#define UNKNOWN_MATCH_PRIO 8
static int mlx5e_hairpin_get_prio(struct mlx5e_priv *priv,
- struct mlx5_flow_spec *spec, u8 *match_prio)
+ struct mlx5_flow_spec *spec, u8 *match_prio,
+ struct netlink_ext_ack *extack)
{
void *headers_c, *headers_v;
u8 prio_val, prio_mask = 0;
#ifdef CONFIG_MLX5_CORE_EN_DCB
if (priv->dcbx_dp.trust_state != MLX5_QPTS_TRUST_PCP) {
- netdev_warn(priv->netdev,
- "only PCP trust state supported for hairpin\n");
+ NL_SET_ERR_MSG_MOD(extack,
+ "only PCP trust state supported for hairpin");
return -EOPNOTSUPP;
}
#endif
if (!vlan_present || !prio_mask) {
prio_val = UNKNOWN_MATCH_PRIO;
} else if (prio_mask != 0x7) {
- netdev_warn(priv->netdev,
- "masked priority match not supported for hairpin\n");
+ NL_SET_ERR_MSG_MOD(extack,
+ "masked priority match not supported for hairpin");
return -EOPNOTSUPP;
}
static int mlx5e_hairpin_flow_add(struct mlx5e_priv *priv,
struct mlx5e_tc_flow *flow,
- struct mlx5e_tc_flow_parse_attr *parse_attr)
+ struct mlx5e_tc_flow_parse_attr *parse_attr,
+ struct netlink_ext_ack *extack)
{
int peer_ifindex = parse_attr->mirred_ifindex;
struct mlx5_hairpin_params params;
peer_mdev = mlx5e_hairpin_get_mdev(dev_net(priv->netdev), peer_ifindex);
if (!MLX5_CAP_GEN(priv->mdev, hairpin) || !MLX5_CAP_GEN(peer_mdev, hairpin)) {
- netdev_warn(priv->netdev, "hairpin is not supported\n");
+ NL_SET_ERR_MSG_MOD(extack, "hairpin is not supported");
return -EOPNOTSUPP;
}
peer_id = MLX5_CAP_GEN(peer_mdev, vhca_id);
- err = mlx5e_hairpin_get_prio(priv, &parse_attr->spec, &match_prio);
+ err = mlx5e_hairpin_get_prio(priv, &parse_attr->spec, &match_prio,
+ extack);
if (err)
return err;
hpe = mlx5e_hairpin_get(priv, peer_id, match_prio);
static struct mlx5_flow_handle *
mlx5e_tc_add_nic_flow(struct mlx5e_priv *priv,
struct mlx5e_tc_flow_parse_attr *parse_attr,
- struct mlx5e_tc_flow *flow)
+ struct mlx5e_tc_flow *flow,
+ struct netlink_ext_ack *extack)
{
struct mlx5_nic_flow_attr *attr = flow->nic_attr;
struct mlx5_core_dev *dev = priv->mdev;
int err, dest_ix = 0;
if (flow->flags & MLX5E_TC_FLOW_HAIRPIN) {
- err = mlx5e_hairpin_flow_add(priv, flow, parse_attr);
+ err = mlx5e_hairpin_flow_add(priv, flow, parse_attr, extack);
if (err) {
rule = ERR_PTR(err);
goto err_add_hairpin_flow;
MLX5E_TC_TABLE_NUM_GROUPS,
MLX5E_TC_FT_LEVEL, 0);
if (IS_ERR(priv->fs.tc.t)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Failed to create tc offload table\n");
netdev_err(priv->netdev,
"Failed to create tc offload table\n");
rule = ERR_CAST(priv->fs.tc.t);
struct ip_tunnel_info *tun_info,
struct net_device *mirred_dev,
struct net_device **encap_dev,
- struct mlx5e_tc_flow *flow);
+ struct mlx5e_tc_flow *flow,
+ struct netlink_ext_ack *extack);
static struct mlx5_flow_handle *
mlx5e_tc_add_fdb_flow(struct mlx5e_priv *priv,
struct mlx5e_tc_flow_parse_attr *parse_attr,
- struct mlx5e_tc_flow *flow)
+ struct mlx5e_tc_flow *flow,
+ struct netlink_ext_ack *extack)
{
struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
struct mlx5_esw_flow_attr *attr = flow->esw_attr;
out_dev = __dev_get_by_index(dev_net(priv->netdev),
attr->parse_attr->mirred_ifindex);
err = mlx5e_attach_encap(priv, &parse_attr->tun_info,
- out_dev, &encap_dev, flow);
+ out_dev, &encap_dev, flow, extack);
if (err) {
rule = ERR_PTR(err);
if (err != -EAGAIN)
