/*
* 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/etherdevice.h>
#include <linux/mlx5/driver.h>
#include <linux/mlx5/mlx5_ifc.h>
#include <linux/mlx5/vport.h>
#include <linux/mlx5/fs.h>
#include "mlx5_core.h"
#include "eswitch.h"
#define UPLINK_VPORT 0xFFFF
#define MLX5_DEBUG_ESWITCH_MASK BIT(3)
#define esw_info(dev, format, ...) \
pr_info("(%s): E-Switch: " format, (dev)->priv.name, ##__VA_ARGS__)
#define esw_warn(dev, format, ...) \
pr_warn("(%s): E-Switch: " format, (dev)->priv.name, ##__VA_ARGS__)
#define esw_debug(dev, format, ...) \
mlx5_core_dbg_mask(dev, MLX5_DEBUG_ESWITCH_MASK, format, ##__VA_ARGS__)
enum {
MLX5_ACTION_NONE = 0,
MLX5_ACTION_ADD = 1,
MLX5_ACTION_DEL = 2,
};
/* E-Switch UC L2 table hash node */
struct esw_uc_addr {
struct l2addr_node node;
u32 table_index;
u32 vport;
};
/* E-Switch MC FDB table hash node */
struct esw_mc_addr { /* SRIOV only */
struct l2addr_node node;
struct mlx5_flow_rule *uplink_rule; /* Forward to uplink rule */
u32 refcnt;
};
/* Vport UC/MC hash node */
struct vport_addr {
struct l2addr_node node;
u8 action;
u32 vport;
struct mlx5_flow_rule *flow_rule; /* SRIOV only */
/* A flag indicating that mac was added due to mc promiscuous vport */
bool mc_promisc;
};
enum {
UC_ADDR_CHANGE = BIT(0),
MC_ADDR_CHANGE = BIT(1),
PROMISC_CHANGE = BIT(3),
};
/* Vport context events */
#define SRIOV_VPORT_EVENTS (UC_ADDR_CHANGE | \
MC_ADDR_CHANGE | \
PROMISC_CHANGE)
static int arm_vport_context_events_cmd(struct mlx5_core_dev *dev, u16 vport,
u32 events_mask)
{
int in[MLX5_ST_SZ_DW(modify_nic_vport_context_in)];
int out[MLX5_ST_SZ_DW(modify_nic_vport_context_out)];
void *nic_vport_ctx;
int err;
memset(out, 0, sizeof(out));
memset(in, 0, sizeof(in));
MLX5_SET(modify_nic_vport_context_in, in,
opcode, MLX5_CMD_OP_MODIFY_NIC_VPORT_CONTEXT);
MLX5_SET(modify_nic_vport_context_in, in, field_select.change_event, 1);
MLX5_SET(modify_nic_vport_context_in, in, vport_number, vport);
if (vport)
MLX5_SET(modify_nic_vport_context_in, in, other_vport, 1);
nic_vport_ctx = MLX5_ADDR_OF(modify_nic_vport_context_in,
in, nic_vport_context);
MLX5_SET(nic_vport_context, nic_vport_ctx, arm_change_event, 1);
if (events_mask & UC_ADDR_CHANGE)
MLX5_SET(nic_vport_context, nic_vport_ctx,
event_on_uc_address_change, 1);
if (events_mask & MC_ADDR_CHANGE)
MLX5_SET(nic_vport_context, nic_vport_ctx,
event_on_mc_address_change, 1);
if (events_mask & PROMISC_CHANGE)
MLX5_SET(nic_vport_context, nic_vport_ctx,
event_on_promisc_change, 1);
err = mlx5_cmd_exec(dev, in, sizeof(in), out, sizeof(out));
if (err)
goto ex;
err = mlx5_cmd_status_to_err_v2(out);
if (err)
goto ex;
return 0;
ex:
return err;
}
/* E-Switch vport context HW commands */
static int query_esw_vport_context_cmd(struct mlx5_core_dev *mdev, u32 vport,
u32 *out, int outlen)
{
u32 in[MLX5_ST_SZ_DW(query_esw_vport_context_in)];
memset(in, 0, sizeof(in));
MLX5_SET(query_nic_vport_context_in, in, opcode,
MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT);
MLX5_SET(query_esw_vport_context_in, in, vport_number, vport);
if (vport)
MLX5_SET(query_esw_vport_context_in, in, other_vport, 1);
return mlx5_cmd_exec_check_status(mdev, in, sizeof(in), out, outlen);
}
static int query_esw_vport_cvlan(struct mlx5_core_dev *dev, u32 vport,
u16 *vlan, u8 *qos)
{
u32 out[MLX5_ST_SZ_DW(query_esw_vport_context_out)];
int err;
bool cvlan_strip;
bool cvlan_insert;
memset(out, 0, sizeof(out));
*vlan = 0;
*qos = 0;
if (!MLX5_CAP_ESW(dev, vport_cvlan_strip) ||
!MLX5_CAP_ESW(dev, vport_cvlan_insert_if_not_exist))
return -ENOTSUPP;
err = query_esw_vport_context_cmd(dev, vport, out, sizeof(out));
if (err)
goto out;
cvlan_strip = MLX5_GET(query_esw_vport_context_out, out,
esw_vport_context.vport_cvlan_strip);
cvlan_insert = MLX5_GET(query_esw_vport_context_out, out,
esw_vport_context.vport_cvlan_insert);
if (cvlan_strip || cvlan_insert) {
*vlan = MLX5_GET(query_esw_vport_context_out, out,
esw_vport_context.cvlan_id);
*qos = MLX5_GET(query_esw_vport_context_out, out,
esw_vport_context.cvlan_pcp);
}
esw_debug(dev, "Query Vport[%d] cvlan: VLAN %d qos=%d\n",
vport, *vlan, *qos);
out:
return err;
}
static int modify_esw_vport_context_cmd(struct mlx5_core_dev *dev, u16 vport,
void *in, int inlen)
{
u32 out[MLX5_ST_SZ_DW(modify_esw_vport_context_out)];
memset(out, 0, sizeof(out));
MLX5_SET(modify_esw_vport_context_in, in, vport_number, vport);
if (vport)
MLX5_SET(modify_esw_vport_context_in, in, other_vport, 1);
MLX5_SET(modify_esw_vport_context_in, in, opcode,
MLX5_CMD_OP_MODIFY_ESW_VPORT_CONTEXT);
return mlx5_cmd_exec_check_status(dev, in, inlen,
out, sizeof(out));
}
static int modify_esw_vport_cvlan(struct mlx5_core_dev *dev, u32 vport,
u16 vlan, u8 qos, bool set)
{
u32 in[MLX5_ST_SZ_DW(modify_esw_vport_context_in)];
memset(in, 0, sizeof(in));
if (!MLX5_CAP_ESW(dev, vport_cvlan_strip) ||
!MLX5_CAP_ESW(dev, vport_cvlan_insert_if_not_exist))
return -ENOTSUPP;
esw_debug(dev, "Set Vport[%d] VLAN %d qos %d set=%d\n",
vport, vlan, qos, set);
if (set) {
MLX5_SET(modify_esw_vport_context_in, in,
esw_vport_context.vport_cvlan_strip, 1);
/* insert only if no vlan in packet */
MLX5_SET(modify_esw_vport_context_in, in,
esw_vport_context.vport_cvlan_insert, 1);
MLX5_SET(modify_esw_vport_context_in, in,
esw_vport_context.cvlan_pcp, qos);
MLX5_SET(modify_esw_vport_context_in, in,
esw_vport_context.cvlan_id, vlan);
}
MLX5_SET(modify_esw_vport_context_in, in,
field_select.vport_cvlan_strip, 1);
MLX5_SET(modify_esw_vport_context_in, in,
field_select.vport_cvlan_insert, 1);
return modify_esw_vport_context_cmd(dev, vport, in, sizeof(in));
}
/* HW L2 Table (MPFS) management */
static int set_l2_table_entry_cmd(struct mlx5_core_dev *dev, u32 index,
u8 *mac, u8 vlan_valid, u16 vlan)
{
u32 in[MLX5_ST_SZ_DW(set_l2_table_entry_in)];
u32 out[MLX5_ST_SZ_DW(set_l2_table_entry_out)];
u8 *in_mac_addr;
memset(in, 0, sizeof(in));
memset(out, 0, sizeof(out));
MLX5_SET(set_l2_table_entry_in, in, opcode,
MLX5_CMD_OP_SET_L2_TABLE_ENTRY);
MLX5_SET(set_l2_table_entry_in, in, table_index, index);
MLX5_SET(set_l2_table_entry_in, in, vlan_valid, vlan_valid);
MLX5_SET(set_l2_table_entry_in, in, vlan, vlan);
in_mac_addr = MLX5_ADDR_OF(set_l2_table_entry_in, in, mac_address);
ether_addr_copy(&in_mac_addr[2], mac);
