diff --git a/drivers/net/ethernet/mellanox/mlxsw/Makefile b/drivers/net/ethernet/mellanox/mlxsw/Makefile index 68fa44a41485319d894345db7e5e09efc05b7fbf..1f77e97e2d7aa6b07e265de0ddb7338d75c59611 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/Makefile +++ b/drivers/net/ethernet/mellanox/mlxsw/Makefile @@ -27,7 +27,8 @@ mlxsw_spectrum-objs := spectrum.o spectrum_buffers.o \ spectrum_acl_flex_keys.o \ spectrum1_mr_tcam.o spectrum2_mr_tcam.o \ spectrum_mr_tcam.o spectrum_mr.o \ - spectrum_qdisc.o spectrum_span.o + spectrum_qdisc.o spectrum_span.o \ + spectrum_nve.o spectrum_nve_vxlan.o mlxsw_spectrum-$(CONFIG_MLXSW_SPECTRUM_DCB) += spectrum_dcb.o mlxsw_spectrum-$(CONFIG_NET_DEVLINK) += spectrum_dpipe.o obj-$(CONFIG_MLXSW_MINIMAL) += mlxsw_minimal.o diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c index ed7e4c4e740379f6655d36abb8322925a9287981..68079b16adfa0252843208a379623e9fe95adc6f 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c @@ -2994,6 +2994,13 @@ static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port, goto err_port_qdiscs_init; } + err = mlxsw_sp_port_nve_init(mlxsw_sp_port); + if (err) { + dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize NVE\n", + mlxsw_sp_port->local_port); + goto err_port_nve_init; + } + mlxsw_sp_port_vlan = mlxsw_sp_port_vlan_get(mlxsw_sp_port, 1); if (IS_ERR(mlxsw_sp_port_vlan)) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to create VID 1\n", @@ -3022,6 +3029,8 @@ static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port, mlxsw_sp_port_switchdev_fini(mlxsw_sp_port); mlxsw_sp_port_vlan_put(mlxsw_sp_port_vlan); err_port_vlan_get: + mlxsw_sp_port_nve_fini(mlxsw_sp_port); +err_port_nve_init: mlxsw_sp_tc_qdisc_fini(mlxsw_sp_port); err_port_qdiscs_init: mlxsw_sp_port_fids_fini(mlxsw_sp_port); @@ -3061,6 +3070,7 @@ static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port) mlxsw_sp->ports[local_port] = NULL; mlxsw_sp_port_switchdev_fini(mlxsw_sp_port); mlxsw_sp_port_vlan_flush(mlxsw_sp_port); + mlxsw_sp_port_nve_fini(mlxsw_sp_port); mlxsw_sp_tc_qdisc_fini(mlxsw_sp_port); mlxsw_sp_port_fids_fini(mlxsw_sp_port); mlxsw_sp_port_dcb_fini(mlxsw_sp_port); @@ -3795,6 +3805,12 @@ static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core, goto err_afa_init; } + err = mlxsw_sp_nve_init(mlxsw_sp); + if (err) { + dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize NVE\n"); + goto err_nve_init; + } + err = mlxsw_sp_router_init(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize router\n"); @@ -3841,6 +3857,8 @@ static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core, err_netdev_notifier: mlxsw_sp_router_fini(mlxsw_sp); err_router_init: + mlxsw_sp_nve_fini(mlxsw_sp); +err_nve_init: mlxsw_sp_afa_fini(mlxsw_sp); err_afa_init: mlxsw_sp_counter_pool_fini(mlxsw_sp); @@ -3873,6 +3891,7 @@ static int mlxsw_sp1_init(struct mlxsw_core *mlxsw_core, mlxsw_sp->afk_ops = &mlxsw_sp1_afk_ops; mlxsw_sp->mr_tcam_ops = &mlxsw_sp1_mr_tcam_ops; mlxsw_sp->acl_tcam_ops = &mlxsw_sp1_acl_tcam_ops; + mlxsw_sp->nve_ops_arr = mlxsw_sp1_nve_ops_arr; return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info); } @@ -3887,6 +3906,7 @@ static int mlxsw_sp2_init(struct mlxsw_core *mlxsw_core, mlxsw_sp->afk_ops = &mlxsw_sp2_afk_ops; mlxsw_sp->mr_tcam_ops = &mlxsw_sp2_mr_tcam_ops; mlxsw_sp->acl_tcam_ops = &mlxsw_sp2_acl_tcam_ops; + mlxsw_sp->nve_ops_arr = mlxsw_sp2_nve_ops_arr; return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info); } @@ -3900,6 +3920,7 @@ static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core) mlxsw_sp_acl_fini(mlxsw_sp); unregister_netdevice_notifier(&mlxsw_sp->netdevice_nb); mlxsw_sp_router_fini(mlxsw_sp); + mlxsw_sp_nve_fini(mlxsw_sp); mlxsw_sp_afa_fini(mlxsw_sp); mlxsw_sp_counter_pool_fini(mlxsw_sp); mlxsw_sp_switchdev_fini(mlxsw_sp); diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h index d0a73935e8bb70a1db907e391c83b9773388bf06..2d5eca78576a68d34a94d8dca8fc2959fa5bca1f 100644 --- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h @@ -55,6 +55,8 @@ enum mlxsw_sp_resource_id { struct mlxsw_sp_port; struct mlxsw_sp_rif; struct mlxsw_sp_span_entry; +enum mlxsw_sp_l3proto; +union mlxsw_sp_l3addr; struct mlxsw_sp_upper { struct net_device *dev; @@ -113,9 +115,11 @@ struct mlxsw_sp_acl; struct mlxsw_sp_counter_pool; struct mlxsw_sp_fid_core; struct mlxsw_sp_kvdl; +struct mlxsw_sp_nve; struct mlxsw_sp_kvdl_ops; struct mlxsw_sp_mr_tcam_ops; struct mlxsw_sp_acl_tcam_ops; +struct mlxsw_sp_nve_ops; struct mlxsw_sp { struct mlxsw_sp_port **ports; @@ -132,6 +136,7 @@ struct mlxsw_sp { struct mlxsw_sp_acl *acl; struct mlxsw_sp_fid_core *fid_core; struct mlxsw_sp_kvdl *kvdl; + struct mlxsw_sp_nve *nve; struct notifier_block netdevice_nb; struct mlxsw_sp_counter_pool *counter_pool; @@ -146,6 +151,7 @@ struct mlxsw_sp { const struct mlxsw_afk_ops *afk_ops; const struct mlxsw_sp_mr_tcam_ops *mr_tcam_ops; const struct mlxsw_sp_acl_tcam_ops *acl_tcam_ops; + const struct mlxsw_sp_nve_ops **nve_ops_arr; }; static inline struct mlxsw_sp_upper * @@ -763,4 +769,39 @@ extern const struct mlxsw_sp_mr_tcam_ops mlxsw_sp1_mr_tcam_ops; /* spectrum2_mr_tcam.c */ extern const struct mlxsw_sp_mr_tcam_ops mlxsw_sp2_mr_tcam_ops; +/* spectrum_nve.c */ +enum mlxsw_sp_nve_type { + MLXSW_SP_NVE_TYPE_VXLAN, +}; + +struct mlxsw_sp_nve_params { + enum mlxsw_sp_nve_type type; + __be32 vni; + const struct net_device *dev; +}; + +extern const struct mlxsw_sp_nve_ops *mlxsw_sp1_nve_ops_arr[]; +extern const struct mlxsw_sp_nve_ops *mlxsw_sp2_nve_ops_arr[]; + +int mlxsw_sp_nve_flood_ip_add(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fid *fid, + enum mlxsw_sp_l3proto proto, + union mlxsw_sp_l3addr *addr); +void mlxsw_sp_nve_flood_ip_del(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fid *fid, + enum mlxsw_sp_l3proto proto, + union mlxsw_sp_l3addr *addr); +u32 mlxsw_sp_nve_decap_tunnel_index_get(const struct mlxsw_sp *mlxsw_sp); +bool mlxsw_sp_nve_ipv4_route_is_decap(const struct mlxsw_sp *mlxsw_sp, + u32 tb_id, __be32 addr); +int mlxsw_sp_nve_fid_enable(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *fid, + struct mlxsw_sp_nve_params *params, + struct netlink_ext_ack *extack); +void mlxsw_sp_nve_fid_disable(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fid *fid); +int mlxsw_sp_port_nve_init(struct mlxsw_sp_port *mlxsw_sp_port); +void mlxsw_sp_port_nve_fini(struct mlxsw_sp_port *mlxsw_sp_port); +int mlxsw_sp_nve_init(struct mlxsw_sp *mlxsw_sp); +void mlxsw_sp_nve_fini(struct mlxsw_sp *mlxsw_sp); + #endif diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c new file mode 100644 index 0000000000000000000000000000000000000000..ad06d9969bc13eb465a82b9138bc0ea342ab15e9 --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.c @@ -0,0 +1,982 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2018 Mellanox Technologies. All rights reserved */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "reg.h" +#include "spectrum.h" +#include "spectrum_nve.h" + +const struct mlxsw_sp_nve_ops *mlxsw_sp1_nve_ops_arr[] = { + [MLXSW_SP_NVE_TYPE_VXLAN] = &mlxsw_sp1_nve_vxlan_ops, +}; + +const struct mlxsw_sp_nve_ops *mlxsw_sp2_nve_ops_arr[] = { + [MLXSW_SP_NVE_TYPE_VXLAN] = &mlxsw_sp2_nve_vxlan_ops, +}; + +struct mlxsw_sp_nve_mc_entry; +struct mlxsw_sp_nve_mc_record; +struct mlxsw_sp_nve_mc_list; + +struct mlxsw_sp_nve_mc_record_ops { + enum mlxsw_reg_tnumt_record_type type; + int (*entry_add)(struct mlxsw_sp_nve_mc_record *mc_record, + struct mlxsw_sp_nve_mc_entry *mc_entry, + const union mlxsw_sp_l3addr *addr); + void (*entry_del)(const struct mlxsw_sp_nve_mc_record *mc_record, + const struct mlxsw_sp_nve_mc_entry *mc_entry); + void (*entry_set)(const struct mlxsw_sp_nve_mc_record *mc_record, + const struct mlxsw_sp_nve_mc_entry *mc_entry, + char *tnumt_pl, unsigned int entry_index); + bool (*entry_compare)(const struct mlxsw_sp_nve_mc_record *mc_record, + const struct mlxsw_sp_nve_mc_entry *mc_entry, + const union mlxsw_sp_l3addr *addr); +}; + +struct mlxsw_sp_nve_mc_list_key { + u16 fid_index; +}; + +struct mlxsw_sp_nve_mc_ipv6_entry { + struct in6_addr addr6; + u32 addr6_kvdl_index; +}; + +struct mlxsw_sp_nve_mc_entry { + union { + __be32 addr4; + struct mlxsw_sp_nve_mc_ipv6_entry ipv6_entry; + }; + u8 valid:1; +}; + +struct mlxsw_sp_nve_mc_record { + struct list_head list; + enum mlxsw_sp_l3proto proto; + unsigned int num_entries; + struct mlxsw_sp *mlxsw_sp; + struct mlxsw_sp_nve_mc_list *mc_list; + const struct mlxsw_sp_nve_mc_record_ops *ops; + u32 kvdl_index; + struct mlxsw_sp_nve_mc_entry entries[0]; +}; + +struct mlxsw_sp_nve_mc_list { + struct list_head records_list; + struct rhash_head ht_node; + struct mlxsw_sp_nve_mc_list_key key; +}; + +static const struct rhashtable_params mlxsw_sp_nve_mc_list_ht_params = { + .key_len = sizeof(struct mlxsw_sp_nve_mc_list_key), + .key_offset = offsetof(struct mlxsw_sp_nve_mc_list, key), + .head_offset = offsetof(struct mlxsw_sp_nve_mc_list, ht_node), +}; + +static int +mlxsw_sp_nve_mc_record_ipv4_entry_add(struct mlxsw_sp_nve_mc_record *mc_record, + struct mlxsw_sp_nve_mc_entry *mc_entry, + const union mlxsw_sp_l3addr *addr) +{ + mc_entry->addr4 = addr->addr4; + + return 0; +} + +static void +mlxsw_sp_nve_mc_record_ipv4_entry_del(const struct