struct mlx5_flow_spec *spec,
struct tc_cls_flower_offload *f)
{
+ struct netlink_ext_ack *extack = f->common.extack;
void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
outer_headers);
void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap))
parse_vxlan_attr(spec, f);
else {
+ NL_SET_ERR_MSG_MOD(extack,
+ "port isn't an offloaded vxlan udp dport");
netdev_warn(priv->netdev,
"%d isn't an offloaded vxlan udp dport\n", be16_to_cpu(key->dst));
return -EOPNOTSUPP;
udp_sport, ntohs(key->src));
} else { /* udp dst port must be given */
vxlan_match_offload_err:
+ NL_SET_ERR_MSG_MOD(extack,
+ "IP tunnel decap offload supported only for vxlan, must set UDP dport");
netdev_warn(priv->netdev,
"IP tunnel decap offload supported only for vxlan, must set UDP dport\n");
return -EOPNOTSUPP;
MLX5_SET(fte_match_set_lyr_2_4, headers_c, ttl_hoplimit, mask->ttl);
MLX5_SET(fte_match_set_lyr_2_4, headers_v, ttl_hoplimit, key->ttl);
+
+ if (mask->ttl &&
+ !MLX5_CAP_ESW_FLOWTABLE_FDB
+ (priv->mdev,
+ ft_field_support.outer_ipv4_ttl)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Matching on TTL is not supported");
+ return -EOPNOTSUPP;
+ }
+
}
/* Enforce DMAC when offloading incoming tunneled flows.
struct tc_cls_flower_offload *f,
u8 *match_level)
{
+ struct netlink_ext_ack *extack = f->common.extack;
void *headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
outer_headers);
void *headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
BIT(FLOW_DISSECTOR_KEY_TCP) |
BIT(FLOW_DISSECTOR_KEY_IP) |
BIT(FLOW_DISSECTOR_KEY_ENC_IP))) {
+ NL_SET_ERR_MSG_MOD(extack, "Unsupported key");
netdev_warn(priv->netdev, "Unsupported key used: 0x%x\n",
f->dissector->used_keys);
return -EOPNOTSUPP;
*match_level = MLX5_MATCH_L2;
}
+ } else {
+ MLX5_SET(fte_match_set_lyr_2_4, headers_c, svlan_tag, 1);
+ MLX5_SET(fte_match_set_lyr_2_4, headers_c, cvlan_tag, 1);
}
if (dissector_uses_key(f->dissector, FLOW_DISSECTOR_KEY_CVLAN)) {
if (mask->ttl &&
!MLX5_CAP_ESW_FLOWTABLE_FDB(priv->mdev,
- ft_field_support.outer_ipv4_ttl))
+ ft_field_support.outer_ipv4_ttl)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Matching on TTL is not supported");
return -EOPNOTSUPP;
+ }
if (mask->tos || mask->ttl)
*match_level = MLX5_MATCH_L3;
udp_dport, ntohs(key->dst));
break;
default:
+ NL_SET_ERR_MSG_MOD(extack,
+ "Only UDP and TCP transports are supported for L4 matching");
netdev_err(priv->netdev,
"Only UDP and TCP transport are supported\n");
return -EINVAL;
struct mlx5_flow_spec *spec,
struct tc_cls_flower_offload *f)
{
+ struct netlink_ext_ack *extack = f->common.extack;
struct mlx5_core_dev *dev = priv->mdev;
struct mlx5_eswitch *esw = dev->priv.eswitch;
struct mlx5e_rep_priv *rpriv = priv->ppriv;
if (rep->vport != FDB_UPLINK_VPORT &&
(esw->offloads.inline_mode != MLX5_INLINE_MODE_NONE &&
esw->offloads.inline_mode < match_level)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Flow is not offloaded due to min inline setting");
netdev_warn(priv->netdev,
"Flow is not offloaded due to min inline setting, required %d actual %d\n",
match_level, esw->offloads.inline_mode);
*/
static int offload_pedit_fields(struct pedit_headers *masks,
struct pedit_headers *vals,
- struct mlx5e_tc_flow_parse_attr *parse_attr)
+ struct mlx5e_tc_flow_parse_attr *parse_attr,
+ struct netlink_ext_ack *extack)
