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nfp: flower: extend extack messaging for flower match and actions 

Use extack messages in flower offload when compiling match and actions
messages that will configure hardware.

Signed-off-by: Pieter Jansen van Vuuren <pieter.jansenvanvuuren@netronome.com>
Reviewed-by: Simon Horman <simon.horman@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pieter Jansen van Vuuren 2019-06-13 14:17:11 -07:00 committed by David S. Miller
parent 14179c4b45
commit bef6e97d57
6 changed files with 196 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

205
drivers/net/ethernet/netronome/nfp/flower/action.c
View File

@ -54,7 +54,8 @@ nfp_fl_push_vlan(struct nfp_fl_push_vlan *push_vlan,
static int
nfp_fl_pre_lag(struct nfp_app *app, const struct flow_action_entry *act,
struct nfp_fl_payload *nfp_flow, int act_len)
struct nfp_fl_payload *nfp_flow, int act_len,
struct netlink_ext_ack *extack)
{
size_t act_size = sizeof(struct nfp_fl_pre_lag);
struct nfp_fl_pre_lag *pre_lag;
@ -65,8 +66,10 @@ nfp_fl_pre_lag(struct nfp_app *app, const struct flow_action_entry *act,
if (!out_dev || !netif_is_lag_master(out_dev))
return 0;
if (act_len + act_size > NFP_FL_MAX_A_SIZ)
if (act_len + act_size > NFP_FL_MAX_A_SIZ) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at LAG action");
return -EOPNOTSUPP;
}
/* Pre_lag action must be first on action list.
* If other actions already exist they need pushed forward.
@ -76,7 +79,7 @@ nfp_fl_pre_lag(struct nfp_app *app, const struct flow_action_entry *act,
nfp_flow->action_data, act_len);
pre_lag = (struct nfp_fl_pre_lag *)nfp_flow->action_data;
err = nfp_flower_lag_populate_pre_action(app, out_dev, pre_lag);
err = nfp_flower_lag_populate_pre_action(app, out_dev, pre_lag, extack);
if (err)
return err;
@ -93,7 +96,8 @@ nfp_fl_output(struct nfp_app *app, struct nfp_fl_output *output,
const struct flow_action_entry *act,
struct nfp_fl_payload *nfp_flow,
bool last, struct net_device *in_dev,
enum nfp_flower_tun_type tun_type, int *tun_out_cnt)
enum nfp_flower_tun_type tun_type, int *tun_out_cnt,
struct netlink_ext_ack *extack)
{
size_t act_size = sizeof(struct nfp_fl_output);
struct nfp_flower_priv *priv = app->priv;
@ -104,18 +108,24 @@ nfp_fl_output(struct nfp_app *app, struct nfp_fl_output *output,
output->head.len_lw = act_size >> NFP_FL_LW_SIZ;
out_dev = act->dev;
if (!out_dev)
if (!out_dev) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid egress interface for mirred action");
return -EOPNOTSUPP;
}
tmp_flags = last ? NFP_FL_OUT_FLAGS_LAST : 0;
if (tun_type) {
/* Verify the egress netdev matches the tunnel type. */
if (!nfp_fl_netdev_is_tunnel_type(out_dev, tun_type))
if (!nfp_fl_netdev_is_tunnel_type(out_dev, tun_type)) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: egress interface does not match the required tunnel type");
return -EOPNOTSUPP;
}
if (*tun_out_cnt)
if (*tun_out_cnt) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: cannot offload more than one tunnel mirred output per filter");
return -EOPNOTSUPP;
}
(*tun_out_cnt)++;
output->flags = cpu_to_be16(tmp_flags |
@ -127,8 +137,10 @@ nfp_fl_output(struct nfp_app *app, struct nfp_fl_output *output,
output->flags = cpu_to_be16(tmp_flags);
gid = nfp_flower_lag_get_output_id(app, out_dev);
if (gid < 0)
if (gid < 0) {
NL_SET_ERR_MSG_MOD(extack, "invalid entry: cannot find group id for LAG action");
return gid;
}
output->port = cpu_to_be32(NFP_FL_LAG_OUT | gid);
} else {
/* Set action output parameters. */
@ -136,16 +148,22 @@ nfp_fl_output(struct nfp_app *app, struct nfp_fl_output *output,
if (nfp_netdev_is_nfp_repr(in_dev)) {
/* Confirm ingress and egress are on same device. */
if (!netdev_port_same_parent_id(in_dev, out_dev))
