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path: root/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
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Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx5/core/en_tc.c')
-rw-r--r--drivers/net/ethernet/mellanox/mlx5/core/en_tc.c418
1 files changed, 358 insertions, 60 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
index d75dc44eb2ff..31cd02f11499 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_tc.c
@@ -44,6 +44,7 @@
#include <net/tc_act/tc_pedit.h>
#include <net/tc_act/tc_csum.h>
#include <net/arp.h>
+#include <net/ipv6_stubs.h>
#include "en.h"
#include "en_rep.h"
#include "en_tc.h"
@@ -663,7 +664,8 @@ static int mlx5e_hairpin_flow_add(struct mlx5e_priv *priv,
}
netdev_dbg(priv->netdev, "add hairpin: tirn %x rqn %x peer %s sqn %x prio %d (log) data %d packets %d\n",
- hp->tirn, hp->pair->rqn[0], hp->pair->peer_mdev->priv.name,
+ hp->tirn, hp->pair->rqn[0],
+ dev_name(hp->pair->peer_mdev->device),
hp->pair->sqn[0], match_prio, params.log_data_size, params.log_num_packets);
hpe->hp = hp;
@@ -700,7 +702,7 @@ static void mlx5e_hairpin_flow_del(struct mlx5e_priv *priv,
hpe = list_entry(next, struct mlx5e_hairpin_entry, flows);
netdev_dbg(priv->netdev, "del hairpin: peer %s\n",
- hpe->hp->pair->peer_mdev->priv.name);
+ dev_name(hpe->hp->pair->peer_mdev->device));
mlx5e_hairpin_destroy(hpe->hp);
hash_del(&hpe->hairpin_hlist);
@@ -1437,6 +1439,26 @@ static int parse_tunnel_attr(struct mlx5e_priv *priv,
return 0;
}
+static void *get_match_headers_criteria(u32 flags,
+ struct mlx5_flow_spec *spec)
+{
+ return (flags & MLX5_FLOW_CONTEXT_ACTION_DECAP) ?
+ MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
+ inner_headers) :
+ MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
+ outer_headers);
+}
+
+static void *get_match_headers_value(u32 flags,
+ struct mlx5_flow_spec *spec)
+{
+ return (flags & MLX5_FLOW_CONTEXT_ACTION_DECAP) ?
+ MLX5_ADDR_OF(fte_match_param, spec->match_value,
+ inner_headers) :
+ MLX5_ADDR_OF(fte_match_param, spec->match_value,
+ outer_headers);
+}
+
static int __parse_cls_flower(struct mlx5e_priv *priv,
struct mlx5_flow_spec *spec,
struct tc_cls_flower_offload *f,
@@ -1502,10 +1524,10 @@ static int __parse_cls_flower(struct mlx5e_priv *priv,
/* In decap flow, header pointers should point to the inner
* headers, outer header were already set by parse_tunnel_attr
*/
- headers_c = MLX5_ADDR_OF(fte_match_param, spec->match_criteria,
- inner_headers);
- headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value,
- inner_headers);
+ headers_c = get_match_headers_criteria(MLX5_FLOW_CONTEXT_ACTION_DECAP,
+ spec);
+ headers_v = get_match_headers_value(MLX5_FLOW_CONTEXT_ACTION_DECAP,
+ spec);
}
