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en_fs.c
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en_fs.c
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/*
* Copyright (c) 2015, Mellanox Technologies. All rights reserved.
*
* This software is available to you under a choice of one of two
* licenses. You may choose to be licensed under the terms of the GNU
* General Public License (GPL) Version 2, available from the file
* COPYING in the main directory of this source tree, or the
* OpenIB.org BSD license below:
*
* Redistribution and use in source and binary forms, with or
* without modification, are permitted provided that the following
* conditions are met:
*
* - Redistributions of source code must retain the above
* copyright notice, this list of conditions and the following
* disclaimer.
*
* - Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include <linux/list.h>
#include <linux/ip.h>
#include <linux/ipv6.h>
#include <linux/tcp.h>
#include <linux/mlx5/fs.h>
#include <linux/mlx5/mpfs.h>
#include "en.h"
#include "lib/mpfs.h"
static int mlx5e_add_l2_flow_rule(struct mlx5e_priv *priv,
struct mlx5e_l2_rule *ai, int type);
static void mlx5e_del_l2_flow_rule(struct mlx5e_priv *priv,
struct mlx5e_l2_rule *ai);
enum {
MLX5E_FULLMATCH = 0,
MLX5E_ALLMULTI = 1,
MLX5E_PROMISC = 2,
};
enum {
MLX5E_UC = 0,
MLX5E_MC_IPV4 = 1,
MLX5E_MC_IPV6 = 2,
MLX5E_MC_OTHER = 3,
};
enum {
MLX5E_ACTION_NONE = 0,
MLX5E_ACTION_ADD = 1,
MLX5E_ACTION_DEL = 2,
};
struct mlx5e_l2_hash_node {
struct hlist_node hlist;
u8 action;
struct mlx5e_l2_rule ai;
bool mpfs;
};
static inline int mlx5e_hash_l2(u8 *addr)
{
return addr[5];
}
static void mlx5e_add_l2_to_hash(struct hlist_head *hash, u8 *addr)
{
struct mlx5e_l2_hash_node *hn;
int ix = mlx5e_hash_l2(addr);
int found = 0;
hlist_for_each_entry(hn, &hash[ix], hlist)
if (ether_addr_equal_64bits(hn->ai.addr, addr)) {
found = 1;
break;
}
if (found) {
hn->action = MLX5E_ACTION_NONE;
return;
}
hn = kzalloc(sizeof(*hn), GFP_ATOMIC);
if (!hn)
return;
ether_addr_copy(hn->ai.addr, addr);
hn->action = MLX5E_ACTION_ADD;
hlist_add_head(&hn->hlist, &hash[ix]);
}
static void mlx5e_del_l2_from_hash(struct mlx5e_l2_hash_node *hn)
{
hlist_del(&hn->hlist);
kfree(hn);
}
static int mlx5e_vport_context_update_vlans(struct mlx5e_priv *priv)
{
struct net_device *ndev = priv->netdev;
int max_list_size;
int list_size;
u16 *vlans;
int vlan;
int err;
int i;
list_size = 0;
for_each_set_bit(vlan, priv->fs.vlan.active_cvlans, VLAN_N_VID)
list_size++;
max_list_size = 1 << MLX5_CAP_GEN(priv->mdev, log_max_vlan_list);
if (list_size > max_list_size) {
netdev_warn(ndev,
"netdev vlans list size (%d) > (%d) max vport list size, some vlans will be dropped\n",
list_size, max_list_size);
list_size = max_list_size;
}
vlans = kcalloc(list_size, sizeof(*vlans), GFP_KERNEL);
if (!vlans)
return -ENOMEM;
i = 0;
for_each_set_bit(vlan, priv->fs.vlan.active_cvlans, VLAN_N_VID) {
if (i >= list_size)
break;
vlans[i++] = vlan;
}
err = mlx5_modify_nic_vport_vlans(priv->mdev, vlans, list_size);
if (err)
netdev_err(ndev, "Failed to modify vport vlans list err(%d)\n",
err);
kfree(vlans);
return err;
}
enum mlx5e_vlan_rule_type {
MLX5E_VLAN_RULE_TYPE_UNTAGGED,
MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID,
MLX5E_VLAN_RULE_TYPE_ANY_STAG_VID,
MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID,
MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID,
};
static int __mlx5e_add_vlan_rule(struct mlx5e_priv *priv,
enum mlx5e_vlan_rule_type rule_type,
u16 vid, struct mlx5_flow_spec *spec)
{
struct mlx5_flow_table *ft = priv->fs.vlan.ft.t;
struct mlx5_flow_destination dest = {};
struct mlx5_flow_handle **rule_p;
MLX5_DECLARE_FLOW_ACT(flow_act);
int err = 0;
dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
dest.ft = priv->fs.l2.ft.t;
spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
switch (rule_type) {
case MLX5E_VLAN_RULE_TYPE_UNTAGGED:
/* cvlan_tag enabled in match criteria and
* disabled in match value means both S & C tags
* don't exist (untagged of both)
*/
rule_p = &priv->fs.vlan.untagged_rule;
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
outer_headers.cvlan_tag);
break;
case MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID:
rule_p = &priv->fs.vlan.any_cvlan_rule;
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
outer_headers.cvlan_tag);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.cvlan_tag, 1);
break;
case MLX5E_VLAN_RULE_TYPE_ANY_STAG_VID:
rule_p = &priv->fs.vlan.any_svlan_rule;
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
outer_headers.svlan_tag);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.svlan_tag, 1);
break;
case MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID:
rule_p = &priv->fs.vlan.active_svlans_rule[vid];
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
outer_headers.svlan_tag);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.svlan_tag, 1);
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
outer_headers.first_vid);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.first_vid,
vid);
break;
default: /* MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID */
rule_p = &priv->fs.vlan.active_cvlans_rule[vid];
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
outer_headers.cvlan_tag);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.cvlan_tag, 1);
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria,
outer_headers.first_vid);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.first_vid,
vid);
break;
}
if (WARN_ONCE(*rule_p, "VLAN rule already exists type %d", rule_type))
return 0;
*rule_p = mlx5_add_flow_rules(ft, spec, &flow_act, &dest, 1);
if (IS_ERR(*rule_p)) {
err = PTR_ERR(*rule_p);
*rule_p = NULL;
netdev_err(priv->netdev, "%s: add rule failed\n", __func__);
}
return err;
}
static int mlx5e_add_vlan_rule(struct mlx5e_priv *priv,
enum mlx5e_vlan_rule_type rule_type, u16 vid)
{
struct mlx5_flow_spec *spec;
int err = 0;
spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
if (!spec)
return -ENOMEM;
if (rule_type == MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID)
mlx5e_vport_context_update_vlans(priv);
err = __mlx5e_add_vlan_rule(priv, rule_type, vid, spec);
kvfree(spec);
return err;
}
static void mlx5e_del_vlan_rule(struct mlx5e_priv *priv,
enum mlx5e_vlan_rule_type rule_type, u16 vid)
{
switch (rule_type) {
case MLX5E_VLAN_RULE_TYPE_UNTAGGED:
if (priv->fs.vlan.untagged_rule) {
mlx5_del_flow_rules(priv->fs.vlan.untagged_rule);
priv->fs.vlan.untagged_rule = NULL;
}
break;
case MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID:
if (priv->fs.vlan.any_cvlan_rule) {
mlx5_del_flow_rules(priv->fs.vlan.any_cvlan_rule);
priv->fs.vlan.any_cvlan_rule = NULL;