return mlx5_cmd_exec_check_status(dev, in, sizeof(in),
out, sizeof(out));
}
static int del_l2_table_entry_cmd(struct mlx5_core_dev *dev, u32 index)
{
u32 in[MLX5_ST_SZ_DW(delete_l2_table_entry_in)];
u32 out[MLX5_ST_SZ_DW(delete_l2_table_entry_out)];
memset(in, 0, sizeof(in));
memset(out, 0, sizeof(out));
MLX5_SET(delete_l2_table_entry_in, in, opcode,
MLX5_CMD_OP_DELETE_L2_TABLE_ENTRY);
MLX5_SET(delete_l2_table_entry_in, in, table_index, index);
return mlx5_cmd_exec_check_status(dev, in, sizeof(in),
out, sizeof(out));
}
static int alloc_l2_table_index(struct mlx5_l2_table *l2_table, u32 *ix)
{
int err = 0;
*ix = find_first_zero_bit(l2_table->bitmap, l2_table->size);
if (*ix >= l2_table->size)
err = -ENOSPC;
else
__set_bit(*ix, l2_table->bitmap);
return err;
}
static void free_l2_table_index(struct mlx5_l2_table *l2_table, u32 ix)
{
__clear_bit(ix, l2_table->bitmap);
}
static int set_l2_table_entry(struct mlx5_core_dev *dev, u8 *mac,
u8 vlan_valid, u16 vlan,
u32 *index)
{
struct mlx5_l2_table *l2_table = &dev->priv.eswitch->l2_table;
int err;
err = alloc_l2_table_index(l2_table, index);
if (err)
return err;
err = set_l2_table_entry_cmd(dev, *index, mac, vlan_valid, vlan);
if (err)
free_l2_table_index(l2_table, *index);
return err;
}
static void del_l2_table_entry(struct mlx5_core_dev *dev, u32 index)
{
struct mlx5_l2_table *l2_table = &dev->priv.eswitch->l2_table;
del_l2_table_entry_cmd(dev, index);
free_l2_table_index(l2_table, index);
}
/* E-Switch FDB */
static struct mlx5_flow_rule *
__esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u32 vport, bool rx_rule,
u8 mac_c[ETH_ALEN], u8 mac_v[ETH_ALEN])
{
int match_header = (is_zero_ether_addr(mac_c) ? 0 :
MLX5_MATCH_OUTER_HEADERS);
struct mlx5_flow_rule *flow_rule = NULL;
struct mlx5_flow_destination dest;
void *mv_misc = NULL;
void *mc_misc = NULL;
u8 *dmac_v = NULL;
u8 *dmac_c = NULL;
u32 *match_v;
u32 *match_c;
if (rx_rule)
match_header |= MLX5_MATCH_MISC_PARAMETERS;
match_v = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL);
match_c = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL);
if (!match_v || !match_c) {
pr_warn("FDB: Failed to alloc match parameters\n");
goto out;
}
dmac_v = MLX5_ADDR_OF(fte_match_param, match_v,
outer_headers.dmac_47_16);
dmac_c = MLX5_ADDR_OF(fte_match_param, match_c,
outer_headers.dmac_47_16);
if (match_header & MLX5_MATCH_OUTER_HEADERS) {
ether_addr_copy(dmac_v, mac_v);
ether_addr_copy(dmac_c, mac_c);
}
if (match_header & MLX5_MATCH_MISC_PARAMETERS) {
mv_misc = MLX5_ADDR_OF(fte_match_param, match_v, misc_parameters);
mc_misc = MLX5_ADDR_OF(fte_match_param, match_c, misc_parameters);
MLX5_SET(fte_match_set_misc, mv_misc, source_port, UPLINK_VPORT);
MLX5_SET_TO_ONES(fte_match_set_misc, mc_misc, source_port);
}
dest.type = MLX5_FLOW_DESTINATION_TYPE_VPORT;
dest.vport_num = vport;
esw_debug(esw->dev,
"\tFDB add rule dmac_v(%pM) dmac_c(%pM) -> vport(%d)\n",
dmac_v, dmac_c, vport);
flow_rule =
mlx5_add_flow_rule(esw->fdb_table.fdb,
match_header,
match_c,
match_v,
MLX5_FLOW_CONTEXT_ACTION_FWD_DEST,
0, &dest);
if (IS_ERR(flow_rule)) {
pr_warn(
"FDB: Failed to add flow rule: dmac_v(%pM) dmac_c(%pM) -> vport(%d), err(%ld)\n",
dmac_v, dmac_c, vport, PTR_ERR(flow_rule));
flow_rule = NULL;
}
out:
kfree(match_v);
kfree(match_c);
return flow_rule;
}
static struct mlx5_flow_rule *
esw_fdb_set_vport_rule(struct mlx5_eswitch *esw, u8 mac[ETH_ALEN], u32 vport)
{
u8 mac_c[ETH_ALEN];
eth_broadcast_addr(mac_c);
return __esw_fdb_set_vport_rule(esw, vport, false, mac_c, mac);
}
static struct mlx5_flow_rule *
esw_fdb_set_vport_allmulti_rule(struct mlx5_eswitch *esw, u32 vport)
{
u8 mac_c[ETH_ALEN];
u8 mac_v[ETH_ALEN];
eth_zero_addr(mac_c);
eth_zero_addr(mac_v);
mac_c[0] = 0x01;
mac_v[0] = 0x01;
return __esw_fdb_set_vport_rule(esw, vport, false, mac_c, mac_v);
}
static struct mlx5_flow_rule *
esw_fdb_set_vport_promisc_rule(struct mlx5_eswitch *esw, u32 vport)
{
u8 mac_c[ETH_ALEN];
u8 mac_v[ETH_ALEN];
eth_zero_addr(mac_c);
eth_zero_addr(mac_v);
return __esw_fdb_set_vport_rule(esw, vport, true, mac_c, mac_v);
}
static int esw_create_fdb_table(struct mlx5_eswitch *esw, int nvports)
{
int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
struct mlx5_core_dev *dev = esw->dev;
struct mlx5_flow_namespace *root_ns;
struct mlx5_flow_table *fdb;
struct mlx5_flow_group *g;
void *match_criteria;
int table_size;
u32 *flow_group_in;
u8 *dmac;
int err = 0;
esw_debug(dev, "Create FDB log_max_size(%d)\n",
MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));
root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_FDB);
if (!root_ns) {
esw_warn(dev, "Failed to get FDB flow namespace\n");
return -ENOMEM;
}
flow_group_in = mlx5_vzalloc(inlen);
if (!flow_group_in)
return -ENOMEM;
memset(flow_group_in, 0, inlen);
table_size = BIT(MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size));
fdb = mlx5_create_flow_table(root_ns, 0, table_size, 0);
if (IS_ERR(fdb)) {
err = PTR_ERR(fdb);
esw_warn(dev, "Failed to create FDB Table err %d\n", err);
goto out;
}
esw->fdb_table.fdb = fdb;
/* Addresses group : Full match unicast/multicast addresses */
MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
MLX5_MATCH_OUTER_HEADERS);
match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria);
dmac = MLX5_ADDR_OF(fte_match_param, match_criteria, outer_headers.dmac_47_16);
MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
/* Preserve 2 entries for allmulti and promisc rules*/
MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, table_size - 3);
eth_broadcast_addr(dmac);
g = mlx5_create_flow_group(fdb, flow_group_in);
if (IS_ERR(g)) {
err = PTR_ERR(g);
esw_warn(dev, "Failed to create flow group err(%d)\n", err);
goto out;
}
esw->fdb_table.addr_grp = g;
/* Allmulti group : One rule that forwards any mcast traffic */
MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
MLX5_MATCH_OUTER_HEADERS);
MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, table_size - 2);
MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, table_size - 2);
eth_zero_addr(dmac);
dmac[0] = 0x01;
g = mlx5_create_flow_group(fdb, flow_group_in);
if (IS_ERR(g)) {
err = PTR_ERR(g);
esw_warn(dev, "Failed to create allmulti flow group err(%d)\n", err);
goto out;