if (!netdev_port_same_parent_id(in_dev, out_dev)) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: ingress and egress interfaces are on different devices");
return -EOPNOTSUPP;
}
}
if (!nfp_netdev_is_nfp_repr(out_dev))
if (!nfp_netdev_is_nfp_repr(out_dev)) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: egress interface is not an nfp port");
return -EOPNOTSUPP;
}
output->port = cpu_to_be32(nfp_repr_get_port_id(out_dev));
if (!output->port)
if (!output->port) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid port id for egress interface");
return -EOPNOTSUPP;
}
}
nfp_flow->meta.shortcut = output->port;
@ -194,7 +212,8 @@ static struct nfp_fl_pre_tunnel *nfp_fl_pre_tunnel(char *act_data, int act_len)
static int
nfp_fl_push_geneve_options(struct nfp_fl_payload *nfp_fl, int *list_len,
const struct flow_action_entry *act)
const struct flow_action_entry *act,
struct netlink_ext_ack *extack)
{
struct ip_tunnel_info *ip_tun = (struct ip_tunnel_info *)act->tunnel;
int opt_len, opt_cnt, act_start, tot_push_len;
@ -212,20 +231,26 @@ nfp_fl_push_geneve_options(struct nfp_fl_payload *nfp_fl, int *list_len,
struct geneve_opt *opt = (struct geneve_opt *)src;
opt_cnt++;
if (opt_cnt > NFP_FL_MAX_GENEVE_OPT_CNT)
if (opt_cnt > NFP_FL_MAX_GENEVE_OPT_CNT) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed number of geneve options exceeded");
return -EOPNOTSUPP;
}
tot_push_len += sizeof(struct nfp_fl_push_geneve) +
opt->length * 4;
if (tot_push_len > NFP_FL_MAX_GENEVE_OPT_ACT)
if (tot_push_len > NFP_FL_MAX_GENEVE_OPT_ACT) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at push geneve options");
return -EOPNOTSUPP;
}
opt_len -= sizeof(struct geneve_opt) + opt->length * 4;
src += sizeof(struct geneve_opt) + opt->length * 4;
}
if (*list_len + tot_push_len > NFP_FL_MAX_A_SIZ)
if (*list_len + tot_push_len > NFP_FL_MAX_A_SIZ) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at push geneve options");
return -EOPNOTSUPP;
}
act_start = *list_len;
*list_len += tot_push_len;
@ -261,7 +286,8 @@ nfp_fl_set_ipv4_udp_tun(struct nfp_app *app,
const struct flow_action_entry *act,
struct nfp_fl_pre_tunnel *pre_tun,
enum nfp_flower_tun_type tun_type,
struct net_device *netdev)
struct net_device *netdev,
struct netlink_ext_ack *extack)
{
size_t act_size = sizeof(struct nfp_fl_set_ipv4_udp_tun);
const struct ip_tunnel_info *ip_tun = act->tunnel;
@ -275,8 +301,10 @@ nfp_fl_set_ipv4_udp_tun(struct nfp_app *app,
NFP_FL_TUNNEL_GENEVE_OPT != TUNNEL_GENEVE_OPT);
if (ip_tun->options_len &&
(tun_type != NFP_FL_TUNNEL_GENEVE ||
!(priv->flower_ext_feats & NFP_FL_FEATS_GENEVE_OPT)))
!(priv->flower_ext_feats & NFP_FL_FEATS_GENEVE_OPT))) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: loaded firmware does not support geneve options offload");
return -EOPNOTSUPP;
}
set_tun->head.jump_id = NFP_FL_ACTION_OPCODE_SET_IPV4_TUNNEL;
set_tun->head.len_lw = act_size >> NFP_FL_LW_SIZ;
@ -316,8 +344,10 @@ nfp_fl_set_ipv4_udp_tun(struct nfp_app *app,
set_tun->tos = ip_tun->key.tos;
if (!(ip_tun->key.tun_flags & NFP_FL_TUNNEL_KEY) ||
ip_tun->key.tun_flags & ~NFP_FL_SUPPORTED_IPV4_UDP_TUN_FLAGS)
ip_tun->key.tun_flags & ~NFP_FL_SUPPORTED_IPV4_UDP_TUN_FLAGS) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: loaded firmware does not support tunnel flag offload");
return -EOPNOTSUPP;
}
set_tun->tun_flags = ip_tun->key.tun_flags;
if (tun_type == NFP_FL_TUNNEL_GENEVE) {
@ -345,18 +375,22 @@ static void nfp_fl_set_helper32(u32 value, u32 mask, u8 *p_exact, u8 *p_mask)
static int
nfp_fl_set_eth(const struct flow_action_entry *act, u32 off,
struct nfp_fl_set_eth *set_eth)
struct nfp_fl_set_eth *set_eth, struct netlink_ext_ack *extack)
{
u32 exact, mask;
