/* * drivers/net/ethernet/mellanox/mlxsw/spectrum.c * Copyright (c) 2015-2017 Mellanox Technologies. All rights reserved. * Copyright (c) 2015-2017 Jiri Pirko * Copyright (c) 2015 Ido Schimmel * Copyright (c) 2015 Elad Raz * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. Neither the names of the copyright holders nor the names of its * contributors may be used to endorse or promote products derived from * this software without specific prior written permission. * * Alternatively, this software may be distributed under the terms of the * GNU General Public License ("GPL") version 2 as published by the Free * Software Foundation. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "spectrum.h" #include "pci.h" #include "core.h" #include "reg.h" #include "port.h" #include "trap.h" #include "txheader.h" #include "spectrum_cnt.h" #include "spectrum_dpipe.h" static const char mlxsw_sp_driver_name[] = "mlxsw_spectrum"; static const char mlxsw_sp_driver_version[] = "1.0"; /* tx_hdr_version * Tx header version. * Must be set to 1. */ MLXSW_ITEM32(tx, hdr, version, 0x00, 28, 4); /* tx_hdr_ctl * Packet control type. * 0 - Ethernet control (e.g. EMADs, LACP) * 1 - Ethernet data */ MLXSW_ITEM32(tx, hdr, ctl, 0x00, 26, 2); /* tx_hdr_proto * Packet protocol type. Must be set to 1 (Ethernet). */ MLXSW_ITEM32(tx, hdr, proto, 0x00, 21, 3); /* tx_hdr_rx_is_router * Packet is sent from the router. Valid for data packets only. */ MLXSW_ITEM32(tx, hdr, rx_is_router, 0x00, 19, 1); /* tx_hdr_fid_valid * Indicates if the 'fid' field is valid and should be used for * forwarding lookup. Valid for data packets only. */ MLXSW_ITEM32(tx, hdr, fid_valid, 0x00, 16, 1); /* tx_hdr_swid * Switch partition ID. Must be set to 0. */ MLXSW_ITEM32(tx, hdr, swid, 0x00, 12, 3); /* tx_hdr_control_tclass * Indicates if the packet should use the control TClass and not one * of the data TClasses. */ MLXSW_ITEM32(tx, hdr, control_tclass, 0x00, 6, 1); /* tx_hdr_etclass * Egress TClass to be used on the egress device on the egress port. */ MLXSW_ITEM32(tx, hdr, etclass, 0x00, 0, 4); /* tx_hdr_port_mid * Destination local port for unicast packets. * Destination multicast ID for multicast packets. * * Control packets are directed to a specific egress port, while data * packets are transmitted through the CPU port (0) into the switch partition, * where forwarding rules are applied. */ MLXSW_ITEM32(tx, hdr, port_mid, 0x04, 16, 16); /* tx_hdr_fid * Forwarding ID used for L2 forwarding lookup. Valid only if 'fid_valid' is * set, otherwise calculated based on the packet's VID using VID to FID mapping. * Valid for data packets only. */ MLXSW_ITEM32(tx, hdr, fid, 0x08, 0, 16); /* tx_hdr_type * 0 - Data packets * 6 - Control packets */ MLXSW_ITEM32(tx, hdr, type, 0x0C, 0, 4); int mlxsw_sp_flow_counter_get(struct mlxsw_sp *mlxsw_sp, unsigned int counter_index, u64 *packets, u64 *bytes) { char mgpc_pl[MLXSW_REG_MGPC_LEN]; int err; mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_NOP, MLXSW_REG_MGPC_COUNTER_SET_TYPE_PACKETS_BYTES); err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl); if (err) return err; *packets = mlxsw_reg_mgpc_packet_counter_get(mgpc_pl); *bytes = mlxsw_reg_mgpc_byte_counter_get(mgpc_pl); return 0; } static int mlxsw_sp_flow_counter_clear(struct mlxsw_sp *mlxsw_sp, unsigned int counter_index) { char mgpc_pl[MLXSW_REG_MGPC_LEN]; mlxsw_reg_mgpc_pack(mgpc_pl, counter_index, MLXSW_REG_MGPC_OPCODE_CLEAR, MLXSW_REG_MGPC_COUNTER_SET_TYPE_PACKETS_BYTES); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mgpc), mgpc_pl); } int mlxsw_sp_flow_counter_alloc(struct mlxsw_sp *mlxsw_sp, unsigned int *p_counter_index) { int err; err = mlxsw_sp_counter_alloc(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW, p_counter_index); if (err) return err; err = mlxsw_sp_flow_counter_clear(mlxsw_sp, *p_counter_index); if (err) goto err_counter_clear; return 0; err_counter_clear: mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW, *p_counter_index); return err; } void mlxsw_sp_flow_counter_free(struct mlxsw_sp *mlxsw_sp, unsigned int counter_index) { mlxsw_sp_counter_free(mlxsw_sp, MLXSW_SP_COUNTER_SUB_POOL_FLOW, counter_index); } static void mlxsw_sp_txhdr_construct(struct sk_buff *skb, const struct mlxsw_tx_info *tx_info) { char *txhdr = skb_push(skb, MLXSW_TXHDR_LEN); memset(txhdr, 0, MLXSW_TXHDR_LEN); mlxsw_tx_hdr_version_set(txhdr, MLXSW_TXHDR_VERSION_1); mlxsw_tx_hdr_ctl_set(txhdr, MLXSW_TXHDR_ETH_CTL); mlxsw_tx_hdr_proto_set(txhdr, MLXSW_TXHDR_PROTO_ETH); mlxsw_tx_hdr_swid_set(txhdr, 0); mlxsw_tx_hdr_control_tclass_set(txhdr, 1); mlxsw_tx_hdr_port_mid_set(txhdr, tx_info->local_port); mlxsw_tx_hdr_type_set(txhdr, MLXSW_TXHDR_TYPE_CONTROL); } static int mlxsw_sp_base_mac_get(struct mlxsw_sp *mlxsw_sp) { char spad_pl[MLXSW_REG_SPAD_LEN] = {0}; int err; err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(spad), spad_pl); if (err) return err; mlxsw_reg_spad_base_mac_memcpy_from(spad_pl, mlxsw_sp->base_mac); return 0; } static int mlxsw_sp_span_init(struct mlxsw_sp *mlxsw_sp) { int i; if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_SPAN)) return -EIO; mlxsw_sp->span.entries_count = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_SPAN); mlxsw_sp->span.entries = kcalloc(mlxsw_sp->span.entries_count, sizeof(struct mlxsw_sp_span_entry), GFP_KERNEL); if (!mlxsw_sp->span.entries) return -ENOMEM; for (i = 0; i < mlxsw_sp->span.entries_count; i++) INIT_LIST_HEAD(&mlxsw_sp->span.entries[i].bound_ports_list); return 0; } static void mlxsw_sp_span_fini(struct mlxsw_sp *mlxsw_sp) { int i; for (i = 0; i < mlxsw_sp->span.entries_count; i++) { struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i]; WARN_ON_ONCE(!list_empty(&curr->bound_ports_list)); } kfree(mlxsw_sp->span.entries); } static struct mlxsw_sp_span_entry * mlxsw_sp_span_entry_create(struct mlxsw_sp_port *port) { struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp; struct mlxsw_sp_span_entry *span_entry; char mpat_pl[MLXSW_REG_MPAT_LEN]; u8 local_port = port->local_port; int index; int i; int err; /* find a free entry to use */ index = -1; for (i = 0; i < mlxsw_sp->span.entries_count; i++) { if (!mlxsw_sp->span.entries[i].used) { index = i; span_entry = &mlxsw_sp->span.entries[i]; break; } } if (index < 0) return NULL; /* create a new port analayzer entry for local_port */ mlxsw_reg_mpat_pack(mpat_pl, index, local_port, true); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpat), mpat_pl); if (err) return NULL; span_entry->used = true; span_entry->id = index; span_entry->ref_count = 1; span_entry->local_port = local_port; return span_entry; } static void mlxsw_sp_span_entry_destroy(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_span_entry *span_entry) { u8 local_port = span_entry->local_port; char mpat_pl[MLXSW_REG_MPAT_LEN]; int pa_id = span_entry->id; mlxsw_reg_mpat_pack(mpat_pl, pa_id, local_port, false); mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpat), mpat_pl); span_entry->used = false; } static struct mlxsw_sp_span_entry * mlxsw_sp_span_entry_find(struct mlxsw_sp_port *port) { struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp; int i; for (i = 0; i < mlxsw_sp->span.entries_count; i++) { struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i]; if (curr->used && curr->local_port == port->local_port) return curr; } return NULL; } static struct mlxsw_sp_span_entry *mlxsw_sp_span_entry_get(struct mlxsw_sp_port *port) { struct mlxsw_sp_span_entry *span_entry; span_entry = mlxsw_sp_span_entry_find(port); if (span_entry) { /* Already exists, just take a reference */ span_entry->ref_count++; return span_entry; } return mlxsw_sp_span_entry_create(port); } static int mlxsw_sp_span_entry_put(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_span_entry *span_entry) { WARN_ON(!span_entry->ref_count); if (--span_entry->ref_count == 0) mlxsw_sp_span_entry_destroy(mlxsw_sp, span_entry); return 0; } static bool mlxsw_sp_span_is_egress_mirror(struct mlxsw_sp_port *port) { struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp; struct mlxsw_sp_span_inspected_port *p; int i; for (i = 0; i < mlxsw_sp->span.entries_count; i++) { struct mlxsw_sp_span_entry *curr = &mlxsw_sp->span.entries[i]; list_for_each_entry(p, &curr->bound_ports_list, list) if (p->local_port == port->local_port && p->type == MLXSW_SP_SPAN_EGRESS) return true; } return false; } static int mlxsw_sp_span_mtu_to_buffsize(const struct mlxsw_sp *mlxsw_sp, int mtu) { return mlxsw_sp_bytes_cells(mlxsw_sp, mtu * 5 / 2) + 1; } static int mlxsw_sp_span_port_mtu_update(struct mlxsw_sp_port *port, u16 mtu) { struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp; char sbib_pl[MLXSW_REG_SBIB_LEN]; int err; /* If port is egress mirrored, the shared buffer size should be * updated according to the mtu value */ if (mlxsw_sp_span_is_egress_mirror(port)) { u32 buffsize = mlxsw_sp_span_mtu_to_buffsize(mlxsw_sp, mtu); mlxsw_reg_sbib_pack(sbib_pl, port->local_port, buffsize); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl); if (err) { netdev_err(port->dev, "Could not update shared buffer for mirroring\n"); return err; } } return 0; } static struct mlxsw_sp_span_inspected_port * mlxsw_sp_span_entry_bound_port_find(struct mlxsw_sp_port *port, struct mlxsw_sp_span_entry *span_entry) { struct mlxsw_sp_span_inspected_port *p; list_for_each_entry(p, &span_entry->bound_ports_list, list) if (port->local_port == p->local_port) return p; return NULL; } static int mlxsw_sp_span_inspected_port_bind(struct mlxsw_sp_port *port, struct mlxsw_sp_span_entry *span_entry, enum mlxsw_sp_span_type type) { struct mlxsw_sp_span_inspected_port *inspected_port; struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp; char mpar_pl[MLXSW_REG_MPAR_LEN]; char sbib_pl[MLXSW_REG_SBIB_LEN]; int pa_id = span_entry->id; int err; /* if it is an egress SPAN, bind a shared buffer to it */ if (type == MLXSW_SP_SPAN_EGRESS) { u32 buffsize = mlxsw_sp_span_mtu_to_buffsize(mlxsw_sp, port->dev->mtu); mlxsw_reg_sbib_pack(sbib_pl, port->local_port, buffsize); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl); if (err) { netdev_err(port->dev, "Could not create shared buffer for mirroring\n"); return err; } } /* bind the port to the SPAN entry */ mlxsw_reg_mpar_pack(mpar_pl, port->local_port, (enum mlxsw_reg_mpar_i_e) type, true, pa_id); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpar), mpar_pl); if (err) goto err_mpar_reg_write; inspected_port = kzalloc(sizeof(*inspected_port), GFP_KERNEL); if (!inspected_port) { err = -ENOMEM; goto err_inspected_port_alloc; } inspected_port->local_port = port->local_port; inspected_port->type = type; list_add_tail(&inspected_port->list, &span_entry->bound_ports_list); return 0; err_mpar_reg_write: err_inspected_port_alloc: if (type == MLXSW_SP_SPAN_EGRESS) { mlxsw_reg_sbib_pack(sbib_pl, port->local_port, 0); mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl); } return err; } static void mlxsw_sp_span_inspected_port_unbind(struct mlxsw_sp_port *port, struct mlxsw_sp_span_entry *span_entry, enum mlxsw_sp_span_type type) { struct mlxsw_sp_span_inspected_port *inspected_port; struct mlxsw_sp *mlxsw_sp = port->mlxsw_sp; char mpar_pl[MLXSW_REG_MPAR_LEN]; char sbib_pl[MLXSW_REG_SBIB_LEN]; int pa_id = span_entry->id; inspected_port = mlxsw_sp_span_entry_bound_port_find(port, span_entry); if (!inspected_port) return; /* remove the inspected port */ mlxsw_reg_mpar_pack(mpar_pl, port->local_port, (enum