}
break;
case MLX5E_VLAN_RULE_TYPE_ANY_STAG_VID:
if (priv->fs.vlan.any_svlan_rule) {
mlx5_del_flow_rules(priv->fs.vlan.any_svlan_rule);
priv->fs.vlan.any_svlan_rule = NULL;
}
break;
case MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID:
if (priv->fs.vlan.active_svlans_rule[vid]) {
mlx5_del_flow_rules(priv->fs.vlan.active_svlans_rule[vid]);
priv->fs.vlan.active_svlans_rule[vid] = NULL;
}
break;
case MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID:
if (priv->fs.vlan.active_cvlans_rule[vid]) {
mlx5_del_flow_rules(priv->fs.vlan.active_cvlans_rule[vid]);
priv->fs.vlan.active_cvlans_rule[vid] = NULL;
}
mlx5e_vport_context_update_vlans(priv);
break;
}
}
static void mlx5e_del_any_vid_rules(struct mlx5e_priv *priv)
{
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID, 0);
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_STAG_VID, 0);
}
static int mlx5e_add_any_vid_rules(struct mlx5e_priv *priv)
{
int err;
err = mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID, 0);
if (err)
return err;
return mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_STAG_VID, 0);
}
void mlx5e_enable_cvlan_filter(struct mlx5e_priv *priv)
{
if (!priv->fs.vlan.cvlan_filter_disabled)
return;
priv->fs.vlan.cvlan_filter_disabled = false;
if (priv->netdev->flags & IFF_PROMISC)
return;
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID, 0);
}
void mlx5e_disable_cvlan_filter(struct mlx5e_priv *priv)
{
if (priv->fs.vlan.cvlan_filter_disabled)
return;
priv->fs.vlan.cvlan_filter_disabled = true;
if (priv->netdev->flags & IFF_PROMISC)
return;
mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_ANY_CTAG_VID, 0);
}
static int mlx5e_vlan_rx_add_cvid(struct mlx5e_priv *priv, u16 vid)
{
int err;
set_bit(vid, priv->fs.vlan.active_cvlans);
err = mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID, vid);
if (err)
clear_bit(vid, priv->fs.vlan.active_cvlans);
return err;
}
static int mlx5e_vlan_rx_add_svid(struct mlx5e_priv *priv, u16 vid)
{
struct net_device *netdev = priv->netdev;
int err;
set_bit(vid, priv->fs.vlan.active_svlans);
err = mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, vid);
if (err) {
clear_bit(vid, priv->fs.vlan.active_svlans);
return err;
}
/* Need to fix some features.. */
netdev_update_features(netdev);
return err;
}
int mlx5e_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
{
struct mlx5e_priv *priv = netdev_priv(dev);
if (be16_to_cpu(proto) == ETH_P_8021Q)
return mlx5e_vlan_rx_add_cvid(priv, vid);
else if (be16_to_cpu(proto) == ETH_P_8021AD)
return mlx5e_vlan_rx_add_svid(priv, vid);
return -EOPNOTSUPP;
}
int mlx5e_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
{
struct mlx5e_priv *priv = netdev_priv(dev);
if (be16_to_cpu(proto) == ETH_P_8021Q) {
clear_bit(vid, priv->fs.vlan.active_cvlans);
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID, vid);
} else if (be16_to_cpu(proto) == ETH_P_8021AD) {
clear_bit(vid, priv->fs.vlan.active_svlans);
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, vid);
netdev_update_features(dev);
}
return 0;
}
static void mlx5e_add_vlan_rules(struct mlx5e_priv *priv)
{
int i;
mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_UNTAGGED, 0);
for_each_set_bit(i, priv->fs.vlan.active_cvlans, VLAN_N_VID) {
mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID, i);
}