}
esw->fdb_table.allmulti_grp = g;
/* Promiscuous group :
* One rule that forward all unmatched traffic from previous groups
*/
eth_zero_addr(dmac);
MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable,
MLX5_MATCH_MISC_PARAMETERS);
MLX5_SET_TO_ONES(fte_match_param, match_criteria, misc_parameters.source_port);
MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, table_size - 1);
MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, table_size - 1);
g = mlx5_create_flow_group(fdb, flow_group_in);
if (IS_ERR(g)) {
err = PTR_ERR(g);
esw_warn(dev, "Failed to create promisc flow group err(%d)\n", err);
goto out;
}
esw->fdb_table.promisc_grp = g;
out:
if (err) {
if (!IS_ERR_OR_NULL(esw->fdb_table.allmulti_grp)) {
mlx5_destroy_flow_group(esw->fdb_table.allmulti_grp);
esw->fdb_table.allmulti_grp = NULL;
}
if (!IS_ERR_OR_NULL(esw->fdb_table.addr_grp)) {
mlx5_destroy_flow_group(esw->fdb_table.addr_grp);
esw->fdb_table.addr_grp = NULL;
}
if (!IS_ERR_OR_NULL(esw->fdb_table.fdb)) {
mlx5_destroy_flow_table(esw->fdb_table.fdb);
esw->fdb_table.fdb = NULL;
}
}
kvfree(flow_group_in);
return err;
}
static void esw_destroy_fdb_table(struct mlx5_eswitch *esw)
{
if (!esw->fdb_table.fdb)
return;
esw_debug(esw->dev, "Destroy FDB Table\n");
mlx5_destroy_flow_group(esw->fdb_table.promisc_grp);
mlx5_destroy_flow_group(esw->fdb_table.allmulti_grp);
mlx5_destroy_flow_group(esw->fdb_table.addr_grp);
mlx5_destroy_flow_table(esw->fdb_table.fdb);
esw->fdb_table.fdb = NULL;
esw->fdb_table.addr_grp = NULL;
esw->fdb_table.allmulti_grp = NULL;
esw->fdb_table.promisc_grp = NULL;
}
/* E-Switch vport UC/MC lists management */
typedef int (*vport_addr_action)(struct mlx5_eswitch *esw,
struct vport_addr *vaddr);
static int esw_add_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
struct hlist_head *hash = esw->l2_table.l2_hash;
struct esw_uc_addr *esw_uc;
u8 *mac = vaddr->node.addr;
u32 vport = vaddr->vport;
int err;
esw_uc = l2addr_hash_find(hash, mac, struct esw_uc_addr);
if (esw_uc) {
esw_warn(esw->dev,
"Failed to set L2 mac(%pM) for vport(%d), mac is already in use by vport(%d)\n",
mac, vport, esw_uc->vport);
return -EEXIST;
}
esw_uc = l2addr_hash_add(hash, mac, struct esw_uc_addr, GFP_KERNEL);
if (!esw_uc)
return -ENOMEM;
esw_uc->vport = vport;
err = set_l2_table_entry(esw->dev, mac, 0, 0, &esw_uc->table_index);
if (err)
goto abort;
if (esw->fdb_table.fdb) /* SRIOV is enabled: Forward UC MAC to vport */
vaddr->flow_rule = esw_fdb_set_vport_rule(esw, mac, vport);
esw_debug(esw->dev, "\tADDED UC MAC: vport[%d] %pM index:%d fr(%p)\n",
vport, mac, esw_uc->table_index, vaddr->flow_rule);
return err;
abort:
l2addr_hash_del(esw_uc);
return err;
}
static int esw_del_uc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
struct hlist_head *hash = esw->l2_table.l2_hash;
struct esw_uc_addr *esw_uc;
u8 *mac = vaddr->node.addr;
u32 vport = vaddr->vport;
esw_uc = l2addr_hash_find(hash, mac, struct esw_uc_addr);
if (!esw_uc || esw_uc->vport != vport) {
esw_debug(esw->dev,
"MAC(%pM) doesn't belong to vport (%d)\n",
mac, vport);
return -EINVAL;
}
esw_debug(esw->dev, "\tDELETE UC MAC: vport[%d] %pM index:%d fr(%p)\n",
vport, mac, esw_uc->table_index, vaddr->flow_rule);
del_l2_table_entry(esw->dev, esw_uc->table_index);
if (vaddr->flow_rule)
mlx5_del_flow_rule(vaddr->flow_rule);
vaddr->flow_rule = NULL;
l2addr_hash_del(esw_uc);
return 0;
}
static void update_allmulti_vports(struct mlx5_eswitch *esw,
struct vport_addr *vaddr,
struct esw_mc_addr *esw_mc)
{
u8 *mac = vaddr->node.addr;
u32 vport_idx = 0;
for (vport_idx = 0; vport_idx < esw->total_vports; vport_idx++) {
struct mlx5_vport *vport = &esw->vports[vport_idx];
struct hlist_head *vport_hash = vport->mc_list;
struct vport_addr *iter_vaddr =
l2addr_hash_find(vport_hash,
mac,
struct vport_addr);
if (IS_ERR_OR_NULL(vport->allmulti_rule) ||
vaddr->vport == vport_idx)
continue;
switch (vaddr->action) {
case MLX5_ACTION_ADD:
if (iter_vaddr)
continue;
iter_vaddr = l2addr_hash_add(vport_hash, mac,
struct vport_addr,
GFP_KERNEL);
if (!iter_vaddr) {
esw_warn(esw->dev,
"ALL-MULTI: Failed to add MAC(%pM) to vport[%d] DB\n",
mac, vport_idx);
continue;
}
iter_vaddr->vport = vport_idx;
iter_vaddr->flow_rule =
esw_fdb_set_vport_rule(esw,
mac,
vport_idx);
iter_vaddr->mc_promisc = true;
break;
case MLX5_ACTION_DEL:
if (!iter_vaddr)
continue;
mlx5_del_flow_rule(iter_vaddr->flow_rule);
l2addr_hash_del(iter_vaddr);
break;
}
}
}
static int esw_add_mc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
struct hlist_head *hash = esw->mc_table;
struct esw_mc_addr *esw_mc;
u8 *mac = vaddr->node.addr;
u32 vport = vaddr->vport;
if (!esw->fdb_table.fdb)
return 0;
esw_mc = l2addr_hash_find(hash, mac, struct esw_mc_addr);
if (esw_mc)
goto add;
esw_mc = l2addr_hash_add(hash, mac, struct esw_mc_addr, GFP_KERNEL);
if (!esw_mc)
return -ENOMEM;
esw_mc->uplink_rule = /* Forward MC MAC to Uplink */
esw_fdb_set_vport_rule(esw, mac, UPLINK_VPORT);
/* Add this multicast mac to all the mc promiscuous vports */
update_allmulti_vports(esw, vaddr, esw_mc);
add:
/* If the multicast mac is added as a result of mc promiscuous vport,
* don't increment the multicast ref count
*/
if (!vaddr->mc_promisc)
esw_mc->refcnt++;
/* Forward MC MAC to vport */
vaddr->flow_rule = esw_fdb_set_vport_rule(esw, mac, vport);
esw_debug(esw->dev,
"\tADDED MC MAC: vport[%d] %pM fr(%p) refcnt(%d) uplinkfr(%p)\n",
vport, mac, vaddr->flow_rule,
esw_mc->refcnt, esw_mc->uplink_rule);
return 0;
}
static int esw_del_mc_addr(struct mlx5_eswitch *esw, struct vport_addr *vaddr)
{
struct hlist_head *hash = esw->mc_table;
struct esw_mc_addr *esw_mc;
u8 *mac = vaddr->node.addr;
u32 vport = vaddr->vport;
if (!esw->fdb_table.fdb)
return 0;
esw_mc = l2addr_hash_find(hash, mac, struct esw_mc_addr);
if (!esw_mc) {
esw_warn(esw->dev,
"Failed to find eswitch MC addr for MAC(%pM) vport(%d)",
mac, vport);
return -EINVAL;
}
esw_debug(esw->dev,
"\tDELETE MC MAC: vport[%d] %pM fr(%p) refcnt(%d) uplinkfr(%p)\n",
vport, mac, vaddr->flow_rule, esw_mc->refcnt,
esw_mc->uplink_rule);
if (vaddr->flow_rule)
mlx5_del_flow_rule(vaddr->flow_rule);
vaddr->flow_rule = NULL;
/* If the multicast mac is added as a result of mc promiscuous vport,
* don't decrement the multicast ref count.