if (off + 4 > ETH_ALEN * 2)
if (off + 4 > ETH_ALEN * 2) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit ethernet action");
return -EOPNOTSUPP;
}
mask = ~act->mangle.mask;
exact = act->mangle.val;
if (exact & ~mask)
if (exact & ~mask) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit ethernet action");
return -EOPNOTSUPP;
}
nfp_fl_set_helper32(exact, mask, &set_eth->eth_addr_val[off],
&set_eth->eth_addr_mask[off]);
@ -377,7 +411,8 @@ struct ipv4_ttl_word {
static int
nfp_fl_set_ip4(const struct flow_action_entry *act, u32 off,
struct nfp_fl_set_ip4_addrs *set_ip_addr,
struct nfp_fl_set_ip4_ttl_tos *set_ip_ttl_tos)
struct nfp_fl_set_ip4_ttl_tos *set_ip_ttl_tos,
struct netlink_ext_ack *extack)
{
struct ipv4_ttl_word *ttl_word_mask;
struct ipv4_ttl_word *ttl_word;
@ -389,8 +424,10 @@ nfp_fl_set_ip4(const struct flow_action_entry *act, u32 off,
mask = (__force __be32)~act->mangle.mask;
exact = (__force __be32)act->mangle.val;
if (exact & ~mask)
if (exact & ~mask) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit IPv4 action");
return -EOPNOTSUPP;
}
switch (off) {
case offsetof(struct iphdr, daddr):
@ -413,8 +450,10 @@ nfp_fl_set_ip4(const struct flow_action_entry *act, u32 off,
ttl_word_mask = (struct ipv4_ttl_word *)&mask;
ttl_word = (struct ipv4_ttl_word *)&exact;
if (ttl_word_mask->protocol || ttl_word_mask->check)
if (ttl_word_mask->protocol || ttl_word_mask->check) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit IPv4 ttl action");
return -EOPNOTSUPP;
}
set_ip_ttl_tos->ipv4_ttl_mask |= ttl_word_mask->ttl;
set_ip_ttl_tos->ipv4_ttl &= ~ttl_word_mask->ttl;
@ -429,8 +468,10 @@ nfp_fl_set_ip4(const struct flow_action_entry *act, u32 off,
tos_word = (struct iphdr *)&exact;
if (tos_word_mask->version || tos_word_mask->ihl ||
tos_word_mask->tot_len)
tos_word_mask->tot_len) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit IPv4 tos action");
return -EOPNOTSUPP;
}
set_ip_ttl_tos->ipv4_tos_mask |= tos_word_mask->tos;
set_ip_ttl_tos->ipv4_tos &= ~tos_word_mask->tos;
@ -441,6 +482,7 @@ nfp_fl_set_ip4(const struct flow_action_entry *act, u32 off,
NFP_FL_LW_SIZ;
break;
default:
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: pedit on unsupported section of IPv4 header");
return -EOPNOTSUPP;
}
@ -468,7 +510,8 @@ struct ipv6_hop_limit_word {
static int
nfp_fl_set_ip6_hop_limit_flow_label(u32 off, __be32 exact, __be32 mask,
struct nfp_fl_set_ipv6_tc_hl_fl *ip_hl_fl)
struct nfp_fl_set_ipv6_tc_hl_fl *ip_hl_fl,
struct netlink_ext_ack *extack)
{
struct ipv6_hop_limit_word *fl_hl_mask;
struct ipv6_hop_limit_word *fl_hl;
@ -478,8 +521,10 @@ nfp_fl_set_ip6_hop_limit_flow_label(u32 off, __be32 exact, __be32 mask,
fl_hl_mask = (struct ipv6_hop_limit_word *)&mask;
fl_hl = (struct ipv6_hop_limit_word *)&exact;
if (fl_hl_mask->nexthdr || fl_hl_mask->payload_len)
if (fl_hl_mask->nexthdr || fl_hl_mask->payload_len) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit IPv6 hop limit action");
return -EOPNOTSUPP;
}
ip_hl_fl->ipv6_hop_limit_mask |= fl_hl_mask->hop_limit;
ip_hl_fl->ipv6_hop_limit &= ~fl_hl_mask->hop_limit;
@ -488,8 +533,10 @@ nfp_fl_set_ip6_hop_limit_flow_label(u32 off, __be32 exact, __be32 mask,
break;
case round_down(offsetof(struct ipv6hdr, flow_lbl), 4):
if (mask & ~IPV6_FLOW_LABEL_MASK ||
exact & ~IPV6_FLOW_LABEL_MASK)
exact & ~IPV6_FLOW_LABEL_MASK) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit IPv6 flow label action");
return -EOPNOTSUPP;
}
ip_hl_fl->ipv6_label_mask |= mask;
ip_hl_fl->ipv6_label &= ~mask;
@ -507,7 +554,8 @@ static int
nfp_fl_set_ip6(const struct flow_action_entry *act, u32 off,
struct nfp_fl_set_ipv6_addr *ip_dst,
struct nfp_fl_set_ipv6_addr *ip_src,
struct nfp_fl_set_ipv6_tc_hl_fl *ip_hl_fl)