for_each_set_bit(i, priv->fs.vlan.active_svlans, VLAN_N_VID)
mlx5e_add_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, i);
if (priv->fs.vlan.cvlan_filter_disabled)
mlx5e_add_any_vid_rules(priv);
}
static void mlx5e_del_vlan_rules(struct mlx5e_priv *priv)
{
int i;
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_UNTAGGED, 0);
for_each_set_bit(i, priv->fs.vlan.active_cvlans, VLAN_N_VID) {
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_CTAG_VID, i);
}
for_each_set_bit(i, priv->fs.vlan.active_svlans, VLAN_N_VID)
mlx5e_del_vlan_rule(priv, MLX5E_VLAN_RULE_TYPE_MATCH_STAG_VID, i);
WARN_ON_ONCE(!(test_bit(MLX5E_STATE_DESTROYING, &priv->state)));
/* must be called after DESTROY bit is set and
* set_rx_mode is called and flushed
*/
if (priv->fs.vlan.cvlan_filter_disabled)
mlx5e_del_any_vid_rules(priv);
}
#define mlx5e_for_each_hash_node(hn, tmp, hash, i) \
for (i = 0; i < MLX5E_L2_ADDR_HASH_SIZE; i++) \
hlist_for_each_entry_safe(hn, tmp, &hash[i], hlist)
static void mlx5e_execute_l2_action(struct mlx5e_priv *priv,
struct mlx5e_l2_hash_node *hn)
{
u8 action = hn->action;
u8 mac_addr[ETH_ALEN];
int l2_err = 0;
ether_addr_copy(mac_addr, hn->ai.addr);
switch (action) {
case MLX5E_ACTION_ADD:
mlx5e_add_l2_flow_rule(priv, &hn->ai, MLX5E_FULLMATCH);
if (!is_multicast_ether_addr(mac_addr)) {
l2_err = mlx5_mpfs_add_mac(priv->mdev, mac_addr);
hn->mpfs = !l2_err;
}
hn->action = MLX5E_ACTION_NONE;
break;
case MLX5E_ACTION_DEL:
if (!is_multicast_ether_addr(mac_addr) && hn->mpfs)
l2_err = mlx5_mpfs_del_mac(priv->mdev, mac_addr);
mlx5e_del_l2_flow_rule(priv, &hn->ai);
mlx5e_del_l2_from_hash(hn);
break;
}
if (l2_err)
netdev_warn(priv->netdev, "MPFS, failed to %s mac %pM, err(%d)\n",
action == MLX5E_ACTION_ADD ? "add" : "del", mac_addr, l2_err);
}
static void mlx5e_sync_netdev_addr(struct mlx5e_priv *priv)
{
struct net_device *netdev = priv->netdev;
struct netdev_hw_addr *ha;
netif_addr_lock_bh(netdev);
mlx5e_add_l2_to_hash(priv->fs.l2.netdev_uc,
priv->netdev->dev_addr);
netdev_for_each_uc_addr(ha, netdev)
mlx5e_add_l2_to_hash(priv->fs.l2.netdev_uc, ha->addr);
netdev_for_each_mc_addr(ha, netdev)
mlx5e_add_l2_to_hash(priv->fs.l2.netdev_mc, ha->addr);
netif_addr_unlock_bh(netdev);
}
static void mlx5e_fill_addr_array(struct mlx5e_priv *priv, int list_type,
u8 addr_array[][ETH_ALEN], int size)
{
bool is_uc = (list_type == MLX5_NVPRT_LIST_TYPE_UC);
struct net_device *ndev = priv->netdev;
struct mlx5e_l2_hash_node *hn;
struct hlist_head *addr_list;
struct hlist_node *tmp;
int i = 0;
int hi;
addr_list = is_uc ? priv->fs.l2.netdev_uc : priv->fs.l2.netdev_mc;
if (is_uc) /* Make sure our own address is pushed first */
ether_addr_copy(addr_array[i++], ndev->dev_addr);
else if (priv->fs.l2.broadcast_enabled)
ether_addr_copy(addr_array[i++], ndev->broadcast);
mlx5e_for_each_hash_node(hn, tmp, addr_list, hi) {
if (ether_addr_equal(ndev->dev_addr, hn->ai.addr))
continue;
if (i >= size)
break;
ether_addr_copy(addr_array[i++], hn->ai.addr);
}
}
static void mlx5e_vport_context_update_addr_list(struct mlx5e_priv *priv,
int list_type)
{
bool is_uc = (list_type == MLX5_NVPRT_LIST_TYPE_UC);
struct mlx5e_l2_hash_node *hn;
u8 (*addr_array)[ETH_ALEN] = NULL;
struct hlist_head *addr_list;
struct hlist_node *tmp;
int max_size;
int size;
int err;
int hi;
size = is_uc ? 0 : (priv->fs.l2.broadcast_enabled ? 1 : 0);
max_size = is_uc ?
