opc_alloc_res) {
vsi_ele = &sw_buf->elem[0];
*vsi_list_id = le16_to_cpu(vsi_ele->e.sw_resp);
}
ice_aq_alloc_free_vsi_list_exit:
devm_kfree(ice_hw_to_dev(hw), sw_buf);
return status;
}
/**
* ice_aq_sw_rules - add/update/remove switch rules
* @hw: pointer to the HW struct
* @rule_list: pointer to switch rule population list
* @rule_list_sz: total size of the rule list in bytes
* @num_rules: number of switch rules in the rule_list
* @opc: switch rules population command type - pass in the command opcode
* @cd: pointer to command details structure or NULL
*
* Add(0x02a0)/Update(0x02a1)/Remove(0x02a2) switch rules commands to firmware
*/
static enum ice_status
ice_aq_sw_rules(struct ice_hw *hw, void *rule_list, u16 rule_list_sz,
u8 num_rules, enum ice_adminq_opc opc, struct ice_sq_cd *cd)
{
struct ice_aq_desc desc;
if (opc != ice_aqc_opc_add_sw_rules &&
opc != ice_aqc_opc_update_sw_rules &&
opc != ice_aqc_opc_remove_sw_rules)
return ICE_ERR_PARAM;
ice_fill_dflt_direct_cmd_desc(&desc, opc);
desc.flags |= cpu_to_le16(ICE_AQ_FLAG_RD);
desc.params.sw_rules.num_rules_fltr_entry_index =
cpu_to_le16(num_rules);
return ice_aq_send_cmd(hw, &desc, rule_list, rule_list_sz, cd);
}
/* ice_init_port_info - Initialize port_info with switch configuration data
* @pi: pointer to port_info
* @vsi_port_num: VSI number or port number
* @type: Type of switch element (port or VSI)
* @swid: switch ID of the switch the element is attached to
* @pf_vf_num: PF or VF number
* @is_vf: true if the element is a VF, false otherwise
*/
static void
ice_init_port_info(struct ice_port_info *pi, u16 vsi_port_num, u8 type,
u16 swid, u16 pf_vf_num, bool is_vf)
{
switch (type) {
case ICE_AQC_GET_SW_CONF_RESP_PHYS_PORT:
pi->lport = (u8)(vsi_port_num & ICE_LPORT_MASK);
pi->sw_id = swid;
pi->pf_vf_num = pf_vf_num;
pi->is_vf = is_vf;
pi->dflt_tx_vsi_num = ICE_DFLT_VSI_INVAL;
pi->dflt_rx_vsi_num = ICE_DFLT_VSI_INVAL;
break;
default:
ice_debug(pi->hw, ICE_DBG_SW,
"incorrect VSI/port type received\n");
break;
}
}
/* ice_get_initial_sw_cfg - Get initial port and default VSI data
* @hw: pointer to the hardware structure
*/
enum ice_status ice_get_initial_sw_cfg(struct ice_hw *hw)
{
struct ice_aqc_get_sw_cfg_resp *rbuf;
enum ice_status status;
u16 req_desc = 0;
u16 num_elems;
u16 i;
rbuf = devm_kzalloc(ice_hw_to_dev(hw), ICE_SW_CFG_MAX_BUF_LEN,
GFP_KERNEL);
if (!rbuf)
return ICE_ERR_NO_MEMORY;
/* Multiple calls to ice_aq_get_sw_cfg may be required
* to get all the switch configuration information. The need
* for additional calls is indicated by ice_aq_get_sw_cfg
* writing a non-zero value in req_desc
*/
do {
status = ice_aq_get_sw_cfg(hw, rbuf, ICE_SW_CFG_MAX_BUF_LEN,
&req_desc, &num_elems, NULL);
if (status)
break;
for (i = 0; i < num_elems; i++) {
struct ice_aqc_get_sw_cfg_resp_elem *ele;
u16 pf_vf_num, swid, vsi_port_num;
bool is_vf = false;
u8 type;
ele = rbuf[i].elements;
vsi_port_num = le16_to_cpu(ele->vsi_port_num) &
ICE_AQC_GET_SW_CONF_RESP_VSI_PORT_NUM_M;
pf_vf_num = le16_to_cpu(ele->pf_vf_num) &
ICE_AQC_GET_SW_CONF_RESP_FUNC_NUM_M;
swid = le16_to_cpu(ele->swid);
if (le16_to_cpu(ele->pf_vf_num) &
ICE_AQC_GET_SW_CONF_RESP_IS_VF)
is_vf = true;
type = le16_to_cpu(ele->vsi_port_num) >>
ICE_AQC_GET_SW_CONF_RESP_TYPE_S;
if (type == ICE_AQC_GET_SW_CONF_RESP_VSI) {
/* FW VSI is not needed. Just continue. */
continue;
}
ice_init_port_info(hw->port_info, vsi_port_num,
type, swid, pf_vf_num, is_vf);
}
} while (req_desc && !status);
devm_kfree(ice_hw_to_dev(hw), (void *)rbuf);
return status;
}
/**
* ice_fill_sw_info - Helper function to populate lb_en and lan_en
* @hw: pointer to the hardware structure
* @fi: filter info structure to fill/update
*
* This helper function populates the lb_en and lan_en elements of the provided
* ice_fltr_info struct using the switch's type and characteristics of the
* switch rule being configured.
*/
static void ice_fill_sw_info(struct ice_hw *hw, struct ice_fltr_info *fi)
{
fi->lb_en = false;
fi->lan_en = false;
if ((fi->flag & ICE_FLTR_TX) &&
(fi->fltr_act == ICE_FWD_TO_VSI ||
fi->fltr_act == ICE_FWD_TO_VSI_LIST ||
fi->fltr_act == ICE_FWD_TO_Q ||
fi->fltr_act == ICE_FWD_TO_QGRP)) {
/* Setting LB for prune actions will result in replicated
* packets to the internal switch that will be dropped.
*/
if (fi->lkup_type != ICE_SW_LKUP_VLAN)
fi->lb_en = true;
/* Set lan_en to TRUE if
* 1. The switch is a VEB AND
* 2
* 2.1 The lookup is a directional lookup like ethertype,
* promiscuous, ethertype-MAC, promiscuous-VLAN
* and default-port OR
* 2.2 The lookup is VLAN, OR
* 2.3 The lookup is MAC with mcast or bcast addr for MAC, OR
* 2.4 The lookup is MAC_VLAN with mcast or bcast addr for MAC.
*
* OR
*
* The switch is a VEPA.
*
* In all other cases, the LAN enable has to be set to false.
*/
if (hw->evb_veb) {
if (fi->lkup_type == ICE_SW_LKUP_ETHERTYPE ||
fi->lkup_type == ICE_SW_LKUP_PROMISC ||
fi->lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC ||
fi->lkup_type == ICE_SW_LKUP_PROMISC_VLAN ||
fi->lkup_type == ICE_SW_LKUP_DFLT ||
fi->lkup_type == ICE_SW_LKUP_VLAN ||
(fi->lkup_type == ICE_SW_LKUP_MAC &&
!is_unicast_ether_addr(fi->l_data.mac.mac_addr)) ||
(fi->lkup_type == ICE_SW_LKUP_MAC_VLAN &&
!is_unicast_ether_addr(fi->l_data.mac.mac_addr)))
fi->lan_en = true;
} else {
fi->lan_en = true;
}
}
}
/**
* ice_fill_sw_rule - Helper function to fill switch rule structure
* @hw: pointer to the hardware structure
* @f_info: entry containing packet forwarding information
* @s_rule: switch rule structure to be filled in based on mac_entry
* @opc: switch rules population command type - pass in the command opcode
*/
static void
ice_fill_sw_rule(struct ice_hw *hw, struct ice_fltr_info *f_info,
struct ice_aqc_sw_rules_elem *s_rule, enum ice_adminq_opc opc)
{
u16 vlan_id = ICE_MAX_VLAN_ID + 1;
void *daddr = NULL;
u16 eth_hdr_sz;
u8 *eth_hdr;
u32 act = 0;
__be16 *off;
u8 q_rgn;
if (opc == ice_aqc_opc_remove_sw_rules) {
s_rule->pdata.lkup_tx_rx.act = 0;
s_rule->pdata.lkup_tx_rx.index =
cpu_to_le16(f_info->fltr_rule_id);
s_rule->pdata.lkup_tx_rx.hdr_len = 0;
return;
}
eth_hdr_sz = sizeof(dummy_eth_header);
eth_hdr = s_rule->pdata.lkup_tx_rx.hdr;
/* initialize the ether header with a dummy header */
memcpy(eth_hdr, dummy_eth_header, eth_hdr_sz);
ice_fill_sw_info(hw, f_info);
switch (f_info->fltr_act) {
case ICE_FWD_TO_VSI:
act |= (f_info->fwd_id.hw_vsi_id << ICE_SINGLE_ACT_VSI_ID_S) &
ICE_SINGLE_ACT_VSI_ID_M;
if (f_info->lkup_type != ICE_SW_LKUP_VLAN)
act |= ICE_SINGLE_ACT_VSI_FORWARDING |
ICE_SINGLE_ACT_VALID_BIT;
break;
case ICE_FWD_TO_VSI_LIST:
act |= ICE_SINGLE_ACT_VSI_LIST;
act |= (f_info->fwd_id.vsi_list_id <<
ICE_SINGLE_ACT_VSI_LIST_ID_S) &
ICE_SINGLE_ACT_VSI_LIST_ID_M;
if (f_info->lkup_type != ICE_SW_LKUP_VLAN)
act |= ICE_SINGLE_ACT_VSI_FORWARDING |
ICE_SINGLE_ACT_VALID_BIT;
break;
case ICE_FWD_TO_Q:
act |= ICE_SINGLE_ACT_TO_Q;
act |= (f_info->fwd_id.q_id << ICE_SINGLE_ACT_Q_INDEX_S) &
ICE_SINGLE_ACT_Q_INDEX_M;
break;
case ICE_DROP_PACKET:
act |= ICE_SINGLE_ACT_VSI_FORWARDING | ICE_SINGLE_ACT_DROP |
ICE_SINGLE_ACT_VALID_BIT;
break;
case ICE_FWD_TO_QGRP:
q_rgn = f_info->qgrp_size > 0 ?