struct nfp_fl_set_ipv6_tc_hl_fl *ip_hl_fl,
struct netlink_ext_ack *extack)
{
__be32 exact, mask;
int err = 0;
@ -517,12 +565,14 @@ nfp_fl_set_ip6(const struct flow_action_entry *act, u32 off,
mask = (__force __be32)~act->mangle.mask;
exact = (__force __be32)act->mangle.val;
if (exact & ~mask)
if (exact & ~mask) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit IPv6 action");
return -EOPNOTSUPP;
}
if (off < offsetof(struct ipv6hdr, saddr)) {
err = nfp_fl_set_ip6_hop_limit_flow_label(off, exact, mask,
ip_hl_fl);
ip_hl_fl, extack);
} else if (off < offsetof(struct ipv6hdr, daddr)) {
word = (off - offsetof(struct ipv6hdr, saddr)) / sizeof(exact);
nfp_fl_set_ip6_helper(NFP_FL_ACTION_OPCODE_SET_IPV6_SRC, word,
@ -533,6 +583,7 @@ nfp_fl_set_ip6(const struct flow_action_entry *act, u32 off,
nfp_fl_set_ip6_helper(NFP_FL_ACTION_OPCODE_SET_IPV6_DST, word,
exact, mask, ip_dst);
} else {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: pedit on unsupported section of IPv6 header");
return -EOPNOTSUPP;
}
@ -541,18 +592,23 @@ nfp_fl_set_ip6(const struct flow_action_entry *act, u32 off,
static int
nfp_fl_set_tport(const struct flow_action_entry *act, u32 off,
struct nfp_fl_set_tport *set_tport, int opcode)
struct nfp_fl_set_tport *set_tport, int opcode,
struct netlink_ext_ack *extack)
{
u32 exact, mask;
if (off)
if (off) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: pedit on unsupported section of L4 header");
return -EOPNOTSUPP;
}
mask = ~act->mangle.mask;
exact = act->mangle.val;
if (exact & ~mask)
if (exact & ~mask) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid pedit L4 action");
return -EOPNOTSUPP;
}
nfp_fl_set_helper32(exact, mask, set_tport->tp_port_val,
set_tport->tp_port_mask);
@ -695,7 +751,8 @@ nfp_fl_commit_mangle(struct tc_cls_flower_offload *flow, char *nfp_action,
static int
nfp_fl_pedit(const struct flow_action_entry *act,
struct tc_cls_flower_offload *flow, char *nfp_action, int *a_len,
u32 *csum_updated, struct nfp_flower_pedit_acts *set_act)
u32 *csum_updated, struct nfp_flower_pedit_acts *set_act,
struct netlink_ext_ack *extack)
{
enum flow_action_mangle_base htype;
u32 offset;
@ -705,21 +762,22 @@ nfp_fl_pedit(const struct flow_action_entry *act,
switch (htype) {
case TCA_PEDIT_KEY_EX_HDR_TYPE_ETH:
return nfp_fl_set_eth(act, offset, &set_act->set_eth);
return nfp_fl_set_eth(act, offset, &set_act->set_eth, extack);
case TCA_PEDIT_KEY_EX_HDR_TYPE_IP4:
return nfp_fl_set_ip4(act, offset, &set_act->set_ip_addr,
&set_act->set_ip_ttl_tos);
&set_act->set_ip_ttl_tos, extack);
case TCA_PEDIT_KEY_EX_HDR_TYPE_IP6:
return nfp_fl_set_ip6(act, offset, &set_act->set_ip6_dst,
&set_act->set_ip6_src,
&set_act->set_ip6_tc_hl_fl);
&set_act->set_ip6_tc_hl_fl, extack);
case TCA_PEDIT_KEY_EX_HDR_TYPE_TCP:
return nfp_fl_set_tport(act, offset, &set_act->set_tport,
NFP_FL_ACTION_OPCODE_SET_TCP);
NFP_FL_ACTION_OPCODE_SET_TCP, extack);
case TCA_PEDIT_KEY_EX_HDR_TYPE_UDP:
return nfp_fl_set_tport(act, offset, &set_act->set_tport,
NFP_FL_ACTION_OPCODE_SET_UDP);
NFP_FL_ACTION_OPCODE_SET_UDP, extack);
default:
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: pedit on unsupported header");
return -EOPNOTSUPP;
}
}
@ -730,7 +788,8 @@ nfp_flower_output_action(struct nfp_app *app,
struct nfp_fl_payload *nfp_fl, int *a_len,
struct net_device *netdev, bool last,
enum nfp_flower_tun_type *tun_type, int *tun_out_cnt,
int *out_cnt, u32 *csum_updated)
int *out_cnt, u32 *csum_updated,
struct netlink_ext_ack *extack)
{
struct nfp_flower_priv *priv = app->priv;
struct nfp_fl_output *output;
@ -739,15 +798,19 @@ nfp_flower_output_action(struct nfp_app *app,
/* If csum_updated has not been reset by now, it means HW will
* incorrectly update csums when they are not requested.