mlxsw_reg_mpar_i_e) type, false, pa_id); mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpar), mpar_pl); /* remove the SBIB buffer if it was egress SPAN */ if (type == MLXSW_SP_SPAN_EGRESS) { mlxsw_reg_sbib_pack(sbib_pl, port->local_port, 0); mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sbib), sbib_pl); } mlxsw_sp_span_entry_put(mlxsw_sp, span_entry); list_del(&inspected_port->list); kfree(inspected_port); } static int mlxsw_sp_span_mirror_add(struct mlxsw_sp_port *from, struct mlxsw_sp_port *to, enum mlxsw_sp_span_type type) { struct mlxsw_sp *mlxsw_sp = from->mlxsw_sp; struct mlxsw_sp_span_entry *span_entry; int err; span_entry = mlxsw_sp_span_entry_get(to); if (!span_entry) return -ENOENT; netdev_dbg(from->dev, "Adding inspected port to SPAN entry %d\n", span_entry->id); err = mlxsw_sp_span_inspected_port_bind(from, span_entry, type); if (err) goto err_port_bind; return 0; err_port_bind: mlxsw_sp_span_entry_put(mlxsw_sp, span_entry); return err; } static void mlxsw_sp_span_mirror_remove(struct mlxsw_sp_port *from, struct mlxsw_sp_port *to, enum mlxsw_sp_span_type type) { struct mlxsw_sp_span_entry *span_entry; span_entry = mlxsw_sp_span_entry_find(to); if (!span_entry) { netdev_err(from->dev, "no span entry found\n"); return; } netdev_dbg(from->dev, "removing inspected port from SPAN entry %d\n", span_entry->id); mlxsw_sp_span_inspected_port_unbind(from, span_entry, type); } static int mlxsw_sp_port_sample_set(struct mlxsw_sp_port *mlxsw_sp_port, bool enable, u32 rate) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char mpsc_pl[MLXSW_REG_MPSC_LEN]; mlxsw_reg_mpsc_pack(mpsc_pl, mlxsw_sp_port->local_port, enable, rate); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mpsc), mpsc_pl); } static int mlxsw_sp_port_admin_status_set(struct mlxsw_sp_port *mlxsw_sp_port, bool is_up) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char paos_pl[MLXSW_REG_PAOS_LEN]; mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port, is_up ? MLXSW_PORT_ADMIN_STATUS_UP : MLXSW_PORT_ADMIN_STATUS_DOWN); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(paos), paos_pl); } static int mlxsw_sp_port_dev_addr_set(struct mlxsw_sp_port *mlxsw_sp_port, unsigned char *addr) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char ppad_pl[MLXSW_REG_PPAD_LEN]; mlxsw_reg_ppad_pack(ppad_pl, true, mlxsw_sp_port->local_port); mlxsw_reg_ppad_mac_memcpy_to(ppad_pl, addr); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppad), ppad_pl); } static int mlxsw_sp_port_dev_addr_init(struct mlxsw_sp_port *mlxsw_sp_port) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; unsigned char *addr = mlxsw_sp_port->dev->dev_addr; ether_addr_copy(addr, mlxsw_sp->base_mac); addr[ETH_ALEN - 1] += mlxsw_sp_port->local_port; return mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr); } static int mlxsw_sp_port_mtu_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 mtu) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char pmtu_pl[MLXSW_REG_PMTU_LEN]; int max_mtu; int err; mtu += MLXSW_TXHDR_LEN + ETH_HLEN; mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, 0); err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl); if (err) return err; max_mtu = mlxsw_reg_pmtu_max_mtu_get(pmtu_pl); if (mtu > max_mtu) return -EINVAL; mlxsw_reg_pmtu_pack(pmtu_pl, mlxsw_sp_port->local_port, mtu); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmtu), pmtu_pl); } static int __mlxsw_sp_port_swid_set(struct mlxsw_sp *mlxsw_sp, u8 local_port, u8 swid) { char pspa_pl[MLXSW_REG_PSPA_LEN]; mlxsw_reg_pspa_pack(pspa_pl, swid, local_port); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pspa), pspa_pl); } static int mlxsw_sp_port_swid_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 swid) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; return __mlxsw_sp_port_swid_set(mlxsw_sp, mlxsw_sp_port->local_port, swid); } static int mlxsw_sp_port_vp_mode_set(struct mlxsw_sp_port *mlxsw_sp_port, bool enable) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char svpe_pl[MLXSW_REG_SVPE_LEN]; mlxsw_reg_svpe_pack(svpe_pl, mlxsw_sp_port->local_port, enable); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svpe), svpe_pl); } int mlxsw_sp_port_vid_to_fid_set(struct mlxsw_sp_port *mlxsw_sp_port, enum mlxsw_reg_svfa_mt mt, bool valid, u16 fid, u16 vid) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char svfa_pl[MLXSW_REG_SVFA_LEN]; mlxsw_reg_svfa_pack(svfa_pl, mlxsw_sp_port->local_port, mt, valid, fid, vid); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(svfa), svfa_pl); } int __mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin, u16 vid_end, bool learn_enable) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char *spvmlr_pl; int err; spvmlr_pl = kmalloc(MLXSW_REG_SPVMLR_LEN, GFP_KERNEL); if (!spvmlr_pl) return -ENOMEM; mlxsw_reg_spvmlr_pack(spvmlr_pl, mlxsw_sp_port->local_port, vid_begin, vid_end, learn_enable); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl); kfree(spvmlr_pl); return err; } static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid, bool learn_enable) { return __mlxsw_sp_port_vid_learning_set(mlxsw_sp_port, vid, vid, learn_enable); } static int mlxsw_sp_port_system_port_mapping_set(struct mlxsw_sp_port *mlxsw_sp_port) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char sspr_pl[MLXSW_REG_SSPR_LEN]; mlxsw_reg_sspr_pack(sspr_pl, mlxsw_sp_port->local_port); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sspr), sspr_pl); } static int mlxsw_sp_port_module_info_get(struct mlxsw_sp *mlxsw_sp, u8 local_port, u8 *p_module, u8 *p_width, u8 *p_lane) { char pmlp_pl[MLXSW_REG_PMLP_LEN]; int err; mlxsw_reg_pmlp_pack(pmlp_pl, local_port); err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl); if (err) return err; *p_module = mlxsw_reg_pmlp_module_get(pmlp_pl, 0); *p_width = mlxsw_reg_pmlp_width_get(pmlp_pl); *p_lane = mlxsw_reg_pmlp_tx_lane_get(pmlp_pl, 0); return 0; } static int mlxsw_sp_port_module_map(struct mlxsw_sp *mlxsw_sp, u8 local_port, u8 module, u8 width, u8 lane) { char pmlp_pl[MLXSW_REG_PMLP_LEN]; int i; mlxsw_reg_pmlp_pack(pmlp_pl, local_port); mlxsw_reg_pmlp_width_set(pmlp_pl, width); for (i = 0; i < width; i++) { mlxsw_reg_pmlp_module_set(pmlp_pl, i, module); mlxsw_reg_pmlp_tx_lane_set(pmlp_pl, i, lane + i); /* Rx & Tx */ } return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl); } static int mlxsw_sp_port_module_unmap(struct mlxsw_sp *mlxsw_sp, u8 local_port) { char pmlp_pl[MLXSW_REG_PMLP_LEN]; mlxsw_reg_pmlp_pack(pmlp_pl, local_port); mlxsw_reg_pmlp_width_set(pmlp_pl, 0); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pmlp), pmlp_pl); } static int mlxsw_sp_port_open(struct net_device *dev) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); int err; err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true); if (err) return err; netif_start_queue(dev); return 0; } static int mlxsw_sp_port_stop(struct net_device *dev) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); netif_stop_queue(dev); return mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); } static netdev_tx_t mlxsw_sp_port_xmit(struct sk_buff *skb, struct net_device *dev) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct mlxsw_sp_port_pcpu_stats *pcpu_stats; const struct mlxsw_tx_info tx_info = { .local_port = mlxsw_sp_port->local_port, .is_emad = false, }; u64 len; int err; if (mlxsw_core_skb_transmit_busy(mlxsw_sp->core, &tx_info)) return NETDEV_TX_BUSY; if (unlikely(skb_headroom(skb) < MLXSW_TXHDR_LEN)) { struct sk_buff *skb_orig = skb; skb = skb_realloc_headroom(skb, MLXSW_TXHDR_LEN); if (!skb) { this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); dev_kfree_skb_any(skb_orig); return NETDEV_TX_OK; } dev_consume_skb_any(skb_orig); } if (eth_skb_pad(skb)) { this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); return NETDEV_TX_OK; } mlxsw_sp_txhdr_construct(skb, &tx_info); /* TX header is consumed by HW on the way so we shouldn't count its * bytes as being sent. */ len = skb->len - MLXSW_TXHDR_LEN; /* Due to a race we might fail here because of a full queue. In that * unlikely case we simply drop the packet. */ err = mlxsw_core_skb_transmit(mlxsw_sp->core, skb, &tx_info); if (!err) { pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats); u64_stats_update_begin(&pcpu_stats->syncp); pcpu_stats->tx_packets++; pcpu_stats->tx_bytes += len; u64_stats_update_end(&pcpu_stats->syncp); } else { this_cpu_inc(mlxsw_sp_port->pcpu_stats->tx_dropped); dev_kfree_skb_any(skb); } return NETDEV_TX_OK; } static void mlxsw_sp_set_rx_mode(struct net_device *dev) { } static int mlxsw_sp_port_set_mac_address(struct net_device *dev, void *p) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); struct sockaddr *addr = p; int err; if (!is_valid_ether_addr(addr->sa_data)) return -EADDRNOTAVAIL; err = mlxsw_sp_port_dev_addr_set(mlxsw_sp_port, addr->sa_data); if (err) return err; memcpy(dev->dev_addr, addr->sa_data, dev->addr_len); return 0; } static u16 mlxsw_sp_pg_buf_threshold_get(const struct mlxsw_sp *mlxsw_sp, int mtu) { return 2 * mlxsw_sp_bytes_cells(mlxsw_sp, mtu); } #define MLXSW_SP_CELL_FACTOR 2 /* 2 * cell_size / (IPG + cell_size + 1) */ static u16 mlxsw_sp_pfc_delay_get(const struct mlxsw_sp *mlxsw_sp, int mtu, u16 delay) { delay = mlxsw_sp_bytes_cells(mlxsw_sp, DIV_ROUND_UP(delay, BITS_PER_BYTE)); return MLXSW_SP_CELL_FACTOR * delay + mlxsw_sp_bytes_cells(mlxsw_sp, mtu); } /* Maximum delay buffer needed in case of PAUSE frames, in bytes. * Assumes 100m cable and maximum MTU. */ #define MLXSW_SP_PAUSE_DELAY 58752 static u16 mlxsw_sp_pg_buf_delay_get(const struct mlxsw_sp *mlxsw_sp, int mtu, u16 delay, bool pfc, bool pause) { if (pfc) return mlxsw_sp_pfc_delay_get(mlxsw_sp, mtu, delay); else if (pause) return mlxsw_sp_bytes_cells(mlxsw_sp, MLXSW_SP_PAUSE_DELAY); else return 0; } static void mlxsw_sp_pg_buf_pack(char *pbmc_pl, int index, u16 size, u16 thres, bool lossy) { if (lossy) mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, index, size); else mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl, index, size, thres); } int __mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu, u8 *prio_tc, bool pause_en, struct ieee_pfc *my_pfc) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; u8 pfc_en = !!my_pfc ? my_pfc->pfc_en : 0; u16 delay = !!my_pfc ? my_pfc->delay : 0; char pbmc_pl[MLXSW_REG_PBMC_LEN]; int i, j, err; mlxsw_reg_pbmc_pack(pbmc_pl, mlxsw_sp_port->local_port, 0, 0); err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl); if (err) return err; for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { bool configure = false; bool pfc = false; bool lossy; u16 thres; for (j = 0; j < IEEE_8021QAZ_MAX_TCS; j++) { if (prio_tc[j] == i) { pfc = pfc_en & BIT(j); configure = true; break; } } if (!configure) continue; lossy = !