*/
if (vaddr->mc_promisc || (--esw_mc->refcnt > 0))
return 0;
/* Remove this multicast mac from all the mc promiscuous vports */
update_allmulti_vports(esw, vaddr, esw_mc);
if (esw_mc->uplink_rule)
mlx5_del_flow_rule(esw_mc->uplink_rule);
l2addr_hash_del(esw_mc);
return 0;
}
/* Apply vport UC/MC list to HW l2 table and FDB table */
static void esw_apply_vport_addr_list(struct mlx5_eswitch *esw,
u32 vport_num, int list_type)
{
struct mlx5_vport *vport = &esw->vports[vport_num];
bool is_uc = list_type == MLX5_NVPRT_LIST_TYPE_UC;
vport_addr_action vport_addr_add;
vport_addr_action vport_addr_del;
struct vport_addr *addr;
struct l2addr_node *node;
struct hlist_head *hash;
struct hlist_node *tmp;
int hi;
vport_addr_add = is_uc ? esw_add_uc_addr :
esw_add_mc_addr;
vport_addr_del = is_uc ? esw_del_uc_addr :
esw_del_mc_addr;
hash = is_uc ? vport->uc_list : vport->mc_list;
for_each_l2hash_node(node, tmp, hash, hi) {
addr = container_of(node, struct vport_addr, node);
switch (addr->action) {
case MLX5_ACTION_ADD:
vport_addr_add(esw, addr);
addr->action = MLX5_ACTION_NONE;
break;
case MLX5_ACTION_DEL:
vport_addr_del(esw, addr);
l2addr_hash_del(addr);
break;
}
}
}
/* Sync vport UC/MC list from vport context */
static void esw_update_vport_addr_list(struct mlx5_eswitch *esw,
u32 vport_num, int list_type)
{
struct mlx5_vport *vport = &esw->vports[vport_num];
bool is_uc = list_type == MLX5_NVPRT_LIST_TYPE_UC;
u8 (*mac_list)[ETH_ALEN];
struct l2addr_node *node;
struct vport_addr *addr;
struct hlist_head *hash;
struct hlist_node *tmp;
int size;
int err;
int hi;
int i;
size = is_uc ? MLX5_MAX_UC_PER_VPORT(esw->dev) :
MLX5_MAX_MC_PER_VPORT(esw->dev);
mac_list = kcalloc(size, ETH_ALEN, GFP_KERNEL);
if (!mac_list)
return;
hash = is_uc ? vport->uc_list : vport->mc_list;
for_each_l2hash_node(node, tmp, hash, hi) {
addr = container_of(node, struct vport_addr, node);
addr->action = MLX5_ACTION_DEL;
}
if (!vport->enabled)
goto out;
err = mlx5_query_nic_vport_mac_list(esw->dev, vport_num, list_type,
mac_list, &size);
if (err)
goto out;
esw_debug(esw->dev, "vport[%d] context update %s list size (%d)\n",
vport_num, is_uc ? "UC" : "MC", size);
for (i = 0; i < size; i++) {
if (is_uc && !is_valid_ether_addr(mac_list[i]))
continue;
if (!is_uc && !is_multicast_ether_addr(mac_list[i]))
continue;
addr = l2addr_hash_find(hash, mac_list[i], struct vport_addr);
if (addr) {
addr->action = MLX5_ACTION_NONE;
/* If this mac was previously added because of allmulti
* promiscuous rx mode, its now converted to be original
* vport mac.
*/
if (addr->mc_promisc) {
struct esw_mc_addr *esw_mc =
l2addr_hash_find(esw->mc_table,
mac_list[i],
struct esw_mc_addr);
if (!esw_mc) {
esw_warn(esw->dev,
"Failed to MAC(%pM) in mcast DB\n",
mac_list[i]);
continue;
}
esw_mc->refcnt++;
addr->mc_promisc = false;
}
continue;
}
addr = l2addr_hash_add(hash, mac_list[i], struct vport_addr,
GFP_KERNEL);
if (!addr) {
esw_warn(esw->dev,
"Failed to add MAC(%pM) to vport[%d] DB\n",
mac_list[i], vport_num);
continue;
}
addr->vport = vport_num;
addr->action = MLX5_ACTION_ADD;
}
out:
kfree(mac_list);
}
/* Sync vport UC/MC list from vport context
* Must be called after esw_update_vport_addr_list
*/
static void esw_update_vport_mc_promisc(struct mlx5_eswitch *esw, u32 vport_num)
{
struct mlx5_vport *vport = &esw->vports[vport_num];
struct l2addr_node *node;
struct vport_addr *addr;
struct hlist_head *hash;
struct hlist_node *tmp;
int hi;
hash = vport->mc_list;
for_each_l2hash_node(node, tmp, esw->mc_table, hi) {
u8 *mac = node->addr;
addr = l2addr_hash_find(hash, mac, struct vport_addr);
if (addr) {
if (addr->action == MLX5_ACTION_DEL)
addr->action = MLX5_ACTION_NONE;
continue;
}
addr = l2addr_hash_add(hash, mac, struct vport_addr,
GFP_KERNEL);
if (!addr) {
esw_warn(esw->dev,
"Failed to add allmulti MAC(%pM) to vport[%d] DB\n",
mac, vport_num);
continue;
}
addr->vport = vport_num;
addr->action = MLX5_ACTION_ADD;
addr->mc_promisc = true;
}
}
/* Apply vport rx mode to HW FDB table */
static void esw_apply_vport_rx_mode(struct mlx5_eswitch *esw, u32 vport_num,
bool promisc, bool mc_promisc)
{
struct esw_mc_addr *allmulti_addr = esw->mc_promisc;
struct mlx5_vport *vport = &esw->vports[vport_num];
if (IS_ERR_OR_NULL(vport->allmulti_rule) != mc_promisc)
goto promisc;
if (mc_promisc) {
vport->allmulti_rule =
esw_fdb_set_vport_allmulti_rule(esw, vport_num);
if (!allmulti_addr->uplink_rule)
allmulti_addr->uplink_rule =
esw_fdb_set_vport_allmulti_rule(esw,
UPLINK_VPORT);
allmulti_addr->refcnt++;
} else if (vport->allmulti_rule) {
mlx5_del_flow_rule(vport->allmulti_rule);
vport->allmulti_rule = NULL;
if (--allmulti_addr->refcnt > 0)
goto promisc;
if (allmulti_addr->uplink_rule)
mlx5_del_flow_rule(allmulti_addr->uplink_rule);
allmulti_addr->uplink_rule = NULL;
}
promisc:
if (IS_ERR_OR_NULL(vport->promisc_rule) != promisc)
return;
if (promisc) {
vport->promisc_rule = esw_fdb_set_vport_promisc_rule(esw,
vport_num);
} else if (vport->promisc_rule) {
mlx5_del_flow_rule(vport->promisc_rule);
vport->promisc_rule = NULL;
}
}
/* Sync vport rx mode from vport context */
static void esw_update_vport_rx_mode(struct mlx5_eswitch *esw, u32 vport_num)
{
struct mlx5_vport *vport = &esw->vports[vport_num];
int promisc_all = 0;
int promisc_uc = 0;
int promisc_mc = 0;
int err;
err = mlx5_query_nic_vport_promisc(esw->dev,
vport_num,
&promisc_uc,
&promisc_mc,
&promisc_all);
if (err)
return;
esw_debug(esw->dev, "vport[%d] context update rx mode promisc_all=%d, all_multi=%d\n",
vport_num, promisc_all, promisc_mc);
if (!vport->trusted || !vport->enabled) {
promisc_uc = 0;
promisc_mc = 0;
promisc_all = 0;
}
esw_apply_vport_rx_mode(esw, vport_num, promisc_all,
(promisc_all || promisc_mc));
}
static void esw_vport_change_handle_locked(struct mlx5_vport *vport)
{
struct mlx5_core_dev *dev = vport->dev;
struct mlx5_eswitch *esw = dev->priv.eswitch;
u8 mac[ETH_ALEN];
mlx5_query_nic_vport_mac_address(dev, vport->vport, mac);
esw_debug(dev, "vport[%d] Context Changed: perm mac: %pM\n",
vport->vport, mac);
if (vport->enabled_events & UC_ADDR_CHANGE) {
esw_update_vport_addr_list(esw, vport->vport,
MLX5_NVPRT_LIST_TYPE_UC);
esw_apply_vport_addr_list(esw, vport->vport,
MLX5_NVPRT_LIST_TYPE_UC);
}
if (vport->enabled_events & MC_ADDR_CHANGE) {
esw_update_vport_addr_list(esw, vport->vport,
MLX5_NVPRT_LIST_TYPE_MC);
}
if (vport->enabled_events & PROMISC_CHANGE) {
esw_update_vport_rx_mode(esw, vport->vport);
if (!IS_ERR_OR_NULL(vport->allmulti_rule))
esw_update_vport_mc_promisc(esw, vport->vport);
}
if (vport->enabled_events & (PROMISC_CHANGE | MC_ADDR_CHANGE)) {
esw_apply_vport_addr_list(esw, vport->vport,
MLX5_NVPRT_LIST_TYPE_MC);
}
esw_debug(esw->dev, "vport[%d] Context Changed: Done\n", vport->vport);
if (vport->enabled)
arm_vport_context_events_cmd(dev, vport->vport,
vport->enabled_events);
}
static void esw_vport_change_handler(struct work_struct *work)
{
struct mlx5_vport *vport =
container_of(work, struct mlx5_vport, vport_change_handler);
struct mlx5_eswitch *esw = vport->dev->priv.eswitch;
mutex_lock(&esw->state_lock);
esw_vport_change_handle_locked(vport);
mutex_unlock(&esw->state_lock);
}
static void esw_vport_enable_egress_acl(struct mlx5_eswitch *esw,
struct mlx5_vport *vport)
{
int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
struct mlx5_flow_group *vlan_grp = NULL;
struct mlx5_flow_group *drop_grp = NULL;
struct mlx5_core_dev *dev = esw->dev;
struct mlx5_flow_namespace *root_ns;
struct mlx5_flow_table *acl;
void *match_criteria;
u32 *flow_group_in;
/* The egress acl table contains 2 rules:
* 1)Allow traffic with vlan_tag=vst_vlan_id
* 2)Drop all other traffic.
