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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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mlxsw: spectrum_dpipe: Add support for IPv4 host table dump
Add support for IPv4 host table dump. Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arkadi Sharshevsky
David S. Miller
parent
7cfcbc7591
commit
a86f030915
@ -353,6 +353,252 @@ mlxsw_sp_dpipe_table_host4_actions_dump(void *priv, struct sk_buff *skb)
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return devlink_dpipe_action_put(skb, &action);
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}
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enum mlxsw_sp_dpipe_table_host_match {
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MLXSW_SP_DPIPE_TABLE_HOST_MATCH_RIF,
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MLXSW_SP_DPIPE_TABLE_HOST_MATCH_DIP,
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MLXSW_SP_DPIPE_TABLE_HOST_MATCH_COUNT,
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};
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static void
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mlxsw_sp_dpipe_table_host_match_action_prepare(struct devlink_dpipe_match *matches,
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struct devlink_dpipe_action *action,
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int type)
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{
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struct devlink_dpipe_match *match;
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match = &matches[MLXSW_SP_DPIPE_TABLE_HOST_MATCH_RIF];
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match->type = DEVLINK_DPIPE_MATCH_TYPE_FIELD_EXACT;
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match->header = &mlxsw_sp_dpipe_header_metadata;
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match->field_id = MLXSW_SP_DPIPE_FIELD_METADATA_ERIF_PORT;
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match = &matches[MLXSW_SP_DPIPE_TABLE_HOST_MATCH_DIP];
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match->type = DEVLINK_DPIPE_MATCH_TYPE_FIELD_EXACT;
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match->header = &devlink_dpipe_header_ipv4;
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match->field_id = DEVLINK_DPIPE_FIELD_IPV4_DST_IP;
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action->type = DEVLINK_DPIPE_ACTION_TYPE_FIELD_MODIFY;
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action->header = &devlink_dpipe_header_ethernet;
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action->field_id = DEVLINK_DPIPE_FIELD_ETHERNET_DST_MAC;
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}
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static int
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mlxsw_sp_dpipe_table_host_entry_prepare(struct devlink_dpipe_entry *entry,
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struct devlink_dpipe_value *match_values,
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struct devlink_dpipe_match *matches,
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struct devlink_dpipe_value *action_value,
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struct devlink_dpipe_action *action,
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int type)
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{
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struct devlink_dpipe_value *match_value;
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struct devlink_dpipe_match *match;
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entry->match_values = match_values;
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entry->match_values_count = MLXSW_SP_DPIPE_TABLE_HOST_MATCH_COUNT;
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entry->action_values = action_value;
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entry->action_values_count = 1;
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match = &matches[MLXSW_SP_DPIPE_TABLE_HOST_MATCH_RIF];
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match_value = &match_values[MLXSW_SP_DPIPE_TABLE_HOST_MATCH_RIF];
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match_value->match = match;
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match_value->value_size = sizeof(u32);
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match_value->value = kmalloc(match_value->value_size, GFP_KERNEL);
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if (!match_value->value)
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return -ENOMEM;
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match = &matches[MLXSW_SP_DPIPE_TABLE_HOST_MATCH_DIP];
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match_value = &match_values[MLXSW_SP_DPIPE_TABLE_HOST_MATCH_DIP];
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match_value->match = match;
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match_value->value_size = sizeof(u32);
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match_value->value = kmalloc(match_value->value_size, GFP_KERNEL);
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if (!match_value->value)
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return -ENOMEM;
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action_value->action = action;
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action_value->value_size = sizeof(u64);
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action_value->value = kmalloc(action_value->value_size, GFP_KERNEL);
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if (!action_value->value)
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return -ENOMEM;
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return 0;
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}
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static void
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__mlxsw_sp_dpipe_table_host4_entry_fill(struct devlink_dpipe_entry *entry,
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struct mlxsw_sp_rif *rif,
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unsigned char *ha, u32 dip)
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{
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struct devlink_dpipe_value *value;
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u32 *rif_value;
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u32 *dip_value;
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u8 *ha_value;
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/* Set Match RIF index */
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value = &entry->match_values[MLXSW_SP_DPIPE_TABLE_HOST_MATCH_RIF];
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rif_value = value->value;
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*rif_value = mlxsw_sp_rif_index(rif);
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value->mapping_value = mlxsw_sp_rif_dev_ifindex(rif);
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value->mapping_valid = true;
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/* Set Match DIP */
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value = &entry->match_values[MLXSW_SP_DPIPE_TABLE_HOST_MATCH_DIP];
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dip_value = value->value;
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*dip_value = dip;
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/* Set Action DMAC */
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value = entry->action_values;
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ha_value = value->value;
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ether_addr_copy(ha_value, ha);
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}
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static void
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mlxsw_sp_dpipe_table_host4_entry_fill(struct devlink_dpipe_entry *entry,
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struct mlxsw_sp_neigh_entry *neigh_entry,
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struct mlxsw_sp_rif *rif)
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{
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unsigned char *ha;
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u32 dip;
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ha = mlxsw_sp_neigh_entry_ha(neigh_entry);
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dip = mlxsw_sp_neigh4_entry_dip(neigh_entry);
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__mlxsw_sp_dpipe_table_host4_entry_fill(entry, rif, ha, dip);
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}
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static void
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mlxsw_sp_dpipe_table_host_entry_fill(struct mlxsw_sp *mlxsw_sp,
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struct devlink_dpipe_entry *entry,
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struct mlxsw_sp_neigh_entry *neigh_entry,
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struct mlxsw_sp_rif *rif,
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int type)
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{
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int err;
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mlxsw_sp_dpipe_table_host4_entry_fill(entry, neigh_entry, rif);