(u8)ilog2(f_info->qgrp_size) : 0;
act |= ICE_SINGLE_ACT_TO_Q;
act |= (f_info->fwd_id.q_id << ICE_SINGLE_ACT_Q_INDEX_S) &
ICE_SINGLE_ACT_Q_INDEX_M;
act |= (q_rgn << ICE_SINGLE_ACT_Q_REGION_S) &
ICE_SINGLE_ACT_Q_REGION_M;
break;
default:
return;
}
if (f_info->lb_en)
act |= ICE_SINGLE_ACT_LB_ENABLE;
if (f_info->lan_en)
act |= ICE_SINGLE_ACT_LAN_ENABLE;
switch (f_info->lkup_type) {
case ICE_SW_LKUP_MAC:
daddr = f_info->l_data.mac.mac_addr;
break;
case ICE_SW_LKUP_VLAN:
vlan_id = f_info->l_data.vlan.vlan_id;
if (f_info->fltr_act == ICE_FWD_TO_VSI ||
f_info->fltr_act == ICE_FWD_TO_VSI_LIST) {
act |= ICE_SINGLE_ACT_PRUNE;
act |= ICE_SINGLE_ACT_EGRESS | ICE_SINGLE_ACT_INGRESS;
}
break;
case ICE_SW_LKUP_ETHERTYPE_MAC:
daddr = f_info->l_data.ethertype_mac.mac_addr;
/* fall-through */
case ICE_SW_LKUP_ETHERTYPE:
off = (__be16 *)(eth_hdr + ICE_ETH_ETHTYPE_OFFSET);
*off = cpu_to_be16(f_info->l_data.ethertype_mac.ethertype);
break;
case ICE_SW_LKUP_MAC_VLAN:
daddr = f_info->l_data.mac_vlan.mac_addr;
vlan_id = f_info->l_data.mac_vlan.vlan_id;
break;
case ICE_SW_LKUP_PROMISC_VLAN:
vlan_id = f_info->l_data.mac_vlan.vlan_id;
/* fall-through */
case ICE_SW_LKUP_PROMISC:
daddr = f_info->l_data.mac_vlan.mac_addr;
break;
default:
break;
}
s_rule->type = (f_info->flag & ICE_FLTR_RX) ?
cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_RX) :
cpu_to_le16(ICE_AQC_SW_RULES_T_LKUP_TX);
/* Recipe set depending on lookup type */
s_rule->pdata.lkup_tx_rx.recipe_id = cpu_to_le16(f_info->lkup_type);
s_rule->pdata.lkup_tx_rx.src = cpu_to_le16(f_info->src);
s_rule->pdata.lkup_tx_rx.act = cpu_to_le32(act);
if (daddr)
ether_addr_copy(eth_hdr + ICE_ETH_DA_OFFSET, daddr);
if (!(vlan_id > ICE_MAX_VLAN_ID)) {
off = (__be16 *)(eth_hdr + ICE_ETH_VLAN_TCI_OFFSET);
*off = cpu_to_be16(vlan_id);
}
/* Create the switch rule with the final dummy Ethernet header */
if (opc != ice_aqc_opc_update_sw_rules)
s_rule->pdata.lkup_tx_rx.hdr_len = cpu_to_le16(eth_hdr_sz);
}
/**
* ice_add_marker_act
* @hw: pointer to the hardware structure
* @m_ent: the management entry for which sw marker needs to be added
* @sw_marker: sw marker to tag the Rx descriptor with
* @l_id: large action resource ID
*
* Create a large action to hold software marker and update the switch rule
* entry pointed by m_ent with newly created large action
*/
static enum ice_status
ice_add_marker_act(struct ice_hw *hw, struct ice_fltr_mgmt_list_entry *m_ent,
u16 sw_marker, u16 l_id)
{
struct ice_aqc_sw_rules_elem *lg_act, *rx_tx;
/* For software marker we need 3 large actions
* 1. FWD action: FWD TO VSI or VSI LIST
* 2. GENERIC VALUE action to hold the profile ID
* 3. GENERIC VALUE action to hold the software marker ID
*/
const u16 num_lg_acts = 3;
enum ice_status status;
u16 lg_act_size;
u16 rules_size;
u32 act;
u16 id;
if (m_ent->fltr_info.lkup_type != ICE_SW_LKUP_MAC)
return ICE_ERR_PARAM;
/* Create two back-to-back switch rules and submit them to the HW using
* one memory buffer:
* 1. Large Action
* 2. Look up Tx Rx
*/
lg_act_size = (u16)ICE_SW_RULE_LG_ACT_SIZE(num_lg_acts);
rules_size = lg_act_size + ICE_SW_RULE_RX_TX_ETH_HDR_SIZE;
lg_act = devm_kzalloc(ice_hw_to_dev(hw), rules_size, GFP_KERNEL);
if (!lg_act)
return ICE_ERR_NO_MEMORY;
rx_tx = (struct ice_aqc_sw_rules_elem *)((u8 *)lg_act + lg_act_size);
/* Fill in the first switch rule i.e. large action */
lg_act->type = cpu_to_le16(ICE_AQC_SW_RULES_T_LG_ACT);
lg_act->pdata.lg_act.index = cpu_to_le16(l_id);
lg_act->pdata.lg_act.size = cpu_to_le16(num_lg_acts);
/* First action VSI forwarding or VSI list forwarding depending on how
* many VSIs
*/
id = (m_ent->vsi_count > 1) ? m_ent->fltr_info.fwd_id.vsi_list_id :
m_ent->fltr_info.fwd_id.hw_vsi_id;
act = ICE_LG_ACT_VSI_FORWARDING | ICE_LG_ACT_VALID_BIT;
act |= (id << ICE_LG_ACT_VSI_LIST_ID_S) &
ICE_LG_ACT_VSI_LIST_ID_M;
if (m_ent->vsi_count > 1)
act |= ICE_LG_ACT_VSI_LIST;
lg_act->pdata.lg_act.act[0] = cpu_to_le32(act);
/* Second action descriptor type */
act = ICE_LG_ACT_GENERIC;
act |= (1 << ICE_LG_ACT_GENERIC_VALUE_S) & ICE_LG_ACT_GENERIC_VALUE_M;
lg_act->pdata.lg_act.act[1] = cpu_to_le32(act);
act = (ICE_LG_ACT_GENERIC_OFF_RX_DESC_PROF_IDX <<
ICE_LG_ACT_GENERIC_OFFSET_S) & ICE_LG_ACT_GENERIC_OFFSET_M;
/* Third action Marker value */
act |= ICE_LG_ACT_GENERIC;
act |= (sw_marker << ICE_LG_ACT_GENERIC_VALUE_S) &
ICE_LG_ACT_GENERIC_VALUE_M;
lg_act->pdata.lg_act.act[2] = cpu_to_le32(act);
/* call the fill switch rule to fill the lookup Tx Rx structure */
ice_fill_sw_rule(hw, &m_ent->fltr_info, rx_tx,
ice_aqc_opc_update_sw_rules);
/* Update the action to point to the large action ID */
rx_tx->pdata.lkup_tx_rx.act =
cpu_to_le32(ICE_SINGLE_ACT_PTR |
((l_id << ICE_SINGLE_ACT_PTR_VAL_S) &
ICE_SINGLE_ACT_PTR_VAL_M));
/* Use the filter rule ID of the previously created rule with single
* act. Once the update happens, hardware will treat this as large
* action
*/
rx_tx->pdata.lkup_tx_rx.index =
cpu_to_le16(m_ent->fltr_info.fltr_rule_id);
status = ice_aq_sw_rules(hw, lg_act, rules_size, 2,
ice_aqc_opc_update_sw_rules, NULL);
if (!status) {
m_ent->lg_act_idx = l_id;
m_ent->sw_marker_id = sw_marker;
}
devm_kfree(ice_hw_to_dev(hw), lg_act);
return status;
}
/**
* ice_create_vsi_list_map
* @hw: pointer to the hardware structure
* @vsi_handle_arr: array of VSI handles to set in the VSI mapping
* @num_vsi: number of VSI handles in the array
* @vsi_list_id: VSI list ID generated as part of allocate resource
*
* Helper function to create a new entry of VSI list ID to VSI mapping
* using the given VSI list ID
*/
static struct ice_vsi_list_map_info *
ice_create_vsi_list_map(struct ice_hw *hw, u16 *vsi_handle_arr, u16 num_vsi,
u16 vsi_list_id)
{
struct ice_switch_info *sw = hw->switch_info;
struct ice_vsi_list_map_info *v_map;
int i;
v_map = devm_kcalloc(ice_hw_to_dev(hw), 1, sizeof(*v_map), GFP_KERNEL);
if (!v_map)
return NULL;
v_map->vsi_list_id = vsi_list_id;
v_map->ref_cnt = 1;
for (i = 0; i < num_vsi; i++)
set_bit(vsi_handle_arr[i], v_map->vsi_map);
list_add(&v_map->list_entry, &sw->vsi_list_map_head);
return v_map;
}
/**
* ice_update_vsi_list_rule
* @hw: pointer to the hardware structure
* @vsi_handle_arr: array of VSI handles to form a VSI list
* @num_vsi: number of VSI handles in the array
* @vsi_list_id: VSI list ID generated as part of allocate resource
* @remove: Boolean value to indicate if this is a remove action
* @opc: switch rules population command type - pass in the command opcode
* @lkup_type: lookup type of the filter
*
* Call AQ command to add a new switch rule or update existing switch rule
* using the given VSI list ID
*/
static enum ice_status
ice_update_vsi_list_rule(struct ice_hw *hw, u16 *vsi_handle_arr, u16 num_vsi,
u16 vsi_list_id, bool remove, enum ice_adminq_opc opc,
enum ice_sw_lkup_type lkup_type)
{
struct ice_aqc_sw_rules_elem *s_rule;
enum ice_status status;
u16 s_rule_size;
u16 type;
int i;
if (!num_vsi)
return ICE_ERR_PARAM;
if (lkup_type == ICE_SW_LKUP_MAC ||
lkup_type == ICE_SW_LKUP_MAC_VLAN ||
lkup_type == ICE_SW_LKUP_ETHERTYPE ||
lkup_type == ICE_SW_LKUP_ETHERTYPE_MAC ||
lkup_type == ICE_SW_LKUP_PROMISC ||
lkup_type == ICE_SW_LKUP_PROMISC_VLAN)
type = remove ? ICE_AQC_SW_RULES_T_VSI_LIST_CLEAR :