1 << MLX5_CAP_GEN(priv->mdev, log_max_current_uc_list) :
1 << MLX5_CAP_GEN(priv->mdev, log_max_current_mc_list);
addr_list = is_uc ? priv->fs.l2.netdev_uc : priv->fs.l2.netdev_mc;
mlx5e_for_each_hash_node(hn, tmp, addr_list, hi)
size++;
if (size > max_size) {
netdev_warn(priv->netdev,
"netdev %s list size (%d) > (%d) max vport list size, some addresses will be dropped\n",
is_uc ? "UC" : "MC", size, max_size);
size = max_size;
}
if (size) {
addr_array = kcalloc(size, ETH_ALEN, GFP_KERNEL);
if (!addr_array) {
err = -ENOMEM;
goto out;
}
mlx5e_fill_addr_array(priv, list_type, addr_array, size);
}
err = mlx5_modify_nic_vport_mac_list(priv->mdev, list_type, addr_array, size);
out:
if (err)
netdev_err(priv->netdev,
"Failed to modify vport %s list err(%d)\n",
is_uc ? "UC" : "MC", err);
kfree(addr_array);
}
static void mlx5e_vport_context_update(struct mlx5e_priv *priv)
{
struct mlx5e_l2_table *ea = &priv->fs.l2;
mlx5e_vport_context_update_addr_list(priv, MLX5_NVPRT_LIST_TYPE_UC);
mlx5e_vport_context_update_addr_list(priv, MLX5_NVPRT_LIST_TYPE_MC);
mlx5_modify_nic_vport_promisc(priv->mdev, 0,
ea->allmulti_enabled,
ea->promisc_enabled);
}
static void mlx5e_apply_netdev_addr(struct mlx5e_priv *priv)
{
struct mlx5e_l2_hash_node *hn;
struct hlist_node *tmp;
int i;
mlx5e_for_each_hash_node(hn, tmp, priv->fs.l2.netdev_uc, i)
mlx5e_execute_l2_action(priv, hn);
mlx5e_for_each_hash_node(hn, tmp, priv->fs.l2.netdev_mc, i)
mlx5e_execute_l2_action(priv, hn);
}
static void mlx5e_handle_netdev_addr(struct mlx5e_priv *priv)
{
struct mlx5e_l2_hash_node *hn;
struct hlist_node *tmp;
int i;
mlx5e_for_each_hash_node(hn, tmp, priv->fs.l2.netdev_uc, i)
hn->action = MLX5E_ACTION_DEL;
mlx5e_for_each_hash_node(hn, tmp, priv->fs.l2.netdev_mc, i)
hn->action = MLX5E_ACTION_DEL;
if (!test_bit(MLX5E_STATE_DESTROYING, &priv->state))
mlx5e_sync_netdev_addr(priv);
mlx5e_apply_netdev_addr(priv);
}
void mlx5e_set_rx_mode_work(struct work_struct *work)
{
struct mlx5e_priv *priv = container_of(work, struct mlx5e_priv,
set_rx_mode_work);
struct mlx5e_l2_table *ea = &priv->fs.l2;
struct net_device *ndev = priv->netdev;
bool rx_mode_enable = !test_bit(MLX5E_STATE_DESTROYING, &priv->state);
bool promisc_enabled = rx_mode_enable && (ndev->flags & IFF_PROMISC);
bool allmulti_enabled = rx_mode_enable && (ndev->flags & IFF_ALLMULTI);
bool broadcast_enabled = rx_mode_enable;
bool enable_promisc = !ea->promisc_enabled && promisc_enabled;
bool disable_promisc = ea->promisc_enabled && !promisc_enabled;
bool enable_allmulti = !ea->allmulti_enabled && allmulti_enabled;
bool disable_allmulti = ea->allmulti_enabled && !allmulti_enabled;
bool enable_broadcast = !ea->broadcast_enabled && broadcast_enabled;
bool disable_broadcast = ea->broadcast_enabled && !broadcast_enabled;
if (enable_promisc) {
if (!priv->channels.params.vlan_strip_disable)