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
@@ -1520,11 +1542,23 @@ static int __parse_cls_flower(struct mlx5e_priv *priv,
if (match.mask->n_proto)
*match_level = MLX5_MATCH_L2;
}
-
- if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN) ||
+ is_vlan_dev(filter_dev)) {
+ struct flow_dissector_key_vlan filter_dev_mask;
+ struct flow_dissector_key_vlan filter_dev_key;
struct flow_match_vlan match;
- flow_rule_match_vlan(rule, &match);
+ if (is_vlan_dev(filter_dev)) {
+ match.key = &filter_dev_key;
+ match.key->vlan_id = vlan_dev_vlan_id(filter_dev);
+ match.key->vlan_tpid = vlan_dev_vlan_proto(filter_dev);
+ match.key->vlan_priority = 0;
+ match.mask = &filter_dev_mask;
+ memset(match.mask, 0xff, sizeof(*match.mask));
+ match.mask->vlan_priority = 0;
+ } else {
+ flow_rule_match_vlan(rule, &match);
+ }
if (match.mask->vlan_id ||
match.mask->vlan_priority ||
match.mask->vlan_tpid) {
@@ -1561,7 +1595,7 @@ static int __parse_cls_flower(struct mlx5e_priv *priv,
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CVLAN)) {
struct flow_match_vlan match;
- flow_rule_match_vlan(rule, &match);
+ flow_rule_match_cvlan(rule, &match);
if (match.mask->vlan_id ||
match.mask->vlan_priority ||
match.mask->vlan_tpid) {
@@ -1827,6 +1861,7 @@ static int parse_cls_flower(struct mlx5e_priv *priv,
struct pedit_headers {
struct ethhdr eth;
+ struct vlan_hdr vlan;
struct iphdr ip4;
struct ipv6hdr ip6;
struct tcphdr tcp;
@@ -1873,38 +1908,83 @@ struct mlx5_fields {
u8 field;
u8 size;
u32 offset;
+ u32 match_offset;
};
-#define OFFLOAD(fw_field, size, field, off) \
- {MLX5_ACTION_IN_FIELD_OUT_ ## fw_field, size, offsetof(struct pedit_headers, field) + (off)}
+#define OFFLOAD(fw_field, size, field, off, match_field) \
+ {MLX5_ACTION_IN_FIELD_OUT_ ## fw_field, size, \
+ offsetof(struct pedit_headers, field) + (off), \
+ MLX5_BYTE_OFF(fte_match_set_lyr_2_4, match_field)}
+
+/* masked values are the same and there are no rewrites that do not have a
+ * match.
+ */
+#define SAME_VAL_MASK(type, valp, maskp, matchvalp, matchmaskp) ({ \
+ type matchmaskx = *(type *)(matchmaskp); \
+ type matchvalx = *(type *)(matchvalp); \
+ type maskx = *(type *)(maskp); \
+ type valx = *(type *)(valp); \
+ \
+ (valx & maskx) == (matchvalx & matchmaskx) && !(maskx & (maskx ^ \
+ matchmaskx)); \
+})
+
+static bool cmp_val_mask(void *valp, void *maskp, void *matchvalp,
+ void *matchmaskp, int size)
+{
+ bool same = false;
+
+ switch (size) {
+ case sizeof(u8):
+ same = SAME_VAL_MASK(u8, valp, maskp, matchvalp, matchmaskp);
+ break;
+ case sizeof(u16):
+ same = SAME_VAL_MASK(u16, valp, maskp, matchvalp, matchmaskp);
+ break;
+ case sizeof(u32):
+ same = SAME_VAL_MASK(u32, valp, maskp, matchvalp, matchmaskp);
+ break;
+ }
+
+ return same;
+}
static struct mlx5_fields fields[] = {