ICE_AQC_SW_RULES_T_VSI_LIST_SET;
else if (lkup_type == ICE_SW_LKUP_VLAN)
type = remove ? ICE_AQC_SW_RULES_T_PRUNE_LIST_CLEAR :
ICE_AQC_SW_RULES_T_PRUNE_LIST_SET;
else
return ICE_ERR_PARAM;
s_rule_size = (u16)ICE_SW_RULE_VSI_LIST_SIZE(num_vsi);
s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL);
if (!s_rule)
return ICE_ERR_NO_MEMORY;
for (i = 0; i < num_vsi; i++) {
if (!ice_is_vsi_valid(hw, vsi_handle_arr[i])) {
status = ICE_ERR_PARAM;
goto exit;
}
/* AQ call requires hw_vsi_id(s) */
s_rule->pdata.vsi_list.vsi[i] =
cpu_to_le16(ice_get_hw_vsi_num(hw, vsi_handle_arr[i]));
}
s_rule->type = cpu_to_le16(type);
s_rule->pdata.vsi_list.number_vsi = cpu_to_le16(num_vsi);
s_rule->pdata.vsi_list.index = cpu_to_le16(vsi_list_id);
status = ice_aq_sw_rules(hw, s_rule, s_rule_size, 1, opc, NULL);
exit:
devm_kfree(ice_hw_to_dev(hw), s_rule);
return status;
}
/**
* ice_create_vsi_list_rule - Creates and populates a VSI list rule
* @hw: pointer to the HW struct
* @vsi_handle_arr: array of VSI handles to form a VSI list
* @num_vsi: number of VSI handles in the array
* @vsi_list_id: stores the ID of the VSI list to be created
* @lkup_type: switch rule filter's lookup type
*/
static enum ice_status
ice_create_vsi_list_rule(struct ice_hw *hw, u16 *vsi_handle_arr, u16 num_vsi,
u16 *vsi_list_id, enum ice_sw_lkup_type lkup_type)
{
enum ice_status status;
status = ice_aq_alloc_free_vsi_list(hw, vsi_list_id, lkup_type,
ice_aqc_opc_alloc_res);
if (status)
return status;
/* Update the newly created VSI list to include the specified VSIs */
return ice_update_vsi_list_rule(hw, vsi_handle_arr, num_vsi,
*vsi_list_id, false,
ice_aqc_opc_add_sw_rules, lkup_type);
}
/**
* ice_create_pkt_fwd_rule
* @hw: pointer to the hardware structure
* @f_entry: entry containing packet forwarding information
*
* Create switch rule with given filter information and add an entry
* to the corresponding filter management list to track this switch rule
* and VSI mapping
*/
static enum ice_status
ice_create_pkt_fwd_rule(struct ice_hw *hw,
struct ice_fltr_list_entry *f_entry)
{
struct ice_fltr_mgmt_list_entry *fm_entry;
struct ice_aqc_sw_rules_elem *s_rule;
enum ice_sw_lkup_type l_type;
struct ice_sw_recipe *recp;
enum ice_status status;
s_rule = devm_kzalloc(ice_hw_to_dev(hw),
ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, GFP_KERNEL);
if (!s_rule)
return ICE_ERR_NO_MEMORY;
fm_entry = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*fm_entry),
GFP_KERNEL);
if (!fm_entry) {
status = ICE_ERR_NO_MEMORY;
goto ice_create_pkt_fwd_rule_exit;
}
fm_entry->fltr_info = f_entry->fltr_info;
/* Initialize all the fields for the management entry */
fm_entry->vsi_count = 1;
fm_entry->lg_act_idx = ICE_INVAL_LG_ACT_INDEX;
fm_entry->sw_marker_id = ICE_INVAL_SW_MARKER_ID;
fm_entry->counter_index = ICE_INVAL_COUNTER_ID;
ice_fill_sw_rule(hw, &fm_entry->fltr_info, s_rule,
ice_aqc_opc_add_sw_rules);
status = ice_aq_sw_rules(hw, s_rule, ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, 1,
ice_aqc_opc_add_sw_rules, NULL);
if (status) {
devm_kfree(ice_hw_to_dev(hw), fm_entry);
goto ice_create_pkt_fwd_rule_exit;
}
f_entry->fltr_info.fltr_rule_id =
le16_to_cpu(s_rule->pdata.lkup_tx_rx.index);
fm_entry->fltr_info.fltr_rule_id =
le16_to_cpu(s_rule->pdata.lkup_tx_rx.index);
/* The book keeping entries will get removed when base driver
* calls remove filter AQ command
*/
l_type = fm_entry->fltr_info.lkup_type;
recp = &hw->switch_info->recp_list[l_type];
list_add(&fm_entry->list_entry, &recp->filt_rules);
ice_create_pkt_fwd_rule_exit:
devm_kfree(ice_hw_to_dev(hw), s_rule);
return status;
}
/**
* ice_update_pkt_fwd_rule
* @hw: pointer to the hardware structure
* @f_info: filter information for switch rule
*
* Call AQ command to update a previously created switch rule with a
* VSI list ID
*/
static enum ice_status
ice_update_pkt_fwd_rule(struct ice_hw *hw, struct ice_fltr_info *f_info)
{
struct ice_aqc_sw_rules_elem *s_rule;
enum ice_status status;
s_rule = devm_kzalloc(ice_hw_to_dev(hw),
ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, GFP_KERNEL);
if (!s_rule)
return ICE_ERR_NO_MEMORY;
ice_fill_sw_rule(hw, f_info, s_rule, ice_aqc_opc_update_sw_rules);
s_rule->pdata.lkup_tx_rx.index = cpu_to_le16(f_info->fltr_rule_id);
/* Update switch rule with new rule set to forward VSI list */
status = ice_aq_sw_rules(hw, s_rule, ICE_SW_RULE_RX_TX_ETH_HDR_SIZE, 1,
ice_aqc_opc_update_sw_rules, NULL);
devm_kfree(ice_hw_to_dev(hw), s_rule);
return status;
}
/**
* ice_update_sw_rule_bridge_mode
* @hw: pointer to the HW struct
*
* Updates unicast switch filter rules based on VEB/VEPA mode
*/
enum ice_status ice_update_sw_rule_bridge_mode(struct ice_hw *hw)
{
struct ice_switch_info *sw = hw->switch_info;
struct ice_fltr_mgmt_list_entry *fm_entry;
enum ice_status status = 0;
struct list_head *rule_head;
struct mutex *rule_lock; /* Lock to protect filter rule list */
rule_lock = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock;
rule_head = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rules;
mutex_lock(rule_lock);
list_for_each_entry(fm_entry, rule_head, list_entry) {
struct ice_fltr_info *fi = &fm_entry->fltr_info;
u8 *addr = fi->l_data.mac.mac_addr;
/* Update unicast Tx rules to reflect the selected
* VEB/VEPA mode
*/
if ((fi->flag & ICE_FLTR_TX) && is_unicast_ether_addr(addr) &&
(fi->fltr_act == ICE_FWD_TO_VSI ||
fi->fltr_act == ICE_FWD_TO_VSI_LIST ||
fi->fltr_act == ICE_FWD_TO_Q ||
fi->fltr_act == ICE_FWD_TO_QGRP)) {
status = ice_update_pkt_fwd_rule(hw, fi);
if (status)
break;
}
}
mutex_unlock(rule_lock);
return status;
}
/**
* ice_add_update_vsi_list
* @hw: pointer to the hardware structure
* @m_entry: pointer to current filter management list entry
* @cur_fltr: filter information from the book keeping entry
* @new_fltr: filter information with the new VSI to be added
*
* Call AQ command to add or update previously created VSI list with new VSI.
*
* Helper function to do book keeping associated with adding filter information
* The algorithm to do the book keeping is described below :
* When a VSI needs to subscribe to a given filter (MAC/VLAN/Ethtype etc.)
* if only one VSI has been added till now
* Allocate a new VSI list and add two VSIs
* to this list using switch rule command
* Update the previously created switch rule with the
* newly created VSI list ID
* if a VSI list was previously created
* Add the new VSI to the previously created VSI list set
* using the update switch rule command
*/
static enum ice_status
ice_add_update_vsi_list(struct ice_hw *hw,
struct ice_fltr_mgmt_list_entry *m_entry,
struct ice_fltr_info *cur_fltr,
struct ice_fltr_info *new_fltr)
{
enum ice_status status = 0;
u16 vsi_list_id = 0;
if ((cur_fltr->fltr_act == ICE_FWD_TO_Q ||
cur_fltr->fltr_act == ICE_FWD_TO_QGRP))
return ICE_ERR_NOT_IMPL;
if ((new_fltr->fltr_act == ICE_FWD_TO_Q ||
new_fltr->fltr_act == ICE_FWD_TO_QGRP) &&
(cur_fltr->fltr_act == ICE_FWD_TO_VSI ||
cur_fltr->fltr_act == ICE_FWD_TO_VSI_LIST))
return ICE_ERR_NOT_IMPL;
if (m_entry->vsi_count < 2 && !m_entry->vsi_list_info) {
/* Only one entry existed in the mapping and it was not already
* a part of a VSI list. So, create a VSI list with the old and
* new VSIs.