*/
int table_size = 2;
int err = 0;
if (!MLX5_CAP_ESW_EGRESS_ACL(dev, ft_support) ||
!IS_ERR_OR_NULL(vport->egress.acl))
return;
esw_debug(dev, "Create vport[%d] egress ACL log_max_size(%d)\n",
vport->vport, MLX5_CAP_ESW_EGRESS_ACL(dev, log_max_ft_size));
root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_ESW_EGRESS);
if (!root_ns) {
esw_warn(dev, "Failed to get E-Switch egress flow namespace\n");
return;
}
flow_group_in = mlx5_vzalloc(inlen);
if (!flow_group_in)
return;
acl = mlx5_create_vport_flow_table(root_ns, 0, table_size, 0, vport->vport);
if (IS_ERR(acl)) {
err = PTR_ERR(acl);
esw_warn(dev, "Failed to create E-Switch vport[%d] egress flow Table, err(%d)\n",
vport->vport, err);
goto out;
}
MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria);
MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.vlan_tag);
MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.first_vid);
MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 0);
vlan_grp = mlx5_create_flow_group(acl, flow_group_in);
if (IS_ERR(vlan_grp)) {
err = PTR_ERR(vlan_grp);
esw_warn(dev, "Failed to create E-Switch vport[%d] egress allowed vlans flow group, err(%d)\n",
vport->vport, err);
goto out;
}
memset(flow_group_in, 0, inlen);
MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 1);
MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 1);
drop_grp = mlx5_create_flow_group(acl, flow_group_in);
if (IS_ERR(drop_grp)) {
err = PTR_ERR(drop_grp);
esw_warn(dev, "Failed to create E-Switch vport[%d] egress drop flow group, err(%d)\n",
vport->vport, err);
goto out;
}
vport->egress.acl = acl;
vport->egress.drop_grp = drop_grp;
vport->egress.allowed_vlans_grp = vlan_grp;
out:
kvfree(flow_group_in);
if (err && !IS_ERR_OR_NULL(vlan_grp))
mlx5_destroy_flow_group(vlan_grp);
if (err && !IS_ERR_OR_NULL(acl))
mlx5_destroy_flow_table(acl);
}
static void esw_vport_cleanup_egress_rules(struct mlx5_eswitch *esw,
struct mlx5_vport *vport)
{
if (!IS_ERR_OR_NULL(vport->egress.allowed_vlan))
mlx5_del_flow_rule(vport->egress.allowed_vlan);
if (!IS_ERR_OR_NULL(vport->egress.drop_rule))
mlx5_del_flow_rule(vport->egress.drop_rule);
vport->egress.allowed_vlan = NULL;
vport->egress.drop_rule = NULL;
}
static void esw_vport_disable_egress_acl(struct mlx5_eswitch *esw,
struct mlx5_vport *vport)
{
if (IS_ERR_OR_NULL(vport->egress.acl))
return;
esw_debug(esw->dev, "Destroy vport[%d] E-Switch egress ACL\n", vport->vport);
esw_vport_cleanup_egress_rules(esw, vport);
mlx5_destroy_flow_group(vport->egress.allowed_vlans_grp);
mlx5_destroy_flow_group(vport->egress.drop_grp);
mlx5_destroy_flow_table(vport->egress.acl);
vport->egress.allowed_vlans_grp = NULL;
vport->egress.drop_grp = NULL;
vport->egress.acl = NULL;
}
static void esw_vport_enable_ingress_acl(struct mlx5_eswitch *esw,
struct mlx5_vport *vport)
{
int inlen = MLX5_ST_SZ_BYTES(create_flow_group_in);
struct mlx5_core_dev *dev = esw->dev;
struct mlx5_flow_namespace *root_ns;
struct mlx5_flow_table *acl;
struct mlx5_flow_group *g;
void *match_criteria;
u32 *flow_group_in;
/* The ingress acl table contains 4 groups
* (2 active rules at the same time -
* 1 allow rule from one of the first 3 groups.
* 1 drop rule from the last group):
* 1)Allow untagged traffic with smac=original mac.
* 2)Allow untagged traffic.
* 3)Allow traffic with smac=original mac.
* 4)Drop all other traffic.
*/
int table_size = 4;
int err = 0;
if (!MLX5_CAP_ESW_INGRESS_ACL(dev, ft_support) ||
!IS_ERR_OR_NULL(vport->ingress.acl))
return;
esw_debug(dev, "Create vport[%d] ingress ACL log_max_size(%d)\n",
vport->vport, MLX5_CAP_ESW_INGRESS_ACL(dev, log_max_ft_size));
root_ns = mlx5_get_flow_namespace(dev, MLX5_FLOW_NAMESPACE_ESW_INGRESS);
if (!root_ns) {
esw_warn(dev, "Failed to get E-Switch ingress flow namespace\n");
return;
}
flow_group_in = mlx5_vzalloc(inlen);
if (!flow_group_in)
return;
acl = mlx5_create_vport_flow_table(root_ns, 0, table_size, 0, vport->vport);
if (IS_ERR(acl)) {
err = PTR_ERR(acl);
esw_warn(dev, "Failed to create E-Switch vport[%d] ingress flow Table, err(%d)\n",
vport->vport, err);
goto out;
}
vport->ingress.acl = acl;
match_criteria = MLX5_ADDR_OF(create_flow_group_in, flow_group_in, match_criteria);
MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.vlan_tag);
MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.smac_47_16);
MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.smac_15_0);
MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 0);
MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 0);
g = mlx5_create_flow_group(acl, flow_group_in);
if (IS_ERR(g)) {
err = PTR_ERR(g);
esw_warn(dev, "Failed to create E-Switch vport[%d] ingress untagged spoofchk flow group, err(%d)\n",
vport->vport, err);
goto out;
}
vport->ingress.allow_untagged_spoofchk_grp = g;
memset(flow_group_in, 0, inlen);
MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.vlan_tag);
MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 1);
MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 1);
g = mlx5_create_flow_group(acl, flow_group_in);
if (IS_ERR(g)) {
err = PTR_ERR(g);
esw_warn(dev, "Failed to create E-Switch vport[%d] ingress untagged flow group, err(%d)\n",
vport->vport, err);
goto out;
}
vport->ingress.allow_untagged_only_grp = g;
memset(flow_group_in, 0, inlen);
MLX5_SET(create_flow_group_in, flow_group_in, match_criteria_enable, MLX5_MATCH_OUTER_HEADERS);
MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.smac_47_16);
MLX5_SET_TO_ONES(fte_match_param, match_criteria, outer_headers.smac_15_0);
MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 2);
MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 2);
g = mlx5_create_flow_group(acl, flow_group_in);
if (IS_ERR(g)) {
err = PTR_ERR(g);
esw_warn(dev, "Failed to create E-Switch vport[%d] ingress spoofchk flow group, err(%d)\n",
vport->vport, err);
goto out;
}
vport->ingress.allow_spoofchk_only_grp = g;
memset(flow_group_in, 0, inlen);
MLX5_SET(create_flow_group_in, flow_group_in, start_flow_index, 3);
MLX5_SET(create_flow_group_in, flow_group_in, end_flow_index, 3);
g = mlx5_create_flow_group(acl, flow_group_in);
if (IS_ERR(g)) {
err = PTR_ERR(g);
esw_warn(dev, "Failed to create E-Switch vport[%d] ingress drop flow group, err(%d)\n",
vport->vport, err);
goto out;
}
vport->ingress.drop_grp = g;
out:
if (err) {
if (!IS_ERR_OR_NULL(vport->ingress.allow_spoofchk_only_grp))
mlx5_destroy_flow_group(
vport->ingress.allow_spoofchk_only_grp);
if (!IS_ERR_OR_NULL(vport->ingress.allow_untagged_only_grp))
mlx5_destroy_flow_group(
vport->ingress.allow_untagged_only_grp);
if (!IS_ERR_OR_NULL(vport->ingress.allow_untagged_spoofchk_grp))
mlx5_destroy_flow_group(
vport->ingress.allow_untagged_spoofchk_grp);
if (!IS_ERR_OR_NULL(vport->ingress.acl))
mlx5_destroy_flow_table(vport->ingress.acl);
}
kvfree(flow_group_in);
}
static void esw_vport_cleanup_ingress_rules(struct mlx5_eswitch *esw,
struct mlx5_vport *vport)
{
if (!IS_ERR_OR_NULL(vport->ingress.drop_rule))