{
struct pedit_headers *set_masks, *add_masks, *set_vals, *add_vals;
int i, action_size, nactions, max_actions, first, last, next_z;
continue;
if (s_mask && a_mask) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "can't set and add to the same HW field");
printk(KERN_WARNING "mlx5: can't set and add to the same HW field (%x)\n", f->field);
return -EOPNOTSUPP;
}
if (nactions == max_actions) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "too many pedit actions, can't offload");
printk(KERN_WARNING "mlx5: parsed %d pedit actions, can't do more\n", nactions);
return -EOPNOTSUPP;
}
next_z = find_next_zero_bit(&mask, field_bsize, first);
last = find_last_bit(&mask, field_bsize);
if (first < next_z && next_z < last) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "rewrite of few sub-fields isn't supported");
printk(KERN_WARNING "mlx5: rewrite of few sub-fields (mask %lx) isn't offloaded\n",
mask);
return -EOPNOTSUPP;
static int parse_tc_pedit_action(struct mlx5e_priv *priv,
const struct tc_action *a, int namespace,
- struct mlx5e_tc_flow_parse_attr *parse_attr)
+ struct mlx5e_tc_flow_parse_attr *parse_attr,
+ struct netlink_ext_ack *extack)
{
struct pedit_headers masks[__PEDIT_CMD_MAX], vals[__PEDIT_CMD_MAX], *cmd_masks;
int nkeys, i, err = -EOPNOTSUPP;
err = -EOPNOTSUPP; /* can't be all optimistic */
if (htype == TCA_PEDIT_KEY_EX_HDR_TYPE_NETWORK) {
- netdev_warn(priv->netdev, "legacy pedit isn't offloaded\n");
+ NL_SET_ERR_MSG_MOD(extack,
+ "legacy pedit isn't offloaded");
goto out_err;
}
if (cmd != TCA_PEDIT_KEY_EX_CMD_SET && cmd != TCA_PEDIT_KEY_EX_CMD_ADD) {
- netdev_warn(priv->netdev, "pedit cmd %d isn't offloaded\n", cmd);
+ NL_SET_ERR_MSG_MOD(extack, "pedit cmd isn't offloaded");
goto out_err;
}
if (err)
goto out_err;
- err = offload_pedit_fields(masks, vals, parse_attr);
+ err = offload_pedit_fields(masks, vals, parse_attr, extack);
if (err < 0)
goto out_dealloc_parsed_actions;
for (cmd = 0; cmd < __PEDIT_CMD_MAX; cmd++) {
cmd_masks = &masks[cmd];
if (memcmp(cmd_masks, &zero_masks, sizeof(zero_masks))) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "attempt to offload an unsupported field");
netdev_warn(priv->netdev, "attempt to offload an unsupported field (cmd %d)\n", cmd);
print_hex_dump(KERN_WARNING, "mask: ", DUMP_PREFIX_ADDRESS,
16, 1, cmd_masks, sizeof(zero_masks), true);
return err;
}
-static bool csum_offload_supported(struct mlx5e_priv *priv, u32 action, u32 update_flags)
+static bool csum_offload_supported(struct mlx5e_priv *priv,
+ u32 action,
+ u32 update_flags,
+ struct netlink_ext_ack *extack)
{
u32 prot_flags = TCA_CSUM_UPDATE_FLAG_IPV4HDR | TCA_CSUM_UPDATE_FLAG_TCP |
TCA_CSUM_UPDATE_FLAG_UDP;
/* The HW recalcs checksums only if re-writing headers */
if (!(action & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "TC csum action is only offloaded with pedit");
netdev_warn(priv->netdev,
"TC csum action is only offloaded with pedit\n");
return false;
}
if (update_flags & ~prot_flags) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "can't offload TC csum action for some header/s");
netdev_warn(priv->netdev,
"can't offload TC csum action for some header/s - flags %#x\n",
update_flags);
}
static bool modify_header_match_supported(struct mlx5_flow_spec *spec,
- struct tcf_exts *exts)