*/
struct ice_fltr_info tmp_fltr;
u16 vsi_handle_arr[2];
/* A rule already exists with the new VSI being added */
if (cur_fltr->fwd_id.hw_vsi_id == new_fltr->fwd_id.hw_vsi_id)
return ICE_ERR_ALREADY_EXISTS;
vsi_handle_arr[0] = cur_fltr->vsi_handle;
vsi_handle_arr[1] = new_fltr->vsi_handle;
status = ice_create_vsi_list_rule(hw, &vsi_handle_arr[0], 2,
&vsi_list_id,
new_fltr->lkup_type);
if (status)
return status;
tmp_fltr = *new_fltr;
tmp_fltr.fltr_rule_id = cur_fltr->fltr_rule_id;
tmp_fltr.fltr_act = ICE_FWD_TO_VSI_LIST;
tmp_fltr.fwd_id.vsi_list_id = vsi_list_id;
/* Update the previous switch rule of "MAC forward to VSI" to
* "MAC fwd to VSI list"
*/
status = ice_update_pkt_fwd_rule(hw, &tmp_fltr);
if (status)
return status;
cur_fltr->fwd_id.vsi_list_id = vsi_list_id;
cur_fltr->fltr_act = ICE_FWD_TO_VSI_LIST;
m_entry->vsi_list_info =
ice_create_vsi_list_map(hw, &vsi_handle_arr[0], 2,
vsi_list_id);
/* If this entry was large action then the large action needs
* to be updated to point to FWD to VSI list
*/
if (m_entry->sw_marker_id != ICE_INVAL_SW_MARKER_ID)
status =
ice_add_marker_act(hw, m_entry,
m_entry->sw_marker_id,
m_entry->lg_act_idx);
} else {
u16 vsi_handle = new_fltr->vsi_handle;
enum ice_adminq_opc opcode;
if (!m_entry->vsi_list_info)
return ICE_ERR_CFG;
/* A rule already exists with the new VSI being added */
if (test_bit(vsi_handle, m_entry->vsi_list_info->vsi_map))
return 0;
/* Update the previously created VSI list set with
* the new VSI ID passed in
*/
vsi_list_id = cur_fltr->fwd_id.vsi_list_id;
opcode = ice_aqc_opc_update_sw_rules;
status = ice_update_vsi_list_rule(hw, &vsi_handle, 1,
vsi_list_id, false, opcode,
new_fltr->lkup_type);
/* update VSI list mapping info with new VSI ID */
if (!status)
set_bit(vsi_handle, m_entry->vsi_list_info->vsi_map);
}
if (!status)
m_entry->vsi_count++;
return status;
}
/**
* ice_find_rule_entry - Search a rule entry
* @hw: pointer to the hardware structure
* @recp_id: lookup type for which the specified rule needs to be searched
* @f_info: rule information
*
* Helper function to search for a given rule entry
* Returns pointer to entry storing the rule if found
*/
static struct ice_fltr_mgmt_list_entry *
ice_find_rule_entry(struct ice_hw *hw, u8 recp_id, struct ice_fltr_info *f_info)
{
struct ice_fltr_mgmt_list_entry *list_itr, *ret = NULL;
struct ice_switch_info *sw = hw->switch_info;
struct list_head *list_head;
list_head = &sw->recp_list[recp_id].filt_rules;
list_for_each_entry(list_itr, list_head, list_entry) {
if (!memcmp(&f_info->l_data, &list_itr->fltr_info.l_data,
sizeof(f_info->l_data)) &&
f_info->flag == list_itr->fltr_info.flag) {
ret = list_itr;
break;
}
}
return ret;
}
/**
* ice_find_vsi_list_entry - Search VSI list map with VSI count 1
* @hw: pointer to the hardware structure
* @recp_id: lookup type for which VSI lists needs to be searched
* @vsi_handle: VSI handle to be found in VSI list
* @vsi_list_id: VSI list ID found containing vsi_handle
*
* Helper function to search a VSI list with single entry containing given VSI
* handle element. This can be extended further to search VSI list with more
* than 1 vsi_count. Returns pointer to VSI list entry if found.
*/
static struct ice_vsi_list_map_info *
ice_find_vsi_list_entry(struct ice_hw *hw, u8 recp_id, u16 vsi_handle,
u16 *vsi_list_id)
{
struct ice_vsi_list_map_info *map_info = NULL;
struct ice_switch_info *sw = hw->switch_info;
struct ice_fltr_mgmt_list_entry *list_itr;
struct list_head *list_head;
list_head = &sw->recp_list[recp_id].filt_rules;
list_for_each_entry(list_itr, list_head, list_entry) {
if (list_itr->vsi_count == 1 && list_itr->vsi_list_info) {
map_info = list_itr->vsi_list_info;
if (test_bit(vsi_handle, map_info->vsi_map)) {
*vsi_list_id = map_info->vsi_list_id;
return map_info;
}
}
}
return NULL;
}
/**
* ice_add_rule_internal - add rule for a given lookup type
* @hw: pointer to the hardware structure
* @recp_id: lookup type (recipe ID) for which rule has to be added
* @f_entry: structure containing MAC forwarding information
*
* Adds or updates the rule lists for a given recipe
*/
static enum ice_status
ice_add_rule_internal(struct ice_hw *hw, u8 recp_id,
struct ice_fltr_list_entry *f_entry)
{
struct ice_switch_info *sw = hw->switch_info;
struct ice_fltr_info *new_fltr, *cur_fltr;
struct ice_fltr_mgmt_list_entry *m_entry;
struct mutex *rule_lock; /* Lock to protect filter rule list */
enum ice_status status = 0;
if (!ice_is_vsi_valid(hw, f_entry->fltr_info.vsi_handle))
return ICE_ERR_PARAM;
f_entry->fltr_info.fwd_id.hw_vsi_id =
ice_get_hw_vsi_num(hw, f_entry->fltr_info.vsi_handle);
rule_lock = &sw->recp_list[recp_id].filt_rule_lock;
mutex_lock(rule_lock);
new_fltr = &f_entry->fltr_info;
if (new_fltr->flag & ICE_FLTR_RX)
new_fltr->src = hw->port_info->lport;
else if (new_fltr->flag & ICE_FLTR_TX)
new_fltr->src = f_entry->fltr_info.fwd_id.hw_vsi_id;
m_entry = ice_find_rule_entry(hw, recp_id, new_fltr);
if (!m_entry) {
mutex_unlock(rule_lock);
return ice_create_pkt_fwd_rule(hw, f_entry);
}
cur_fltr = &m_entry->fltr_info;
status = ice_add_update_vsi_list(hw, m_entry, cur_fltr, new_fltr);
mutex_unlock(rule_lock);
return status;
}
/**
* ice_remove_vsi_list_rule
* @hw: pointer to the hardware structure
* @vsi_list_id: VSI list ID generated as part of allocate resource
* @lkup_type: switch rule filter lookup type
*
* The VSI list should be emptied before this function is called to remove the
* VSI list.
*/
static enum ice_status
ice_remove_vsi_list_rule(struct ice_hw *hw, u16 vsi_list_id,
enum ice_sw_lkup_type lkup_type)
{
struct ice_aqc_sw_rules_elem *s_rule;
enum ice_status status;
u16 s_rule_size;
s_rule_size = (u16)ICE_SW_RULE_VSI_LIST_SIZE(0);
s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL);
if (!s_rule)
return ICE_ERR_NO_MEMORY;
s_rule->type = cpu_to_le16(ICE_AQC_SW_RULES_T_VSI_LIST_CLEAR);
s_rule->pdata.vsi_list.index = cpu_to_le16(vsi_list_id);
/* Free the vsi_list resource that we allocated. It is assumed that the
* list is empty at this point.
*/
status = ice_aq_alloc_free_vsi_list(hw, &vsi_list_id, lkup_type,
ice_aqc_opc_free_res);
devm_kfree(ice_hw_to_dev(hw), s_rule);
return status;
}
/**
* ice_rem_update_vsi_list
* @hw: pointer to the hardware structure
* @vsi_handle: VSI handle of the VSI to remove
* @fm_list: filter management entry for which the VSI list management needs to
* be done
*/
static enum ice_status
ice_rem_update_vsi_list(struct ice_hw *hw, u16 vsi_handle,
struct ice_fltr_mgmt_list_entry *fm_list)
{
enum ice_sw_lkup_type lkup_type;
enum ice_status status = 0;
u16 vsi_list_id;
if (fm_list->fltr_info.fltr_act != ICE_FWD_TO_VSI_LIST ||
fm_list->vsi_count == 0)
return ICE_ERR_PARAM;
/* A rule with the VSI being removed does not exist */
if (!test_bit(vsi_handle, fm_list->vsi_list_info->vsi_map))
return ICE_ERR_DOES_NOT_EXIST;
lkup_type = fm_list->fltr_info.lkup_type;
vsi_list_id = fm_list->fltr_info.fwd_id.vsi_list_id;
status = ice_update_vsi_list_rule(hw, &vsi_handle, 1, vsi_list_id, true,
ice_aqc_opc_update_sw_rules,
lkup_type);
if (status)
return status;
fm_list->vsi_count--;
clear_bit(vsi_handle, fm_list->vsi_list_info->vsi_map);
if (fm_list->vsi_count == 1 && lkup_type != ICE_SW_LKUP_VLAN) {
struct ice_fltr_info tmp_fltr_info = fm_list->fltr_info;
struct ice_vsi_list_map_info *vsi_list_info =
fm_list->vsi_list_info;
u16 rem_vsi_handle;
rem_vsi_handle = find_first_bit(vsi_list_info->vsi_map,
ICE_MAX_VSI);
if (!ice_is_vsi_valid(hw, rem_vsi_handle))
return ICE_ERR_OUT_OF_RANGE;
/* Make sure VSI list is empty before removing it below */
status = ice_update_vsi_list_rule(hw, &rem_vsi_handle, 1,
vsi_list_id, true,
ice_aqc_opc_update_sw_rules,
lkup_type);
if (status)
return status;
tmp_fltr_info.fltr_act = ICE_FWD_TO_VSI;
tmp_fltr_info.fwd_id.hw_vsi_id =
ice_get_hw_vsi_num(hw, rem_vsi_handle);
tmp_fltr_info.vsi_handle = rem_vsi_handle;
status = ice_update_pkt_fwd_rule(hw, &tmp_fltr_info);
if (status) {
ice_debug(hw, ICE_DBG_SW,
"Failed to update pkt fwd rule to FWD_TO_VSI on HW VSI %d, error %d\n",
tmp_fltr_info.fwd_id.hw_vsi_id, status);
return status;
}
fm_list->fltr_info = tmp_fltr_info;
}
if ((fm_list->vsi_count == 1 && lkup_type != ICE_SW_LKUP_VLAN) ||
(fm_list->vsi_count == 0 && lkup_type == ICE_SW_LKUP_VLAN)) {
struct ice_vsi_list_map_info *vsi_list_info =
fm_list->vsi_list_info;
/* Remove the VSI list since it is no longer used */
status = ice_remove_vsi_list_rule(hw, vsi_list_id, lkup_type);
if (status) {
ice_debug(hw, ICE_DBG_SW,
"Failed to remove VSI list %d, error %d\n",
vsi_list_id, status);
return status;
}
list_del(&vsi_list_info->list_entry);
devm_kfree(ice_hw_to_dev(hw), vsi_list_info);
fm_list->vsi_list_info = NULL;
}
return status;
}
/**
* ice_remove_rule_internal - Remove a filter rule of a given type
* @hw: pointer to the hardware structure
* @recp_id: recipe ID for which the rule needs to removed
* @f_entry: rule entry containing filter information
*/
static enum ice_status
ice_remove_rule_internal(struct ice_hw *hw, u8 recp_id,
struct ice_fltr_list_entry *f_entry)
{
struct ice_switch_info *sw = hw->switch_info;
struct ice_fltr_mgmt_list_entry *list_elem;
struct mutex *rule_lock; /* Lock to protect filter rule list */
enum ice_status status = 0;
bool remove_rule = false;
u16 vsi_handle;
if (!ice_is_vsi_valid(hw, f_entry->fltr_info.vsi_handle))
return ICE_ERR_PARAM;
f_entry->fltr_info.fwd_id.hw_vsi_id =
ice_get_hw_vsi_num(hw, f_entry->fltr_info.vsi_handle);
rule_lock = &sw->recp_list[recp_id].filt_rule_lock;
mutex_lock(rule_lock);
list_elem = ice_find_rule_entry(hw, recp_id, &f_entry->fltr_info);
if (!list_elem) {
status = ICE_ERR_DOES_NOT_EXIST;
goto exit;
}
if (list_elem->fltr_info.fltr_act != ICE_FWD_TO_VSI_LIST) {
remove_rule = true;
} else if (!list_elem->vsi_list_info) {
status = ICE_ERR_DOES_NOT_EXIST;
goto exit;
} else if (list_elem->vsi_list_info->ref_cnt > 1) {
/* a ref_cnt > 1 indicates that the vsi_list is being
* shared by multiple rules. Decrement the ref_cnt and
* remove this rule, but do not modify the list, as it
* is in-use by other rules.