mlx5_del_flow_rule(vport->ingress.drop_rule);
if (!IS_ERR_OR_NULL(vport->ingress.allow_rule))
mlx5_del_flow_rule(vport->ingress.allow_rule);
vport->ingress.drop_rule = NULL;
vport->ingress.allow_rule = NULL;
}
static void esw_vport_disable_ingress_acl(struct mlx5_eswitch *esw,
struct mlx5_vport *vport)
{
if (IS_ERR_OR_NULL(vport->ingress.acl))
return;
esw_debug(esw->dev, "Destroy vport[%d] E-Switch ingress ACL\n", vport->vport);
esw_vport_cleanup_ingress_rules(esw, vport);
mlx5_destroy_flow_group(vport->ingress.allow_spoofchk_only_grp);
mlx5_destroy_flow_group(vport->ingress.allow_untagged_only_grp);
mlx5_destroy_flow_group(vport->ingress.allow_untagged_spoofchk_grp);
mlx5_destroy_flow_group(vport->ingress.drop_grp);
mlx5_destroy_flow_table(vport->ingress.acl);
vport->ingress.acl = NULL;
vport->ingress.drop_grp = NULL;
vport->ingress.allow_spoofchk_only_grp = NULL;
vport->ingress.allow_untagged_only_grp = NULL;
vport->ingress.allow_untagged_spoofchk_grp = NULL;
}
static int esw_vport_ingress_config(struct mlx5_eswitch *esw,
struct mlx5_vport *vport)
{
u8 smac[ETH_ALEN];
u32 *match_v;
u32 *match_c;
int err = 0;
u8 *smac_v;
if (vport->spoofchk) {
err = mlx5_query_nic_vport_mac_address(esw->dev, vport->vport, smac);
if (err) {
esw_warn(esw->dev,
"vport[%d] configure ingress rules failed, query smac failed, err(%d)\n",
vport->vport, err);
return err;
}
if (!is_valid_ether_addr(smac)) {
mlx5_core_warn(esw->dev,
"vport[%d] configure ingress rules failed, illegal mac with spoofchk\n",
vport->vport);
return -EPERM;
}
}
esw_vport_cleanup_ingress_rules(esw, vport);
if (!vport->vlan && !vport->qos && !vport->spoofchk) {
esw_vport_disable_ingress_acl(esw, vport);
return 0;
}
esw_vport_enable_ingress_acl(esw, vport);
esw_debug(esw->dev,
"vport[%d] configure ingress rules, vlan(%d) qos(%d)\n",
vport->vport, vport->vlan, vport->qos);
match_v = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL);
match_c = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL);
if (!match_v || !match_c) {
err = -ENOMEM;
esw_warn(esw->dev, "vport[%d] configure ingress rules failed, err(%d)\n",
vport->vport, err);
goto out;
}
if (vport->vlan || vport->qos)
MLX5_SET_TO_ONES(fte_match_param, match_c, outer_headers.vlan_tag);
if (vport->spoofchk) {
MLX5_SET_TO_ONES(fte_match_param, match_c, outer_headers.smac_47_16);
MLX5_SET_TO_ONES(fte_match_param, match_c, outer_headers.smac_15_0);
smac_v = MLX5_ADDR_OF(fte_match_param,
match_v,
outer_headers.smac_47_16);
ether_addr_copy(smac_v, smac);
}
vport->ingress.allow_rule =
mlx5_add_flow_rule(vport->ingress.acl,
MLX5_MATCH_OUTER_HEADERS,
match_c,
match_v,
MLX5_FLOW_CONTEXT_ACTION_ALLOW,
0, NULL);
if (IS_ERR(vport->ingress.allow_rule)) {
err = PTR_ERR(vport->ingress.allow_rule);
pr_warn("vport[%d] configure ingress allow rule, err(%d)\n",
vport->vport, err);
vport->ingress.allow_rule = NULL;
goto out;
}
memset(match_c, 0, MLX5_ST_SZ_BYTES(fte_match_param));
memset(match_v, 0, MLX5_ST_SZ_BYTES(fte_match_param));
vport->ingress.drop_rule =
mlx5_add_flow_rule(vport->ingress.acl,
0,
match_c,
match_v,
MLX5_FLOW_CONTEXT_ACTION_DROP,
0, NULL);
if (IS_ERR(vport->ingress.drop_rule)) {
err = PTR_ERR(vport->ingress.drop_rule);
pr_warn("vport[%d] configure ingress drop rule, err(%d)\n",
vport->vport, err);
vport->ingress.drop_rule = NULL;
goto out;
}
out:
if (err)
esw_vport_cleanup_ingress_rules(esw, vport);
kfree(match_v);
kfree(match_c);
return err;
}
static int esw_vport_egress_config(struct mlx5_eswitch *esw,
struct mlx5_vport *vport)
{
u32 *match_v;
u32 *match_c;
int err = 0;
esw_vport_cleanup_egress_rules(esw, vport);
if (!vport->vlan && !vport->qos) {
esw_vport_disable_egress_acl(esw, vport);
return 0;
}
esw_vport_enable_egress_acl(esw, vport);
esw_debug(esw->dev,
"vport[%d] configure egress rules, vlan(%d) qos(%d)\n",
vport->vport, vport->vlan, vport->qos);
match_v = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL);
match_c = kzalloc(MLX5_ST_SZ_BYTES(fte_match_param), GFP_KERNEL);
if (!match_v || !match_c) {
err = -ENOMEM;
esw_warn(esw->dev, "vport[%d] configure egress rules failed, err(%d)\n",
vport->vport, err);
goto out;
}
/* Allowed vlan rule */
MLX5_SET_TO_ONES(fte_match_param, match_c, outer_headers.vlan_tag);
MLX5_SET_TO_ONES(fte_match_param, match_v, outer_headers.vlan_tag);
MLX5_SET_TO_ONES(fte_match_param, match_c, outer_headers.first_vid);
MLX5_SET(fte_match_param, match_v, outer_headers.first_vid, vport->vlan);
vport->egress.allowed_vlan =
mlx5_add_flow_rule(vport->egress.acl,
MLX5_MATCH_OUTER_HEADERS,
match_c,
match_v,
MLX5_FLOW_CONTEXT_ACTION_ALLOW,
0, NULL);
if (IS_ERR(vport->egress.allowed_vlan)) {
err = PTR_ERR(vport->egress.allowed_vlan);
pr_warn("vport[%d] configure egress allowed vlan rule failed, err(%d)\n",
vport->vport, err);
vport->egress.allowed_vlan = NULL;
goto out;
}
/* Drop others rule (star rule) */
memset(match_c, 0, MLX5_ST_SZ_BYTES(fte_match_param));
memset(match_v, 0, MLX5_ST_SZ_BYTES(fte_match_param));
vport->egress.drop_rule =
mlx5_add_flow_rule(vport->egress.acl,
0,
match_c,
match_v,
MLX5_FLOW_CONTEXT_ACTION_DROP,
0, NULL);
if (IS_ERR(vport->egress.drop_rule)) {
err = PTR_ERR(vport->egress.drop_rule);
pr_warn("vport[%d] configure egress drop rule failed, err(%d)\n",
vport->vport, err);
vport->egress.drop_rule = NULL;
}
out:
kfree(match_v);
kfree(match_c);
return err;
}
static void esw_enable_vport(struct mlx5_eswitch *esw, int vport_num,
int enable_events)
{
struct mlx5_vport *vport = &esw->vports[vport_num];
mutex_lock(&esw->state_lock);
WARN_ON(vport->enabled);
esw_debug(esw->dev, "Enabling VPORT(%d)\n", vport_num);
if (vport_num) { /* Only VFs need ACLs for VST and spoofchk filtering */
esw_vport_ingress_config(esw, vport);
esw_vport_egress_config(esw, vport);
}
mlx5_modify_vport_admin_state(esw->dev,
MLX5_QUERY_VPORT_STATE_IN_OP_MOD_ESW_VPORT,
vport_num,
MLX5_ESW_VPORT_ADMIN_STATE_AUTO);
/* Sync with current vport context */
vport->enabled_events = enable_events;
vport->enabled = true;
/* only PF is trusted by default */
vport->trusted = (vport_num) ? false : true;
esw_vport_change_handle_locked(vport);
esw->enabled_vports++;
esw_debug(esw->dev, "Enabled VPORT(%d)\n", vport_num);
mutex_unlock(&esw->state_lock);
}
static void esw_disable_vport(struct mlx5_eswitch *esw, int vport_num)
{
struct mlx5_vport *vport = &esw->vports[vport_num];
if (!vport->enabled)
return;
esw_debug(esw->dev, "Disabling vport(%d)\n", vport_num);
/* Mark this vport as disabled to discard new events */
vport->enabled = false;
synchronize_irq(mlx5_get_msix_vec(esw->dev, MLX5_EQ_VEC_ASYNC));
mlx5_modify_vport_admin_state(esw->dev,
MLX5_QUERY_VPORT_STATE_IN_OP_MOD_ESW_VPORT,
vport_num,
MLX5_ESW_VPORT_ADMIN_STATE_DOWN);
/* Wait for current already scheduled events to complete */
flush_workqueue(esw->work_queue);
/* Disable events from this vport */
arm_vport_context_events_cmd(esw->dev, vport->vport, 0);
mutex_lock(&esw->state_lock);
/* We don't assume VFs will cleanup after themselves.