- OFFLOAD(DMAC_47_16, 4, eth.h_dest[0], 0),
- OFFLOAD(DMAC_15_0, 2, eth.h_dest[4], 0),
- OFFLOAD(SMAC_47_16, 4, eth.h_source[0], 0),
- OFFLOAD(SMAC_15_0, 2, eth.h_source[4], 0),
- OFFLOAD(ETHERTYPE, 2, eth.h_proto, 0),
-
- OFFLOAD(IP_TTL, 1, ip4.ttl, 0),
- OFFLOAD(SIPV4, 4, ip4.saddr, 0),
- OFFLOAD(DIPV4, 4, ip4.daddr, 0),
-
- OFFLOAD(SIPV6_127_96, 4, ip6.saddr.s6_addr32[0], 0),
- OFFLOAD(SIPV6_95_64, 4, ip6.saddr.s6_addr32[1], 0),
- OFFLOAD(SIPV6_63_32, 4, ip6.saddr.s6_addr32[2], 0),
- OFFLOAD(SIPV6_31_0, 4, ip6.saddr.s6_addr32[3], 0),
- OFFLOAD(DIPV6_127_96, 4, ip6.daddr.s6_addr32[0], 0),
- OFFLOAD(DIPV6_95_64, 4, ip6.daddr.s6_addr32[1], 0),
- OFFLOAD(DIPV6_63_32, 4, ip6.daddr.s6_addr32[2], 0),
- OFFLOAD(DIPV6_31_0, 4, ip6.daddr.s6_addr32[3], 0),
- OFFLOAD(IPV6_HOPLIMIT, 1, ip6.hop_limit, 0),
-
- OFFLOAD(TCP_SPORT, 2, tcp.source, 0),
- OFFLOAD(TCP_DPORT, 2, tcp.dest, 0),
- OFFLOAD(TCP_FLAGS, 1, tcp.ack_seq, 5),
-
- OFFLOAD(UDP_SPORT, 2, udp.source, 0),
- OFFLOAD(UDP_DPORT, 2, udp.dest, 0),
+ OFFLOAD(DMAC_47_16, 4, eth.h_dest[0], 0, dmac_47_16),
+ OFFLOAD(DMAC_15_0, 2, eth.h_dest[4], 0, dmac_15_0),
+ OFFLOAD(SMAC_47_16, 4, eth.h_source[0], 0, smac_47_16),
+ OFFLOAD(SMAC_15_0, 2, eth.h_source[4], 0, smac_15_0),
+ OFFLOAD(ETHERTYPE, 2, eth.h_proto, 0, ethertype),
+ OFFLOAD(FIRST_VID, 2, vlan.h_vlan_TCI, 0, first_vid),
+
+ OFFLOAD(IP_TTL, 1, ip4.ttl, 0, ttl_hoplimit),
+ OFFLOAD(SIPV4, 4, ip4.saddr, 0, src_ipv4_src_ipv6.ipv4_layout.ipv4),
+ OFFLOAD(DIPV4, 4, ip4.daddr, 0, dst_ipv4_dst_ipv6.ipv4_layout.ipv4),
+
+ OFFLOAD(SIPV6_127_96, 4, ip6.saddr.s6_addr32[0], 0,
+ src_ipv4_src_ipv6.ipv6_layout.ipv6[0]),
+ OFFLOAD(SIPV6_95_64, 4, ip6.saddr.s6_addr32[1], 0,
+ src_ipv4_src_ipv6.ipv6_layout.ipv6[4]),
+ OFFLOAD(SIPV6_63_32, 4, ip6.saddr.s6_addr32[2], 0,
+ src_ipv4_src_ipv6.ipv6_layout.ipv6[8]),
+ OFFLOAD(SIPV6_31_0, 4, ip6.saddr.s6_addr32[3], 0,
+ src_ipv4_src_ipv6.ipv6_layout.ipv6[12]),
+ OFFLOAD(DIPV6_127_96, 4, ip6.daddr.s6_addr32[0], 0,
+ dst_ipv4_dst_ipv6.ipv6_layout.ipv6[0]),
+ OFFLOAD(DIPV6_95_64, 4, ip6.daddr.s6_addr32[1], 0,
+ dst_ipv4_dst_ipv6.ipv6_layout.ipv6[4]),
+ OFFLOAD(DIPV6_63_32, 4, ip6.daddr.s6_addr32[2], 0,
+ dst_ipv4_dst_ipv6.ipv6_layout.ipv6[8]),
+ OFFLOAD(DIPV6_31_0, 4, ip6.daddr.s6_addr32[3], 0,
+ dst_ipv4_dst_ipv6.ipv6_layout.ipv6[12]),
+ OFFLOAD(IPV6_HOPLIMIT, 1, ip6.hop_limit, 0, ttl_hoplimit),
+
+ OFFLOAD(TCP_SPORT, 2, tcp.source, 0, tcp_sport),
+ OFFLOAD(TCP_DPORT, 2, tcp.dest, 0, tcp_dport),
+ OFFLOAD(TCP_FLAGS, 1, tcp.ack_seq, 5, tcp_flags),
+
+ OFFLOAD(UDP_SPORT, 2, udp.source, 0, udp_sport),
+ OFFLOAD(UDP_DPORT, 2, udp.dest, 0, udp_dport),
};
/* On input attr->max_mod_hdr_actions tells how many HW actions can be parsed at
@@ -1913,9 +1993,14 @@ static struct mlx5_fields fields[] = {