netdev_warn_once(ndev,
"S-tagged traffic will be dropped while C-tag vlan stripping is enabled\n");
mlx5e_add_l2_flow_rule(priv, &ea->promisc, MLX5E_PROMISC);
if (!priv->fs.vlan.cvlan_filter_disabled)
mlx5e_add_any_vid_rules(priv);
}
if (enable_allmulti)
mlx5e_add_l2_flow_rule(priv, &ea->allmulti, MLX5E_ALLMULTI);
if (enable_broadcast)
mlx5e_add_l2_flow_rule(priv, &ea->broadcast, MLX5E_FULLMATCH);
mlx5e_handle_netdev_addr(priv);
if (disable_broadcast)
mlx5e_del_l2_flow_rule(priv, &ea->broadcast);
if (disable_allmulti)
mlx5e_del_l2_flow_rule(priv, &ea->allmulti);
if (disable_promisc) {
if (!priv->fs.vlan.cvlan_filter_disabled)
mlx5e_del_any_vid_rules(priv);
mlx5e_del_l2_flow_rule(priv, &ea->promisc);
}
ea->promisc_enabled = promisc_enabled;
ea->allmulti_enabled = allmulti_enabled;
ea->broadcast_enabled = broadcast_enabled;
mlx5e_vport_context_update(priv);
}
static void mlx5e_destroy_groups(struct mlx5e_flow_table *ft)
{
int i;
for (i = ft->num_groups - 1; i >= 0; i--) {
if (!IS_ERR_OR_NULL(ft->g[i]))
mlx5_destroy_flow_group(ft->g[i]);
ft->g[i] = NULL;
}
ft->num_groups = 0;
}
void mlx5e_init_l2_addr(struct mlx5e_priv *priv)
{
ether_addr_copy(priv->fs.l2.broadcast.addr, priv->netdev->broadcast);
}
void mlx5e_destroy_flow_table(struct mlx5e_flow_table *ft)
{
mlx5e_destroy_groups(ft);
kfree(ft->g);
mlx5_destroy_flow_table(ft->t);
ft->t = NULL;
}
static void mlx5e_cleanup_ttc_rules(struct mlx5e_ttc_table *ttc)
{
int i;
for (i = 0; i < MLX5E_NUM_TT; i++) {
if (!IS_ERR_OR_NULL(ttc->rules[i].rule)) {
mlx5_del_flow_rules(ttc->rules[i].rule);
ttc->rules[i].rule = NULL;
}
}
for (i = 0; i < MLX5E_NUM_TUNNEL_TT; i++) {
if (!IS_ERR_OR_NULL(ttc->tunnel_rules[i])) {
mlx5_del_flow_rules(ttc->tunnel_rules[i]);
ttc->tunnel_rules[i] = NULL;
}
}
}
struct mlx5e_etype_proto {
u16 etype;
u8 proto;
};
static struct mlx5e_etype_proto ttc_rules[] = {
[MLX5E_TT_IPV4_TCP] = {
.etype = ETH_P_IP,
.proto = IPPROTO_TCP,
},
[MLX5E_TT_IPV6_TCP] = {
.etype = ETH_P_IPV6,
.proto = IPPROTO_TCP,
},
[MLX5E_TT_IPV4_UDP] = {
.etype = ETH_P_IP,
.proto = IPPROTO_UDP,
},
[MLX5E_TT_IPV6_UDP] = {
.etype = ETH_P_IPV6,
.proto = IPPROTO_UDP,
},
[MLX5E_TT_IPV4_IPSEC_AH] = {
.etype = ETH_P_IP,
.proto = IPPROTO_AH,
},
[MLX5E_TT_IPV6_IPSEC_AH] = {
.etype = ETH_P_IPV6,
.proto = IPPROTO_AH,
},
[MLX5E_TT_IPV4_IPSEC_ESP] = {
.etype = ETH_P_IP,
.proto = IPPROTO_ESP,
},
[MLX5E_TT_IPV6_IPSEC_ESP] = {
.etype = ETH_P_IPV6,
.proto = IPPROTO_ESP,
},
[MLX5E_TT_IPV4] = {
.etype = ETH_P_IP,
.proto = 0,
},
[MLX5E_TT_IPV6] = {
.etype = ETH_P_IPV6,
.proto = 0,
},
[MLX5E_TT_ANY] = {
.etype = 0,
.proto = 0,
},
};
static struct mlx5e_etype_proto ttc_tunnel_rules[] = {
[MLX5E_TT_IPV4_GRE] = {
.etype = ETH_P_IP,
.proto = IPPROTO_GRE,
},
[MLX5E_TT_IPV6_GRE] = {
.etype = ETH_P_IPV6,
.proto = IPPROTO_GRE,
},
[MLX5E_TT_IPV4_IPIP] = {
.etype = ETH_P_IP,