* Calling vport change handler while vport is disabled will cleanup
* the vport resources.
*/
esw_vport_change_handle_locked(vport);
vport->enabled_events = 0;
if (vport_num) {
esw_vport_disable_egress_acl(esw, vport);
esw_vport_disable_ingress_acl(esw, vport);
}
esw->enabled_vports--;
mutex_unlock(&esw->state_lock);
}
/* Public E-Switch API */
int mlx5_eswitch_enable_sriov(struct mlx5_eswitch *esw, int nvfs)
{
int err;
int i;
if (!esw || !MLX5_CAP_GEN(esw->dev, vport_group_manager) ||
MLX5_CAP_GEN(esw->dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
return 0;
if (!MLX5_CAP_GEN(esw->dev, eswitch_flow_table) ||
!MLX5_CAP_ESW_FLOWTABLE_FDB(esw->dev, ft_support)) {
esw_warn(esw->dev, "E-Switch FDB is not supported, aborting ...\n");
return -ENOTSUPP;
}
if (!MLX5_CAP_ESW_INGRESS_ACL(esw->dev, ft_support))
esw_warn(esw->dev, "E-Switch ingress ACL is not supported by FW\n");
if (!MLX5_CAP_ESW_EGRESS_ACL(esw->dev, ft_support))
esw_warn(esw->dev, "E-Switch engress ACL is not supported by FW\n");
esw_info(esw->dev, "E-Switch enable SRIOV: nvfs(%d)\n", nvfs);
esw_disable_vport(esw, 0);
err = esw_create_fdb_table(esw, nvfs + 1);
if (err)
goto abort;
for (i = 0; i <= nvfs; i++)
esw_enable_vport(esw, i, SRIOV_VPORT_EVENTS);
esw_info(esw->dev, "SRIOV enabled: active vports(%d)\n",
esw->enabled_vports);
return 0;
abort:
esw_enable_vport(esw, 0, UC_ADDR_CHANGE);
return err;
}
void mlx5_eswitch_disable_sriov(struct mlx5_eswitch *esw)
{
struct esw_mc_addr *mc_promisc;
int i;
if (!esw || !MLX5_CAP_GEN(esw->dev, vport_group_manager) ||
MLX5_CAP_GEN(esw->dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
return;
esw_info(esw->dev, "disable SRIOV: active vports(%d)\n",
esw->enabled_vports);
mc_promisc = esw->mc_promisc;
for (i = 0; i < esw->total_vports; i++)
esw_disable_vport(esw, i);
if (mc_promisc && mc_promisc->uplink_rule)
mlx5_del_flow_rule(mc_promisc->uplink_rule);
esw_destroy_fdb_table(esw);
/* VPORT 0 (PF) must be enabled back with non-sriov configuration */
esw_enable_vport(esw, 0, UC_ADDR_CHANGE);
}
int mlx5_eswitch_init(struct mlx5_core_dev *dev)
{
int l2_table_size = 1 << MLX5_CAP_GEN(dev, log_max_l2_table);
int total_vports = MLX5_TOTAL_VPORTS(dev);
struct esw_mc_addr *mc_promisc;
struct mlx5_eswitch *esw;
int vport_num;
int err;
if (!MLX5_CAP_GEN(dev, vport_group_manager) ||
MLX5_CAP_GEN(dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
return 0;
esw_info(dev,
"Total vports %d, l2 table size(%d), per vport: max uc(%d) max mc(%d)\n",
total_vports, l2_table_size,
MLX5_MAX_UC_PER_VPORT(dev),
MLX5_MAX_MC_PER_VPORT(dev));
esw = kzalloc(sizeof(*esw), GFP_KERNEL);
if (!esw)
return -ENOMEM;
esw->dev = dev;
esw->l2_table.bitmap = kcalloc(BITS_TO_LONGS(l2_table_size),
sizeof(uintptr_t), GFP_KERNEL);
if (!esw->l2_table.bitmap) {
err = -ENOMEM;
goto abort;
}
esw->l2_table.size = l2_table_size;
mc_promisc = kzalloc(sizeof(*mc_promisc), GFP_KERNEL);
if (!mc_promisc) {
err = -ENOMEM;
goto abort;
}
esw->mc_promisc = mc_promisc;
esw->work_queue = create_singlethread_workqueue("mlx5_esw_wq");
if (!esw->work_queue) {
err = -ENOMEM;
goto abort;
}
esw->vports = kcalloc(total_vports, sizeof(struct mlx5_vport),
GFP_KERNEL);
if (!esw->vports) {
err = -ENOMEM;
goto abort;
}
mutex_init(&esw->state_lock);
for (vport_num = 0; vport_num < total_vports; vport_num++) {
struct mlx5_vport *vport = &esw->vports[vport_num];
vport->vport = vport_num;
vport->dev = dev;
INIT_WORK(&vport->vport_change_handler,
esw_vport_change_handler);
}
esw->total_vports = total_vports;
esw->enabled_vports = 0;
dev->priv.eswitch = esw;
esw_enable_vport(esw, 0, UC_ADDR_CHANGE);
/* VF Vports will be enabled when SRIOV is enabled */
return 0;
abort:
if (esw->work_queue)
destroy_workqueue(esw->work_queue);
kfree(esw->l2_table.bitmap);
kfree(esw->vports);
kfree(esw);
return err;
}
void mlx5_eswitch_cleanup(struct mlx5_eswitch *esw)
{
if (!esw || !MLX5_CAP_GEN(esw->dev, vport_group_manager) ||
MLX5_CAP_GEN(esw->dev, port_type) != MLX5_CAP_PORT_TYPE_ETH)
return;
esw_info(esw->dev, "cleanup\n");
esw_disable_vport(esw, 0);
esw->dev->priv.eswitch = NULL;
destroy_workqueue(esw->work_queue);
kfree(esw->l2_table.bitmap);
kfree(esw->mc_promisc);
kfree(esw->vports);
kfree(esw);
}
void mlx5_eswitch_vport_event(struct mlx5_eswitch *esw, struct mlx5_eqe *eqe)
{
struct mlx5_eqe_vport_change *vc_eqe = &eqe->data.vport_change;
u16 vport_num = be16_to_cpu(vc_eqe->vport_num);
struct mlx5_vport *vport;
if (!esw) {
pr_warn("MLX5 E-Switch: vport %d got an event while eswitch is not initialized\n",
vport_num);
return;
}
vport = &esw->vports[vport_num];
if (vport->enabled)
queue_work(esw->work_queue, &vport->vport_change_handler);
}
/* Vport Administration */
#define ESW_ALLOWED(esw) \
(esw && MLX5_CAP_GEN(esw->dev, vport_group_manager) && mlx5_core_is_pf(esw->dev))
#define LEGAL_VPORT(esw, vport) (vport >= 0 && vport < esw->total_vports)
static void node_guid_gen_from_mac(u64 *node_guid, u8 mac[ETH_ALEN])
{
((u8 *)node_guid)[7] = mac[0];
((u8 *)node_guid)[6] = mac[1];
((u8 *)node_guid)[5] = mac[2];
((u8 *)node_guid)[4] = 0xff;
((u8 *)node_guid)[3] = 0xfe;
((u8 *)node_guid)[2] = mac[3];
((u8 *)node_guid)[1] = mac[4];
((u8 *)node_guid)[0] = mac[5];
}