mlxsw_sp_nve_mc_record *mc_record, + const struct mlxsw_sp_nve_mc_entry *mc_entry) +{ +} + +static void +mlxsw_sp_nve_mc_record_ipv4_entry_set(const struct mlxsw_sp_nve_mc_record *mc_record, + const struct mlxsw_sp_nve_mc_entry *mc_entry, + char *tnumt_pl, unsigned int entry_index) +{ + u32 udip = be32_to_cpu(mc_entry->addr4); + + mlxsw_reg_tnumt_udip_set(tnumt_pl, entry_index, udip); +} + +static bool +mlxsw_sp_nve_mc_record_ipv4_entry_compare(const struct mlxsw_sp_nve_mc_record *mc_record, + const struct mlxsw_sp_nve_mc_entry *mc_entry, + const union mlxsw_sp_l3addr *addr) +{ + return mc_entry->addr4 == addr->addr4; +} + +static const struct mlxsw_sp_nve_mc_record_ops +mlxsw_sp_nve_mc_record_ipv4_ops = { + .type = MLXSW_REG_TNUMT_RECORD_TYPE_IPV4, + .entry_add = &mlxsw_sp_nve_mc_record_ipv4_entry_add, + .entry_del = &mlxsw_sp_nve_mc_record_ipv4_entry_del, + .entry_set = &mlxsw_sp_nve_mc_record_ipv4_entry_set, + .entry_compare = &mlxsw_sp_nve_mc_record_ipv4_entry_compare, +}; + +static int +mlxsw_sp_nve_mc_record_ipv6_entry_add(struct mlxsw_sp_nve_mc_record *mc_record, + struct mlxsw_sp_nve_mc_entry *mc_entry, + const union mlxsw_sp_l3addr *addr) +{ + WARN_ON(1); + + return -EINVAL; +} + +static void +mlxsw_sp_nve_mc_record_ipv6_entry_del(const struct mlxsw_sp_nve_mc_record *mc_record, + const struct mlxsw_sp_nve_mc_entry *mc_entry) +{ +} + +static void +mlxsw_sp_nve_mc_record_ipv6_entry_set(const struct mlxsw_sp_nve_mc_record *mc_record, + const struct mlxsw_sp_nve_mc_entry *mc_entry, + char *tnumt_pl, unsigned int entry_index) +{ + u32 udip_ptr = mc_entry->ipv6_entry.addr6_kvdl_index; + + mlxsw_reg_tnumt_udip_ptr_set(tnumt_pl, entry_index, udip_ptr); +} + +static bool +mlxsw_sp_nve_mc_record_ipv6_entry_compare(const struct mlxsw_sp_nve_mc_record *mc_record, + const struct mlxsw_sp_nve_mc_entry *mc_entry, + const union mlxsw_sp_l3addr *addr) +{ + return ipv6_addr_equal(&mc_entry->ipv6_entry.addr6, &addr->addr6); +} + +static const struct mlxsw_sp_nve_mc_record_ops +mlxsw_sp_nve_mc_record_ipv6_ops = { + .type = MLXSW_REG_TNUMT_RECORD_TYPE_IPV6, + .entry_add = &mlxsw_sp_nve_mc_record_ipv6_entry_add, + .entry_del = &mlxsw_sp_nve_mc_record_ipv6_entry_del, + .entry_set = &mlxsw_sp_nve_mc_record_ipv6_entry_set, + .entry_compare = &mlxsw_sp_nve_mc_record_ipv6_entry_compare, +}; + +static const struct mlxsw_sp_nve_mc_record_ops * +mlxsw_sp_nve_mc_record_ops_arr[] = { + [MLXSW_SP_L3_PROTO_IPV4] = &mlxsw_sp_nve_mc_record_ipv4_ops, + [MLXSW_SP_L3_PROTO_IPV6] = &mlxsw_sp_nve_mc_record_ipv6_ops, +}; + +static struct mlxsw_sp_nve_mc_list * +mlxsw_sp_nve_mc_list_find(struct mlxsw_sp *mlxsw_sp, + const struct mlxsw_sp_nve_mc_list_key *key) +{ + struct mlxsw_sp_nve *nve = mlxsw_sp->nve; + + return rhashtable_lookup_fast(&nve->mc_list_ht, key, + mlxsw_sp_nve_mc_list_ht_params); +} + +static struct mlxsw_sp_nve_mc_list * +mlxsw_sp_nve_mc_list_create(struct mlxsw_sp *mlxsw_sp, + const struct mlxsw_sp_nve_mc_list_key *key) +{ + struct mlxsw_sp_nve *nve = mlxsw_sp->nve; + struct mlxsw_sp_nve_mc_list *mc_list; + int err; + + mc_list = kmalloc(sizeof(*mc_list), GFP_KERNEL); + if (!mc_list) + return ERR_PTR(-ENOMEM); + + INIT_LIST_HEAD(&mc_list->records_list); + mc_list->key = *key; + + err = rhashtable_insert_fast(&nve->mc_list_ht, &mc_list->ht_node, + mlxsw_sp_nve_mc_list_ht_params); + if (err) + goto err_rhashtable_insert; + + return mc_list; + +err_rhashtable_insert: + kfree(mc_list); + return ERR_PTR(err); +} + +static void mlxsw_sp_nve_mc_list_destroy(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nve_mc_list *mc_list) +{ + struct mlxsw_sp_nve *nve = mlxsw_sp->nve; + + rhashtable_remove_fast(&nve->mc_list_ht, &mc_list->ht_node, + mlxsw_sp_nve_mc_list_ht_params); + WARN_ON(!list_empty(&mc_list->records_list)); + kfree(mc_list); +} + +static struct mlxsw_sp_nve_mc_list * +mlxsw_sp_nve_mc_list_get(struct mlxsw_sp *mlxsw_sp, + const struct mlxsw_sp_nve_mc_list_key *key) +{ + struct mlxsw_sp_nve_mc_list *mc_list; + + mc_list = mlxsw_sp_nve_mc_list_find(mlxsw_sp, key); + if (mc_list) + return mc_list; + + return mlxsw_sp_nve_mc_list_create(mlxsw_sp, key); +} + +static void +mlxsw_sp_nve_mc_list_put(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nve_mc_list *mc_list) +{ + if (!list_empty(&mc_list->records_list)) + return; + mlxsw_sp_nve_mc_list_destroy(mlxsw_sp, mc_list); +} + +static struct mlxsw_sp_nve_mc_record * +mlxsw_sp_nve_mc_record_create(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nve_mc_list *mc_list, + enum mlxsw_sp_l3proto proto) +{ + unsigned int num_max_entries = mlxsw_sp->nve->num_max_mc_entries[proto]; + struct mlxsw_sp_nve_mc_record *mc_record; + int err; + + mc_record = kzalloc(sizeof(*mc_record) + num_max_entries * + sizeof(struct mlxsw_sp_nve_mc_entry), GFP_KERNEL); + if (!mc_record) + return ERR_PTR(-ENOMEM); + + err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_TNUMT, 1, + &mc_record->kvdl_index); + if (err) + goto err_kvdl_alloc; + + mc_record->ops = mlxsw_sp_nve_mc_record_ops_arr[proto]; + mc_record->mlxsw_sp = mlxsw_sp; + mc_record->mc_list = mc_list; + mc_record->proto = proto; + list_add_tail(&mc_record->list, &mc_list->records_list); + + return mc_record; + +err_kvdl_alloc: + kfree(mc_record); + return ERR_PTR(err); +} + +static void +mlxsw_sp_nve_mc_record_destroy(struct mlxsw_sp_nve_mc_record *mc_record) +{ + struct mlxsw_sp *mlxsw_sp = mc_record->mlxsw_sp; + + list_del(&mc_record->list); + mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_TNUMT, 1, + mc_record->kvdl_index); + WARN_ON(mc_record->num_entries); + kfree(mc_record); +} + +static struct mlxsw_sp_nve_mc_record * +mlxsw_sp_nve_mc_record_get(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nve_mc_list *mc_list, + enum mlxsw_sp_l3proto proto) +{ + struct mlxsw_sp_nve_mc_record *mc_record; + + list_for_each_entry_reverse(mc_record, &mc_list->records_list, list) { + unsigned int num_entries = mc_record->num_entries; + struct mlxsw_sp_nve *nve = mlxsw_sp->nve; + + if (mc_record->proto == proto && + num_entries < nve->num_max_mc_entries[proto]) + return mc_record; + } + + return mlxsw_sp_nve_mc_record_create(mlxsw_sp, mc_list, proto); +} + +static void +mlxsw_sp_nve_mc_record_put(struct mlxsw_sp_nve_mc_record *mc_record) +{ + if (mc_record->num_entries != 0) + return; + + mlxsw_sp_nve_mc_record_destroy(mc_record); +} + +static struct mlxsw_sp_nve_mc_entry * +mlxsw_sp_nve_mc_free_entry_find(struct mlxsw_sp_nve_mc_record *mc_record) +{ + struct mlxsw_sp_nve *nve = mc_record->mlxsw_sp->nve; + unsigned int num_max_entries; + int i; + + num_max_entries = nve->num_max_mc_entries[mc_record->proto]; + for (i = 0; i < num_max_entries; i++) { + if (mc_record->entries[i].valid) + continue; + return &mc_record->entries[i]; + } + + return NULL; +} + +static int +mlxsw_sp_nve_mc_record_refresh(struct mlxsw_sp_nve_mc_record *mc_record) +{ + enum mlxsw_reg_tnumt_record_type type = mc_record->ops->type; + struct mlxsw_sp_nve_mc_list *mc_list = mc_record->mc_list; + struct mlxsw_sp *mlxsw_sp = mc_record->mlxsw_sp; + char tnumt_pl[MLXSW_REG_TNUMT_LEN]; + unsigned int num_max_entries; + unsigned int num_entries = 0; + u32 next_kvdl_index = 0; + bool next_valid = false; + int i; + + if (!list_is_last(&mc_record->list, &mc_list->records_list)) { + struct mlxsw_sp_nve_mc_record *next_record; + + next_record = list_next_entry(mc_record, list); + next_kvdl_index = next_record->kvdl_index; + next_valid = true; + } + + mlxsw_reg_tnumt_pack(tnumt_pl, type, MLXSW_REG_TNUMT_TUNNEL_PORT_NVE, + mc_record->kvdl_index, next_valid, + next_kvdl_index, mc_record->num_entries); + + num_max_entries = mlxsw_sp->nve->num_max_mc_entries[mc_record->proto]; + for (i = 0; i < num_max_entries; i++) { + struct mlxsw_sp_nve_mc_entry *mc_entry; + + mc_entry = &mc_record->entries[i]; + if (!mc_entry->valid) + continue; + mc_record->ops->entry_set(mc_record, mc_entry, tnumt_pl, + num_entries++); + } + + WARN_ON(num_entries != mc_record->num_entries); + + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tnumt), tnumt_pl); +} + +static bool +mlxsw_sp_nve_mc_record_is_first(struct mlxsw_sp_nve_mc_record *mc_record) +{ + struct mlxsw_sp_nve_mc_list *mc_list = mc_record->mc_list; + struct mlxsw_sp_nve_mc_record *first_record; + + first_record = list_first_entry(&mc_list->records_list, + struct mlxsw_sp_nve_mc_record, list); + + return mc_record == first_record; +} + +static struct mlxsw_sp_nve_mc_entry * +mlxsw_sp_nve_mc_entry_find(struct mlxsw_sp_nve_mc_record *mc_record, + union mlxsw_sp_l3addr *addr) +{ + struct mlxsw_sp_nve *nve = mc_record->mlxsw_sp->nve; + unsigned int num_max_entries; + int i; + + num_max_entries = nve->num_max_mc_entries[mc_record->proto]; + for (i = 0; i < num_max_entries; i++) { + struct mlxsw_sp_nve_mc_entry *mc_entry; + + mc_entry = &mc_record->entries[i]; + if (!mc_entry->valid) + continue; + if (mc_record->ops->entry_compare(mc_record, mc_entry, addr)) + return mc_entry; + } + + return NULL; +} + +static int +mlxsw_sp_nve_mc_record_ip_add(struct mlxsw_sp_nve_mc_record *mc_record, + union mlxsw_sp_l3addr *addr) +{ + struct mlxsw_sp_nve_mc_entry *mc_entry = NULL; + int err; + + mc_entry = mlxsw_sp_nve_mc_free_entry_find(mc_record); + if (WARN_ON(!mc_entry)) + return -EINVAL; + + err = mc_record->ops->entry_add(mc_record, mc_entry, addr); + if (err) + return err; + mc_record->num_entries++; + mc_entry->valid = true; + + err = mlxsw_sp_nve_mc_record_refresh(mc_record); + if (err) + goto err_record_refresh; + + /* If this is a new record and not the first one, then we need to + * update the next pointer of the previous entry + */ + if (mc_record->num_entries != 1 || + mlxsw_sp_nve_mc_record_is_first(mc_record)) + return 0; + + err = mlxsw_sp_nve_mc_record_refresh(list_prev_entry(mc_record, list)); + if (err) + goto err_prev_record_refresh; + + return 0; + +err_prev_record_refresh: +err_record_refresh: + mc_entry->valid = false; + mc_record->num_entries--; + mc_record->ops->entry_del(mc_record, mc_entry); + return err; +} + +static void +mlxsw_sp_nve_mc_record_entry_del(struct mlxsw_sp_nve_mc_record *mc_record, + struct mlxsw_sp_nve_mc_entry *mc_entry) +{ + struct mlxsw_sp_nve_mc_list *mc_list = mc_record->mc_list; + + mc_entry->valid = false; + mc_record->num_entries--; + + /* When the record continues to exist we only need to invalidate + * the requested entry + */ + if (mc_record->num_entries != 0) { + mlxsw_sp_nve_mc_record_refresh(mc_record); + mc_record->ops->entry_del(mc_record, mc_entry); + return; + } + + /* If the record needs to be deleted, but it is not the first, + * then we need to make sure that the previous record no longer + * points to it. Remove deleted record from the list to reflect + * that and then re-add it at the end, so that it could be + * properly removed by the record destruction code + */ + if (!mlxsw_sp_nve_mc_record_is_first(mc_record)) { + struct mlxsw_sp_nve_mc_record *prev_record; + + prev_record = list_prev_entry(mc_record, list); + list_del(&mc_record->list); + mlxsw_sp_nve_mc_record_refresh(prev_record); + list_add_tail(&mc_record->list, &mc_list->records_list); + mc_record->ops->entry_del(mc_record, mc_entry); + return; + } + + /* If the first record needs to be deleted, but the list is not + * singular, then the second record needs to be written in the + * first record's address, as this address is stored as a property + * of the FID + */ + if (mlxsw_sp_nve_mc_record_is_first(mc_record) && + !list_is_singular(&mc_list->records_list)) { + struct mlxsw_sp_nve_mc_record *next_record; + + next_record = list_next_entry(mc_record, list); + swap(mc_record->kvdl_index, next_record->kvdl_index); + mlxsw_sp_nve_mc_record_refresh(next_record); + mc_record->ops->entry_del(mc_record, mc_entry); + return; + } + + /* This is the last case where the last remaining record needs to + * be deleted. Simply delete the entry + */ + mc_record->ops->entry_del(mc_record, mc_entry); +} + +static struct mlxsw_sp_nve_mc_record * +mlxsw_sp_nve_mc_record_find(struct mlxsw_sp_nve_mc_list *mc_list, + enum mlxsw_sp_l3proto proto, + union mlxsw_sp_l3addr *addr, + struct mlxsw_sp_nve_mc_entry **mc_entry) +{ + struct mlxsw_sp_nve_mc_record *mc_record; + + list_for_each_entry(mc_record, &mc_list->records_list, list) { + if (mc_record->proto != proto) + continue; + + *mc_entry = mlxsw_sp_nve_mc_entry_find(mc_record, addr); + if (*mc_entry) + return mc_record; + } + + return NULL; +} + +static int mlxsw_sp_nve_mc_list_ip_add(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nve_mc_list *mc_list, + enum mlxsw_sp_l3proto proto, + union mlxsw_sp_l3addr *addr) +{ + struct mlxsw_sp_nve_mc_record *mc_record; + int err; + + mc_record = mlxsw_sp_nve_mc_record_get(mlxsw_sp, mc_list, proto); + if (IS_ERR(mc_record)) + return PTR_ERR(mc_record); + + err = mlxsw_sp_nve_mc_record_ip_add(mc_record, addr); + if (err) + goto err_ip_add; + + return 0; + +err_ip_add: + mlxsw_sp_nve_mc_record_put(mc_record); + return err; +} + +static void mlxsw_sp_nve_mc_list_ip_del(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nve_mc_list *mc_list, + enum mlxsw_sp_l3proto proto, + union mlxsw_sp_l3addr *addr) +{ + struct mlxsw_sp_nve_mc_record *mc_record; + struct mlxsw_sp_nve_mc_entry *mc_entry; + + mc_record = mlxsw_sp_nve_mc_record_find(mc_list, proto, addr, + &mc_entry); + if (WARN_ON(!mc_record)) + return; + + mlxsw_sp_nve_mc_record_entry_del(mc_record, mc_entry); + mlxsw_sp_nve_mc_record_put(mc_record); +} + +static int +mlxsw_sp_nve_fid_flood_index_set(struct mlxsw_sp_fid *fid, + struct mlxsw_sp_nve_mc_list *mc_list) +{ + struct mlxsw_sp_nve_mc_record *mc_record; + + /* The address of the first record in the list is a property of + * the FID and we never change it. It only needs to be set when + * a new list is created + */ + if (mlxsw_sp_fid_nve_flood_index_is_set(fid)) + return 0; + + mc_record = list_first_entry(&mc_list->records_list, + struct