.proto = IPPROTO_IPIP,
},
[MLX5E_TT_IPV6_IPIP] = {
.etype = ETH_P_IPV6,
.proto = IPPROTO_IPIP,
},
[MLX5E_TT_IPV4_IPV6] = {
.etype = ETH_P_IP,
.proto = IPPROTO_IPV6,
},
[MLX5E_TT_IPV6_IPV6] = {
.etype = ETH_P_IPV6,
.proto = IPPROTO_IPV6,
},
};
bool mlx5e_tunnel_proto_supported(struct mlx5_core_dev *mdev, u8 proto_type)
{
switch (proto_type) {
case IPPROTO_GRE:
return MLX5_CAP_ETH(mdev, tunnel_stateless_gre);
case IPPROTO_IPIP:
case IPPROTO_IPV6:
return MLX5_CAP_ETH(mdev, tunnel_stateless_ip_over_ip);
default:
return false;
}
}
bool mlx5e_any_tunnel_proto_supported(struct mlx5_core_dev *mdev)
{
int tt;
for (tt = 0; tt < MLX5E_NUM_TUNNEL_TT; tt++) {
if (mlx5e_tunnel_proto_supported(mdev, ttc_tunnel_rules[tt].proto))
return true;
}
return false;
}
bool mlx5e_tunnel_inner_ft_supported(struct mlx5_core_dev *mdev)
{
return (mlx5e_any_tunnel_proto_supported(mdev) &&
MLX5_CAP_FLOWTABLE_NIC_RX(mdev, ft_field_support.inner_ip_version));
}
static u8 mlx5e_etype_to_ipv(u16 ethertype)
{
if (ethertype == ETH_P_IP)
return 4;
if (ethertype == ETH_P_IPV6)
return 6;
return 0;
}
static struct mlx5_flow_handle *
mlx5e_generate_ttc_rule(struct mlx5e_priv *priv,
struct mlx5_flow_table *ft,
struct mlx5_flow_destination *dest,
u16 etype,
u8 proto)
{
int match_ipv_outer = MLX5_CAP_FLOWTABLE_NIC_RX(priv->mdev, ft_field_support.outer_ip_version);
MLX5_DECLARE_FLOW_ACT(flow_act);
struct mlx5_flow_handle *rule;
struct mlx5_flow_spec *spec;
int err = 0;
u8 ipv;
spec = kvzalloc(sizeof(*spec), GFP_KERNEL);
if (!spec)
return ERR_PTR(-ENOMEM);
if (proto) {
spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.ip_protocol);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.ip_protocol, proto);
}
ipv = mlx5e_etype_to_ipv(etype);
if (match_ipv_outer && ipv) {
spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.ip_version);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.ip_version, ipv);
} else if (etype) {
spec->match_criteria_enable = MLX5_MATCH_OUTER_HEADERS;
MLX5_SET_TO_ONES(fte_match_param, spec->match_criteria, outer_headers.ethertype);
MLX5_SET(fte_match_param, spec->match_value, outer_headers.ethertype, etype);
}
rule = mlx5_add_flow_rules(ft, spec, &flow_act, dest, 1);
if (IS_ERR(rule)) {
err = PTR_ERR(rule);
netdev_err(priv->netdev, "%s: add rule failed\n", __func__);
}
kvfree(spec);
return err ? ERR_PTR(err) : rule;
}
static int mlx5e_generate_ttc_table_rules(struct mlx5e_priv *priv,
struct ttc_params *params,
struct mlx5e_ttc_table *ttc)
{
struct mlx5_flow_destination dest = {};
struct mlx5_flow_handle **trules;
struct mlx5e_ttc_rule *rules;
struct mlx5_flow_table *ft;
int tt;
int err;
ft = ttc->ft.t;
rules = ttc->rules;
dest.type = MLX5_FLOW_DESTINATION_TYPE_TIR;
for (tt = 0; tt < MLX5E_NUM_TT; tt++) {
struct mlx5e_ttc_rule *rule = &rules[tt];
if (tt == MLX5E_TT_ANY)
dest.tir_num = params->any_tt_tirn;