*/
list_elem->vsi_list_info->ref_cnt--;
remove_rule = true;
} else {
/* a ref_cnt of 1 indicates the vsi_list is only used
* by one rule. However, the original removal request is only
* for a single VSI. Update the vsi_list first, and only
* remove the rule if there are no further VSIs in this list.
*/
vsi_handle = f_entry->fltr_info.vsi_handle;
status = ice_rem_update_vsi_list(hw, vsi_handle, list_elem);
if (status)
goto exit;
/* if VSI count goes to zero after updating the VSI list */
if (list_elem->vsi_count == 0)
remove_rule = true;
}
if (remove_rule) {
/* Remove the lookup rule */
struct ice_aqc_sw_rules_elem *s_rule;
s_rule = devm_kzalloc(ice_hw_to_dev(hw),
ICE_SW_RULE_RX_TX_NO_HDR_SIZE,
GFP_KERNEL);
if (!s_rule) {
status = ICE_ERR_NO_MEMORY;
goto exit;
}
ice_fill_sw_rule(hw, &list_elem->fltr_info, s_rule,
ice_aqc_opc_remove_sw_rules);
status = ice_aq_sw_rules(hw, s_rule,
ICE_SW_RULE_RX_TX_NO_HDR_SIZE, 1,
ice_aqc_opc_remove_sw_rules, NULL);
if (status)
goto exit;
/* Remove a book keeping from the list */
devm_kfree(ice_hw_to_dev(hw), s_rule);
list_del(&list_elem->list_entry);
devm_kfree(ice_hw_to_dev(hw), list_elem);
}
exit:
mutex_unlock(rule_lock);
return status;
}
/**
* ice_add_mac - Add a MAC address based filter rule
* @hw: pointer to the hardware structure
* @m_list: list of MAC addresses and forwarding information
*
* IMPORTANT: When the ucast_shared flag is set to false and m_list has
* multiple unicast addresses, the function assumes that all the
* addresses are unique in a given add_mac call. It doesn't
* check for duplicates in this case, removing duplicates from a given
* list should be taken care of in the caller of this function.
*/
enum ice_status
ice_add_mac(struct ice_hw *hw, struct list_head *m_list)
{
struct ice_aqc_sw_rules_elem *s_rule, *r_iter;
struct ice_fltr_list_entry *m_list_itr;
struct list_head *rule_head;
u16 elem_sent, total_elem_left;
struct ice_switch_info *sw;
struct mutex *rule_lock; /* Lock to protect filter rule list */
enum ice_status status = 0;
u16 num_unicast = 0;
u16 s_rule_size;
if (!m_list || !hw)
return ICE_ERR_PARAM;
s_rule = NULL;
sw = hw->switch_info;
rule_lock = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rule_lock;
list_for_each_entry(m_list_itr, m_list, list_entry) {
u8 *add = &m_list_itr->fltr_info.l_data.mac.mac_addr[0];
u16 vsi_handle;
u16 hw_vsi_id;
m_list_itr->fltr_info.flag = ICE_FLTR_TX;
vsi_handle = m_list_itr->fltr_info.vsi_handle;
if (!ice_is_vsi_valid(hw, vsi_handle))
return ICE_ERR_PARAM;
hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle);
m_list_itr->fltr_info.fwd_id.hw_vsi_id = hw_vsi_id;
/* update the src in case it is VSI num */
if (m_list_itr->fltr_info.src_id != ICE_SRC_ID_VSI)
return ICE_ERR_PARAM;
m_list_itr->fltr_info.src = hw_vsi_id;
if (m_list_itr->fltr_info.lkup_type != ICE_SW_LKUP_MAC ||
is_zero_ether_addr(add))
return ICE_ERR_PARAM;
if (is_unicast_ether_addr(add) && !hw->ucast_shared) {
/* Don't overwrite the unicast address */
mutex_lock(rule_lock);
if (ice_find_rule_entry(hw, ICE_SW_LKUP_MAC,
&m_list_itr->fltr_info)) {
mutex_unlock(rule_lock);
return ICE_ERR_ALREADY_EXISTS;
}
mutex_unlock(rule_lock);
num_unicast++;
} else if (is_multicast_ether_addr(add) ||
(is_unicast_ether_addr(add) && hw->ucast_shared)) {
m_list_itr->status =
ice_add_rule_internal(hw, ICE_SW_LKUP_MAC,
m_list_itr);
if (m_list_itr->status)
return m_list_itr->status;
}
}
mutex_lock(rule_lock);
/* Exit if no suitable entries were found for adding bulk switch rule */
if (!num_unicast) {
status = 0;
goto ice_add_mac_exit;
}
rule_head = &sw->recp_list[ICE_SW_LKUP_MAC].filt_rules;
/* Allocate switch rule buffer for the bulk update for unicast */
s_rule_size = ICE_SW_RULE_RX_TX_ETH_HDR_SIZE;
s_rule = devm_kcalloc(ice_hw_to_dev(hw), num_unicast, s_rule_size,
GFP_KERNEL);
if (!s_rule) {
status = ICE_ERR_NO_MEMORY;
goto ice_add_mac_exit;
}
r_iter = s_rule;
list_for_each_entry(m_list_itr, m_list, list_entry) {
struct ice_fltr_info *f_info = &m_list_itr->fltr_info;
u8 *mac_addr = &f_info->l_data.mac.mac_addr[0];
if (is_unicast_ether_addr(mac_addr)) {
ice_fill_sw_rule(hw, &m_list_itr->fltr_info, r_iter,
ice_aqc_opc_add_sw_rules);
r_iter = (struct ice_aqc_sw_rules_elem *)
((u8 *)r_iter + s_rule_size);
}
}
/* Call AQ bulk switch rule update for all unicast addresses */
r_iter = s_rule;
/* Call AQ switch rule in AQ_MAX chunk */
for (total_elem_left = num_unicast; total_elem_left > 0;
total_elem_left -= elem_sent) {
struct ice_aqc_sw_rules_elem *entry = r_iter;
elem_sent = min(total_elem_left,
(u16)(ICE_AQ_MAX_BUF_LEN / s_rule_size));
status = ice_aq_sw_rules(hw, entry, elem_sent * s_rule_size,
elem_sent, ice_aqc_opc_add_sw_rules,
NULL);
if (status)
goto ice_add_mac_exit;
r_iter = (struct ice_aqc_sw_rules_elem *)
((u8 *)r_iter + (elem_sent * s_rule_size));
}
/* Fill up rule ID based on the value returned from FW */
r_iter = s_rule;
list_for_each_entry(m_list_itr, m_list, list_entry) {
struct ice_fltr_info *f_info = &m_list_itr->fltr_info;
u8 *mac_addr = &f_info->l_data.mac.mac_addr[0];
struct ice_fltr_mgmt_list_entry *fm_entry;
if (is_unicast_ether_addr(mac_addr)) {
f_info->fltr_rule_id =
le16_to_cpu(r_iter->pdata.lkup_tx_rx.index);
f_info->fltr_act = ICE_FWD_TO_VSI;
/* Create an entry to track this MAC address */
fm_entry = devm_kzalloc(ice_hw_to_dev(hw),
sizeof(*fm_entry), GFP_KERNEL);
if (!fm_entry) {
status = ICE_ERR_NO_MEMORY;
goto ice_add_mac_exit;
}
fm_entry->fltr_info = *f_info;
fm_entry->vsi_count = 1;
/* The book keeping entries will get removed when
* base driver calls remove filter AQ command
*/
list_add(&fm_entry->list_entry, rule_head);
r_iter = (struct ice_aqc_sw_rules_elem *)
((u8 *)r_iter + s_rule_size);
}
}
ice_add_mac_exit:
mutex_unlock(rule_lock);
if (s_rule)
devm_kfree(ice_hw_to_dev(hw), s_rule);
return status;
}
/**
* ice_add_vlan_internal - Add one VLAN based filter rule
* @hw: pointer to the hardware structure
* @f_entry: filter entry containing one VLAN information
*/
static enum ice_status
ice_add_vlan_internal(struct ice_hw *hw, struct ice_fltr_list_entry *f_entry)
{
struct ice_switch_info *sw = hw->switch_info;
struct ice_fltr_mgmt_list_entry *v_list_itr;
struct ice_fltr_info *new_fltr, *cur_fltr;
enum ice_sw_lkup_type lkup_type;
u16 vsi_list_id = 0, vsi_handle;
struct mutex *rule_lock; /* Lock to protect filter rule list */
enum ice_status status = 0;
if (!ice_is_vsi_valid(hw, f_entry->fltr_info.vsi_handle))
return ICE_ERR_PARAM;
f_entry->fltr_info.fwd_id.hw_vsi_id =
ice_get_hw_vsi_num(hw, f_entry->fltr_info.vsi_handle);
new_fltr = &f_entry->fltr_info;
/* VLAN ID should only be 12 bits */
if (new_fltr->l_data.vlan.vlan_id > ICE_MAX_VLAN_ID)
return ICE_ERR_PARAM;
if (new_fltr->src_id != ICE_SRC_ID_VSI)
return ICE_ERR_PARAM;
new_fltr->src = new_fltr->fwd_id.hw_vsi_id;
lkup_type = new_fltr->lkup_type;
vsi_handle = new_fltr->vsi_handle;
rule_lock = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rule_lock;
mutex_lock(rule_lock);
v_list_itr = ice_find_rule_entry(hw, ICE_SW_LKUP_VLAN, new_fltr);
if (!v_list_itr) {
struct ice_vsi_list_map_info *map_info = NULL;
if (new_fltr->fltr_act == ICE_FWD_TO_VSI) {
/* All VLAN pruning rules use a VSI list. Check if
* there is already a VSI list containing VSI that we
* want to add. If found, use the same vsi_list_id for
* this new VLAN rule or else create a new list.