int mlx5_eswitch_set_vport_mac(struct mlx5_eswitch *esw,
int vport, u8 mac[ETH_ALEN])
{
struct mlx5_vport *evport;
u64 node_guid;
int err = 0;
if (!ESW_ALLOWED(esw))
return -EPERM;
if (!LEGAL_VPORT(esw, vport))
return -EINVAL;
evport = &esw->vports[vport];
if (evport->spoofchk && !is_valid_ether_addr(mac)) {
mlx5_core_warn(esw->dev,
"MAC invalidation is not allowed when spoofchk is on, vport(%d)\n",
vport);
return -EPERM;
}
err = mlx5_modify_nic_vport_mac_address(esw->dev, vport, mac);
if (err) {
mlx5_core_warn(esw->dev,
"Failed to mlx5_modify_nic_vport_mac vport(%d) err=(%d)\n",
vport, err);
return err;
}
node_guid_gen_from_mac(&node_guid, mac);
err = mlx5_modify_nic_vport_node_guid(esw->dev, vport, node_guid);
if (err)
mlx5_core_warn(esw->dev,
"Failed to set vport %d node guid, err = %d. RDMA_CM will not function properly for this VF.\n",
vport, err);
mutex_lock(&esw->state_lock);
if (evport->enabled)
err = esw_vport_ingress_config(esw, evport);
mutex_unlock(&esw->state_lock);
return err;
}
int mlx5_eswitch_set_vport_state(struct mlx5_eswitch *esw,
int vport, int link_state)
{
if (!ESW_ALLOWED(esw))
return -EPERM;
if (!LEGAL_VPORT(esw, vport))
return -EINVAL;
return mlx5_modify_vport_admin_state(esw->dev,
MLX5_QUERY_VPORT_STATE_IN_OP_MOD_ESW_VPORT,
vport, link_state);
}
int mlx5_eswitch_get_vport_config(struct mlx5_eswitch *esw,
int vport, struct ifla_vf_info *ivi)
{
struct mlx5_vport *evport;
u16 vlan;
u8 qos;
if (!ESW_ALLOWED(esw))
return -EPERM;
if (!LEGAL_VPORT(esw, vport))
return -EINVAL;
evport = &esw->vports[vport];
memset(ivi, 0, sizeof(*ivi));
ivi->vf = vport - 1;
mlx5_query_nic_vport_mac_address(esw->dev, vport, ivi->mac);
ivi->linkstate = mlx5_query_vport_admin_state(esw->dev,
MLX5_QUERY_VPORT_STATE_IN_OP_MOD_ESW_VPORT,
vport);
query_esw_vport_cvlan(esw->dev, vport, &vlan, &qos);
ivi->vlan = vlan;
ivi->qos = qos;
ivi->spoofchk = evport->spoofchk;
return 0;
}
int mlx5_eswitch_set_vport_vlan(struct mlx5_eswitch *esw,
int vport, u16 vlan, u8 qos)
{
struct mlx5_vport *evport;
int err = 0;
int set = 0;
if (!ESW_ALLOWED(esw))
return -EPERM;
if (!LEGAL_VPORT(esw, vport) || (vlan > 4095) || (qos > 7))
return -EINVAL;
if (vlan || qos)
set = 1;
evport = &esw->vports[vport];
err = modify_esw_vport_cvlan(esw->dev, vport, vlan, qos, set);
if (err)
return err;
mutex_lock(&esw->state_lock);
evport->vlan = vlan;
evport->qos = qos;
if (evport->enabled) {
err = esw_vport_ingress_config(esw, evport);
if (err)
goto out;
err = esw_vport_egress_config(esw, evport);
}
out:
mutex_unlock(&esw->state_lock);
return err;
}
int mlx5_eswitch_set_vport_spoofchk(struct mlx5_eswitch *esw,
int vport, bool spoofchk)
{
struct mlx5_vport *evport;
bool pschk;
int err = 0;
if (!ESW_ALLOWED(esw))
return -EPERM;
if (!LEGAL_VPORT(esw, vport))
return -EINVAL;
evport = &esw->vports[vport];
mutex_lock(&esw->state_lock);
pschk = evport->spoofchk;
evport->spoofchk = spoofchk;
if (evport->enabled)
err = esw_vport_ingress_config(esw, evport);
if (err)
evport->spoofchk = pschk;
mutex_unlock(&esw->state_lock);
return err;
}
int mlx5_eswitch_set_vport_trust(struct mlx5_eswitch *esw,
int vport, bool setting)
{
struct mlx5_vport *evport;
if (!ESW_ALLOWED(esw))
return -EPERM;
if (!LEGAL_VPORT(esw, vport))
return -EINVAL;
evport = &esw->vports[vport];
mutex_lock(&esw->state_lock);
evport->trusted = setting;
if (evport->enabled)
esw_vport_change_handle_locked(evport);
mutex_unlock(&esw->state_lock);
return 0;
}
int mlx5_eswitch_get_vport_stats(struct mlx5_eswitch *esw,
int vport,
struct ifla_vf_stats *vf_stats)
{
int outlen = MLX5_ST_SZ_BYTES(query_vport_counter_out);
u32 in[MLX5_ST_SZ_DW(query_vport_counter_in)];
int err = 0;
u32 *out;
if (!ESW_ALLOWED(esw))
return -EPERM;
if (!LEGAL_VPORT(esw, vport))
return -EINVAL;
out = mlx5_vzalloc(outlen);
if (!out)
return -ENOMEM;
memset(in, 0, sizeof(in));
MLX5_SET(query_vport_counter_in, in, opcode,
MLX5_CMD_OP_QUERY_VPORT_COUNTER);
MLX5_SET(query_vport_counter_in, in, op_mod, 0);
MLX5_SET(query_vport_counter_in, in, vport_number, vport);
if (vport)
MLX5_SET(query_vport_counter_in, in, other_vport, 1);
memset(out, 0, outlen);
err = mlx5_cmd_exec(esw->dev, in, sizeof(in), out, outlen);
if (err)
goto free_out;
#define MLX5_GET_CTR(p, x) \
MLX5_GET64(query_vport_counter_out, p, x)
memset(vf_stats, 0, sizeof(*vf_stats));
vf_stats->rx_packets =
MLX5_GET_CTR(out, received_eth_unicast.packets) +
MLX5_GET_CTR(out, received_eth_multicast.packets) +
MLX5_GET_CTR(out, received_eth_broadcast.packets);
vf_stats->rx_bytes =
MLX5_GET_CTR(out, received_eth_unicast.octets) +
MLX5_GET_CTR(out, received_eth_multicast.octets) +
MLX5_GET_CTR(out, received_eth_broadcast.octets);
vf_stats->tx_packets =
MLX5_GET_CTR(out, transmitted_eth_unicast.packets) +
MLX5_GET_CTR(out, transmitted_eth_multicast.packets) +
MLX5_GET_CTR(out, transmitted_eth_broadcast.packets);
vf_stats->tx_bytes =
MLX5_GET_CTR(out, transmitted_eth_unicast.octets) +
MLX5_GET_CTR(out, transmitted_eth_multicast.octets) +
MLX5_GET_CTR(out, transmitted_eth_broadcast.octets);
vf_stats->multicast =
MLX5_GET_CTR(out, received_eth_multicast.packets);
vf_stats->broadcast =
MLX5_GET_CTR(out, received_eth_broadcast.packets);
free_out:
kvfree(out);
return err;
}