+ struct tcf_exts *exts,
+ struct netlink_ext_ack *extack)
{
const struct tc_action *a;
bool modify_ip_header;
goto out_ok;
modify_ip_header = false;
- tcf_exts_to_list(exts, &actions);
- list_for_each_entry(a, &actions, list) {
+ tcf_exts_for_each_action(i, a, exts) {
+ int k;
+
if (!is_tcf_pedit(a))
continue;
nkeys = tcf_pedit_nkeys(a);
- for (i = 0; i < nkeys; i++) {
- htype = tcf_pedit_htype(a, i);
+ for (k = 0; k < nkeys; k++) {
+ htype = tcf_pedit_htype(a, k);
if (htype == TCA_PEDIT_KEY_EX_HDR_TYPE_IP4 ||
htype == TCA_PEDIT_KEY_EX_HDR_TYPE_IP6) {
modify_ip_header = true;
ip_proto = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ip_protocol);
if (modify_ip_header && ip_proto != IPPROTO_TCP &&
ip_proto != IPPROTO_UDP && ip_proto != IPPROTO_ICMP) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "can't offload re-write of non TCP/UDP");
pr_info("can't offload re-write of ip proto %d\n", ip_proto);
return false;
}
static bool actions_match_supported(struct mlx5e_priv *priv,
struct tcf_exts *exts,
struct mlx5e_tc_flow_parse_attr *parse_attr,
- struct mlx5e_tc_flow *flow)
+ struct mlx5e_tc_flow *flow,
+ struct netlink_ext_ack *extack)
{
u32 actions;
return false;
if (actions & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)
- return modify_header_match_supported(&parse_attr->spec, exts);
+ return modify_header_match_supported(&parse_attr->spec, exts,
+ extack);
return true;
}
fmdev = priv->mdev;
pmdev = peer_priv->mdev;
- mlx5_query_nic_vport_system_image_guid(fmdev, &fsystem_guid);
- mlx5_query_nic_vport_system_image_guid(pmdev, &psystem_guid);
+ fsystem_guid = mlx5_query_nic_system_image_guid(fmdev);
+ psystem_guid = mlx5_query_nic_system_image_guid(pmdev);
return (fsystem_guid == psystem_guid);
}
static int parse_tc_nic_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
struct mlx5e_tc_flow_parse_attr *parse_attr,
- struct mlx5e_tc_flow *flow)
+ struct mlx5e_tc_flow *flow,
+ struct netlink_ext_ack *extack)
{
struct mlx5_nic_flow_attr *attr = flow->nic_attr;
const struct tc_action *a;
LIST_HEAD(actions);
u32 action = 0;
- int err;
+ int err, i;
if (!tcf_exts_has_actions(exts))
return -EINVAL;
attr->flow_tag = MLX5_FS_DEFAULT_FLOW_TAG;
- tcf_exts_to_list(exts, &actions);
- list_for_each_entry(a, &actions, list) {
+ tcf_exts_for_each_action(i, a, exts) {
if (is_tcf_gact_shot(a)) {
action |= MLX5_FLOW_CONTEXT_ACTION_DROP;
if (MLX5_CAP_FLOWTABLE(priv->mdev,
if (is_tcf_pedit(a)) {
err = parse_tc_pedit_action(priv, a, MLX5_FLOW_NAMESPACE_KERNEL,
- parse_attr);
+ parse_attr, extack);
if (err)
return err;
if (is_tcf_csum(a)) {
if (csum_offload_supported(priv, action,
- tcf_csum_update_flags(a)))
+ tcf_csum_update_flags(a),
+ extack))
continue;
return -EOPNOTSUPP;
action |= MLX5_FLOW_CONTEXT_ACTION_FWD_DEST |
MLX5_FLOW_CONTEXT_ACTION_COUNT;
} else {
+ NL_SET_ERR_MSG_MOD(extack,
+ "device is not on same HW, can't offload");
netdev_warn(priv->netdev, "device %s not on same HW, can't offload\n",
peer_dev->name);
return -EINVAL;
u32 mark = tcf_skbedit_mark(a);
if (mark & ~MLX5E_TC_FLOW_ID_MASK) {
- netdev_warn(priv->netdev, "Bad flow mark - only 16 bit is supported: 0x%x\n",
- mark);
+ NL_SET_ERR_MSG_MOD(extack,
+ "Bad flow mark - only 16 bit is supported");
return -EINVAL;
}
}
attr->action = action;