*/
static int offload_pedit_fields(struct pedit_headers_action *hdrs,
struct mlx5e_tc_flow_parse_attr *parse_attr,
+ u32 *action_flags,
struct netlink_ext_ack *extack)
{
struct pedit_headers *set_masks, *add_masks, *set_vals, *add_vals;
+ void *headers_c = get_match_headers_criteria(*action_flags,
+ &parse_attr->spec);
+ void *headers_v = get_match_headers_value(*action_flags,
+ &parse_attr->spec);
int i, action_size, nactions, max_actions, first, last, next_z;
void *s_masks_p, *a_masks_p, *vals_p;
struct mlx5_fields *f;
@@ -1939,6 +2024,8 @@ static int offload_pedit_fields(struct pedit_headers_action *hdrs,
nactions = parse_attr->num_mod_hdr_actions;
for (i = 0; i < ARRAY_SIZE(fields); i++) {
+ bool skip;
+
f = &fields[i];
/* avoid seeing bits set from previous iterations */
s_mask = 0;
@@ -1967,19 +2054,34 @@ static int offload_pedit_fields(struct pedit_headers_action *hdrs,
return -EOPNOTSUPP;
}
+ skip = false;
if (s_mask) {
+ void *match_mask = headers_c + f->match_offset;
+ void *match_val = headers_v + f->match_offset;
+
cmd = MLX5_ACTION_TYPE_SET;
mask = s_mask;
vals_p = (void *)set_vals + f->offset;
+ /* don't rewrite if we have a match on the same value */
+ if (cmp_val_mask(vals_p, s_masks_p, match_val,
+ match_mask, f->size))
+ skip = true;
/* clear to denote we consumed this field */
memset(s_masks_p, 0, f->size);
} else {
+ u32 zero = 0;
+
cmd = MLX5_ACTION_TYPE_ADD;
mask = a_mask;
vals_p = (void *)add_vals + f->offset;
+ /* add 0 is no change */
+ if (!memcmp(vals_p, &zero, f->size))
+ skip = true;
/* clear to denote we consumed this field */
memset(a_masks_p, 0, f->size);
}
+ if (skip)
+ continue;
field_bsize = f->size * BITS_PER_BYTE;
@@ -2026,6 +2128,15 @@ static int offload_pedit_fields(struct pedit_headers_action *hdrs,
return 0;
}
+static int mlx5e_flow_namespace_max_modify_action(struct mlx5_core_dev *mdev,
+ int namespace)
+{
+ if (namespace == MLX5_FLOW_NAMESPACE_FDB) /* FDB offloading */
+ return MLX5_CAP_ESW_FLOWTABLE_FDB(mdev, max_modify_header_actions);
+ else /* namespace is MLX5_FLOW_NAMESPACE_KERNEL - NIC offloading */
+ return MLX5_CAP_FLOWTABLE_NIC_RX(mdev, max_modify_header_actions);
+}
+
static int alloc_mod_hdr_actions(struct mlx5e_priv *priv,
struct pedit_headers_action *hdrs,
int namespace,
@@ -2037,11 +2148,7 @@ static int alloc_mod_hdr_actions(struct mlx5e_priv *priv,
hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].pedits;
action_size = MLX5_UN_SZ_BYTES(set_action_in_add_action_in_auto);
- if (namespace == MLX5_FLOW_NAMESPACE_FDB) /* FDB offloading */
- max_actions = MLX5_CAP_ESW_FLOWTABLE_FDB(priv->mdev, max_modify_header_actions);
- else /* namespace is MLX5_FLOW_NAMESPACE_KERNEL - NIC offloading */
- max_actions = MLX5_CAP_FLOWTABLE_NIC_RX(priv->mdev, max_modify_header_actions);