else
dest.tir_num = params->indir_tirn[tt];
rule->rule = mlx5e_generate_ttc_rule(priv, ft, &dest,
ttc_rules[tt].etype,
ttc_rules[tt].proto);
if (IS_ERR(rule->rule)) {
err = PTR_ERR(rule->rule);
rule->rule = NULL;
goto del_rules;
}
rule->default_dest = dest;
}
if (!params->inner_ttc || !mlx5e_tunnel_inner_ft_supported(priv->mdev))
return 0;
trules = ttc->tunnel_rules;
dest.type = MLX5_FLOW_DESTINATION_TYPE_FLOW_TABLE;
dest.ft = params->inner_ttc->ft.t;
for (tt = 0; tt < MLX5E_NUM_TUNNEL_TT; tt++) {
if (!mlx5e_tunnel_proto_supported(priv->mdev,
ttc_tunnel_rules[tt].proto))
continue;
trules[tt] = mlx5e_generate_ttc_rule(priv, ft, &dest,
ttc_tunnel_rules[tt].etype,
ttc_tunnel_rules[tt].proto);
if (IS_ERR(trules[tt])) {
err = PTR_ERR(trules[tt]);
trules[tt] = NULL;
goto del_rules;
}
}
return 0;
del_rules:
mlx5e_cleanup_ttc_rules(ttc);
return err;
}
static int mlx5e_create_ttc_table_groups(struct mlx5e_ttc_table *ttc,
bool use_ipv)
{
int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
struct mlx5e_flow_table *ft = &ttc->ft;
int ix = 0;
u32 *in;
int err;
u8 *mc;
ft->g = kcalloc(MLX5E_TTC_NUM_GROUPS,
sizeof(*ft->g), GFP_KERNEL);
if (!ft->g)
return -ENOMEM;
in = kvzalloc(inlen, GFP_KERNEL);
if (!in) {
kfree(ft->g);
ft->g = NULL;
return -ENOMEM;
}
/* L4 Group */
mc = MLX5_ADDR_OF(create_flow_group_in, in, match_criteria);
MLX5_SET_TO_ONES(fte_match_param, mc, outer_headers.ip_protocol);
if (use_ipv)
MLX5_SET_TO_ONES(fte_match_param, mc, outer_headers.ip_version);
else
MLX5_SET_TO_ONES(fte_match_param, mc, outer_headers.ethertype);
MLX5_SET_CFG(in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
MLX5_SET_CFG(in, start_flow_index, ix);
ix += MLX5E_TTC_GROUP1_SIZE;
MLX5_SET_CFG(in, end_flow_index, ix - 1);
ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
if (IS_ERR(ft->g[ft->num_groups]))
goto err;
ft->num_groups++;
/* L3 Group */
MLX5_SET(fte_match_param, mc, outer_headers.ip_protocol, 0);
MLX5_SET_CFG(in, start_flow_index, ix);
ix += MLX5E_TTC_GROUP2_SIZE;
MLX5_SET_CFG(in, end_flow_index, ix - 1);
ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
if (IS_ERR(ft->g[ft->num_groups]))
goto err;
ft->num_groups++;
/* Any Group */
memset(in, 0, inlen);
MLX5_SET_CFG(in, start_flow_index, ix);
ix += MLX5E_TTC_GROUP3_SIZE;
MLX5_SET_CFG(in, end_flow_index, ix - 1);
ft->g[ft->num_groups] = mlx5_create_flow_group(ft->t, in);
if (IS_ERR(ft->g[ft->num_groups]))
goto err;
ft->num_groups++;
kvfree(in);
return 0;
err:
err = PTR_ERR(ft->g[ft->num_groups]);
ft->g[ft->num_groups] = NULL;
kvfree(in);
return err;
}
static struct mlx5_flow_handle *
mlx5e_generate_inner_ttc_rule(struct mlx5e_priv *priv,
struct mlx5_flow_table *ft,
struct mlx5_flow_destination *dest,
u16 etype, u8 proto)
{
MLX5_DECLARE_FLOW_ACT(flow_act);
struct mlx5_flow_handle *rule;
struct mlx5_flow_spec *spec;
int err = 0;