- if (!actions_match_supported(priv, exts, parse_attr, flow))
+ if (!actions_match_supported(priv, exts, parse_attr, flow, extack))
return -EOPNOTSUPP;
return 0;
struct ip_tunnel_info *tun_info,
struct net_device *mirred_dev,
struct net_device **encap_dev,
- struct mlx5e_tc_flow *flow)
+ struct mlx5e_tc_flow *flow,
+ struct netlink_ext_ack *extack)
{
struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
unsigned short family = ip_tunnel_info_af(tun_info);
/* setting udp src port isn't supported */
if (memchr_inv(&key->tp_src, 0, sizeof(key->tp_src))) {
vxlan_encap_offload_err:
+ NL_SET_ERR_MSG_MOD(extack,
+ "must set udp dst port and not set udp src port");
netdev_warn(priv->netdev,
"must set udp dst port and not set udp src port\n");
return -EOPNOTSUPP;
MLX5_CAP_ESW(priv->mdev, vxlan_encap_decap)) {
tunnel_type = MLX5_REFORMAT_TYPE_L2_TO_VXLAN;
} else {
+ NL_SET_ERR_MSG_MOD(extack,
+ "port isn't an offloaded vxlan udp dport");
netdev_warn(priv->netdev,
"%d isn't an offloaded vxlan udp dport\n", be16_to_cpu(key->tp_dst));
return -EOPNOTSUPP;
static int parse_tc_fdb_actions(struct mlx5e_priv *priv, struct tcf_exts *exts,
struct mlx5e_tc_flow_parse_attr *parse_attr,
- struct mlx5e_tc_flow *flow)
+ struct mlx5e_tc_flow *flow,
+ struct netlink_ext_ack *extack)
{
struct mlx5_esw_flow_attr *attr = flow->esw_attr;
struct mlx5e_rep_priv *rpriv = priv->ppriv;
LIST_HEAD(actions);
bool encap = false;
u32 action = 0;
- int err;
+ int err, i;
if (!tcf_exts_has_actions(exts))
return -EINVAL;
attr->in_rep = rpriv->rep;
attr->in_mdev = priv->mdev;
- tcf_exts_to_list(exts, &actions);
- list_for_each_entry(a, &actions, list) {
+ tcf_exts_for_each_action(i, a, exts) {
if (is_tcf_gact_shot(a)) {
action |= MLX5_FLOW_CONTEXT_ACTION_DROP |
MLX5_FLOW_CONTEXT_ACTION_COUNT;
if (is_tcf_pedit(a)) {
err = parse_tc_pedit_action(priv, a, MLX5_FLOW_NAMESPACE_FDB,
- parse_attr);
+ parse_attr, extack);
if (err)
return err;
if (is_tcf_csum(a)) {
if (csum_offload_supported(priv, action,
- tcf_csum_update_flags(a)))
+ tcf_csum_update_flags(a),
+ extack))
continue;
return -EOPNOTSUPP;
out_dev = tcf_mirred_dev(a);
if (attr->out_count >= MLX5_MAX_FLOW_FWD_VPORTS) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "can't support more output ports, can't offload forwarding");
pr_err("can't support more than %d output ports, can't offload forwarding\n",
attr->out_count);
return -EOPNOTSUPP;
MLX5_FLOW_CONTEXT_ACTION_COUNT;
/* attr->out_rep is resolved when we handle encap */
} else {
+ NL_SET_ERR_MSG_MOD(extack,
+ "devices are not on same switch HW, can't offload forwarding");
pr_err("devices %s %s not on same switch HW, can't offload forwarding\n",
priv->netdev->name, out_dev->name);
return -EINVAL;
}
attr->action = action;
- if (!actions_match_supported(priv, exts, parse_attr, flow))
+ if (!actions_match_supported(priv, exts, parse_attr, flow, extack))
return -EOPNOTSUPP;
if (attr->out_count > 1 && !mlx5_esw_has_fwd_fdb(priv->mdev)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "current firmware doesn't support split rule for port mirroring");
netdev_warn_once(priv->netdev, "current firmware doesn't support split rule for port mirroring\n");
return -EOPNOTSUPP;
}
int mlx5e_configure_flower(struct mlx5e_priv *priv,
struct tc_cls_flower_offload *f, int flags)
{