-
+ max_actions = mlx5e_flow_namespace_max_modify_action(priv->mdev, namespace);
/* can get up to crazingly 16 HW actions in 32 bits pedit SW key */
max_actions = min(max_actions, nkeys * 16);
@@ -2074,6 +2181,12 @@ static int parse_tc_pedit_action(struct mlx5e_priv *priv,
goto out_err;
}
+ if (!mlx5e_flow_namespace_max_modify_action(priv->mdev, namespace)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "The pedit offload action is not supported");
+ goto out_err;
+ }
+
mask = act->mangle.mask;
val = act->mangle.val;
offset = act->mangle.offset;
@@ -2092,6 +2205,7 @@ out_err:
static int alloc_tc_pedit_action(struct mlx5e_priv *priv, int namespace,
struct mlx5e_tc_flow_parse_attr *parse_attr,
struct pedit_headers_action *hdrs,
+ u32 *action_flags,
struct netlink_ext_ack *extack)
{
struct pedit_headers *cmd_masks;
@@ -2104,7 +2218,7 @@ static int alloc_tc_pedit_action(struct mlx5e_priv *priv, int namespace,
goto out_err;
}
- err = offload_pedit_fields(hdrs, parse_attr, extack);
+ err = offload_pedit_fields(hdrs, parse_attr, action_flags, extack);
if (err < 0)
goto out_dealloc_parsed_actions;
@@ -2216,11 +2330,7 @@ static bool modify_header_match_supported(struct mlx5_flow_spec *spec,
u8 ip_proto;
int i;
- if (actions & MLX5_FLOW_CONTEXT_ACTION_DECAP)
- headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, inner_headers);
- else
- headers_v = MLX5_ADDR_OF(fte_match_param, spec->match_value, outer_headers);
-
+ headers_v = get_match_headers_value(actions, spec);
ethertype = MLX5_GET(fte_match_set_lyr_2_4, headers_v, ethertype);
/* for non-IP we only re-write MACs, so we're okay */
@@ -2266,7 +2376,8 @@ static bool actions_match_supported(struct mlx5e_priv *priv,
actions = flow->nic_attr->action;
if (flow->flags & MLX5E_TC_FLOW_EGRESS &&
- !(actions & MLX5_FLOW_CONTEXT_ACTION_DECAP))
+ !((actions & MLX5_FLOW_CONTEXT_ACTION_DECAP) ||
+ (actions & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP)))
return false;
if (actions & MLX5_FLOW_CONTEXT_ACTION_MOD_HDR)
@@ -2291,6 +2402,74 @@ static bool same_hw_devs(struct mlx5e_priv *priv, struct mlx5e_priv *peer_priv)
return (fsystem_guid == psystem_guid);
}
+static int add_vlan_rewrite_action(struct mlx5e_priv *priv, int namespace,
+ const struct flow_action_entry *act,
+ struct mlx5e_tc_flow_parse_attr *parse_attr,
+ struct pedit_headers_action *hdrs,
+ u32 *action, struct netlink_ext_ack *extack)
+{
+ u16 mask16 = VLAN_VID_MASK;
+ u16 val16 = act->vlan.vid & VLAN_VID_MASK;
+ const struct flow_action_entry pedit_act = {
+ .id = FLOW_ACTION_MANGLE,
+ .mangle.htype = FLOW_ACT_MANGLE_HDR_TYPE_ETH,
+ .mangle.offset = offsetof(struct vlan_ethhdr, h_vlan_TCI),
+ .mangle.mask = ~(u32)be16_to_cpu(*(__be16 *)&mask16),