*/
if (*csum_updated)
if (*csum_updated) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: set actions without updating checksums are not supported");
return -EOPNOTSUPP;
}
if (*a_len + sizeof(struct nfp_fl_output) > NFP_FL_MAX_A_SIZ)
if (*a_len + sizeof(struct nfp_fl_output) > NFP_FL_MAX_A_SIZ) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: mirred output increases action list size beyond the allowed maximum");
return -EOPNOTSUPP;
}
output = (struct nfp_fl_output *)&nfp_fl->action_data[*a_len];
err = nfp_fl_output(app, output, act, nfp_fl, last, netdev, *tun_type,
tun_out_cnt);
tun_out_cnt, extack);
if (err)
return err;
@ -757,11 +820,13 @@ nfp_flower_output_action(struct nfp_app *app,
/* nfp_fl_pre_lag returns -err or size of prelag action added.
* This will be 0 if it is not egressing to a lag dev.
*/
prelag_size = nfp_fl_pre_lag(app, act, nfp_fl, *a_len);
if (prelag_size < 0)
prelag_size = nfp_fl_pre_lag(app, act, nfp_fl, *a_len, extack);
if (prelag_size < 0) {
return prelag_size;
else if (prelag_size > 0 && (!last || *out_cnt))
} else if (prelag_size > 0 && (!last || *out_cnt)) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: LAG action has to be last action in action list");
return -EOPNOTSUPP;
}
*a_len += prelag_size;
}
@ -777,7 +842,8 @@ nfp_flower_loop_action(struct nfp_app *app, const struct flow_action_entry *act,
struct net_device *netdev,
enum nfp_flower_tun_type *tun_type, int *tun_out_cnt,
int *out_cnt, u32 *csum_updated,
struct nfp_flower_pedit_acts *set_act)
struct nfp_flower_pedit_acts *set_act,
struct netlink_ext_ack *extack)
{
struct nfp_fl_set_ipv4_udp_tun *set_tun;
struct nfp_fl_pre_tunnel *pre_tun;
@ -792,20 +858,23 @@ nfp_flower_loop_action(struct nfp_app *app, const struct flow_action_entry *act,
case FLOW_ACTION_REDIRECT:
err = nfp_flower_output_action(app, act, nfp_fl, a_len, netdev,
true, tun_type, tun_out_cnt,
out_cnt, csum_updated);
out_cnt, csum_updated, extack);
if (err)
return err;
break;
case FLOW_ACTION_MIRRED:
err = nfp_flower_output_action(app, act, nfp_fl, a_len, netdev,
false, tun_type, tun_out_cnt,
out_cnt, csum_updated);
out_cnt, csum_updated, extack);
if (err)
return err;
break;
case FLOW_ACTION_VLAN_POP:
if (*a_len + sizeof(struct nfp_fl_pop_vlan) > NFP_FL_MAX_A_SIZ)
if (*a_len +
sizeof(struct nfp_fl_pop_vlan) > NFP_FL_MAX_A_SIZ) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at pop vlan");
return -EOPNOTSUPP;
}
pop_v = (struct nfp_fl_pop_vlan *)&nfp_fl->action_data[*a_len];
nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_POPV);
@ -814,8 +883,11 @@ nfp_flower_loop_action(struct nfp_app *app, const struct flow_action_entry *act,
*a_len += sizeof(struct nfp_fl_pop_vlan);
break;
case FLOW_ACTION_VLAN_PUSH:
if (*a_len + sizeof(struct nfp_fl_push_vlan) > NFP_FL_MAX_A_SIZ)
if (*a_len +
sizeof(struct nfp_fl_push_vlan) > NFP_FL_MAX_A_SIZ) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at push vlan");
return -EOPNOTSUPP;
}
psh_v = (struct nfp_fl_push_vlan *)&nfp_fl->action_data[*a_len];
nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL);
@ -827,31 +899,37 @@ nfp_flower_loop_action(struct nfp_app *app, const struct flow_action_entry *act,
const struct ip_tunnel_info *ip_tun = act->tunnel;
*tun_type = nfp_fl_get_tun_from_act_l4_port(app, act);
if (*tun_type == NFP_FL_TUNNEL_NONE)
if (*tun_type == NFP_FL_TUNNEL_NONE) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: unsupported tunnel type in action list");
return -EOPNOTSUPP;
}
if (ip_tun->mode & ~NFP_FL_SUPPORTED_TUNNEL_INFO_FLAGS)
if (ip_tun->mode & ~NFP_FL_SUPPORTED_TUNNEL_INFO_FLAGS) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: unsupported tunnel flags in action list");
return -EOPNOTSUPP;
}
/* Pre-tunnel action is required for tunnel encap.