mlxsw_sp_nve_mc_record, list); + + return mlxsw_sp_fid_nve_flood_index_set(fid, mc_record->kvdl_index); +} + +static void +mlxsw_sp_nve_fid_flood_index_clear(struct mlxsw_sp_fid *fid, + struct mlxsw_sp_nve_mc_list *mc_list) +{ + struct mlxsw_sp_nve_mc_record *mc_record; + + /* The address of the first record needs to be invalidated only when + * the last record is about to be removed + */ + if (!list_is_singular(&mc_list->records_list)) + return; + + mc_record = list_first_entry(&mc_list->records_list, + struct mlxsw_sp_nve_mc_record, list); + if (mc_record->num_entries != 1) + return; + + return mlxsw_sp_fid_nve_flood_index_clear(fid); +} + +int mlxsw_sp_nve_flood_ip_add(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fid *fid, + enum mlxsw_sp_l3proto proto, + union mlxsw_sp_l3addr *addr) +{ + struct mlxsw_sp_nve_mc_list_key key = { 0 }; + struct mlxsw_sp_nve_mc_list *mc_list; + int err; + + key.fid_index = mlxsw_sp_fid_index(fid); + mc_list = mlxsw_sp_nve_mc_list_get(mlxsw_sp, &key); + if (IS_ERR(mc_list)) + return PTR_ERR(mc_list); + + err = mlxsw_sp_nve_mc_list_ip_add(mlxsw_sp, mc_list, proto, addr); + if (err) + goto err_add_ip; + + err = mlxsw_sp_nve_fid_flood_index_set(fid, mc_list); + if (err) + goto err_fid_flood_index_set; + + return 0; + +err_fid_flood_index_set: + mlxsw_sp_nve_mc_list_ip_del(mlxsw_sp, mc_list, proto, addr); +err_add_ip: + mlxsw_sp_nve_mc_list_put(mlxsw_sp, mc_list); + return err; +} + +void mlxsw_sp_nve_flood_ip_del(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fid *fid, + enum mlxsw_sp_l3proto proto, + union mlxsw_sp_l3addr *addr) +{ + struct mlxsw_sp_nve_mc_list_key key = { 0 }; + struct mlxsw_sp_nve_mc_list *mc_list; + + key.fid_index = mlxsw_sp_fid_index(fid); + mc_list = mlxsw_sp_nve_mc_list_find(mlxsw_sp, &key); + if (WARN_ON(!mc_list)) + return; + + mlxsw_sp_nve_fid_flood_index_clear(fid, mc_list); + mlxsw_sp_nve_mc_list_ip_del(mlxsw_sp, mc_list, proto, addr); + mlxsw_sp_nve_mc_list_put(mlxsw_sp, mc_list); +} + +static void +mlxsw_sp_nve_mc_record_delete(struct mlxsw_sp_nve_mc_record *mc_record) +{ + struct mlxsw_sp_nve *nve = mc_record->mlxsw_sp->nve; + unsigned int num_max_entries; + int i; + + num_max_entries = nve->num_max_mc_entries[mc_record->proto]; + for (i = 0; i < num_max_entries; i++) { + struct mlxsw_sp_nve_mc_entry *mc_entry = &mc_record->entries[i]; + + if (!mc_entry->valid) + continue; + mlxsw_sp_nve_mc_record_entry_del(mc_record, mc_entry); + } + + WARN_ON(mc_record->num_entries); + mlxsw_sp_nve_mc_record_put(mc_record); +} + +static void mlxsw_sp_nve_flood_ip_flush(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fid *fid) +{ + struct mlxsw_sp_nve_mc_record *mc_record, *tmp; + struct mlxsw_sp_nve_mc_list_key key = { 0 }; + struct mlxsw_sp_nve_mc_list *mc_list; + + if (!mlxsw_sp_fid_nve_flood_index_is_set(fid)) + return; + + mlxsw_sp_fid_nve_flood_index_clear(fid); + + key.fid_index = mlxsw_sp_fid_index(fid); + mc_list = mlxsw_sp_nve_mc_list_find(mlxsw_sp, &key); + if (WARN_ON(!mc_list)) + return; + + list_for_each_entry_safe(mc_record, tmp, &mc_list->records_list, list) + mlxsw_sp_nve_mc_record_delete(mc_record); + + WARN_ON(!list_empty(&mc_list->records_list)); + mlxsw_sp_nve_mc_list_put(mlxsw_sp, mc_list); +} + +u32 mlxsw_sp_nve_decap_tunnel_index_get(const struct mlxsw_sp *mlxsw_sp) +{ + WARN_ON(mlxsw_sp->nve->num_nve_tunnels == 0); + + return mlxsw_sp->nve->tunnel_index; +} + +bool mlxsw_sp_nve_ipv4_route_is_decap(const struct mlxsw_sp *mlxsw_sp, + u32 tb_id, __be32 addr) +{ + struct mlxsw_sp_nve *nve = mlxsw_sp->nve; + struct mlxsw_sp_nve_config *config = &nve->config; + + if (nve->num_nve_tunnels && + config->ul_proto == MLXSW_SP_L3_PROTO_IPV4 && + config->ul_sip.addr4 == addr && config->ul_tb_id == tb_id) + return true; + + return false; +} + +static int mlxsw_sp_nve_tunnel_init(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_nve_config *config) +{ + struct mlxsw_sp_nve *nve = mlxsw_sp->nve; + const struct mlxsw_sp_nve_ops *ops; + int err; + + if (nve->num_nve_tunnels++ != 0) + return 0; + + err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ, 1, + &nve->tunnel_index); + if (err) + goto err_kvdl_alloc; + + ops = nve->nve_ops_arr[config->type]; + err = ops->init(nve, config); + if (err) + goto err_ops_init; + + return 0; + +err_ops_init: + mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ, 1, + nve->tunnel_index); +err_kvdl_alloc: + nve->num_nve_tunnels--; + return err; +} + +static void mlxsw_sp_nve_tunnel_fini(struct mlxsw_sp *mlxsw_sp) +{ + struct mlxsw_sp_nve *nve = mlxsw_sp->nve; + const struct mlxsw_sp_nve_ops *ops; + + ops = nve->nve_ops_arr[nve->config.type]; + + if (mlxsw_sp->nve->num_nve_tunnels == 1) { + ops->fini(nve); + mlxsw_sp_kvdl_free(mlxsw_sp, MLXSW_SP_KVDL_ENTRY_TYPE_ADJ, 1, + nve->tunnel_index); + } + nve->num_nve_tunnels--; +} + +static void mlxsw_sp_nve_fdb_flush_by_fid(struct mlxsw_sp *mlxsw_sp, + u16 fid_index) +{ + char sfdf_pl[MLXSW_REG_SFDF_LEN]; + + mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_NVE_AND_FID); + mlxsw_reg_sfdf_fid_set(sfdf_pl, fid_index); + mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); +} + +int mlxsw_sp_nve_fid_enable(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *fid, + struct mlxsw_sp_nve_params *params, + struct netlink_ext_ack *extack) +{ + struct mlxsw_sp_nve *nve = mlxsw_sp->nve; + const struct mlxsw_sp_nve_ops *ops; + struct mlxsw_sp_nve_config config; + int err; + + ops = nve->nve_ops_arr[params->type]; + + if (!ops->can_offload(nve, params->dev, extack)) + return -EOPNOTSUPP; + + memset(&config, 0, sizeof(config)); + ops->nve_config(nve, params->dev, &config); + if (nve->num_nve_tunnels && + memcmp(&config, &nve->config, sizeof(config))) { + NL_SET_ERR_MSG_MOD(extack, "Conflicting NVE tunnels configuration"); + return -EOPNOTSUPP; + } + + err = mlxsw_sp_nve_tunnel_init(mlxsw_sp, &config); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Failed to initialize NVE tunnel"); + return err; + } + + err = mlxsw_sp_fid_vni_set(fid, params->vni); + if (err) { + NL_SET_ERR_MSG_MOD(extack, "Failed to set VNI on FID"); + goto err_fid_vni_set; + } + + nve->config = config; + + return 0; + +err_fid_vni_set: + mlxsw_sp_nve_tunnel_fini(mlxsw_sp); + return err; +} + +void mlxsw_sp_nve_fid_disable(struct mlxsw_sp *mlxsw_sp, + struct mlxsw_sp_fid *fid) +{ + u16 fid_index = mlxsw_sp_fid_index(fid); + + mlxsw_sp_nve_flood_ip_flush(mlxsw_sp, fid); + mlxsw_sp_nve_fdb_flush_by_fid(mlxsw_sp, fid_index); + mlxsw_sp_fid_vni_clear(fid); + mlxsw_sp_nve_tunnel_fini(mlxsw_sp); +} + +int mlxsw_sp_port_nve_init(struct mlxsw_sp_port *mlxsw_sp_port) +{ + struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; + char tnqdr_pl[MLXSW_REG_TNQDR_LEN]; + + mlxsw_reg_tnqdr_pack(tnqdr_pl, mlxsw_sp_port->local_port); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tnqdr), tnqdr_pl); +} + +void mlxsw_sp_port_nve_fini(struct mlxsw_sp_port *mlxsw_sp_port) +{ +} + +static int mlxsw_sp_nve_qos_init(struct mlxsw_sp *mlxsw_sp) +{ + char tnqcr_pl[MLXSW_REG_TNQCR_LEN]; + + mlxsw_reg_tnqcr_pack(tnqcr_pl); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tnqcr), tnqcr_pl); +} + +static int mlxsw_sp_nve_ecn_encap_init(struct mlxsw_sp *mlxsw_sp) +{ + int i; + + /* Iterate over inner ECN values */ + for (i = INET_ECN_NOT_ECT; i <= INET_ECN_CE; i++) { + u8 outer_ecn = INET_ECN_encapsulate(0, i); + char tneem_pl[MLXSW_REG_TNEEM_LEN]; + int err; + + mlxsw_reg_tneem_pack(tneem_pl, i, outer_ecn); + err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tneem), + tneem_pl); + if (err) + return err; + } + + return 0; +} + +static int __mlxsw_sp_nve_ecn_decap_init(struct mlxsw_sp *mlxsw_sp, + u8 inner_ecn, u8 outer_ecn) +{ + char tndem_pl[MLXSW_REG_TNDEM_LEN]; + bool trap_en, set_ce = false; + u8 new_inner_ecn; + + trap_en = !!__INET_ECN_decapsulate(outer_ecn, inner_ecn, &set_ce); + new_inner_ecn = set_ce ? INET_ECN_CE : inner_ecn; + + mlxsw_reg_tndem_pack(tndem_pl, outer_ecn, inner_ecn, new_inner_ecn, + trap_en, trap_en ? MLXSW_TRAP_ID_DECAP_ECN0 : 0); + return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(tndem), tndem_pl); +} + +static int mlxsw_sp_nve_ecn_decap_init(struct mlxsw_sp *mlxsw_sp) +{ + int i; + + /* Iterate over inner ECN values */ + for (i = INET_ECN_NOT_ECT; i <= INET_ECN_CE; i++) { + int j; + + /* Iterate over outer ECN values */ + for (j = INET_ECN_NOT_ECT; j <= INET_ECN_CE; j++) { + int err; + + err = __mlxsw_sp_nve_ecn_decap_init(mlxsw_sp, i, j); + if (err) + return err; + } + } + + return 0; +} + +static int mlxsw_sp_nve_ecn_init(struct mlxsw_sp *mlxsw_sp) +{ + int err; + + err = mlxsw_sp_nve_ecn_encap_init(mlxsw_sp); + if (err) + return err; + + return mlxsw_sp_nve_ecn_decap_init(mlxsw_sp); +} + +static int mlxsw_sp_nve_resources_query(struct mlxsw_sp *mlxsw_sp) +{ + unsigned int max; + + if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_NVE_MC_ENTRIES_IPV4) || + !MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_NVE_MC_ENTRIES_IPV6)) + return -EIO; + max = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_NVE_MC_ENTRIES_IPV4); + mlxsw_sp->nve->num_max_mc_entries[MLXSW_SP_L3_PROTO_IPV4] = max; + max = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_NVE_MC_ENTRIES_IPV6); + mlxsw_sp->nve->num_max_mc_entries[MLXSW_SP_L3_PROTO_IPV6] = max; + + return 