*/
map_info = ice_find_vsi_list_entry(hw, ICE_SW_LKUP_VLAN,
vsi_handle,
&vsi_list_id);
if (!map_info) {
status = ice_create_vsi_list_rule(hw,
&vsi_handle,
1,
&vsi_list_id,
lkup_type);
if (status)
goto exit;
}
/* Convert the action to forwarding to a VSI list. */
new_fltr->fltr_act = ICE_FWD_TO_VSI_LIST;
new_fltr->fwd_id.vsi_list_id = vsi_list_id;
}
status = ice_create_pkt_fwd_rule(hw, f_entry);
if (!status) {
v_list_itr = ice_find_rule_entry(hw, ICE_SW_LKUP_VLAN,
new_fltr);
if (!v_list_itr) {
status = ICE_ERR_DOES_NOT_EXIST;
goto exit;
}
/* reuse VSI list for new rule and increment ref_cnt */
if (map_info) {
v_list_itr->vsi_list_info = map_info;
map_info->ref_cnt++;
} else {
v_list_itr->vsi_list_info =
ice_create_vsi_list_map(hw, &vsi_handle,
1, vsi_list_id);
}
}
} else if (v_list_itr->vsi_list_info->ref_cnt == 1) {
/* Update existing VSI list to add new VSI ID only if it used
* by one VLAN rule.
*/
cur_fltr = &v_list_itr->fltr_info;
status = ice_add_update_vsi_list(hw, v_list_itr, cur_fltr,
new_fltr);
} else {
/* If VLAN rule exists and VSI list being used by this rule is
* referenced by more than 1 VLAN rule. Then create a new VSI
* list appending previous VSI with new VSI and update existing
* VLAN rule to point to new VSI list ID
*/
struct ice_fltr_info tmp_fltr;
u16 vsi_handle_arr[2];
u16 cur_handle;
/* Current implementation only supports reusing VSI list with
* one VSI count. We should never hit below condition
*/
if (v_list_itr->vsi_count > 1 &&
v_list_itr->vsi_list_info->ref_cnt > 1) {
ice_debug(hw, ICE_DBG_SW,
"Invalid configuration: Optimization to reuse VSI list with more than one VSI is not being done yet\n");
status = ICE_ERR_CFG;
goto exit;
}
cur_handle =
find_first_bit(v_list_itr->vsi_list_info->vsi_map,
ICE_MAX_VSI);
/* A rule already exists with the new VSI being added */
if (cur_handle == vsi_handle) {
status = ICE_ERR_ALREADY_EXISTS;
goto exit;
}
vsi_handle_arr[0] = cur_handle;
vsi_handle_arr[1] = vsi_handle;
status = ice_create_vsi_list_rule(hw, &vsi_handle_arr[0], 2,
&vsi_list_id, lkup_type);
if (status)
goto exit;
tmp_fltr = v_list_itr->fltr_info;
tmp_fltr.fltr_rule_id = v_list_itr->fltr_info.fltr_rule_id;
tmp_fltr.fwd_id.vsi_list_id = vsi_list_id;
tmp_fltr.fltr_act = ICE_FWD_TO_VSI_LIST;
/* Update the previous switch rule to a new VSI list which
* includes current VSI that is requested
*/
status = ice_update_pkt_fwd_rule(hw, &tmp_fltr);
if (status)
goto exit;
/* before overriding VSI list map info. decrement ref_cnt of
* previous VSI list
*/
v_list_itr->vsi_list_info->ref_cnt--;
/* now update to newly created list */
v_list_itr->fltr_info.fwd_id.vsi_list_id = vsi_list_id;
v_list_itr->vsi_list_info =
ice_create_vsi_list_map(hw, &vsi_handle_arr[0], 2,
vsi_list_id);
v_list_itr->vsi_count++;
}
exit:
mutex_unlock(rule_lock);
return status;
}
/**
* ice_add_vlan - Add VLAN based filter rule
* @hw: pointer to the hardware structure
* @v_list: list of VLAN entries and forwarding information
*/
enum ice_status
ice_add_vlan(struct ice_hw *hw, struct list_head *v_list)
{
struct ice_fltr_list_entry *v_list_itr;
if (!v_list || !hw)
return ICE_ERR_PARAM;
list_for_each_entry(v_list_itr, v_list, list_entry) {
if (v_list_itr->fltr_info.lkup_type != ICE_SW_LKUP_VLAN)
return ICE_ERR_PARAM;
v_list_itr->fltr_info.flag = ICE_FLTR_TX;
v_list_itr->status = ice_add_vlan_internal(hw, v_list_itr);
if (v_list_itr->status)
return v_list_itr->status;
}
return 0;
}
/**
* ice_rem_sw_rule_info
* @hw: pointer to the hardware structure
* @rule_head: pointer to the switch list structure that we want to delete
*/
static void
ice_rem_sw_rule_info(struct ice_hw *hw, struct list_head *rule_head)
{
if (!list_empty(rule_head)) {
struct ice_fltr_mgmt_list_entry *entry;
struct ice_fltr_mgmt_list_entry *tmp;
list_for_each_entry_safe(entry, tmp, rule_head, list_entry) {
list_del(&entry->list_entry);
devm_kfree(ice_hw_to_dev(hw), entry);
}
}
}
/**
* ice_cfg_dflt_vsi - change state of VSI to set/clear default
* @hw: pointer to the hardware structure
* @vsi_handle: VSI handle to set as default
* @set: true to add the above mentioned switch rule, false to remove it
* @direction: ICE_FLTR_RX or ICE_FLTR_TX
*
* add filter rule to set/unset given VSI as default VSI for the switch
* (represented by swid)
*/
enum ice_status
ice_cfg_dflt_vsi(struct ice_hw *hw, u16 vsi_handle, bool set, u8 direction)
{
struct ice_aqc_sw_rules_elem *s_rule;
struct ice_fltr_info f_info;
enum ice_adminq_opc opcode;
enum ice_status status;
u16 s_rule_size;
u16 hw_vsi_id;
if (!ice_is_vsi_valid(hw, vsi_handle))
return ICE_ERR_PARAM;
hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle);
s_rule_size = set ? ICE_SW_RULE_RX_TX_ETH_HDR_SIZE :
ICE_SW_RULE_RX_TX_NO_HDR_SIZE;
s_rule = devm_kzalloc(ice_hw_to_dev(hw), s_rule_size, GFP_KERNEL);
if (!s_rule)
return ICE_ERR_NO_MEMORY;
memset(&f_info, 0, sizeof(f_info));
f_info.lkup_type = ICE_SW_LKUP_DFLT;
f_info.flag = direction;
f_info.fltr_act = ICE_FWD_TO_VSI;
f_info.fwd_id.hw_vsi_id = hw_vsi_id;
if (f_info.flag & ICE_FLTR_RX) {
f_info.src = hw->port_info->lport;
f_info.src_id = ICE_SRC_ID_LPORT;
if (!set)
f_info.fltr_rule_id =
hw->port_info->dflt_rx_vsi_rule_id;
} else if (f_info.flag & ICE_FLTR_TX) {
f_info.src_id = ICE_SRC_ID_VSI;
f_info.src = hw_vsi_id;
if (!set)
f_info.fltr_rule_id =
hw->port_info->dflt_tx_vsi_rule_id;
}
if (set)
opcode = ice_aqc_opc_add_sw_rules;
else
opcode = ice_aqc_opc_remove_sw_rules;
ice_fill_sw_rule(hw, &f_info, s_rule, opcode);
status = ice_aq_sw_rules(hw, s_rule, s_rule_size, 1, opcode, NULL);
if (status || !(f_info.flag & ICE_FLTR_TX_RX))
goto out;
if (set) {
u16 index = le16_to_cpu(s_rule->pdata.lkup_tx_rx.index);
if (f_info.flag & ICE_FLTR_TX) {
hw->port_info->dflt_tx_vsi_num = hw_vsi_id;
hw->port_info->dflt_tx_vsi_rule_id = index;
} else if (f_info.flag & ICE_FLTR_RX) {
hw->port_info->dflt_rx_vsi_num = hw_vsi_id;
hw->port_info->dflt_rx_vsi_rule_id = index;
}
} else {
if (f_info.flag & ICE_FLTR_TX) {
hw->port_info->dflt_tx_vsi_num = ICE_DFLT_VSI_INVAL;
hw->port_info->dflt_tx_vsi_rule_id = ICE_INVAL_ACT;
} else if (f_info.flag & ICE_FLTR_RX) {
hw->port_info->dflt_rx_vsi_num = ICE_DFLT_VSI_INVAL;
hw->port_info->dflt_rx_vsi_rule_id = ICE_INVAL_ACT;
}
}
out:
devm_kfree(ice_hw_to_dev(hw), s_rule);
return status;
}
/**
* ice_remove_mac - remove a MAC address based filter rule
* @hw: pointer to the hardware structure
* @m_list: list of MAC addresses and forwarding information
*
* This function removes either a MAC filter rule or a specific VSI from a
* VSI list for a multicast MAC address.
*
* Returns ICE_ERR_DOES_NOT_EXIST if a given entry was not added by
* ice_add_mac. Caller should be aware that this call will only work if all
* the entries passed into m_list were added previously. It will not attempt to
* do a partial remove of entries that were found.