+ .mangle.val = (u32)be16_to_cpu(*(__be16 *)&val16),
+ };
+ u8 match_prio_mask, match_prio_val;
+ void *headers_c, *headers_v;
+ int err;
+
+ headers_c = get_match_headers_criteria(*action, &parse_attr->spec);
+ headers_v = get_match_headers_value(*action, &parse_attr->spec);
+
+ if (!(MLX5_GET(fte_match_set_lyr_2_4, headers_c, cvlan_tag) &&
+ MLX5_GET(fte_match_set_lyr_2_4, headers_v, cvlan_tag))) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VLAN rewrite action must have VLAN protocol match");
+ return -EOPNOTSUPP;
+ }
+
+ match_prio_mask = MLX5_GET(fte_match_set_lyr_2_4, headers_c, first_prio);
+ match_prio_val = MLX5_GET(fte_match_set_lyr_2_4, headers_v, first_prio);
+ if (act->vlan.prio != (match_prio_val & match_prio_mask)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Changing VLAN prio is not supported");
+ return -EOPNOTSUPP;
+ }
+
+ err = parse_tc_pedit_action(priv, &pedit_act, namespace, parse_attr,
+ hdrs, NULL);
+ *action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR;
+
+ return err;
+}
+
+static int
+add_vlan_prio_tag_rewrite_action(struct mlx5e_priv *priv,
+ struct mlx5e_tc_flow_parse_attr *parse_attr,
+ struct pedit_headers_action *hdrs,
+ u32 *action, struct netlink_ext_ack *extack)
+{
+ const struct flow_action_entry prio_tag_act = {
+ .vlan.vid = 0,
+ .vlan.prio =
+ MLX5_GET(fte_match_set_lyr_2_4,
+ get_match_headers_value(*action,
+ &parse_attr->spec),
+ first_prio) &
+ MLX5_GET(fte_match_set_lyr_2_4,
+ get_match_headers_criteria(*action,
+ &parse_attr->spec),
+ first_prio),
+ };
+
+ return add_vlan_rewrite_action(priv, MLX5_FLOW_NAMESPACE_FDB,
+ &prio_tag_act, parse_attr, hdrs, action,
+ extack);
+}
+
static int parse_tc_nic_actions(struct mlx5e_priv *priv,
struct flow_action *flow_action,
struct mlx5e_tc_flow_parse_attr *parse_attr,
@@ -2326,6 +2505,15 @@ static int parse_tc_nic_actions(struct mlx5e_priv *priv,
action |= MLX5_FLOW_CONTEXT_ACTION_MOD_HDR |
MLX5_FLOW_CONTEXT_ACTION_FWD_DEST;
break;
+ case FLOW_ACTION_VLAN_MANGLE:
+ err = add_vlan_rewrite_action(priv,
+ MLX5_FLOW_NAMESPACE_KERNEL,
+ act, parse_attr, hdrs,
+ &action, extack);
+ if (err)
+ return err;
+
+ break;
case FLOW_ACTION_CSUM:
if (csum_offload_supported(priv, action,
act->csum_flags,
@@ -2365,16 +2553,24 @@ static int parse_tc_nic_actions(struct mlx5e_priv *priv,
}
break;
default:
- return -EINVAL;
+ NL_SET_ERR_MSG_MOD(extack, "The offload action is not supported");
+ return -EOPNOTSUPP;
}
}
if (hdrs[TCA_PEDIT_KEY_EX_CMD_SET].pedits ||
hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].pedits) {
err = alloc_tc_pedit_action(priv, MLX5_FLOW_NAMESPACE_KERNEL,
- parse_attr, hdrs, extack);
+ parse_attr, hdrs, &action, extack);
if (err)
return err;
+ /* in case all pedit actions are skipped, remove the MOD_HDR
+ * flag.