* This checks for next hop entries on NFP.
* If none, the packet falls back before applying other actions.
*/
if (*a_len + sizeof(struct nfp_fl_pre_tunnel) +
sizeof(struct nfp_fl_set_ipv4_udp_tun) > NFP_FL_MAX_A_SIZ)
sizeof(struct nfp_fl_set_ipv4_udp_tun) > NFP_FL_MAX_A_SIZ) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: maximum allowed action list size exceeded at tunnel encap");
return -EOPNOTSUPP;
}
pre_tun = nfp_fl_pre_tunnel(nfp_fl->action_data, *a_len);
nfp_fl->meta.shortcut = cpu_to_be32(NFP_FL_SC_ACT_NULL);
*a_len += sizeof(struct nfp_fl_pre_tunnel);
err = nfp_fl_push_geneve_options(nfp_fl, a_len, act);
err = nfp_fl_push_geneve_options(nfp_fl, a_len, act, extack);
if (err)
return err;
set_tun = (void *)&nfp_fl->action_data[*a_len];
err = nfp_fl_set_ipv4_udp_tun(app, set_tun, act, pre_tun,
*tun_type, netdev);
*tun_type, netdev, extack);
if (err)
return err;
*a_len += sizeof(struct nfp_fl_set_ipv4_udp_tun);
@ -862,13 +940,15 @@ nfp_flower_loop_action(struct nfp_app *app, const struct flow_action_entry *act,
return 0;
case FLOW_ACTION_MANGLE:
if (nfp_fl_pedit(act, flow, &nfp_fl->action_data[*a_len],
a_len, csum_updated, set_act))
a_len, csum_updated, set_act, extack))
return -EOPNOTSUPP;
break;
case FLOW_ACTION_CSUM:
/* csum action requests recalc of something we have not fixed */
if (act->csum_flags & ~*csum_updated)
if (act->csum_flags & ~*csum_updated) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: unsupported csum update action in action list");
return -EOPNOTSUPP;
}
/* If we will correctly fix the csum we can remove it from the
* csum update list. Which will later be used to check support.