+ struct netlink_ext_ack *extack = f->common.extack;
struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
struct mlx5e_tc_flow_parse_attr *parse_attr;
struct rhashtable *tc_ht = get_tc_ht(priv);
flow = rhashtable_lookup_fast(tc_ht, &f->cookie, tc_ht_params);
if (flow) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "flow cookie already exists, ignoring");
netdev_warn_once(priv->netdev, "flow cookie %lx already exists, ignoring\n", f->cookie);
return 0;
}
goto err_free;
if (flow->flags & MLX5E_TC_FLOW_ESWITCH) {
- err = parse_tc_fdb_actions(priv, f->exts, parse_attr, flow);
+ err = parse_tc_fdb_actions(priv, f->exts, parse_attr, flow,
+ extack);
if (err < 0)
goto err_free;
- flow->rule[0] = mlx5e_tc_add_fdb_flow(priv, parse_attr, flow);
+ flow->rule[0] = mlx5e_tc_add_fdb_flow(priv, parse_attr, flow,
+ extack);
} else {
- err = parse_tc_nic_actions(priv, f->exts, parse_attr, flow);
+ err = parse_tc_nic_actions(priv, f->exts, parse_attr, flow,
+ extack);
if (err < 0)
goto err_free;
- flow->rule[0] = mlx5e_tc_add_nic_flow(priv, parse_attr, flow);
+ flow->rule[0] = mlx5e_tc_add_nic_flow(priv, parse_attr, flow,
+ extack);
}
if (IS_ERR(flow->rule[0])) {
return 0;
}
+static void mlx5e_tc_hairpin_update_dead_peer(struct mlx5e_priv *priv,
+ struct mlx5e_priv *peer_priv)
+{
+ struct mlx5_core_dev *peer_mdev = peer_priv->mdev;
+ struct mlx5e_hairpin_entry *hpe;
+ u16 peer_vhca_id;
+ int bkt;
+
+ if (!same_hw_devs(priv, peer_priv))
+ return;
+
+ peer_vhca_id = MLX5_CAP_GEN(peer_mdev, vhca_id);
+
+ hash_for_each(priv->fs.tc.hairpin_tbl, bkt, hpe, hairpin_hlist) {
+ if (hpe->peer_vhca_id == peer_vhca_id)
+ hpe->hp->pair->peer_gone = true;
+ }
+}
+
+static int mlx5e_tc_netdev_event(struct notifier_block *this,
+ unsigned long event, void *ptr)
+{
+ struct net_device *ndev = netdev_notifier_info_to_dev(ptr);
+ struct mlx5e_flow_steering *fs;
+ struct mlx5e_priv *peer_priv;
+ struct mlx5e_tc_table *tc;
+ struct mlx5e_priv *priv;
+
+ if (ndev->netdev_ops != &mlx5e_netdev_ops ||
+ event != NETDEV_UNREGISTER ||
+ ndev->reg_state == NETREG_REGISTERED)
+ return NOTIFY_DONE;
+
+ tc = container_of(this, struct mlx5e_tc_table, netdevice_nb);
+ fs = container_of(tc, struct mlx5e_flow_steering, tc);
+ priv = container_of(fs, struct mlx5e_priv, fs);
+ peer_priv = netdev_priv(ndev);
+ if (priv == peer_priv ||
+ !(priv->netdev->features & NETIF_F_HW_TC))
+ return NOTIFY_DONE;
+
+ mlx5e_tc_hairpin_update_dead_peer(priv, peer_priv);
+
+ return NOTIFY_DONE;
+}
+
int mlx5e_tc_nic_init(struct mlx5e_priv *priv)
{
struct mlx5e_tc_table *tc = &priv->fs.tc;
+ int err;
hash_init(tc->mod_hdr_tbl);
hash_init(tc->hairpin_tbl);
- return rhashtable_init(&tc->ht, &tc_ht_params);
+ err = rhashtable_init(&tc->ht, &tc_ht_params);
+ if (err)
+ return err;
+
+ tc->netdevice_nb.notifier_call = mlx5e_tc_netdev_event;
+ if (register_netdevice_notifier(&tc->netdevice_nb)) {
+ tc->netdevice_nb.notifier_call = NULL;
+ mlx5_core_warn(priv->mdev, "Failed to register netdev notifier\n");
+ }
+
+ return err;
}
static void _mlx5e_tc_del_flow(void *ptr, void *arg)
{
struct mlx5e_tc_table *tc = &priv->fs.tc;
+ if (tc->netdevice_nb.notifier_call)
+ unregister_netdevice_notifier(&tc->netdevice_nb);
+
rhashtable_free_and_destroy(&tc->ht, _mlx5e_tc_del_flow, NULL);
if (!IS_ERR_OR_NULL(tc->t)) {
OSDN Git Service