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err = mlxsw_sp_neigh_counter_get(mlxsw_sp, neigh_entry,
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&entry->counter);
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if (!err)
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entry->counter_valid = true;
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}
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static int
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mlxsw_sp_dpipe_table_host_entries_get(struct mlxsw_sp *mlxsw_sp,
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struct devlink_dpipe_entry *entry,
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bool counters_enabled,
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struct devlink_dpipe_dump_ctx *dump_ctx,
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int type)
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{
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int rif_neigh_count = 0;
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int rif_neigh_skip = 0;
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int neigh_count = 0;
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int rif_count;
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int i, j;
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int err;
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rtnl_lock();
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i = 0;
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rif_count = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_RIFS);
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start_again:
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err = devlink_dpipe_entry_ctx_prepare(dump_ctx);
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if (err)
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goto err_ctx_prepare;
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j = 0;
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rif_neigh_skip = rif_neigh_count;
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for (; i < MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_RIFS); i++) {
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struct mlxsw_sp_rif *rif = mlxsw_sp_rif_by_index(mlxsw_sp, i);
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struct mlxsw_sp_neigh_entry *neigh_entry;
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if (!rif)
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continue;
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rif_neigh_count = 0;
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mlxsw_sp_rif_neigh_for_each(neigh_entry, rif) {
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if (rif_neigh_count < rif_neigh_skip)
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goto skip;
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mlxsw_sp_dpipe_table_host_entry_fill(mlxsw_sp, entry,
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neigh_entry, rif,
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type);
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entry->index = neigh_count;
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err = devlink_dpipe_entry_ctx_append(dump_ctx, entry);
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if (err) {
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if (err == -EMSGSIZE) {
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if (!j)
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goto err_entry_append;
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else
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goto out;
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}
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goto err_entry_append;
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}
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neigh_count++;
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j++;
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skip:
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rif_neigh_count++;
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}
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rif_neigh_skip = 0;
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}
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out:
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devlink_dpipe_entry_ctx_close(dump_ctx);
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if (i != rif_count)
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goto start_again;
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rtnl_unlock();
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return 0;
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err_ctx_prepare:
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err_entry_append:
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rtnl_unlock();
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return err;
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}
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static int
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mlxsw_sp_dpipe_table_host_entries_dump(struct mlxsw_sp *mlxsw_sp,
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bool counters_enabled,
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struct devlink_dpipe_dump_ctx *dump_ctx,
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int type)
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{
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struct devlink_dpipe_value match_values[MLXSW_SP_DPIPE_TABLE_HOST_MATCH_COUNT];
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struct devlink_dpipe_match matches[MLXSW_SP_DPIPE_TABLE_HOST_MATCH_COUNT];
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struct devlink_dpipe_value action_value;
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struct devlink_dpipe_action action = {0};
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struct devlink_dpipe_entry entry = {0};
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int err;
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memset(matches, 0, MLXSW_SP_DPIPE_TABLE_HOST_MATCH_COUNT *
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sizeof(matches[0]));
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memset(match_values, 0, MLXSW_SP_DPIPE_TABLE_HOST_MATCH_COUNT *
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sizeof(match_values[0]));
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memset(&action_value, 0, sizeof(action_value));
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mlxsw_sp_dpipe_table_host_match_action_prepare(matches, &action, type);
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err = mlxsw_sp_dpipe_table_host_entry_prepare(&entry, match_values,
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matches, &action_value,
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&action, type);
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if (err)
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goto out;
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err = mlxsw_sp_dpipe_table_host_entries_get(mlxsw_sp, &entry,
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counters_enabled, dump_ctx,
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type);
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out:
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devlink_dpipe_entry_clear(&entry);
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return err;
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}
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static int
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mlxsw_sp_dpipe_table_host4_entries_dump(void *priv, bool counters_enabled,
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struct devlink_dpipe_dump_ctx *dump_ctx)
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{
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struct mlxsw_sp *mlxsw_sp = priv;
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return mlxsw_sp_dpipe_table_host_entries_dump(mlxsw_sp,
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counters_enabled,
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dump_ctx, AF_INET);
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}
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static u64
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mlxsw_sp_dpipe_table_host_size_get(struct mlxsw_sp *mlxsw_sp, int type)
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{
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@ -387,6 +633,7 @@ static u64 mlxsw_sp_dpipe_table_host4_size_get(void *priv)
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static struct devlink_dpipe_table_ops mlxsw_sp_host4_ops = {
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.matches_dump = mlxsw_sp_dpipe_table_host4_matches_dump,
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.actions_dump = mlxsw_sp_dpipe_table_host4_actions_dump,
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.entries_dump = mlxsw_sp_dpipe_table_host4_entries_dump,
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.size_get = mlxsw_sp_dpipe_table_host4_size_get,
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};
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