(pfc || pause_en); thres = mlxsw_sp_pg_buf_threshold_get(mlxsw_sp, mtu); delay = mlxsw_sp_pg_buf_delay_get(mlxsw_sp, mtu, delay, pfc, pause_en); mlxsw_sp_pg_buf_pack(pbmc_pl, i, thres + delay, thres, lossy); } return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pbmc), pbmc_pl); } static int mlxsw_sp_port_headroom_set(struct mlxsw_sp_port *mlxsw_sp_port, int mtu, bool pause_en) { u8 def_prio_tc[IEEE_8021QAZ_MAX_TCS] = {0}; bool dcb_en = !!mlxsw_sp_port->dcb.ets; struct ieee_pfc *my_pfc; u8 *prio_tc; prio_tc = dcb_en ? mlxsw_sp_port->dcb.ets->prio_tc : def_prio_tc; my_pfc = dcb_en ? mlxsw_sp_port->dcb.pfc : NULL; return __mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, prio_tc, pause_en, my_pfc); } static int mlxsw_sp_port_change_mtu(struct net_device *dev, int mtu) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); bool pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port); int err; err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, mtu, pause_en); if (err) return err; err = mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, mtu); if (err) goto err_span_port_mtu_update; err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, mtu); if (err) goto err_port_mtu_set; dev->mtu = mtu; return 0; err_port_mtu_set: mlxsw_sp_span_port_mtu_update(mlxsw_sp_port, dev->mtu); err_span_port_mtu_update: mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en); return err; } static int mlxsw_sp_port_get_sw_stats64(const struct net_device *dev, struct rtnl_link_stats64 *stats) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); struct mlxsw_sp_port_pcpu_stats *p; u64 rx_packets, rx_bytes, tx_packets, tx_bytes; u32 tx_dropped = 0; unsigned int start; int i; for_each_possible_cpu(i) { p = per_cpu_ptr(mlxsw_sp_port->pcpu_stats, i); do { start = u64_stats_fetch_begin_irq(&p->syncp); rx_packets = p->rx_packets; rx_bytes = p->rx_bytes; tx_packets = p->tx_packets; tx_bytes = p->tx_bytes; } while (u64_stats_fetch_retry_irq(&p->syncp, start)); stats->rx_packets += rx_packets; stats->rx_bytes += rx_bytes; stats->tx_packets += tx_packets; stats->tx_bytes += tx_bytes; /* tx_dropped is u32, updated without syncp protection. */ tx_dropped += p->tx_dropped; } stats->tx_dropped = tx_dropped; return 0; } static bool mlxsw_sp_port_has_offload_stats(const struct net_device *dev, int attr_id) { switch (attr_id) { case IFLA_OFFLOAD_XSTATS_CPU_HIT: return true; } return false; } static int mlxsw_sp_port_get_offload_stats(int attr_id, const struct net_device *dev, void *sp) { switch (attr_id) { case IFLA_OFFLOAD_XSTATS_CPU_HIT: return mlxsw_sp_port_get_sw_stats64(dev, sp); } return -EINVAL; } static int mlxsw_sp_port_get_stats_raw(struct net_device *dev, int grp, int prio, char *ppcnt_pl) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, grp, prio); return mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl); } static int mlxsw_sp_port_get_hw_stats(struct net_device *dev, struct rtnl_link_stats64 *stats) { char ppcnt_pl[MLXSW_REG_PPCNT_LEN]; int err; err = mlxsw_sp_port_get_stats_raw(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, 0, ppcnt_pl); if (err) goto out; stats->tx_packets = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get(ppcnt_pl); stats->rx_packets = mlxsw_reg_ppcnt_a_frames_received_ok_get(ppcnt_pl); stats->tx_bytes = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get(ppcnt_pl); stats->rx_bytes = mlxsw_reg_ppcnt_a_octets_received_ok_get(ppcnt_pl); stats->multicast = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get(ppcnt_pl); stats->rx_crc_errors = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get(ppcnt_pl); stats->rx_frame_errors = mlxsw_reg_ppcnt_a_alignment_errors_get(ppcnt_pl); stats->rx_length_errors = ( mlxsw_reg_ppcnt_a_in_range_length_errors_get(ppcnt_pl) + mlxsw_reg_ppcnt_a_out_of_range_length_field_get(ppcnt_pl) + mlxsw_reg_ppcnt_a_frame_too_long_errors_get(ppcnt_pl)); stats->rx_errors = (stats->rx_crc_errors + stats->rx_frame_errors + stats->rx_length_errors); out: return err; } static void update_stats_cache(struct work_struct *work) { struct mlxsw_sp_port *mlxsw_sp_port = container_of(work, struct mlxsw_sp_port, hw_stats.update_dw.work); if (!netif_carrier_ok(mlxsw_sp_port->dev)) goto out; mlxsw_sp_port_get_hw_stats(mlxsw_sp_port->dev, mlxsw_sp_port->hw_stats.cache); out: mlxsw_core_schedule_dw(&mlxsw_sp_port->hw_stats.update_dw, MLXSW_HW_STATS_UPDATE_TIME); } /* Return the stats from a cache that is updated periodically, * as this function might get called in an atomic context. */ static void mlxsw_sp_port_get_stats64(struct net_device *dev, struct rtnl_link_stats64 *stats) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); memcpy(stats, mlxsw_sp_port->hw_stats.cache, sizeof(*stats)); } int mlxsw_sp_port_vlan_set(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid_begin, u16 vid_end, bool is_member, bool untagged) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char *spvm_pl; int err; spvm_pl = kmalloc(MLXSW_REG_SPVM_LEN, GFP_KERNEL); if (!spvm_pl) return -ENOMEM; mlxsw_reg_spvm_pack(spvm_pl, mlxsw_sp_port->local_port, vid_begin, vid_end, is_member, untagged); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvm), spvm_pl); kfree(spvm_pl); return err; } static int mlxsw_sp_port_vp_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port) { enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID; u16 vid, last_visited_vid; int err; for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) { err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, true, vid, vid); if (err) { last_visited_vid = vid; goto err_port_vid_to_fid_set; } } err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, true); if (err) { last_visited_vid = VLAN_N_VID; goto err_port_vid_to_fid_set; } return 0; err_port_vid_to_fid_set: for_each_set_bit(vid, mlxsw_sp_port->active_vlans, last_visited_vid) mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, vid, vid); return err; } static int mlxsw_sp_port_vlan_mode_trans(struct mlxsw_sp_port *mlxsw_sp_port) { enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID; u16 vid; int err; err = mlxsw_sp_port_vp_mode_set(mlxsw_sp_port, false); if (err) return err; for_each_set_bit(vid, mlxsw_sp_port->active_vlans, VLAN_N_VID) { err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_port, mt, false, vid, vid); if (err) return err; } return 0; } static struct mlxsw_sp_port * mlxsw_sp_port_vport_create(struct mlxsw_sp_port *mlxsw_sp_port, u16 vid) { struct mlxsw_sp_port *mlxsw_sp_vport; mlxsw_sp_vport = kzalloc(sizeof(*mlxsw_sp_vport), GFP_KERNEL); if (!mlxsw_sp_vport) return NULL; /* dev will be set correctly after the VLAN device is linked * with the real device. In case of bridge SELF invocation, dev * will remain as is. */ mlxsw_sp_vport->dev = mlxsw_sp_port->dev; mlxsw_sp_vport->mlxsw_sp = mlxsw_sp_port->mlxsw_sp; mlxsw_sp_vport->local_port = mlxsw_sp_port->local_port; mlxsw_sp_vport->stp_state = BR_STATE_FORWARDING; mlxsw_sp_vport->lagged = mlxsw_sp_port->lagged; mlxsw_sp_vport->lag_id = mlxsw_sp_port->lag_id; mlxsw_sp_vport->vport.vid = vid; list_add(&mlxsw_sp_vport->vport.list, &mlxsw_sp_port->vports_list); return mlxsw_sp_vport; } static void mlxsw_sp_port_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_vport) { list_del(&mlxsw_sp_vport->vport.list); kfree(mlxsw_sp_vport); } static int mlxsw_sp_port_add_vid(struct net_device *dev, __be16 __always_unused proto, u16 vid) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); struct mlxsw_sp_port *mlxsw_sp_vport; bool untagged = vid == 1; int err; /* VLAN 0 is added to HW filter when device goes up, but it is * reserved in our case, so simply return. */ if (!vid) return 0; if (mlxsw_sp_port_vport_find(mlxsw_sp_port, vid)) return 0; mlxsw_sp_vport = mlxsw_sp_port_vport_create(mlxsw_sp_port, vid); if (!mlxsw_sp_vport) return -ENOMEM; /* When adding the first VLAN interface on a bridged port we need to * transition all the active 802.1Q bridge VLANs to use explicit * {Port, VID} to FID mappings and set the port's mode to Virtual mode. */ if (list_is_singular(&mlxsw_sp_port->vports_list)) { err = mlxsw_sp_port_vp_mode_trans(mlxsw_sp_port); if (err) goto err_port_vp_mode_trans; } err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, untagged); if (err) goto err_port_add_vid; return 0; err_port_add_vid: if (list_is_singular(&mlxsw_sp_port->vports_list)) mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port); err_port_vp_mode_trans: mlxsw_sp_port_vport_destroy(mlxsw_sp_vport); return err; } static int mlxsw_sp_port_kill_vid(struct net_device *dev, __be16 __always_unused proto, u16 vid) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); struct mlxsw_sp_port *mlxsw_sp_vport; struct mlxsw_sp_fid *f; /* VLAN 0 is removed from HW filter when device goes down, but * it is reserved in our case, so simply return. */ if (!vid) return 0; mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); if (WARN_ON(!mlxsw_sp_vport)) return 0; mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false); /* Drop FID reference. If this was the last reference the * resources will be freed. */ f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport); if (f && !WARN_ON(!f->leave)) f->leave(mlxsw_sp_vport); /* When removing the last VLAN interface on a bridged port we need to * transition all active 802.1Q bridge VLANs to use VID to FID * mappings and set port's mode to VLAN mode. */ if (list_is_singular(&mlxsw_sp_port->vports_list)) mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port); mlxsw_sp_port_vport_destroy(mlxsw_sp_vport); return 0; } static int mlxsw_sp_port_get_phys_port_name(struct net_device *dev, char *name, size_t len) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); u8 module = mlxsw_sp_port->mapping.module; u8 width = mlxsw_sp_port->mapping.width; u8 lane = mlxsw_sp_port->mapping.lane; int err; if (!mlxsw_sp_port->split) err = snprintf(name, len, "p%d", module + 1); else err = snprintf(name, len, "p%ds%d", module + 1, lane / width); if (err >= len) return -EINVAL; return 0; } static struct mlxsw_sp_port_mall_tc_entry * mlxsw_sp_port_mall_tc_entry_find(struct mlxsw_sp_port *port, unsigned long cookie) { struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry; list_for_each_entry(mall_tc_entry, &port->mall_tc_list, list) if (mall_tc_entry->cookie == cookie) return mall_tc_entry; return NULL; } static int mlxsw_sp_port_add_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_port_mall_mirror_tc_entry *mirror, const struct tc_action *a, bool ingress) { struct net *net = dev_net(mlxsw_sp_port->dev); enum mlxsw_sp_span_type span_type; struct mlxsw_sp_port *to_port; struct net_device *to_dev; int ifindex; ifindex = tcf_mirred_ifindex(a); to_dev = __dev_get_by_index(net, ifindex); if (!to_dev) { netdev_err(mlxsw_sp_port->dev, "Could not find requested device\n"); return -EINVAL; } if (!mlxsw_sp_port_dev_check(to_dev)) { netdev_err(mlxsw_sp_port->dev, "Cannot mirror to a non-spectrum port"); return -EOPNOTSUPP; } to_port = netdev_priv(to_dev); mirror->to_local_port = to_port->local_port; mirror->ingress = ingress; span_type = ingress ? MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS; return mlxsw_sp_span_mirror_add(mlxsw_sp_port, to_port, span_type); } static void mlxsw_sp_port_del_cls_matchall_mirror(struct mlxsw_sp_port *mlxsw_sp_port, struct mlxsw_sp_port_mall_mirror_tc_entry *mirror) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; enum mlxsw_sp_span_type span_type; struct mlxsw_sp_port *to_port; to_port = mlxsw_sp->ports[mirror->to_local_port]; span_type = mirror->ingress ? MLXSW_SP_SPAN_INGRESS : MLXSW_SP_SPAN_EGRESS; mlxsw_sp_span_mirror_remove(mlxsw_sp_port, to_port, span_type); } static int mlxsw_sp_port_add_cls_matchall_sample(struct mlxsw_sp_port *mlxsw_sp_port, struct tc_cls_matchall_offload *cls, const struct tc_action *a, bool ingress) { int err; if (!mlxsw_sp_port->sample) return -EOPNOTSUPP; if (rtnl_dereference(mlxsw_sp_port->sample->psample_group)) { netdev_err(mlxsw_sp_port->dev, "sample already active\n"); return -EEXIST; } if (tcf_sample_rate(a) > MLXSW_REG_MPSC_RATE_MAX) { netdev_err(mlxsw_sp_port->dev, "sample rate not supported\n"); return -EOPNOTSUPP; } rcu_assign_pointer(mlxsw_sp_port->sample->psample_group, tcf_sample_psample_group(a)); mlxsw_sp_port->sample->truncate = tcf_sample_truncate(a); mlxsw_sp_port->sample->trunc_size = tcf_sample_trunc_size(a); mlxsw_sp_port->sample->rate = tcf_sample_rate(a); err = mlxsw_sp_port_sample_set(mlxsw_sp_port, true, tcf_sample_rate(a)); if (err) goto err_port_sample_set; return 0; err_port_sample_set: RCU_INIT_POINTER(mlxsw_sp_port->sample->psample_group, NULL); return err; } static void mlxsw_sp_port_del_cls_matchall_sample(struct mlxsw_sp_port *mlxsw_sp_port) { if (!mlxsw_sp_port->sample) return; mlxsw_sp_port_sample_set(mlxsw_sp_port, false, 1); RCU_INIT_POINTER(mlxsw_sp_port->sample->psample_group, NULL); } static int mlxsw_sp_port_add_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port, __be16 protocol, struct tc_cls_matchall_offload *cls, bool ingress) { struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry; const struct tc_action *a; LIST_HEAD(actions); int err; if (!tc_single_action(cls->exts)) { netdev_err(mlxsw_sp_port->dev, "only singular actions are supported\n"); return -EOPNOTSUPP; } mall_tc_entry = kzalloc(sizeof(*mall_tc_entry), GFP_KERNEL); if (!mall_tc_entry) return -ENOMEM; mall_tc_entry->cookie = cls->cookie; tcf_exts_to_list(cls->exts, &actions); a = list_first_entry(&actions, struct tc_action, list); if (is_tcf_mirred_egress_mirror(a) && protocol == htons(ETH_P_ALL)) { struct mlxsw_sp_port_mall_mirror_tc_entry *mirror; mall_tc_entry->type = MLXSW_SP_PORT_MALL_MIRROR; mirror = &mall_tc_entry->mirror; err = mlxsw_sp_port_add_cls_matchall_mirror(mlxsw_sp_port, mirror, a, ingress); } else if (is_tcf_sample(a) && protocol == htons(ETH_P_ALL)) { mall_tc_entry->type = MLXSW_SP_PORT_MALL_SAMPLE; err = mlxsw_sp_port_add_cls_matchall_sample(mlxsw_sp_port, cls, a, ingress); } else { err = -EOPNOTSUPP; } if (err) goto err_add_action; list_add_tail(&mall_tc_entry->list, &mlxsw_sp_port->mall_tc_list); return 0; err_add_action: kfree(mall_tc_entry); return err; } static void mlxsw_sp_port_del_cls_matchall(struct mlxsw_sp_port *mlxsw_sp_port, struct tc_cls_matchall_offload *cls) { struct mlxsw_sp_port_mall_tc_entry *mall_tc_entry; mall_tc_entry = mlxsw_sp_port_mall_tc_entry_find(mlxsw_sp_port, cls->cookie); if (!mall_tc_entry) { netdev_dbg(mlxsw_sp_port->dev, "tc entry not found on port\n"); return; } list_del(&mall_tc_entry->list); switch (mall_tc_entry->type) { case MLXSW_SP_PORT_MALL_MIRROR: mlxsw_sp_port_del_cls_matchall_mirror(mlxsw_sp_port, &mall_tc_entry->mirror); break; case MLXSW_SP_PORT_MALL_SAMPLE: mlxsw_sp_port_del_cls_matchall_sample(mlxsw_sp_port); break; default: WARN_ON(1); } kfree(mall_tc_entry); } static int mlxsw_sp_setup_tc(struct net_device *dev, u32 handle, __be16 proto, struct tc_to_netdev *tc) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); bool ingress = TC_H_MAJ(handle) == TC_H_MAJ(TC_H_INGRESS); switch (tc->type) { case TC_SETUP_MATCHALL: switch (tc->cls_mall->command) { case TC_CLSMATCHALL_REPLACE: return mlxsw_sp_port_add_cls_matchall(mlxsw_sp_port, proto, tc->cls_mall, ingress); case TC_CLSMATCHALL_DESTROY: mlxsw_sp_port_del_cls_matchall(mlxsw_sp_port, tc->cls_mall); return 0; default: return -EOPNOTSUPP; } case TC_SETUP_CLSFLOWER: switch (tc->cls_flower->command) { case TC_CLSFLOWER_REPLACE: return mlxsw_sp_flower_replace(mlxsw_sp_port, ingress, proto, tc->cls_flower); case TC_CLSFLOWER_DESTROY: mlxsw_sp_flower_destroy(mlxsw_sp_port, ingress, tc->cls_flower); return 0; case TC_CLSFLOWER_STATS: return mlxsw_sp_flower_stats(mlxsw_sp_port, ingress, tc->cls_flower); default: return -EOPNOTSUPP; } } return -EOPNOTSUPP; } static const struct net_device_ops mlxsw_sp_port_netdev_ops = { .ndo_open = mlxsw_sp_port_open, .ndo_stop = mlxsw_sp_port_stop, .ndo_start_xmit = mlxsw_sp_port_xmit, .ndo_setup_tc = mlxsw_sp_setup_tc, .ndo_set_rx_mode = mlxsw_sp_set_rx_mode, .ndo_set_mac_address = mlxsw_sp_port_set_mac_address, .ndo_change_mtu = mlxsw_sp_port_change_mtu, .ndo_get_stats64 = mlxsw_sp_port_get_stats64, .ndo_has_offload_stats = mlxsw_sp_port_has_offload_stats, .ndo_get_offload_stats = mlxsw_sp_port_get_offload_stats, .ndo_vlan_rx_add_vid = mlxsw_sp_port_add_vid, .ndo_vlan_rx_kill_vid = mlxsw_sp_port_kill_vid, .ndo_fdb_add = switchdev_port_fdb_add, .ndo_fdb_del = switchdev_port_fdb_del, .ndo_fdb_dump = switchdev_port_fdb_dump, .ndo_bridge_setlink = switchdev_port_bridge_setlink, .ndo_bridge_getlink = switchdev_port_bridge_getlink, .ndo_bridge_dellink = switchdev_port_bridge_dellink, .ndo_get_phys_port_name = mlxsw_sp_port_get_phys_port_name, }; static void mlxsw_sp_port_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; strlcpy(drvinfo->driver, mlxsw_sp_driver_name, sizeof(drvinfo->driver)); strlcpy(drvinfo->version, mlxsw_sp_driver_version, sizeof(drvinfo->version)); snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), "%d.%d.%d", mlxsw_sp->bus_info->fw_rev.major, mlxsw_sp->bus_info->fw_rev.minor, mlxsw_sp->bus_info->fw_rev.subminor); strlcpy(drvinfo->bus_info, mlxsw_sp->bus_info->device_name, sizeof(drvinfo->bus_info)); } static void mlxsw_sp_port_get_pauseparam(struct net_device *dev, struct ethtool_pauseparam *pause) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); pause->rx_pause = mlxsw_sp_port->link.rx_pause; pause->tx_pause = mlxsw_sp_port->link.tx_pause; } static int mlxsw_sp_port_pause_set(struct mlxsw_sp_port *mlxsw_sp_port, struct ethtool_pauseparam *pause) { char pfcc_pl[MLXSW_REG_PFCC_LEN]; mlxsw_reg_pfcc_pack(pfcc_pl, mlxsw_sp_port->local_port); mlxsw_reg_pfcc_pprx_set(pfcc_pl, pause->rx_pause); mlxsw_reg_pfcc_pptx_set(pfcc_pl, pause->tx_pause); return mlxsw_reg_write(mlxsw_sp_port->mlxsw_sp->core, MLXSW_REG(pfcc), pfcc_pl); } static int mlxsw_sp_port_set_pauseparam(struct net_device *dev, struct ethtool_pauseparam *pause) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); bool pause_en = pause->tx_pause || pause->rx_pause; int err; if (mlxsw_sp_port->dcb.pfc && mlxsw_sp_port->dcb.pfc->pfc_en) { netdev_err(dev, "PFC already enabled on port\n"); return -EINVAL; } if (pause->autoneg) { netdev_err(dev, "PAUSE frames autonegotiation isn't supported\n"); return -EINVAL; } err = mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en); if (err) { netdev_err(dev, "Failed to configure port's headroom\n"); return err; } err = mlxsw_sp_port_pause_set(mlxsw_sp_port, pause); if (err) { netdev_err(dev, "Failed to set PAUSE parameters\n"); goto err_port_pause_configure; } mlxsw_sp_port->link.rx_pause = pause->rx_pause; mlxsw_sp_port->link.tx_pause = pause->tx_pause; return 0; err_port_pause_configure: pause_en = mlxsw_sp_port_is_pause_en(mlxsw_sp_port); mlxsw_sp_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en); return err; } struct mlxsw_sp_port_hw_stats { char str[ETH_GSTRING_LEN]; u64 (*getter)(const char *payload); bool cells_bytes; }; static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_stats[] = { { .str = "a_frames_transmitted_ok", .getter = mlxsw_reg_ppcnt_a_frames_transmitted_ok_get, }, { .str = "a_frames_received_ok", .getter = mlxsw_reg_ppcnt_a_frames_received_ok_get, }, { .str = "a_frame_check_sequence_errors", .getter = mlxsw_reg_ppcnt_a_frame_check_sequence_errors_get, }, { .str = "a_alignment_errors", .getter = mlxsw_reg_ppcnt_a_alignment_errors_get, }, { .str = "a_octets_transmitted_ok", .getter = mlxsw_reg_ppcnt_a_octets_transmitted_ok_get, }, { .str = "a_octets_received_ok", .getter = mlxsw_reg_ppcnt_a_octets_received_ok_get, }, { .str = "a_multicast_frames_xmitted_ok", .getter = mlxsw_reg_ppcnt_a_multicast_frames_xmitted_ok_get, }, { .str = "a_broadcast_frames_xmitted_ok", .getter = mlxsw_reg_ppcnt_a_broadcast_frames_xmitted_ok_get, }, { .str = "a_multicast_frames_received_ok", .getter = mlxsw_reg_ppcnt_a_multicast_frames_received_ok_get, }, { .str = "a_broadcast_frames_received_ok", .getter = mlxsw_reg_ppcnt_a_broadcast_frames_received_ok_get, }, { .str = "a_in_range_length_errors", .getter = mlxsw_reg_ppcnt_a_in_range_length_errors_get, }, { .str = "a_out_of_range_length_field", .getter = mlxsw_reg_ppcnt_a_out_of_range_length_field_get, }, { .str = "a_frame_too_long_errors", .getter = mlxsw_reg_ppcnt_a_frame_too_long_errors_get, }, { .str = "a_symbol_error_during_carrier", .getter = mlxsw_reg_ppcnt_a_symbol_error_during_carrier_get, }, { .str = "a_mac_control_frames_transmitted", .getter = mlxsw_reg_ppcnt_a_mac_control_frames_transmitted_get, }, { .str = "a_mac_control_frames_received", .getter = mlxsw_reg_ppcnt_a_mac_control_frames_received_get, }, { .str = "a_unsupported_opcodes_received", .getter = mlxsw_reg_ppcnt_a_unsupported_opcodes_received_get, }, { .str = "a_pause_mac_ctrl_frames_received", .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_received_get, }, { .str = "a_pause_mac_ctrl_frames_xmitted", .getter = mlxsw_reg_ppcnt_a_pause_mac_ctrl_frames_transmitted_get, }, }; #define MLXSW_SP_PORT_HW_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_stats) static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_prio_stats[] = { { .str = "rx_octets_prio", .getter = mlxsw_reg_ppcnt_rx_octets_get, }, { .str = "rx_frames_prio", .getter = mlxsw_reg_ppcnt_rx_frames_get, }, { .str = "tx_octets_prio", .getter = mlxsw_reg_ppcnt_tx_octets_get, }, { .str = "tx_frames_prio", .getter = mlxsw_reg_ppcnt_tx_frames_get, }, { .str = "rx_pause_prio", .getter = mlxsw_reg_ppcnt_rx_pause_get, }, { .str = "rx_pause_duration_prio", .getter = mlxsw_reg_ppcnt_rx_pause_duration_get, }, { .str = "tx_pause_prio", .getter = mlxsw_reg_ppcnt_tx_pause_get, }, { .str = "tx_pause_duration_prio", .getter = mlxsw_reg_ppcnt_tx_pause_duration_get, }, }; #define MLXSW_SP_PORT_HW_PRIO_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_prio_stats) static struct mlxsw_sp_port_hw_stats mlxsw_sp_port_hw_tc_stats[] = { { .str = "tc_transmit_queue_tc", .getter = mlxsw_reg_ppcnt_tc_transmit_queue_get, .cells_bytes = true, }, { .str = "tc_no_buffer_discard_uc_tc", .getter = mlxsw_reg_ppcnt_tc_no_buffer_discard_uc_get, }, }; #define MLXSW_SP_PORT_HW_TC_STATS_LEN ARRAY_SIZE(mlxsw_sp_port_hw_tc_stats) #define MLXSW_SP_PORT_ETHTOOL_STATS_LEN (MLXSW_SP_PORT_HW_STATS_LEN + \ (MLXSW_SP_PORT_HW_PRIO_STATS_LEN + \ MLXSW_SP_PORT_HW_TC_STATS_LEN) * \ IEEE_8021QAZ_MAX_TCS) static void mlxsw_sp_port_get_prio_strings(u8 **p, int prio) { int i; for (i = 0; i < MLXSW_SP_PORT_HW_PRIO_STATS_LEN; i++) { snprintf(*p, ETH_GSTRING_LEN, "%s_%d", mlxsw_sp_port_hw_prio_stats[i].str, prio); *p += ETH_GSTRING_LEN; } } static void mlxsw_sp_port_get_tc_strings(u8 **p, int tc) { int i; for (i = 0; i < MLXSW_SP_PORT_HW_TC_STATS_LEN; i++) { snprintf(*p, ETH_GSTRING_LEN, "%s_%d", mlxsw_sp_port_hw_tc_stats[i].str, tc); *p += ETH_GSTRING_LEN; } } static void mlxsw_sp_port_get_strings(struct net_device *dev, u32 stringset, u8 *data) { u8 *p = data; int i; switch (stringset) { case ETH_SS_STATS: for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) { memcpy(p, mlxsw_sp_port_hw_stats[i].str, ETH_GSTRING_LEN); p += ETH_GSTRING_LEN; } for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) mlxsw_sp_port_get_prio_strings(&p, i); for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) mlxsw_sp_port_get_tc_strings(&p, i); break; } } static int mlxsw_sp_port_set_phys_id(struct net_device *dev, enum ethtool_phys_id_state state) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char mlcr_pl[MLXSW_REG_MLCR_LEN]; bool active; switch (state) { case ETHTOOL_ID_ACTIVE: active = true; break; case ETHTOOL_ID_INACTIVE: active = false; break; default: return -EOPNOTSUPP; } mlxsw_reg_mlcr_pack(mlcr_pl, mlxsw_sp_port->local_port, active); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(mlcr), mlcr_pl); } static int mlxsw_sp_get_hw_stats_by_group(struct mlxsw_sp_port_hw_stats **p_hw_stats, int *p_len, enum mlxsw_reg_ppcnt_grp grp) { switch (grp) { case MLXSW_REG_PPCNT_IEEE_8023_CNT: *p_hw_stats = mlxsw_sp_port_hw_stats; *p_len = MLXSW_SP_PORT_HW_STATS_LEN; break; case MLXSW_REG_PPCNT_PRIO_CNT: *p_hw_stats = mlxsw_sp_port_hw_prio_stats; *p_len = MLXSW_SP_PORT_HW_PRIO_STATS_LEN; break; case MLXSW_REG_PPCNT_TC_CNT: *p_hw_stats = mlxsw_sp_port_hw_tc_stats; *p_len = MLXSW_SP_PORT_HW_TC_STATS_LEN; break; default: WARN_ON(1); return -EOPNOTSUPP; } return 0; } static void __mlxsw_sp_port_get_stats(struct net_device *dev, enum mlxsw_reg_ppcnt_grp grp, int prio, u64 *data, int data_index) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct mlxsw_sp_port_hw_stats *hw_stats; char ppcnt_pl[MLXSW_REG_PPCNT_LEN]; int i, len; int err; err = mlxsw_sp_get_hw_stats_by_group(&hw_stats, &len, grp); if (err) return; mlxsw_sp_port_get_stats_raw(dev, grp, prio, ppcnt_pl); for (i = 0; i < len; i++) { data[data_index + i] = hw_stats[i].getter(ppcnt_pl); if (!hw_stats[i].cells_bytes) continue; data[data_index + i] = mlxsw_sp_cells_bytes(mlxsw_sp, data[data_index + i]); } } static void mlxsw_sp_port_get_stats(struct net_device *dev, struct ethtool_stats *stats, u64 *data) { int i, data_index = 0; /* IEEE 802.3 Counters */ __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_IEEE_8023_CNT, 0, data, data_index); data_index = MLXSW_SP_PORT_HW_STATS_LEN; /* Per-Priority Counters */ for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_PRIO_CNT, i, data, data_index); data_index += MLXSW_SP_PORT_HW_PRIO_STATS_LEN; } /* Per-TC Counters */ for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { __mlxsw_sp_port_get_stats(dev, MLXSW_REG_PPCNT_TC_CNT, i, data, data_index); data_index += MLXSW_SP_PORT_HW_TC_STATS_LEN; } } static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset) { switch (sset) { case ETH_SS_STATS: return MLXSW_SP_PORT_ETHTOOL_STATS_LEN; default: return -EOPNOTSUPP; } } struct mlxsw_sp_port_link_mode { enum ethtool_link_mode_bit_indices mask_ethtool; u32 mask; u32 speed; }; static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = { { .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_T, .mask_ethtool = ETHTOOL_LINK_MODE_100baseT_Full_BIT, .speed = SPEED_100, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_SGMII | MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX, .mask_ethtool = ETHTOOL_LINK_MODE_1000baseKX_Full_BIT, .speed = SPEED_1000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T, .mask_ethtool = ETHTOOL_LINK_MODE_10000baseT_Full_BIT, .speed = SPEED_10000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4, .mask_ethtool = ETHTOOL_LINK_MODE_10000baseKX4_Full_BIT, .speed = SPEED_10000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_ER_LR, .mask_ethtool = ETHTOOL_LINK_MODE_10000baseKR_Full_BIT, .speed = SPEED_10000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2, .mask_ethtool = ETHTOOL_LINK_MODE_20000baseKR2_Full_BIT, .speed = SPEED_20000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4, .mask_ethtool = ETHTOOL_LINK_MODE_40000baseCR4_Full_BIT, .speed = SPEED_40000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4, .mask_ethtool = ETHTOOL_LINK_MODE_40000baseKR4_Full_BIT, .speed = SPEED_40000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4, .mask_ethtool = ETHTOOL_LINK_MODE_40000baseSR4_Full_BIT, .speed = SPEED_40000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4, .mask_ethtool = ETHTOOL_LINK_MODE_40000baseLR4_Full_BIT, .speed = SPEED_40000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR, .mask_ethtool = ETHTOOL_LINK_MODE_25000baseCR_Full_BIT, .speed = SPEED_25000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR, .mask_ethtool = ETHTOOL_LINK_MODE_25000baseKR_Full_BIT, .speed = SPEED_25000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR, .mask_ethtool = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, .speed = SPEED_25000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR, .mask_ethtool = ETHTOOL_LINK_MODE_25000baseSR_Full_BIT, .speed = SPEED_25000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2, .mask_ethtool = ETHTOOL_LINK_MODE_50000baseCR2_Full_BIT, .speed = SPEED_50000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2, .mask_ethtool = ETHTOOL_LINK_MODE_50000baseKR2_Full_BIT, .speed = SPEED_50000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_SR2, .mask_ethtool = ETHTOOL_LINK_MODE_50000baseSR2_Full_BIT, .speed = SPEED_50000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, .mask_ethtool = ETHTOOL_LINK_MODE_56000baseKR4_Full_BIT, .speed = SPEED_56000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, .mask_ethtool = ETHTOOL_LINK_MODE_56000baseCR4_Full_BIT, .speed = SPEED_56000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, .mask_ethtool = ETHTOOL_LINK_MODE_56000baseSR4_Full_BIT, .speed = SPEED_56000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, .mask_ethtool = ETHTOOL_LINK_MODE_56000baseLR4_Full_BIT, .speed = SPEED_56000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4, .mask_ethtool = ETHTOOL_LINK_MODE_100000baseCR4_Full_BIT, .speed = SPEED_100000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4, .mask_ethtool = ETHTOOL_LINK_MODE_100000baseSR4_Full_BIT, .speed = SPEED_100000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4, .mask_ethtool = ETHTOOL_LINK_MODE_100000baseKR4_Full_BIT, .speed = SPEED_100000, }, { .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4, .mask_ethtool = ETHTOOL_LINK_MODE_100000baseLR4_ER4_Full_BIT, .speed = SPEED_100000, }, }; #define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode) static void mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto, struct ethtool_link_ksettings *cmd) { if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 | MLXSW_REG_PTYS_ETH_SPEED_SGMII)) ethtool_link_ksettings_add_link_mode(cmd, supported, FIBRE); if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 | MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX)) ethtool_link_ksettings_add_link_mode(cmd, supported, Backplane); } static void mlxsw_sp_from_ptys_link(u32 ptys_eth_proto, unsigned long *mode) { int i; for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) __set_bit(mlxsw_sp_port_link_mode[i].mask_ethtool, mode); } } static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto, struct ethtool_link_ksettings *cmd) { u32 speed = SPEED_UNKNOWN; u8 duplex = DUPLEX_UNKNOWN; int i; if (!carrier_ok) goto out; for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) { speed = mlxsw_sp_port_link_mode[i].speed; duplex = DUPLEX_FULL; break; } } out: cmd->base.speed = speed; cmd->base.duplex = duplex; } static u8 mlxsw_sp_port_connector_port(u32 ptys_eth_proto) { if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_SR | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 | MLXSW_REG_PTYS_ETH_SPEED_SGMII)) return PORT_FIBRE; if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CR | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4)) return PORT_DA; if (ptys_eth_proto & (MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KR | MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4 | MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4 | MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4)) return PORT_NONE; return PORT_OTHER; } static u32 mlxsw_sp_to_ptys_advert_link(const struct ethtool_link_ksettings *cmd) { u32 ptys_proto = 0; int i; for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { if (test_bit(mlxsw_sp_port_link_mode[i].mask_ethtool, cmd->link_modes.advertising)) ptys_proto |= mlxsw_sp_port_link_mode[i].mask; } return ptys_proto; } static u32 mlxsw_sp_to_ptys_speed(u32 speed) { u32 ptys_proto = 0; int i; for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { if (speed == mlxsw_sp_port_link_mode[i].speed) ptys_proto |= mlxsw_sp_port_link_mode[i].mask; } return ptys_proto; } static u32 mlxsw_sp_to_ptys_upper_speed(u32 upper_speed) { u32 ptys_proto = 0; int i; for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { if (mlxsw_sp_port_link_mode[i].speed <= upper_speed) ptys_proto |= mlxsw_sp_port_link_mode[i].mask; } return ptys_proto; } static void mlxsw_sp_port_get_link_supported(u32 eth_proto_cap, struct ethtool_link_ksettings *cmd) { ethtool_link_ksettings_add_link_mode(cmd, supported, Asym_Pause); ethtool_link_ksettings_add_link_mode(cmd, supported, Autoneg); ethtool_link_ksettings_add_link_mode(cmd, supported, Pause); mlxsw_sp_from_ptys_supported_port(eth_proto_cap, cmd); mlxsw_sp_from_ptys_link(eth_proto_cap, cmd->link_modes.supported); } static void mlxsw_sp_port_get_link_advertise(u32 eth_proto_admin, bool autoneg, struct ethtool_link_ksettings *cmd) { if (!autoneg) return; ethtool_link_ksettings_add_link_mode(cmd, advertising, Autoneg); mlxsw_sp_from_ptys_link(eth_proto_admin, cmd->link_modes.advertising); } static void mlxsw_sp_port_get_link_lp_advertise(u32 eth_proto_lp, u8 autoneg_status, struct ethtool_link_ksettings *cmd) { if (autoneg_status != MLXSW_REG_PTYS_AN_STATUS_OK || !eth_proto_lp) return; ethtool_link_ksettings_add_link_mode(cmd, lp_advertising, Autoneg); mlxsw_sp_from_ptys_link(eth_proto_lp, cmd->link_modes.lp_advertising); } static int mlxsw_sp_port_get_link_ksettings(struct net_device *dev, struct ethtool_link_ksettings *cmd) { u32 eth_proto_cap, eth_proto_admin, eth_proto_oper, eth_proto_lp; struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char ptys_pl[MLXSW_REG_PTYS_LEN]; u8 autoneg_status; bool autoneg; int err; autoneg = mlxsw_sp_port->link.autoneg; mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port, 0); err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); if (err) return err; mlxsw_reg_ptys_eth_unpack(ptys_pl, ð_proto_cap, ð_proto_admin, ð_proto_oper); mlxsw_sp_port_get_link_supported(eth_proto_cap, cmd); mlxsw_sp_port_get_link_advertise(eth_proto_admin, autoneg, cmd); eth_proto_lp = mlxsw_reg_ptys_eth_proto_lp_advertise_get(ptys_pl); autoneg_status = mlxsw_reg_ptys_an_status_get(ptys_pl); mlxsw_sp_port_get_link_lp_advertise(eth_proto_lp, autoneg_status, cmd); cmd->base.autoneg = autoneg ? AUTONEG_ENABLE : AUTONEG_DISABLE; cmd->base.port = mlxsw_sp_port_connector_port(eth_proto_oper); mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev), eth_proto_oper, cmd); return 0; } static int mlxsw_sp_port_set_link_ksettings(struct net_device *dev, const struct ethtool_link_ksettings *cmd) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char ptys_pl[MLXSW_REG_PTYS_LEN]; u32 eth_proto_cap, eth_proto_new; bool autoneg; int err; mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port, 0); err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); if (err) return err; mlxsw_reg_ptys_eth_unpack(ptys_pl, ð_proto_cap, NULL, NULL); autoneg = cmd->base.autoneg == AUTONEG_ENABLE; eth_proto_new = autoneg ? mlxsw_sp_to_ptys_advert_link(cmd) : mlxsw_sp_to_ptys_speed(cmd->base.speed); eth_proto_new = eth_proto_new & eth_proto_cap; if (!eth_proto_new) { netdev_err(dev, "No supported speed requested\n"); return -EINVAL; } mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port, eth_proto_new); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); if (err) return err; if (!netif_running(dev)) return 0; mlxsw_sp_port->link.autoneg = autoneg; mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true); return 0; } static const struct