*/
@ -876,6 +956,7 @@ nfp_flower_loop_action(struct nfp_app *app, const struct flow_action_entry *act,
break;
default:
/* Currently we do not handle any other actions. */
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: unsupported action in action list");
return -EOPNOTSUPP;
}
@ -921,7 +1002,8 @@ static bool nfp_fl_check_mangle_end(struct flow_action *flow_act,
int nfp_flower_compile_action(struct nfp_app *app,
struct tc_cls_flower_offload *flow,
struct net_device *netdev,
struct nfp_fl_payload *nfp_flow)
struct nfp_fl_payload *nfp_flow,
struct netlink_ext_ack *extack)
{
int act_len, act_cnt, err, tun_out_cnt, out_cnt, i;
struct nfp_flower_pedit_acts set_act;
@ -942,7 +1024,8 @@ int nfp_flower_compile_action(struct nfp_app *app,
memset(&set_act, 0, sizeof(set_act));
err = nfp_flower_loop_action(app, act, flow, nfp_flow, &act_len,
netdev, &tun_type, &tun_out_cnt,
&out_cnt, &csum_updated, &set_act);
&out_cnt, &csum_updated, &set_act,
extack);
if (err)
return err;
act_cnt++;

4
drivers/net/ethernet/netronome/nfp/flower/lag_conf.c
View File

@ -156,7 +156,8 @@ nfp_fl_lag_find_group_for_master_with_lag(struct nfp_fl_lag *lag,
int nfp_flower_lag_populate_pre_action(struct nfp_app *app,
struct net_device *master,
struct nfp_fl_pre_lag *pre_act)
struct nfp_fl_pre_lag *pre_act,
struct netlink_ext_ack *extack)
{
struct nfp_flower_priv *priv = app->priv;
struct nfp_fl_lag_group *group = NULL;
@ -167,6 +168,7 @@ int nfp_flower_lag_populate_pre_action(struct nfp_app *app,
master);
if (!group) {
mutex_unlock(&priv->nfp_lag.lock);
NL_SET_ERR_MSG_MOD(extack, "invalid entry: group does not exist for LAG action");
return -ENOENT;
}

12
drivers/net/ethernet/netronome/nfp/flower/main.h
View File

@ -347,15 +347,18 @@ int nfp_flower_compile_flow_match(struct nfp_app *app,
struct nfp_fl_key_ls *key_ls,
struct net_device *netdev,
struct nfp_fl_payload *nfp_flow,
enum nfp_flower_tun_type tun_type);
enum nfp_flower_tun_type tun_type,
struct netlink_ext_ack *extack);
int nfp_flower_compile_action(struct nfp_app *app,
struct tc_cls_flower_offload *flow,
struct net_device *netdev,
struct nfp_fl_payload *nfp_flow);
struct nfp_fl_payload *nfp_flow,
struct netlink_ext_ack *extack);
int nfp_compile_flow_metadata(struct nfp_app *app,
struct tc_cls_flower_offload *flow,
struct nfp_fl_payload *nfp_flow,
struct net_device *netdev);
struct net_device *netdev,
struct netlink_ext_ack *extack);
void __nfp_modify_flow_metadata(struct nfp_flower_priv *priv,
struct nfp_fl_payload *nfp_flow);
int nfp_modify_flow_metadata(struct nfp_app *app,
@ -389,7 +392,8 @@ int nfp_flower_lag_netdev_event(struct nfp_flower_priv *priv,
bool nfp_flower_lag_unprocessed_msg(struct nfp_app *app, struct sk_buff *skb);
int nfp_flower_lag_populate_pre_action(struct nfp_app *app,
struct net_device *master,
struct nfp_fl_pre_lag *pre_act);
struct nfp_fl_pre_lag *pre_act,
struct netlink_ext_ack *extack);
int nfp_flower_lag_get_output_id(struct nfp_app *app,
struct net_device *master);
void nfp_flower_qos_init(struct nfp_app *app);

14
drivers/net/ethernet/netronome/nfp/flower/match.c
View File

@ -54,7 +54,8 @@ nfp_flower_compile_ext_meta(struct nfp_flower_ext_meta *frame, u32 key_ext)
static int
nfp_flower_compile_port(struct nfp_flower_in_port *frame, u32 cmsg_port,
bool mask_version, enum nfp_flower_tun_type tun_type)
bool mask_version, enum nfp_flower_tun_type tun_type,
struct netlink_ext_ack *extack)
{
if (mask_version) {
frame->in_port = cpu_to_be32(~0);
@ -64,8 +65,10 @@ nfp_flower_compile_port(struct nfp_flower_in_port *frame, u32 cmsg_port,
if (tun_type) {
frame->in_port = cpu_to_be32(NFP_FL_PORT_TYPE_TUN | tun_type);
} else {
if (!cmsg_port)
if (!cmsg_port) {
NL_SET_ERR_MSG_MOD(extack, "unsupported offload: invalid ingress interface for match offload");
return -EOPNOTSUPP;
}
frame->in_port = cpu_to_be32(cmsg_port);
}
@ -324,7 +327,8 @@ int nfp_flower_compile_flow_match(struct nfp_app *app,