*/
enum ice_status
ice_remove_mac(struct ice_hw *hw, struct list_head *m_list)
{
struct ice_fltr_list_entry *list_itr, *tmp;
if (!m_list)
return ICE_ERR_PARAM;
list_for_each_entry_safe(list_itr, tmp, m_list, list_entry) {
enum ice_sw_lkup_type l_type = list_itr->fltr_info.lkup_type;
if (l_type != ICE_SW_LKUP_MAC)
return ICE_ERR_PARAM;
list_itr->status = ice_remove_rule_internal(hw,
ICE_SW_LKUP_MAC,
list_itr);
if (list_itr->status)
return list_itr->status;
}
return 0;
}
/**
* ice_remove_vlan - Remove VLAN based filter rule
* @hw: pointer to the hardware structure
* @v_list: list of VLAN entries and forwarding information
*/
enum ice_status
ice_remove_vlan(struct ice_hw *hw, struct list_head *v_list)
{
struct ice_fltr_list_entry *v_list_itr, *tmp;
if (!v_list || !hw)
return ICE_ERR_PARAM;
list_for_each_entry_safe(v_list_itr, tmp, v_list, list_entry) {
enum ice_sw_lkup_type l_type = v_list_itr->fltr_info.lkup_type;
if (l_type != ICE_SW_LKUP_VLAN)
return ICE_ERR_PARAM;
v_list_itr->status = ice_remove_rule_internal(hw,
ICE_SW_LKUP_VLAN,
v_list_itr);
if (v_list_itr->status)
return v_list_itr->status;
}
return 0;
}
/**
* ice_vsi_uses_fltr - Determine if given VSI uses specified filter
* @fm_entry: filter entry to inspect
* @vsi_handle: VSI handle to compare with filter info
*/
static bool
ice_vsi_uses_fltr(struct ice_fltr_mgmt_list_entry *fm_entry, u16 vsi_handle)
{
return ((fm_entry->fltr_info.fltr_act == ICE_FWD_TO_VSI &&
fm_entry->fltr_info.vsi_handle == vsi_handle) ||
(fm_entry->fltr_info.fltr_act == ICE_FWD_TO_VSI_LIST &&
(test_bit(vsi_handle, fm_entry->vsi_list_info->vsi_map))));
}
/**
* ice_add_entry_to_vsi_fltr_list - Add copy of fltr_list_entry to remove list
* @hw: pointer to the hardware structure
* @vsi_handle: VSI handle to remove filters from
* @vsi_list_head: pointer to the list to add entry to
* @fi: pointer to fltr_info of filter entry to copy & add
*
* Helper function, used when creating a list of filters to remove from
* a specific VSI. The entry added to vsi_list_head is a COPY of the
* original filter entry, with the exception of fltr_info.fltr_act and
* fltr_info.fwd_id fields. These are set such that later logic can
* extract which VSI to remove the fltr from, and pass on that information.
*/
static enum ice_status
ice_add_entry_to_vsi_fltr_list(struct ice_hw *hw, u16 vsi_handle,
struct list_head *vsi_list_head,
struct ice_fltr_info *fi)
{
struct ice_fltr_list_entry *tmp;
/* this memory is freed up in the caller function
* once filters for this VSI are removed
*/
tmp = devm_kzalloc(ice_hw_to_dev(hw), sizeof(*tmp), GFP_KERNEL);
if (!tmp)
return ICE_ERR_NO_MEMORY;
tmp->fltr_info = *fi;
/* Overwrite these fields to indicate which VSI to remove filter from,
* so find and remove logic can extract the information from the
* list entries. Note that original entries will still have proper
* values.
*/
tmp->fltr_info.fltr_act = ICE_FWD_TO_VSI;
tmp->fltr_info.vsi_handle = vsi_handle;
tmp->fltr_info.fwd_id.hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle);
list_add(&tmp->list_entry, vsi_list_head);
return 0;
}
/**
* ice_add_to_vsi_fltr_list - Add VSI filters to the list
* @hw: pointer to the hardware structure
* @vsi_handle: VSI handle to remove filters from
* @lkup_list_head: pointer to the list that has certain lookup type filters
* @vsi_list_head: pointer to the list pertaining to VSI with vsi_handle
*
* Locates all filters in lkup_list_head that are used by the given VSI,
* and adds COPIES of those entries to vsi_list_head (intended to be used
* to remove the listed filters).
* Note that this means all entries in vsi_list_head must be explicitly
* deallocated by the caller when done with list.
*/
static enum ice_status
ice_add_to_vsi_fltr_list(struct ice_hw *hw, u16 vsi_handle,
struct list_head *lkup_list_head,
struct list_head *vsi_list_head)
{
struct ice_fltr_mgmt_list_entry *fm_entry;
enum ice_status status = 0;
/* check to make sure VSI ID is valid and within boundary */
if (!ice_is_vsi_valid(hw, vsi_handle))
return ICE_ERR_PARAM;
list_for_each_entry(fm_entry, lkup_list_head, list_entry) {
struct ice_fltr_info *fi;
fi = &fm_entry->fltr_info;
if (!fi || !ice_vsi_uses_fltr(fm_entry, vsi_handle))
continue;
status = ice_add_entry_to_vsi_fltr_list(hw, vsi_handle,
vsi_list_head, fi);
if (status)
return status;
}
return status;
}
/**
* ice_determine_promisc_mask
* @fi: filter info to parse
*
* Helper function to determine which ICE_PROMISC_ mask corresponds
* to given filter into.
*/
static u8 ice_determine_promisc_mask(struct ice_fltr_info *fi)
{
u16 vid = fi->l_data.mac_vlan.vlan_id;
u8 *macaddr = fi->l_data.mac.mac_addr;
bool is_tx_fltr = false;
u8 promisc_mask = 0;
if (fi->flag == ICE_FLTR_TX)
is_tx_fltr = true;
if (is_broadcast_ether_addr(macaddr))
promisc_mask |= is_tx_fltr ?
ICE_PROMISC_BCAST_TX : ICE_PROMISC_BCAST_RX;
else if (is_multicast_ether_addr(macaddr))
promisc_mask |= is_tx_fltr ?
ICE_PROMISC_MCAST_TX : ICE_PROMISC_MCAST_RX;
else if (is_unicast_ether_addr(macaddr))
promisc_mask |= is_tx_fltr ?
ICE_PROMISC_UCAST_TX : ICE_PROMISC_UCAST_RX;
if (vid)
promisc_mask |= is_tx_fltr ?
ICE_PROMISC_VLAN_TX : ICE_PROMISC_VLAN_RX;
return promisc_mask;
}
/**
* ice_remove_promisc - Remove promisc based filter rules
* @hw: pointer to the hardware structure
* @recp_id: recipe ID for which the rule needs to removed
* @v_list: list of promisc entries
*/
static enum ice_status
ice_remove_promisc(struct ice_hw *hw, u8 recp_id,
struct list_head *v_list)
{
struct ice_fltr_list_entry *v_list_itr, *tmp;
list_for_each_entry_safe(v_list_itr, tmp, v_list, list_entry) {
v_list_itr->status =
ice_remove_rule_internal(hw, recp_id, v_list_itr);
if (v_list_itr->status)
return v_list_itr->status;
}
return 0;
}
/**
* ice_clear_vsi_promisc - clear specified promiscuous mode(s) for given VSI
* @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_clear_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask,
u16 vid)
{
struct ice_switch_info *sw = hw->switch_info;
struct ice_fltr_list_entry *fm_entry, *tmp;
struct list_head remove_list_head;
struct ice_fltr_mgmt_list_entry *itr;
struct list_head *rule_head;
struct mutex *rule_lock; /* Lock to protect filter rule list */
enum ice_status status = 0;
u8 recipe_id;
if (!ice_is_vsi_valid(hw, vsi_handle))
return ICE_ERR_PARAM;
if (vid)
recipe_id = ICE_SW_LKUP_PROMISC_VLAN;
else
recipe_id = ICE_SW_LKUP_PROMISC;
rule_head = &sw->recp_list[recipe_id].filt_rules;
rule_lock = &sw->recp_list[recipe_id].filt_rule_lock;
INIT_LIST_HEAD(&remove_list_head);
mutex_lock(rule_lock);
list_for_each_entry(itr, rule_head, list_entry) {
u8 fltr_promisc_mask = 0;
if (!ice_vsi_uses_fltr(itr, vsi_handle))
continue;
fltr_promisc_mask |=
ice_determine_promisc_mask(&itr->fltr_info);
/* Skip if filter is not completely specified by given mask */
if (fltr_promisc_mask & ~promisc_mask)
continue;
status = ice_add_entry_to_vsi_fltr_list(hw, vsi_handle,
&remove_list_head,
&itr->fltr_info);
if (status) {
mutex_unlock(rule_lock);
goto free_fltr_list;
}
}
mutex_unlock(rule_lock);
status = ice_remove_promisc(hw, recipe_id, &remove_list_head);
free_fltr_list:
list_for_each_entry_safe(fm_entry, tmp, &remove_list_head, list_entry) {
list_del(&fm_entry->list_entry);
devm_kfree(ice_hw_to_dev(hw), fm_entry);
}
return status;
}
/**
* ice_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_set_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask, u16 vid)
{
enum { UCAST_FLTR = 1, MCAST_FLTR, BCAST_FLTR };
struct ice_fltr_list_entry f_list_entry;
struct ice_fltr_info new_fltr;
enum ice_status status = 0;
bool is_tx_fltr;
u16 hw_vsi_id;
int pkt_type;
u8 recipe_id;
if (!ice_is_vsi_valid(hw, vsi_handle))
return ICE_ERR_PARAM;
hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle);
memset(&new_fltr, 0, sizeof(new_fltr));
if (promisc_mask & (ICE_PROMISC_VLAN_RX | ICE_PROMISC_VLAN_TX)) {
new_fltr.lkup_type = ICE_SW_LKUP_PROMISC_VLAN;
new_fltr.l_data.mac_vlan.vlan_id = vid;
recipe_id = ICE_SW_LKUP_PROMISC_VLAN;
} else {
new_fltr.lkup_type = ICE_SW_LKUP_PROMISC;
recipe_id = ICE_SW_LKUP_PROMISC;
}
/* Separate filters must be set for each direction/packet type
* combination, so we will loop over the mask value, store the
* individual type, and clear it out in the input mask as it
* is found.