ethtool_ops mlxsw_sp_port_ethtool_ops = { .get_drvinfo = mlxsw_sp_port_get_drvinfo, .get_link = ethtool_op_get_link, .get_pauseparam = mlxsw_sp_port_get_pauseparam, .set_pauseparam = mlxsw_sp_port_set_pauseparam, .get_strings = mlxsw_sp_port_get_strings, .set_phys_id = mlxsw_sp_port_set_phys_id, .get_ethtool_stats = mlxsw_sp_port_get_stats, .get_sset_count = mlxsw_sp_port_get_sset_count, .get_link_ksettings = mlxsw_sp_port_get_link_ksettings, .set_link_ksettings = mlxsw_sp_port_set_link_ksettings, }; static int mlxsw_sp_port_speed_by_width_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 width) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; u32 upper_speed = MLXSW_SP_PORT_BASE_SPEED * width; char ptys_pl[MLXSW_REG_PTYS_LEN]; u32 eth_proto_admin; eth_proto_admin = mlxsw_sp_to_ptys_upper_speed(upper_speed); mlxsw_reg_ptys_eth_pack(ptys_pl, mlxsw_sp_port->local_port, eth_proto_admin); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); } int mlxsw_sp_port_ets_set(struct mlxsw_sp_port *mlxsw_sp_port, enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index, bool dwrr, u8 dwrr_weight) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char qeec_pl[MLXSW_REG_QEEC_LEN]; mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index, next_index); mlxsw_reg_qeec_de_set(qeec_pl, true); mlxsw_reg_qeec_dwrr_set(qeec_pl, dwrr); mlxsw_reg_qeec_dwrr_weight_set(qeec_pl, dwrr_weight); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl); } int mlxsw_sp_port_ets_maxrate_set(struct mlxsw_sp_port *mlxsw_sp_port, enum mlxsw_reg_qeec_hr hr, u8 index, u8 next_index, u32 maxrate) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char qeec_pl[MLXSW_REG_QEEC_LEN]; mlxsw_reg_qeec_pack(qeec_pl, mlxsw_sp_port->local_port, hr, index, next_index); mlxsw_reg_qeec_mase_set(qeec_pl, true); mlxsw_reg_qeec_max_shaper_rate_set(qeec_pl, maxrate); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qeec), qeec_pl); } int mlxsw_sp_port_prio_tc_set(struct mlxsw_sp_port *mlxsw_sp_port, u8 switch_prio, u8 tclass) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char qtct_pl[MLXSW_REG_QTCT_LEN]; mlxsw_reg_qtct_pack(qtct_pl, mlxsw_sp_port->local_port, switch_prio, tclass); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(qtct), qtct_pl); } static int mlxsw_sp_port_ets_init(struct mlxsw_sp_port *mlxsw_sp_port) { int err, i; /* Setup the elements hierarcy, so that each TC is linked to * one subgroup, which are all member in the same group. */ err = mlxsw_sp_port_ets_set(mlxsw_sp_port, MLXSW_REG_QEEC_HIERARCY_GROUP, 0, 0, false, 0); if (err) return err; for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { err = mlxsw_sp_port_ets_set(mlxsw_sp_port, MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i, 0, false, 0); if (err) return err; } for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { err = mlxsw_sp_port_ets_set(mlxsw_sp_port, MLXSW_REG_QEEC_HIERARCY_TC, i, i, false, 0); if (err) return err; } /* Make sure the max shaper is disabled in all hierarcies that * support it. */ err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port, MLXSW_REG_QEEC_HIERARCY_PORT, 0, 0, MLXSW_REG_QEEC_MAS_DIS); if (err) return err; for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port, MLXSW_REG_QEEC_HIERARCY_SUBGROUP, i, 0, MLXSW_REG_QEEC_MAS_DIS); if (err) return err; } for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { err = mlxsw_sp_port_ets_maxrate_set(mlxsw_sp_port, MLXSW_REG_QEEC_HIERARCY_TC, i, i, MLXSW_REG_QEEC_MAS_DIS); if (err) return err; } /* Map all priorities to traffic class 0. */ for (i = 0; i < IEEE_8021QAZ_MAX_TCS; i++) { err = mlxsw_sp_port_prio_tc_set(mlxsw_sp_port, i, 0); if (err) return err; } return 0; } static int mlxsw_sp_port_pvid_vport_create(struct mlxsw_sp_port *mlxsw_sp_port) { mlxsw_sp_port->pvid = 1; return mlxsw_sp_port_add_vid(mlxsw_sp_port->dev, 0, 1); } static int mlxsw_sp_port_pvid_vport_destroy(struct mlxsw_sp_port *mlxsw_sp_port) { return mlxsw_sp_port_kill_vid(mlxsw_sp_port->dev, 0, 1); } static int __mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port, bool split, u8 module, u8 width, u8 lane) { struct mlxsw_sp_port *mlxsw_sp_port; struct net_device *dev; size_t bytes; int err; dev = alloc_etherdev(sizeof(struct mlxsw_sp_port)); if (!dev) return -ENOMEM; SET_NETDEV_DEV(dev, mlxsw_sp->bus_info->dev); mlxsw_sp_port = netdev_priv(dev); mlxsw_sp_port->dev = dev; mlxsw_sp_port->mlxsw_sp = mlxsw_sp; mlxsw_sp_port->local_port = local_port; mlxsw_sp_port->split = split; mlxsw_sp_port->mapping.module = module; mlxsw_sp_port->mapping.width = width; mlxsw_sp_port->mapping.lane = lane; mlxsw_sp_port->link.autoneg = 1; bytes = DIV_ROUND_UP(VLAN_N_VID, BITS_PER_BYTE); mlxsw_sp_port->active_vlans = kzalloc(bytes, GFP_KERNEL); if (!mlxsw_sp_port->active_vlans) { err = -ENOMEM; goto err_port_active_vlans_alloc; } mlxsw_sp_port->untagged_vlans = kzalloc(bytes, GFP_KERNEL); if (!mlxsw_sp_port->untagged_vlans) { err = -ENOMEM; goto err_port_untagged_vlans_alloc; } INIT_LIST_HEAD(&mlxsw_sp_port->vports_list); INIT_LIST_HEAD(&mlxsw_sp_port->mall_tc_list); mlxsw_sp_port->pcpu_stats = netdev_alloc_pcpu_stats(struct mlxsw_sp_port_pcpu_stats); if (!mlxsw_sp_port->pcpu_stats) { err = -ENOMEM; goto err_alloc_stats; } mlxsw_sp_port->sample = kzalloc(sizeof(*mlxsw_sp_port->sample), GFP_KERNEL); if (!mlxsw_sp_port->sample) { err = -ENOMEM; goto err_alloc_sample; } mlxsw_sp_port->hw_stats.cache = kzalloc(sizeof(*mlxsw_sp_port->hw_stats.cache), GFP_KERNEL); if (!mlxsw_sp_port->hw_stats.cache) { err = -ENOMEM; goto err_alloc_hw_stats; } INIT_DELAYED_WORK(&mlxsw_sp_port->hw_stats.update_dw, &update_stats_cache); dev->netdev_ops = &mlxsw_sp_port_netdev_ops; dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops; err = mlxsw_sp_port_swid_set(mlxsw_sp_port, 0); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set SWID\n", mlxsw_sp_port->local_port); goto err_port_swid_set; } err = mlxsw_sp_port_dev_addr_init(mlxsw_sp_port); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Unable to init port mac address\n", mlxsw_sp_port->local_port); goto err_dev_addr_init; } netif_carrier_off(dev); dev->features |= NETIF_F_NETNS_LOCAL | NETIF_F_LLTX | NETIF_F_SG | NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_TC; dev->hw_features |= NETIF_F_HW_TC; dev->min_mtu = 0; dev->max_mtu = ETH_MAX_MTU; /* Each packet needs to have a Tx header (metadata) on top all other * headers. */ dev->needed_headroom = MLXSW_TXHDR_LEN; err = mlxsw_sp_port_system_port_mapping_set(mlxsw_sp_port); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set system port mapping\n", mlxsw_sp_port->local_port); goto err_port_system_port_mapping_set; } err = mlxsw_sp_port_speed_by_width_set(mlxsw_sp_port, width); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to enable speeds\n", mlxsw_sp_port->local_port); goto err_port_speed_by_width_set; } err = mlxsw_sp_port_mtu_set(mlxsw_sp_port, ETH_DATA_LEN); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to set MTU\n", mlxsw_sp_port->local_port); goto err_port_mtu_set; } err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); if (err) goto err_port_admin_status_set; err = mlxsw_sp_port_buffers_init(mlxsw_sp_port); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize buffers\n", mlxsw_sp_port->local_port); goto err_port_buffers_init; } err = mlxsw_sp_port_ets_init(mlxsw_sp_port); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize ETS\n", mlxsw_sp_port->local_port); goto err_port_ets_init; } /* ETS and buffers must be initialized before DCB. */ err = mlxsw_sp_port_dcb_init(mlxsw_sp_port); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to initialize DCB\n", mlxsw_sp_port->local_port); goto err_port_dcb_init; } err = mlxsw_sp_port_pvid_vport_create(mlxsw_sp_port); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to create PVID vPort\n", mlxsw_sp_port->local_port); goto err_port_pvid_vport_create; } mlxsw_sp_port_switchdev_init(mlxsw_sp_port); mlxsw_sp->ports[local_port] = mlxsw_sp_port; err = register_netdev(dev); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to register netdev\n", mlxsw_sp_port->local_port); goto err_register_netdev; } mlxsw_core_port_eth_set(mlxsw_sp->core, mlxsw_sp_port->local_port, mlxsw_sp_port, dev, mlxsw_sp_port->split, module); mlxsw_core_schedule_dw(&mlxsw_sp_port->hw_stats.update_dw, 0); return 0; err_register_netdev: mlxsw_sp->ports[local_port] = NULL; mlxsw_sp_port_switchdev_fini(mlxsw_sp_port); mlxsw_sp_port_pvid_vport_destroy(mlxsw_sp_port); err_port_pvid_vport_create: mlxsw_sp_port_dcb_fini(mlxsw_sp_port); err_port_dcb_init: err_port_ets_init: err_port_buffers_init: err_port_admin_status_set: err_port_mtu_set: err_port_speed_by_width_set: err_port_system_port_mapping_set: err_dev_addr_init: mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT); err_port_swid_set: kfree(mlxsw_sp_port->hw_stats.cache); err_alloc_hw_stats: kfree(mlxsw_sp_port->sample); err_alloc_sample: free_percpu(mlxsw_sp_port->pcpu_stats); err_alloc_stats: kfree(mlxsw_sp_port->untagged_vlans); err_port_untagged_vlans_alloc: kfree(mlxsw_sp_port->active_vlans); err_port_active_vlans_alloc: free_netdev(dev); return err; } static int mlxsw_sp_port_create(struct mlxsw_sp *mlxsw_sp, u8 local_port, bool split, u8 module, u8 width, u8 lane) { int err; err = mlxsw_core_port_init(mlxsw_sp->core, local_port); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n", local_port); return err; } err = __mlxsw_sp_port_create(mlxsw_sp, local_port, split, module, width, lane); if (err) goto err_port_create; return 0; err_port_create: mlxsw_core_port_fini(mlxsw_sp->core, local_port); return err; } static void __mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port) { struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; cancel_delayed_work_sync(&mlxsw_sp_port->hw_stats.update_dw); mlxsw_core_port_clear(mlxsw_sp->core, local_port, mlxsw_sp); unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */ mlxsw_sp->ports[local_port] = NULL; mlxsw_sp_port_switchdev_fini(mlxsw_sp_port); mlxsw_sp_port_pvid_vport_destroy(mlxsw_sp_port); mlxsw_sp_port_dcb_fini(mlxsw_sp_port); mlxsw_sp_port_swid_set(mlxsw_sp_port, MLXSW_PORT_SWID_DISABLED_PORT); mlxsw_sp_port_module_unmap(mlxsw_sp, mlxsw_sp_port->local_port); kfree(mlxsw_sp_port->hw_stats.cache); kfree(mlxsw_sp_port->sample); free_percpu(mlxsw_sp_port->pcpu_stats); kfree(mlxsw_sp_port->untagged_vlans); kfree(mlxsw_sp_port->active_vlans); WARN_ON_ONCE(!list_empty(&mlxsw_sp_port->vports_list)); free_netdev(mlxsw_sp_port->dev); } static void mlxsw_sp_port_remove(struct mlxsw_sp *mlxsw_sp, u8 local_port) { __mlxsw_sp_port_remove(mlxsw_sp, local_port); mlxsw_core_port_fini(mlxsw_sp->core, local_port); } static bool mlxsw_sp_port_created(struct mlxsw_sp *mlxsw_sp, u8 local_port) { return mlxsw_sp->ports[local_port] != NULL; } static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp) { int i; for (i = 1; i < mlxsw_core_max_ports(mlxsw_sp->core); i++) if (mlxsw_sp_port_created(mlxsw_sp, i)) mlxsw_sp_port_remove(mlxsw_sp, i); kfree(mlxsw_sp->port_to_module); kfree(mlxsw_sp->ports); } static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp) { unsigned int max_ports = mlxsw_core_max_ports(mlxsw_sp->core); u8 module, width, lane; size_t alloc_size; int i; int err; alloc_size = sizeof(struct mlxsw_sp_port *) * max_ports; mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL); if (!mlxsw_sp->ports) return -ENOMEM; mlxsw_sp->port_to_module = kcalloc(max_ports, sizeof(u8), GFP_KERNEL); if (!mlxsw_sp->port_to_module) { err = -ENOMEM; goto err_port_to_module_alloc; } for (i = 1; i < max_ports; i++) { err = mlxsw_sp_port_module_info_get(mlxsw_sp, i, &module, &width, &lane); if (err) goto err_port_module_info_get; if (!width) continue; mlxsw_sp->port_to_module[i] = module; err = mlxsw_sp_port_create(mlxsw_sp, i, false, module, width, lane); if (err) goto err_port_create; } return 0; err_port_create: err_port_module_info_get: for (i--; i >= 1; i--) if (mlxsw_sp_port_created(mlxsw_sp, i)) mlxsw_sp_port_remove(mlxsw_sp, i); kfree(mlxsw_sp->port_to_module); err_port_to_module_alloc: kfree(mlxsw_sp->ports); return err; } static u8 mlxsw_sp_cluster_base_port_get(u8 local_port) { u8 offset = (local_port - 1) % MLXSW_SP_PORTS_PER_CLUSTER_MAX; return local_port - offset; } static int mlxsw_sp_port_split_create(struct mlxsw_sp *mlxsw_sp, u8 base_port, u8 module, unsigned int count) { u8 width = MLXSW_PORT_MODULE_MAX_WIDTH / count; int err, i; for (i = 0; i < count; i++) { err = mlxsw_sp_port_module_map(mlxsw_sp, base_port + i, module, width, i * width); if (err) goto err_port_module_map; } for (i = 0; i < count; i++) { err = __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i, 0); if (err) goto err_port_swid_set; } for (i = 0; i < count; i++) { err = mlxsw_sp_port_create(mlxsw_sp, base_port + i, true, module, width, i * width); if (err) goto err_port_create; } return 0; err_port_create: for (i--; i >= 0; i--) if (mlxsw_sp_port_created(mlxsw_sp, base_port + i)) mlxsw_sp_port_remove(mlxsw_sp, base_port + i); i = count; err_port_swid_set: for (i--; i >= 0; i--) __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i, MLXSW_PORT_SWID_DISABLED_PORT); i = count; err_port_module_map: for (i--; i >= 0; i--) mlxsw_sp_port_module_unmap(mlxsw_sp, base_port + i); return err; } static void mlxsw_sp_port_unsplit_create(struct mlxsw_sp *mlxsw_sp, u8 base_port, unsigned int count) { u8 local_port, module, width = MLXSW_PORT_MODULE_MAX_WIDTH; int i; /* Split by four means we need to re-create two ports, otherwise * only one. */ count = count / 2; for (i = 0; i < count; i++) { local_port = base_port + i * 2; module = mlxsw_sp->port_to_module[local_port]; mlxsw_sp_port_module_map(mlxsw_sp, local_port, module, width, 0); } for (i = 0; i < count; i++) __mlxsw_sp_port_swid_set(mlxsw_sp, base_port + i * 2, 0); for (i = 0; i < count; i++) { local_port = base_port + i * 2; module = mlxsw_sp->port_to_module[local_port]; mlxsw_sp_port_create(mlxsw_sp, local_port, false, module, width, 0); } } static int mlxsw_sp_port_split(struct mlxsw_core *mlxsw_core, u8 local_port, unsigned int count) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); struct mlxsw_sp_port *mlxsw_sp_port; u8 module, cur_width, base_port; int i; int err; mlxsw_sp_port = mlxsw_sp->ports[local_port]; if (!mlxsw_sp_port) { dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n", local_port); return -EINVAL; } module = mlxsw_sp_port->mapping.module; cur_width = mlxsw_sp_port->mapping.width; if (count != 2 && count != 4) { netdev_err(mlxsw_sp_port->dev, "Port can only be split into 2 or 4 ports\n"); return -EINVAL; } if (cur_width != MLXSW_PORT_MODULE_MAX_WIDTH) { netdev_err(mlxsw_sp_port->dev, "Port cannot be split further\n"); return -EINVAL; } /* Make sure we have enough slave (even) ports for the split. */ if (count == 2) { base_port = local_port; if (mlxsw_sp->ports[base_port + 1]) { netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n"); return -EINVAL; } } else { base_port = mlxsw_sp_cluster_base_port_get(local_port); if (mlxsw_sp->ports[base_port + 1] || mlxsw_sp->ports[base_port + 3]) { netdev_err(mlxsw_sp_port->dev, "Invalid split configuration\n"); return -EINVAL; } } for (i = 0; i < count; i++) if (mlxsw_sp_port_created(mlxsw_sp, base_port + i)) mlxsw_sp_port_remove(mlxsw_sp, base_port + i); err = mlxsw_sp_port_split_create(mlxsw_sp, base_port, module, count); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to create split ports\n"); goto err_port_split_create; } return 0; err_port_split_create: mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count); return err; } static int mlxsw_sp_port_unsplit(struct mlxsw_core *mlxsw_core, u8 local_port) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); struct mlxsw_sp_port *mlxsw_sp_port; u8 cur_width, base_port; unsigned int count; int i; mlxsw_sp_port = mlxsw_sp->ports[local_port]; if (!mlxsw_sp_port) { dev_err(mlxsw_sp->bus_info->dev, "Port number \"%d\" does not exist\n", local_port); return -EINVAL; } if (!mlxsw_sp_port->split) { netdev_err(mlxsw_sp_port->dev, "Port wasn't split\n"); return -EINVAL; } cur_width = mlxsw_sp_port->mapping.width; count = cur_width == 1 ? 4 : 2; base_port = mlxsw_sp_cluster_base_port_get(local_port); /* Determine which ports to remove. */ if (count == 2 && local_port >= base_port + 2) base_port = base_port + 2; for (i = 0; i < count; i++) if (mlxsw_sp_port_created(mlxsw_sp, base_port + i)) mlxsw_sp_port_remove(mlxsw_sp, base_port + i); mlxsw_sp_port_unsplit_create(mlxsw_sp, base_port, count); return 0; } static void mlxsw_sp_pude_event_func(const struct mlxsw_reg_info *reg, char *pude_pl, void *priv) { struct mlxsw_sp *mlxsw_sp = priv; struct mlxsw_sp_port *mlxsw_sp_port; enum mlxsw_reg_pude_oper_status status; u8 local_port; local_port = mlxsw_reg_pude_local_port_get(pude_pl); mlxsw_sp_port = mlxsw_sp->ports[local_port]; if (!mlxsw_sp_port) return; status = mlxsw_reg_pude_oper_status_get(pude_pl); if (status == MLXSW_PORT_OPER_STATUS_UP) { netdev_info(mlxsw_sp_port->dev, "link up\n"); netif_carrier_on(mlxsw_sp_port->dev); } else { netdev_info(mlxsw_sp_port->dev, "link down\n"); netif_carrier_off(mlxsw_sp_port->dev); } } static void mlxsw_sp_rx_listener_no_mark_func(struct sk_buff *skb, u8 local_port, void *priv) { struct mlxsw_sp *mlxsw_sp = priv; struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; struct mlxsw_sp_port_pcpu_stats *pcpu_stats; if (unlikely(!mlxsw_sp_port)) { dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: skb received for non-existent port\n", local_port); return; } skb->dev = mlxsw_sp_port->dev; pcpu_stats = this_cpu_ptr(mlxsw_sp_port->pcpu_stats); u64_stats_update_begin(&pcpu_stats->syncp); pcpu_stats->rx_packets++; pcpu_stats->rx_bytes += skb->len; u64_stats_update_end(&pcpu_stats->syncp); skb->protocol = eth_type_trans(skb, skb->dev); netif_receive_skb(skb); } static void mlxsw_sp_rx_listener_mark_func(struct sk_buff *skb, u8 local_port, void *priv) { skb->offload_fwd_mark = 1; return mlxsw_sp_rx_listener_no_mark_func(skb, local_port, priv); } static void mlxsw_sp_rx_listener_sample_func(struct sk_buff *skb, u8 local_port, void *priv) { struct mlxsw_sp *mlxsw_sp = priv; struct mlxsw_sp_port *mlxsw_sp_port = mlxsw_sp->ports[local_port]; struct psample_group *psample_group; u32 size; if (unlikely(!mlxsw_sp_port)) { dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: sample skb received for non-existent port\n", local_port); goto out; } if (unlikely(!mlxsw_sp_port->sample)) { dev_warn_ratelimited(mlxsw_sp->bus_info->dev, "Port %d: sample skb received on unsupported port\n", local_port); goto out; } size = mlxsw_sp_port->sample->truncate ? mlxsw_sp_port->sample->trunc_size : skb->len; rcu_read_lock(); psample_group = rcu_dereference(mlxsw_sp_port->sample->psample_group); if (!psample_group) goto out_unlock; psample_sample_packet(psample_group, skb, size, mlxsw_sp_port->dev->ifindex, 0, mlxsw_sp_port->sample->rate); out_unlock: rcu_read_unlock(); out: consume_skb(skb); } #define MLXSW_SP_RXL_NO_MARK(_trap_id, _action, _trap_group, _is_ctrl) \ MLXSW_RXL(mlxsw_sp_rx_listener_no_mark_func, _trap_id, _action, \ _is_ctrl, SP_##_trap_group, DISCARD) #define MLXSW_SP_RXL_MARK(_trap_id, _action, _trap_group, _is_ctrl) \ MLXSW_RXL(mlxsw_sp_rx_listener_mark_func, _trap_id, _action, \ _is_ctrl, SP_##_trap_group, DISCARD) #define MLXSW_SP_EVENTL(_func, _trap_id) \ MLXSW_EVENTL(_func, _trap_id, SP_EVENT) static const struct mlxsw_listener mlxsw_sp_listener[] = { /* Events */ MLXSW_SP_EVENTL(mlxsw_sp_pude_event_func, PUDE), /* L2 traps */ MLXSW_SP_RXL_NO_MARK(STP, TRAP_TO_CPU, STP, true), MLXSW_SP_RXL_NO_MARK(LACP, TRAP_TO_CPU, LACP, true), MLXSW_SP_RXL_NO_MARK(LLDP, TRAP_TO_CPU, LLDP, true), MLXSW_SP_RXL_MARK(DHCP, MIRROR_TO_CPU, DHCP, false), MLXSW_SP_RXL_MARK(IGMP_QUERY, MIRROR_TO_CPU, IGMP, false), MLXSW_SP_RXL_NO_MARK(IGMP_V1_REPORT, TRAP_TO_CPU, IGMP, false), MLXSW_SP_RXL_NO_MARK(IGMP_V2_REPORT, TRAP_TO_CPU, IGMP, false), MLXSW_SP_RXL_NO_MARK(IGMP_V2_LEAVE, TRAP_TO_CPU, IGMP, false), MLXSW_SP_RXL_NO_MARK(IGMP_V3_REPORT, TRAP_TO_CPU, IGMP, false), MLXSW_SP_RXL_MARK(ARPBC, MIRROR_TO_CPU, ARP, false), MLXSW_SP_RXL_MARK(ARPUC, MIRROR_TO_CPU, ARP, false), /* L3 traps */ MLXSW_SP_RXL_NO_MARK(MTUERROR, TRAP_TO_CPU, ROUTER_EXP, false), MLXSW_SP_RXL_NO_MARK(TTLERROR, TRAP_TO_CPU, ROUTER_EXP, false), MLXSW_SP_RXL_NO_MARK(LBERROR, TRAP_TO_CPU, ROUTER_EXP, false), MLXSW_SP_RXL_MARK(OSPF, TRAP_TO_CPU, OSPF, false), MLXSW_SP_RXL_NO_MARK(IP2ME, TRAP_TO_CPU, IP2ME, false), MLXSW_SP_RXL_NO_MARK(RTR_INGRESS0, TRAP_TO_CPU, REMOTE_ROUTE, false), MLXSW_SP_RXL_NO_MARK(HOST_MISS_IPV4, TRAP_TO_CPU, ARP_MISS, false), MLXSW_SP_RXL_NO_MARK(BGP_IPV4, TRAP_TO_CPU, BGP_IPV4, false), /* PKT Sample trap */ MLXSW_RXL(mlxsw_sp_rx_listener_sample_func, PKT_SAMPLE, MIRROR_TO_CPU, false, SP_IP2ME, DISCARD) }; static int mlxsw_sp_cpu_policers_set(struct mlxsw_core *mlxsw_core) { char qpcr_pl[MLXSW_REG_QPCR_LEN]; enum mlxsw_reg_qpcr_ir_units ir_units; int max_cpu_policers; bool is_bytes; u8 burst_size; u32 rate; int i, err; if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_CPU_POLICERS)) return -EIO; max_cpu_policers = MLXSW_CORE_RES_GET(mlxsw_core, MAX_CPU_POLICERS); ir_units = MLXSW_REG_QPCR_IR_UNITS_M; for (i = 0; i < max_cpu_policers; i++) { is_bytes = false; switch (i) { case MLXSW_REG_HTGT_TRAP_GROUP_SP_STP: case MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP: case MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP: case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF: rate = 128; burst_size = 7; break; case MLXSW_REG_HTGT_TRAP_GROUP_SP_IGMP: rate = 16 * 1024; burst_size = 10; break; case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP_IPV4: case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP: case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP: case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP_MISS: case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP: case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE: rate = 1024; burst_size = 7; break; case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME: is_bytes = true; rate = 4 * 1024; burst_size = 4; break; default: continue; } mlxsw_reg_qpcr_pack(qpcr_pl, i, ir_units, is_bytes, rate, burst_size); err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(qpcr), qpcr_pl); if (err) return err; } return 0; } static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core) { char htgt_pl[MLXSW_REG_HTGT_LEN]; enum mlxsw_reg_htgt_trap_group i; int max_cpu_policers; int max_trap_groups; u8 priority, tc; u16 policer_id; int err; if (!MLXSW_CORE_RES_VALID(mlxsw_core, MAX_TRAP_GROUPS)) return -EIO; max_trap_groups = MLXSW_CORE_RES_GET(mlxsw_core, MAX_TRAP_GROUPS); max_cpu_policers = MLXSW_CORE_RES_GET(mlxsw_core, MAX_CPU_POLICERS); for (i = 0; i < max_trap_groups; i++) { policer_id = i; switch (i) { case MLXSW_REG_HTGT_TRAP_GROUP_SP_STP: case MLXSW_REG_HTGT_TRAP_GROUP_SP_LACP: case MLXSW_REG_HTGT_TRAP_GROUP_SP_LLDP: case