0; +} + +int mlxsw_sp_nve_init(struct mlxsw_sp *mlxsw_sp) +{ + struct mlxsw_sp_nve *nve; + int err; + + nve = kzalloc(sizeof(*mlxsw_sp->nve), GFP_KERNEL); + if (!nve) + return -ENOMEM; + mlxsw_sp->nve = nve; + nve->mlxsw_sp = mlxsw_sp; + nve->nve_ops_arr = mlxsw_sp->nve_ops_arr; + + err = rhashtable_init(&nve->mc_list_ht, + &mlxsw_sp_nve_mc_list_ht_params); + if (err) + goto err_rhashtable_init; + + err = mlxsw_sp_nve_qos_init(mlxsw_sp); + if (err) + goto err_nve_qos_init; + + err = mlxsw_sp_nve_ecn_init(mlxsw_sp); + if (err) + goto err_nve_ecn_init; + + err = mlxsw_sp_nve_resources_query(mlxsw_sp); + if (err) + goto err_nve_resources_query; + + return 0; + +err_nve_resources_query: +err_nve_ecn_init: +err_nve_qos_init: + rhashtable_destroy(&nve->mc_list_ht); +err_rhashtable_init: + mlxsw_sp->nve = NULL; + kfree(nve); + return err; +} + +void mlxsw_sp_nve_fini(struct mlxsw_sp *mlxsw_sp) +{ + WARN_ON(mlxsw_sp->nve->num_nve_tunnels); + rhashtable_destroy(&mlxsw_sp->nve->mc_list_ht); + mlxsw_sp->nve = NULL; + kfree(mlxsw_sp->nve); +} diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.h new file mode 100644 index 0000000000000000000000000000000000000000..4cc3297e13d6d52da281cf60eb6cc3c6d13e24ac --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve.h @@ -0,0 +1,49 @@ +/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */ +/* Copyright (c) 2018 Mellanox Technologies. All rights reserved */ + +#ifndef _MLXSW_SPECTRUM_NVE_H +#define _MLXSW_SPECTRUM_NVE_H + +#include +#include + +#include "spectrum.h" + +struct mlxsw_sp_nve_config { + enum mlxsw_sp_nve_type type; + u8 ttl; + u8 learning_en:1; + __be16 udp_dport; + __be32 flowlabel; + u32 ul_tb_id; + enum mlxsw_sp_l3proto ul_proto; + union mlxsw_sp_l3addr ul_sip; +}; + +struct mlxsw_sp_nve { + struct mlxsw_sp_nve_config config; + struct rhashtable mc_list_ht; + struct mlxsw_sp *mlxsw_sp; + const struct mlxsw_sp_nve_ops **nve_ops_arr; + unsigned int num_nve_tunnels; /* Protected by RTNL */ + unsigned int num_max_mc_entries[MLXSW_SP_L3_PROTO_MAX]; + u32 tunnel_index; +}; + +struct mlxsw_sp_nve_ops { + enum mlxsw_sp_nve_type type; + bool (*can_offload)(const struct mlxsw_sp_nve *nve, + const struct net_device *dev, + struct netlink_ext_ack *extack); + void (*nve_config)(const struct mlxsw_sp_nve *nve, + const struct net_device *dev, + struct mlxsw_sp_nve_config *config); + int (*init)(struct mlxsw_sp_nve *nve, + const struct mlxsw_sp_nve_config *config); + void (*fini)(struct mlxsw_sp_nve *nve); +}; + +extern const struct mlxsw_sp_nve_ops mlxsw_sp1_nve_vxlan_ops; +extern const struct mlxsw_sp_nve_ops mlxsw_sp2_nve_vxlan_ops; + +#endif diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve_vxlan.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve_vxlan.c new file mode 100644 index 0000000000000000000000000000000000000000..4abc4d8a1e685bede63404547c6f69519bdf537c --- /dev/null +++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_nve_vxlan.c @@ -0,0 +1,63 @@ +// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 +/* Copyright (c) 2018 Mellanox Technologies. All rights reserved */ + +#include +#include + +#include "spectrum_nve.h" + +static bool mlxsw_sp1_nve_vxlan_can_offload(const struct mlxsw_sp_nve *nve, + const struct net_device *dev, + struct netlink_ext_ack *extack) +{ + return false; +} + +static void mlxsw_sp_nve_vxlan_config(const struct mlxsw_sp_nve *nve, + const struct net_device *dev, + struct mlxsw_sp_nve_config *config) +{ +} + +static int mlxsw_sp1_nve_vxlan_init(struct mlxsw_sp_nve *nve, + const struct mlxsw_sp_nve_config *config) +{ + return -EOPNOTSUPP; +} + +static void mlxsw_sp1_nve_vxlan_fini(struct mlxsw_sp_nve *nve) +{ +} + +const struct mlxsw_sp_nve_ops mlxsw_sp1_nve_vxlan_ops = { + .type = MLXSW_SP_NVE_TYPE_VXLAN, + .can_offload = mlxsw_sp1_nve_vxlan_can_offload, + .nve_config = mlxsw_sp_nve_vxlan_config, + .init = mlxsw_sp1_nve_vxlan_init, + .fini = mlxsw_sp1_nve_vxlan_fini, +}; + +static bool mlxsw_sp2_nve_vxlan_can_offload(const struct mlxsw_sp_nve *nve, + const struct net_device *dev, + struct netlink_ext_ack *extack) +{ + return false; +} + +static int mlxsw_sp2_nve_vxlan_init(struct mlxsw_sp_nve *nve, + const struct mlxsw_sp_nve_config *config) +{ + return -EOPNOTSUPP; +} + +static void mlxsw_sp2_nve_vxlan_fini(struct mlxsw_sp_nve *nve) +{ +} + +const struct mlxsw_sp_nve_ops mlxsw_sp2_nve_vxlan_ops = { + .type = MLXSW_SP_NVE_TYPE_VXLAN, + .can_offload = mlxsw_sp2_nve_vxlan_can_offload, + .nve_config = mlxsw_sp_nve_vxlan_config, + .init = mlxsw_sp2_nve_vxlan_init, + .fini = mlxsw_sp2_nve_vxlan_fini, +};