+ */
+ if (parse_attr->num_mod_hdr_actions == 0) {
+ action &= ~MLX5_FLOW_CONTEXT_ACTION_MOD_HDR;
+ kfree(parse_attr->mod_hdr_actions);
+ }
}
attr->action = action;
@@ -2544,8 +2740,7 @@ static int parse_tc_vlan_action(struct mlx5e_priv *priv,
}
break;
default:
- /* action is FLOW_ACT_VLAN_MANGLE */
- return -EOPNOTSUPP;
+ return -EINVAL;
}
attr->total_vlan = vlan_idx + 1;
@@ -2553,15 +2748,60 @@ static int parse_tc_vlan_action(struct mlx5e_priv *priv,
return 0;
}
+static int add_vlan_push_action(struct mlx5e_priv *priv,
+ struct mlx5_esw_flow_attr *attr,
+ struct net_device **out_dev,
+ u32 *action)
+{
+ struct net_device *vlan_dev = *out_dev;
+ struct flow_action_entry vlan_act = {
+ .id = FLOW_ACTION_VLAN_PUSH,
+ .vlan.vid = vlan_dev_vlan_id(vlan_dev),
+ .vlan.proto = vlan_dev_vlan_proto(vlan_dev),
+ .vlan.prio = 0,
+ };
+ int err;
+
+ err = parse_tc_vlan_action(priv, &vlan_act, attr, action);
+ if (err)
+ return err;
+
+ *out_dev = dev_get_by_index_rcu(dev_net(vlan_dev),
+ dev_get_iflink(vlan_dev));
+ if (is_vlan_dev(*out_dev))
+ err = add_vlan_push_action(priv, attr, out_dev, action);
+
+ return err;
+}
+
+static int add_vlan_pop_action(struct mlx5e_priv *priv,
+ struct mlx5_esw_flow_attr *attr,
+ u32 *action)
+{
+ int nest_level = vlan_get_encap_level(attr->parse_attr->filter_dev);
+ struct flow_action_entry vlan_act = {
+ .id = FLOW_ACTION_VLAN_POP,
+ };
+ int err = 0;
+
+ while (nest_level--) {
+ err = parse_tc_vlan_action(priv, &vlan_act, attr, action);
+ if (err)
+ return err;
+ }
+
+ return err;
+}
+
static int parse_tc_fdb_actions(struct mlx5e_priv *priv,
struct flow_action *flow_action,
- struct mlx5e_tc_flow_parse_attr *parse_attr,
struct mlx5e_tc_flow *flow,
struct netlink_ext_ack *extack)
{
struct pedit_headers_action hdrs[2] = {};
struct mlx5_eswitch *esw = priv->mdev->priv.eswitch;
struct mlx5_esw_flow_attr *attr = flow->esw_attr;
+ struct mlx5e_tc_flow_parse_attr *parse_attr = attr->parse_attr;
struct mlx5e_rep_priv *rpriv = priv->ppriv;
const struct ip_tunnel_info *info = NULL;
const struct flow_action_entry *act;
@@ -2633,6 +2873,20 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv,
uplink_upper == out_dev)
out_dev = uplink_dev;
+ if (is_vlan_dev(out_dev)) {
+ err = add_vlan_push_action(priv, attr,
+ &out_dev,
+ &action);
+ if (err)
+ return err;
+ }
+ if (is_vlan_dev(parse_attr->filter_dev)) {
+ err = add_vlan_pop_action(priv, attr,
+ &action);
+ if (err)
+ return err;
+ }
+
if (!mlx5e_eswitch_rep(out_dev))
return -EOPNOTSUPP;
@@ -2646,7 +2900,6 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv,
out_dev->ifindex;
parse_attr->tun_info[attr->out_count] = *info;
encap = false;
- attr->parse_attr = parse_attr;