struct nfp_fl_key_ls *key_ls,
struct net_device *netdev,
struct nfp_fl_payload *nfp_flow,
enum nfp_flower_tun_type tun_type)
enum nfp_flower_tun_type tun_type,
struct netlink_ext_ack *extack)
{
u32 port_id;
int err;
@ -357,13 +361,13 @@ int nfp_flower_compile_flow_match(struct nfp_app *app,
/* Populate Exact Port data. */
err = nfp_flower_compile_port((struct nfp_flower_in_port *)ext,
port_id, false, tun_type);
port_id, false, tun_type, extack);
if (err)
return err;
/* Populate Mask Port Data. */
err = nfp_flower_compile_port((struct nfp_flower_in_port *)msk,
port_id, true, tun_type);
port_id, true, tun_type, extack);
if (err)
return err;

28
drivers/net/ethernet/netronome/nfp/flower/metadata.c
View File

@ -292,7 +292,8 @@ nfp_check_mask_remove(struct nfp_app *app, char *mask_data, u32 mask_len,
int nfp_compile_flow_metadata(struct nfp_app *app,
struct tc_cls_flower_offload *flow,
struct nfp_fl_payload *nfp_flow,
struct net_device *netdev)
struct net_device *netdev,
struct netlink_ext_ack *extack)
{
struct nfp_fl_stats_ctx_to_flow *ctx_entry;
struct nfp_flower_priv *priv = app->priv;
@ -302,8 +303,10 @@ int nfp_compile_flow_metadata(struct nfp_app *app,
int err;
err = nfp_get_stats_entry(app, &stats_cxt);
if (err)
if (err) {
NL_SET_ERR_MSG_MOD(extack, "invalid entry: cannot allocate new stats context");
return err;
}
nfp_flow->meta.host_ctx_id = cpu_to_be32(stats_cxt);
nfp_flow->meta.host_cookie = cpu_to_be64(flow->cookie);
@ -328,6 +331,12 @@ int nfp_compile_flow_metadata(struct nfp_app *app,
if (!nfp_check_mask_add(app, nfp_flow->mask_data,
nfp_flow->meta.mask_len,
&nfp_flow->meta.flags, &new_mask_id)) {
NL_SET_ERR_MSG_MOD(extack, "invalid entry: cannot allocate a new mask id");
if (nfp_release_stats_entry(app, stats_cxt)) {
NL_SET_ERR_MSG_MOD(extack, "invalid entry: cannot release stats context");
err = -EINVAL;
goto err_remove_rhash;
}
err = -ENOENT;
goto err_remove_rhash;
}
@ -343,6 +352,21 @@ int nfp_compile_flow_metadata(struct nfp_app *app,
check_entry = nfp_flower_search_fl_table(app, flow->cookie, netdev);
if (check_entry) {
NL_SET_ERR_MSG_MOD(extack, "invalid entry: cannot offload duplicate flow entry");
if (nfp_release_stats_entry(app, stats_cxt)) {
NL_SET_ERR_MSG_MOD(extack, "invalid entry: cannot release stats context");
err = -EINVAL;
goto err_remove_mask;
}
if (!nfp_check_mask_remove(app, nfp_flow->mask_data,
nfp_flow->meta.mask_len,
NULL, &new_mask_id)) {
NL_SET_ERR_MSG_MOD(extack, "invalid entry: cannot release mask id");
err = -EINVAL;
goto err_remove_mask;
}
err = -EEXIST;
goto err_remove_mask;
}

10
drivers/net/ethernet/netronome/nfp/flower/offload.c
View File

@ -825,12 +825,14 @@ int nfp_flower_merge_offloaded_flows(struct nfp_app *app,
{
struct tc_cls_flower_offload merge_tc_off;
struct nfp_flower_priv *priv = app->priv;
struct netlink_ext_ack *extack = NULL;
struct nfp_fl_payload *merge_flow;
struct nfp_fl_key_ls merge_key_ls;
int err;
ASSERT_RTNL();
extack = merge_tc_off.common.extack;
if (sub_flow1 == sub_flow2 ||
nfp_flower_is_merge_flow(sub_flow1) ||
nfp_flower_is_merge_flow(sub_flow2))
@ -868,7 +870,7 @@ int nfp_flower_merge_offloaded_flows(struct nfp_app *app,
merge_tc_off.cookie = merge_flow->tc_flower_cookie;
err = nfp_compile_flow_metadata(app, &merge_tc_off, merge_flow,
merge_flow->ingress_dev);
merge_flow->ingress_dev, extack);
if (err)
goto err_unlink_sub_flow2;
@ -947,15 +949,15 @@ nfp_flower_add_offload(struct nfp_app *app, struct net_device *netdev,
}
err = nfp_flower_compile_flow_match(app, flow, key_layer, netdev,
flow_pay, tun_type);
flow_pay, tun_type, extack);
if (err)
goto err_destroy_flow;
err = nfp_flower_compile_action(app, flow, netdev, flow_pay);
err = nfp_flower_compile_action(app, flow, netdev, flow_pay, extack);
if (err)
goto err_destroy_flow;
err = nfp_compile_flow_metadata(app, flow, flow_pay, netdev);
err = nfp_compile_flow_metadata(app, flow, flow_pay, netdev, extack);
if (err)
goto err_destroy_flow;