*/
while (promisc_mask) {
u8 *mac_addr;
pkt_type = 0;
is_tx_fltr = false;
if (promisc_mask & ICE_PROMISC_UCAST_RX) {
promisc_mask &= ~ICE_PROMISC_UCAST_RX;
pkt_type = UCAST_FLTR;
} else if (promisc_mask & ICE_PROMISC_UCAST_TX) {
promisc_mask &= ~ICE_PROMISC_UCAST_TX;
pkt_type = UCAST_FLTR;
is_tx_fltr = true;
} else if (promisc_mask & ICE_PROMISC_MCAST_RX) {
promisc_mask &= ~ICE_PROMISC_MCAST_RX;
pkt_type = MCAST_FLTR;
} else if (promisc_mask & ICE_PROMISC_MCAST_TX) {
promisc_mask &= ~ICE_PROMISC_MCAST_TX;
pkt_type = MCAST_FLTR;
is_tx_fltr = true;
} else if (promisc_mask & ICE_PROMISC_BCAST_RX) {
promisc_mask &= ~ICE_PROMISC_BCAST_RX;
pkt_type = BCAST_FLTR;
} else if (promisc_mask & ICE_PROMISC_BCAST_TX) {
promisc_mask &= ~ICE_PROMISC_BCAST_TX;
pkt_type = BCAST_FLTR;
is_tx_fltr = true;
}
/* Check for VLAN promiscuous flag */
if (promisc_mask & ICE_PROMISC_VLAN_RX) {
promisc_mask &= ~ICE_PROMISC_VLAN_RX;
} else if (promisc_mask & ICE_PROMISC_VLAN_TX) {
promisc_mask &= ~ICE_PROMISC_VLAN_TX;
is_tx_fltr = true;
}
/* Set filter DA based on packet type */
mac_addr = new_fltr.l_data.mac.mac_addr;
if (pkt_type == BCAST_FLTR) {
eth_broadcast_addr(mac_addr);
} else if (pkt_type == MCAST_FLTR ||
pkt_type == UCAST_FLTR) {
/* Use the dummy ether header DA */
ether_addr_copy(mac_addr, dummy_eth_header);
if (pkt_type == MCAST_FLTR)
mac_addr[0] |= 0x1; /* Set multicast bit */
}
/* Need to reset this to zero for all iterations */
new_fltr.flag = 0;
if (is_tx_fltr) {
new_fltr.flag |= ICE_FLTR_TX;
new_fltr.src = hw_vsi_id;
} else {
new_fltr.flag |= ICE_FLTR_RX;
new_fltr.src = hw->port_info->lport;
}
new_fltr.fltr_act = ICE_FWD_TO_VSI;
new_fltr.vsi_handle = vsi_handle;
new_fltr.fwd_id.hw_vsi_id = hw_vsi_id;
f_list_entry.fltr_info = new_fltr;
status = ice_add_rule_internal(hw, recipe_id, &f_list_entry);
if (status)
goto set_promisc_exit;
}
set_promisc_exit:
return status;
}
/**
* ice_set_vlan_vsi_promisc
* @hw: pointer to the hardware structure
* @vsi_handle: VSI handle to configure
* @promisc_mask: mask of promiscuous config bits
* @rm_vlan_promisc: Clear VLANs VSI promisc mode
*
* Configure VSI with all associated VLANs to given promiscuous mode(s)
*/
enum ice_status
ice_set_vlan_vsi_promisc(struct ice_hw *hw, u16 vsi_handle, u8 promisc_mask,
bool rm_vlan_promisc)
{
struct ice_switch_info *sw = hw->switch_info;
struct ice_fltr_list_entry *list_itr, *tmp;
struct list_head vsi_list_head;
struct list_head *vlan_head;
struct mutex *vlan_lock; /* Lock to protect filter rule list */
enum ice_status status;
u16 vlan_id;
INIT_LIST_HEAD(&vsi_list_head);
vlan_lock = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rule_lock;
vlan_head = &sw->recp_list[ICE_SW_LKUP_VLAN].filt_rules;
mutex_lock(vlan_lock);
status = ice_add_to_vsi_fltr_list(hw, vsi_handle, vlan_head,
&vsi_list_head);
mutex_unlock(vlan_lock);
if (status)
goto free_fltr_list;
list_for_each_entry(list_itr, &vsi_list_head, list_entry) {
vlan_id = list_itr->fltr_info.l_data.vlan.vlan_id;
if (rm_vlan_promisc)
status = ice_clear_vsi_promisc(hw, vsi_handle,
promisc_mask, vlan_id);
else
status = ice_set_vsi_promisc(hw, vsi_handle,
promisc_mask, vlan_id);
if (status)
break;
}
free_fltr_list:
list_for_each_entry_safe(list_itr, tmp, &vsi_list_head, list_entry) {
list_del(&list_itr->list_entry);
devm_kfree(ice_hw_to_dev(hw), list_itr);
}
return status;
}
/**
* ice_remove_vsi_lkup_fltr - Remove lookup type filters for a VSI
* @hw: pointer to the hardware structure
* @vsi_handle: VSI handle to remove filters from
* @lkup: switch rule filter lookup type
*/
static void
ice_remove_vsi_lkup_fltr(struct ice_hw *hw, u16 vsi_handle,
enum ice_sw_lkup_type lkup)
{
struct ice_switch_info *sw = hw->switch_info;
struct ice_fltr_list_entry *fm_entry;
struct list_head remove_list_head;
struct list_head *rule_head;
struct ice_fltr_list_entry *tmp;
struct mutex *rule_lock; /* Lock to protect filter rule list */
enum ice_status status;
INIT_LIST_HEAD(&remove_list_head);
rule_lock = &sw->recp_list[lkup].filt_rule_lock;
rule_head = &sw->recp_list[lkup].filt_rules;
mutex_lock(rule_lock);
status = ice_add_to_vsi_fltr_list(hw, vsi_handle, rule_head,
&remove_list_head);
mutex_unlock(rule_lock);
if (status)
return;
switch (lkup) {
case ICE_SW_LKUP_MAC:
ice_remove_mac(hw, &remove_list_head);
break;
case ICE_SW_LKUP_VLAN:
ice_remove_vlan(hw, &remove_list_head);
break;
case ICE_SW_LKUP_PROMISC:
case ICE_SW_LKUP_PROMISC_VLAN:
ice_remove_promisc(hw, lkup, &remove_list_head);
break;
case ICE_SW_LKUP_MAC_VLAN:
case ICE_SW_LKUP_ETHERTYPE:
case ICE_SW_LKUP_ETHERTYPE_MAC:
case ICE_SW_LKUP_DFLT:
case ICE_SW_LKUP_LAST:
default:
ice_debug(hw, ICE_DBG_SW, "Unsupported lookup type %d\n", lkup);
break;
}
list_for_each_entry_safe(fm_entry, tmp, &remove_list_head, list_entry) {
list_del(&fm_entry->list_entry);
devm_kfree(ice_hw_to_dev(hw), fm_entry);
}
}
/**
* ice_remove_vsi_fltr - Remove all filters for a VSI
* @hw: pointer to the hardware structure
* @vsi_handle: VSI handle to remove filters from
*/
void ice_remove_vsi_fltr(struct ice_hw *hw, u16 vsi_handle)
{
ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_MAC);
ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_MAC_VLAN);
ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_PROMISC);
ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_VLAN);
ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_DFLT);
ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_ETHERTYPE);
ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_ETHERTYPE_MAC);
ice_remove_vsi_lkup_fltr(hw, vsi_handle, ICE_SW_LKUP_PROMISC_VLAN);
}
/**
* ice_replay_vsi_fltr - Replay filters for requested VSI
* @hw: pointer to the hardware structure
* @vsi_handle: driver VSI handle
* @recp_id: Recipe ID for which rules need to be replayed
* @list_head: list for which filters need to be replayed
*
* Replays the filter of recipe recp_id for a VSI represented via vsi_handle.
* It is required to pass valid VSI handle.
*/
static enum ice_status
ice_replay_vsi_fltr(struct ice_hw *hw, u16 vsi_handle, u8 recp_id,
struct list_head *list_head)
{
struct ice_fltr_mgmt_list_entry *itr;
enum ice_status status = 0;
u16 hw_vsi_id;
if (list_empty(list_head))
return status;
hw_vsi_id = ice_get_hw_vsi_num(hw, vsi_handle);
list_for_each_entry(itr, list_head, list_entry) {
struct ice_fltr_list_entry f_entry;
f_entry.fltr_info = itr->fltr_info;
if (itr->vsi_count < 2 && recp_id != ICE_SW_LKUP_VLAN &&
itr->fltr_info.vsi_handle == vsi_handle) {
/* update the src in case it is VSI num */
if (f_entry.fltr_info.src_id == ICE_SRC_ID_VSI)
f_entry.fltr_info.src = hw_vsi_id;
status = ice_add_rule_internal(hw, recp_id, &f_entry);
if (status)
goto end;
continue;
}
if (!itr->vsi_list_info ||
!test_bit(vsi_handle, itr->vsi_list_info->vsi_map))
continue;
/* Clearing it so that the logic can add it back */
clear_bit(vsi_handle, itr->vsi_list_info->vsi_map);
f_entry.fltr_info.vsi_handle = vsi_handle;
f_entry.fltr_info.fltr_act = ICE_FWD_TO_VSI;
/* update the src in case it is VSI num */
if (f_entry.fltr_info.src_id == ICE_SRC_ID_VSI)
f_entry.fltr_info.src = hw_vsi_id;
if (recp_id == ICE_SW_LKUP_VLAN)
status = ice_add_vlan_internal(hw, &f_entry);
else
status = ice_add_rule_internal(hw, recp_id, &f_entry);
if (status)
goto end;
}
end:
return status;
}
/**
* ice_replay_vsi_all_fltr - replay all filters stored in bookkeeping lists
* @hw: pointer to the hardware structure
* @vsi_handle: driver VSI handle
*
* Replays filters for requested VSI via vsi_handle.
*/
enum ice_status ice_replay_vsi_all_fltr(struct ice_hw *hw, u16 vsi_handle)
{
struct ice_switch_info *sw = hw->switch_info;
enum ice_status status = 0;
u8 i;
for (i = 0; i < ICE_SW_LKUP_LAST; i++) {
struct list_head *head;
head = &sw->recp_list[i].filt_replay_rules;
status = ice_replay_vsi_fltr(hw, vsi_handle, i, head);
if (status)
return status;
}
return status;
}
/**
* ice_rm_all_sw_replay_rule_info - deletes filter replay rules
* @hw: pointer to the HW struct
*
* Deletes the filter replay rules.
*/
void ice_rm_all_sw_replay_rule_info(struct ice_hw *hw)
{
struct ice_switch_info *sw = hw->switch_info;
u8 i;
if (!sw)
return;
for (i = 0; i < ICE_SW_LKUP_LAST; i++) {
if (!list_empty(&sw->recp_list[i].filt_replay_rules)) {
struct list_head *l_head;
l_head = &sw->recp_list[i].filt_replay_rules;
ice_rem_sw_rule_info(hw, l_head);
}
}
}
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