attr->dests[attr->out_count].flags |=
MLX5_ESW_DEST_ENCAP;
attr->out_count++;
@@ -2679,7 +2932,27 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv,
break;
case FLOW_ACTION_VLAN_PUSH:
case FLOW_ACTION_VLAN_POP:
- err = parse_tc_vlan_action(priv, act, attr, &action);
+ if (act->id == FLOW_ACTION_VLAN_PUSH &&
+ (action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP)) {
+ /* Replace vlan pop+push with vlan modify */
+ action &= ~MLX5_FLOW_CONTEXT_ACTION_VLAN_POP;
+ err = add_vlan_rewrite_action(priv,
+ MLX5_FLOW_NAMESPACE_FDB,
+ act, parse_attr, hdrs,
+ &action, extack);
+ } else {
+ err = parse_tc_vlan_action(priv, act, attr, &action);
+ }
+ if (err)
+ return err;
+
+ attr->split_count = attr->out_count;
+ break;
+ case FLOW_ACTION_VLAN_MANGLE:
+ err = add_vlan_rewrite_action(priv,
+ MLX5_FLOW_NAMESPACE_FDB,
+ act, parse_attr, hdrs,
+ &action, extack);
if (err)
return err;
@@ -2705,16 +2978,40 @@ static int parse_tc_fdb_actions(struct mlx5e_priv *priv,
break;
}
default:
- return -EINVAL;
+ NL_SET_ERR_MSG_MOD(extack, "The offload action is not supported");
+ return -EOPNOTSUPP;
}
}
+ if (MLX5_CAP_GEN(esw->dev, prio_tag_required) &&
+ action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP) {
+ /* For prio tag mode, replace vlan pop with rewrite vlan prio
+ * tag rewrite.
+ */
+ action &= ~MLX5_FLOW_CONTEXT_ACTION_VLAN_POP;
+ err = add_vlan_prio_tag_rewrite_action(priv, parse_attr, hdrs,
+ &action, extack);
+ if (err)
+ return err;
+ }
+
if (hdrs[TCA_PEDIT_KEY_EX_CMD_SET].pedits ||
hdrs[TCA_PEDIT_KEY_EX_CMD_ADD].pedits) {
err = alloc_tc_pedit_action(priv, MLX5_FLOW_NAMESPACE_FDB,
- parse_attr, hdrs, extack);
+ parse_attr, hdrs, &action, extack);
if (err)
return err;
+ /* in case all pedit actions are skipped, remove the MOD_HDR
+ * flag. we might have set split_count either by pedit or
+ * pop/push. if there is no pop/push either, reset it too.
+ */
+ if (parse_attr->num_mod_hdr_actions == 0) {
+ action &= ~MLX5_FLOW_CONTEXT_ACTION_MOD_HDR;
+ kfree(parse_attr->mod_hdr_actions);
+ if (!((action & MLX5_FLOW_CONTEXT_ACTION_VLAN_POP) ||
+ (action & MLX5_FLOW_CONTEXT_ACTION_VLAN_PUSH)))
+ attr->split_count = 0;
+ }
}
attr->action = action;
@@ -2883,7 +3180,7 @@ __mlx5e_add_fdb_flow(struct mlx5e_priv *priv,
if (err)
goto err_free;
- err = parse_tc_fdb_actions(priv, &rule->action, parse_attr, flow, extack);
+ err = parse_tc_fdb_actions(priv, &rule->action, flow, extack);
if (err)
goto err_free;
@@ -3080,6 +3377,7 @@ int mlx5e_configure_flower(struct net_device *dev, struct mlx5e_priv *priv,
netdev_warn_once(priv->netdev,
"flow cookie %lx already exists, ignoring\n",
f->cookie);
+ err = -EEXIST;
goto out;
}