MLXSW_REG_HTGT_TRAP_GROUP_SP_OSPF: priority = 5; tc = 5; break; case MLXSW_REG_HTGT_TRAP_GROUP_SP_BGP_IPV4: case MLXSW_REG_HTGT_TRAP_GROUP_SP_DHCP: priority = 4; tc = 4; break; case MLXSW_REG_HTGT_TRAP_GROUP_SP_IGMP: case MLXSW_REG_HTGT_TRAP_GROUP_SP_IP2ME: priority = 3; tc = 3; break; case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP: priority = 2; tc = 2; break; case MLXSW_REG_HTGT_TRAP_GROUP_SP_ARP_MISS: case MLXSW_REG_HTGT_TRAP_GROUP_SP_ROUTER_EXP: case MLXSW_REG_HTGT_TRAP_GROUP_SP_REMOTE_ROUTE: priority = 1; tc = 1; break; case MLXSW_REG_HTGT_TRAP_GROUP_SP_EVENT: priority = MLXSW_REG_HTGT_DEFAULT_PRIORITY; tc = MLXSW_REG_HTGT_DEFAULT_TC; policer_id = MLXSW_REG_HTGT_INVALID_POLICER; break; default: continue; } if (max_cpu_policers <= policer_id && policer_id != MLXSW_REG_HTGT_INVALID_POLICER) return -EIO; mlxsw_reg_htgt_pack(htgt_pl, i, policer_id, priority, tc); err = mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl); if (err) return err; } return 0; } static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp) { int i; int err; err = mlxsw_sp_cpu_policers_set(mlxsw_sp->core); if (err) return err; err = mlxsw_sp_trap_groups_set(mlxsw_sp->core); if (err) return err; for (i = 0; i < ARRAY_SIZE(mlxsw_sp_listener); i++) { err = mlxsw_core_trap_register(mlxsw_sp->core, &mlxsw_sp_listener[i], mlxsw_sp); if (err) goto err_listener_register; } return 0; err_listener_register: for (i--; i >= 0; i--) { mlxsw_core_trap_unregister(mlxsw_sp->core, &mlxsw_sp_listener[i], mlxsw_sp); } return err; } static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp) { int i; for (i = 0; i < ARRAY_SIZE(mlxsw_sp_listener); i++) { mlxsw_core_trap_unregister(mlxsw_sp->core, &mlxsw_sp_listener[i], mlxsw_sp); } } static int __mlxsw_sp_flood_init(struct mlxsw_core *mlxsw_core, enum mlxsw_reg_sfgc_type type, enum mlxsw_reg_sfgc_bridge_type bridge_type) { enum mlxsw_flood_table_type table_type; enum mlxsw_sp_flood_table flood_table; char sfgc_pl[MLXSW_REG_SFGC_LEN]; if (bridge_type == MLXSW_REG_SFGC_BRIDGE_TYPE_VFID) table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID; else table_type = MLXSW_REG_SFGC_TABLE_TYPE_FID_OFFEST; switch (type) { case MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST: flood_table = MLXSW_SP_FLOOD_TABLE_UC; break; case MLXSW_REG_SFGC_TYPE_UNREGISTERED_MULTICAST_IPV4: flood_table = MLXSW_SP_FLOOD_TABLE_MC; break; default: flood_table = MLXSW_SP_FLOOD_TABLE_BC; } mlxsw_reg_sfgc_pack(sfgc_pl, type, bridge_type, table_type, flood_table); return mlxsw_reg_write(mlxsw_core, MLXSW_REG(sfgc), sfgc_pl); } static int mlxsw_sp_flood_init(struct mlxsw_sp *mlxsw_sp) { int type, err; for (type = 0; type < MLXSW_REG_SFGC_TYPE_MAX; type++) { if (type == MLXSW_REG_SFGC_TYPE_RESERVED) continue; err = __mlxsw_sp_flood_init(mlxsw_sp->core, type, MLXSW_REG_SFGC_BRIDGE_TYPE_VFID); if (err) return err; err = __mlxsw_sp_flood_init(mlxsw_sp->core, type, MLXSW_REG_SFGC_BRIDGE_TYPE_1Q_FID); if (err) return err; } return 0; } static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp) { char slcr_pl[MLXSW_REG_SLCR_LEN]; int err; mlxsw_reg_slcr_pack(slcr_pl, MLXSW_REG_SLCR_LAG_HASH_SMAC | MLXSW_REG_SLCR_LAG_HASH_DMAC | MLXSW_REG_SLCR_LAG_HASH_ETHERTYPE | MLXSW_REG_SLCR_LAG_HASH_VLANID | MLXSW_REG_SLCR_LAG_HASH_SIP | MLXSW_REG_SLCR_LAG_HASH_DIP | MLXSW_REG_SLCR_LAG_HASH_SPORT | MLXSW_REG_SLCR_LAG_HASH_DPORT | MLXSW_REG_SLCR_LAG_HASH_IPPROTO); err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl); if (err) return err; if (!MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG) || !MLXSW_CORE_RES_VALID(mlxsw_sp->core, MAX_LAG_MEMBERS)) return -EIO; mlxsw_sp->lags = kcalloc(MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG), sizeof(struct mlxsw_sp_upper), GFP_KERNEL); if (!mlxsw_sp->lags) return -ENOMEM; return 0; } static void mlxsw_sp_lag_fini(struct mlxsw_sp *mlxsw_sp) { kfree(mlxsw_sp->lags); } static int mlxsw_sp_basic_trap_groups_set(struct mlxsw_core *mlxsw_core) { char htgt_pl[MLXSW_REG_HTGT_LEN]; mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_EMAD, MLXSW_REG_HTGT_INVALID_POLICER, MLXSW_REG_HTGT_DEFAULT_PRIORITY, MLXSW_REG_HTGT_DEFAULT_TC); return mlxsw_reg_write(mlxsw_core, MLXSW_REG(htgt), htgt_pl); } static int mlxsw_sp_vfid_op(struct mlxsw_sp *mlxsw_sp, u16 fid, bool create); static int mlxsw_sp_dummy_fid_init(struct mlxsw_sp *mlxsw_sp) { return mlxsw_sp_vfid_op(mlxsw_sp, MLXSW_SP_DUMMY_FID, true); } static void mlxsw_sp_dummy_fid_fini(struct mlxsw_sp *mlxsw_sp) { mlxsw_sp_vfid_op(mlxsw_sp, MLXSW_SP_DUMMY_FID, false); } static int mlxsw_sp_init(struct mlxsw_core *mlxsw_core, const struct mlxsw_bus_info *mlxsw_bus_info) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); int err; mlxsw_sp->core = mlxsw_core; mlxsw_sp->bus_info = mlxsw_bus_info; INIT_LIST_HEAD(&mlxsw_sp->fids); INIT_LIST_HEAD(&mlxsw_sp->vfids.list); INIT_LIST_HEAD(&mlxsw_sp->br_mids.list); err = mlxsw_sp_base_mac_get(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to get base mac\n"); return err; } err = mlxsw_sp_traps_init(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps\n"); return err; } err = mlxsw_sp_flood_init(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize flood tables\n"); goto err_flood_init; } err = mlxsw_sp_buffers_init(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize buffers\n"); goto err_buffers_init; } err = mlxsw_sp_lag_init(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize LAG\n"); goto err_lag_init; } err = mlxsw_sp_switchdev_init(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize switchdev\n"); goto err_switchdev_init; } err = mlxsw_sp_router_init(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize router\n"); goto err_router_init; } err = mlxsw_sp_span_init(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to init span system\n"); goto err_span_init; } err = mlxsw_sp_acl_init(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to initialize ACL\n"); goto err_acl_init; } err = mlxsw_sp_counter_pool_init(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to init counter pool\n"); goto err_counter_pool_init; } err = mlxsw_sp_dpipe_init(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to init pipeline debug\n"); goto err_dpipe_init; } err = mlxsw_sp_dummy_fid_init(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to init dummy FID\n"); goto err_dummy_fid_init; } err = mlxsw_sp_ports_create(mlxsw_sp); if (err) { dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n"); goto err_ports_create; } return 0; err_ports_create: mlxsw_sp_dummy_fid_fini(mlxsw_sp); err_dummy_fid_init: mlxsw_sp_dpipe_fini(mlxsw_sp); err_dpipe_init: mlxsw_sp_counter_pool_fini(mlxsw_sp); err_counter_pool_init: mlxsw_sp_acl_fini(mlxsw_sp); err_acl_init: mlxsw_sp_span_fini(mlxsw_sp); err_span_init: mlxsw_sp_router_fini(mlxsw_sp); err_router_init: mlxsw_sp_switchdev_fini(mlxsw_sp); err_switchdev_init: mlxsw_sp_lag_fini(mlxsw_sp); err_lag_init: mlxsw_sp_buffers_fini(mlxsw_sp); err_buffers_init: err_flood_init: mlxsw_sp_traps_fini(mlxsw_sp); return err; } static void mlxsw_sp_fini(struct mlxsw_core *mlxsw_core) { struct mlxsw_sp *mlxsw_sp = mlxsw_core_driver_priv(mlxsw_core); mlxsw_sp_ports_remove(mlxsw_sp); mlxsw_sp_dummy_fid_fini(mlxsw_sp); mlxsw_sp_dpipe_fini(mlxsw_sp); mlxsw_sp_counter_pool_fini(mlxsw_sp); mlxsw_sp_acl_fini(mlxsw_sp); mlxsw_sp_span_fini(mlxsw_sp); mlxsw_sp_router_fini(mlxsw_sp); mlxsw_sp_switchdev_fini(mlxsw_sp); mlxsw_sp_lag_fini(mlxsw_sp); mlxsw_sp_buffers_fini(mlxsw_sp); mlxsw_sp_traps_fini(mlxsw_sp); WARN_ON(!list_empty(&mlxsw_sp->vfids.list)); WARN_ON(!list_empty(&mlxsw_sp->fids)); } static struct mlxsw_config_profile mlxsw_sp_config_profile = { .used_max_vepa_channels = 1, .max_vepa_channels = 0, .used_max_mid = 1, .max_mid = MLXSW_SP_MID_MAX, .used_max_pgt = 1, .max_pgt = 0, .used_flood_tables = 1, .used_flood_mode = 1, .flood_mode = 3, .max_fid_offset_flood_tables = 3, .fid_offset_flood_table_size = VLAN_N_VID - 1, .max_fid_flood_tables = 3, .fid_flood_table_size = MLXSW_SP_VFID_MAX, .used_max_ib_mc = 1, .max_ib_mc = 0, .used_max_pkey = 1, .max_pkey = 0, .used_kvd_split_data = 1, .kvd_hash_granularity = MLXSW_SP_KVD_GRANULARITY, .kvd_hash_single_parts = 2, .kvd_hash_double_parts = 1, .kvd_linear_size = MLXSW_SP_KVD_LINEAR_SIZE, .swid_config = { { .used_type = 1, .type = MLXSW_PORT_SWID_TYPE_ETH, } }, .resource_query_enable = 1, }; static struct mlxsw_driver mlxsw_sp_driver = { .kind = mlxsw_sp_driver_name, .priv_size = sizeof(struct mlxsw_sp), .init = mlxsw_sp_init, .fini = mlxsw_sp_fini, .basic_trap_groups_set = mlxsw_sp_basic_trap_groups_set, .port_split = mlxsw_sp_port_split, .port_unsplit = mlxsw_sp_port_unsplit, .sb_pool_get = mlxsw_sp_sb_pool_get, .sb_pool_set = mlxsw_sp_sb_pool_set, .sb_port_pool_get = mlxsw_sp_sb_port_pool_get, .sb_port_pool_set = mlxsw_sp_sb_port_pool_set, .sb_tc_pool_bind_get = mlxsw_sp_sb_tc_pool_bind_get, .sb_tc_pool_bind_set = mlxsw_sp_sb_tc_pool_bind_set, .sb_occ_snapshot = mlxsw_sp_sb_occ_snapshot, .sb_occ_max_clear = mlxsw_sp_sb_occ_max_clear, .sb_occ_port_pool_get = mlxsw_sp_sb_occ_port_pool_get, .sb_occ_tc_port_bind_get = mlxsw_sp_sb_occ_tc_port_bind_get, .txhdr_construct = mlxsw_sp_txhdr_construct, .txhdr_len = MLXSW_TXHDR_LEN, .profile = &mlxsw_sp_config_profile, }; bool mlxsw_sp_port_dev_check(const struct net_device *dev) { return dev->netdev_ops == &mlxsw_sp_port_netdev_ops; } static int mlxsw_sp_lower_dev_walk(struct net_device *lower_dev, void *data) { struct mlxsw_sp_port **p_mlxsw_sp_port = data; int ret = 0; if (mlxsw_sp_port_dev_check(lower_dev)) { *p_mlxsw_sp_port = netdev_priv(lower_dev); ret = 1; } return ret; } static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find(struct net_device *dev) { struct mlxsw_sp_port *mlxsw_sp_port; if (mlxsw_sp_port_dev_check(dev)) return netdev_priv(dev); mlxsw_sp_port = NULL; netdev_walk_all_lower_dev(dev, mlxsw_sp_lower_dev_walk, &mlxsw_sp_port); return mlxsw_sp_port; } struct mlxsw_sp *mlxsw_sp_lower_get(struct net_device *dev) { struct mlxsw_sp_port *mlxsw_sp_port; mlxsw_sp_port = mlxsw_sp_port_dev_lower_find(dev); return mlxsw_sp_port ? mlxsw_sp_port->mlxsw_sp : NULL; } static struct mlxsw_sp_port *mlxsw_sp_port_dev_lower_find_rcu(struct net_device *dev) { struct mlxsw_sp_port *mlxsw_sp_port; if (mlxsw_sp_port_dev_check(dev)) return netdev_priv(dev); mlxsw_sp_port = NULL; netdev_walk_all_lower_dev_rcu(dev, mlxsw_sp_lower_dev_walk, &mlxsw_sp_port); return mlxsw_sp_port; } struct mlxsw_sp_port *mlxsw_sp_port_lower_dev_hold(struct net_device *dev) { struct mlxsw_sp_port *mlxsw_sp_port; rcu_read_lock(); mlxsw_sp_port = mlxsw_sp_port_dev_lower_find_rcu(dev); if (mlxsw_sp_port) dev_hold(mlxsw_sp_port->dev); rcu_read_unlock(); return mlxsw_sp_port; } void mlxsw_sp_port_dev_put(struct mlxsw_sp_port *mlxsw_sp_port) { dev_put(mlxsw_sp_port->dev); } static bool mlxsw_sp_lag_port_fid_member(struct mlxsw_sp_port *lag_port, u16 fid) { if (mlxsw_sp_fid_is_vfid(fid)) return mlxsw_sp_port_vport_find_by_fid(lag_port, fid); else return test_bit(fid, lag_port->active_vlans); } static bool mlxsw_sp_port_fdb_should_flush(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; u8 local_port = mlxsw_sp_port->local_port; u16 lag_id = mlxsw_sp_port->lag_id; u64 max_lag_members; int i, count = 0; if (!mlxsw_sp_port->lagged) return true; max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG_MEMBERS); for (i = 0; i < max_lag_members; i++) { struct mlxsw_sp_port *lag_port; lag_port = mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i); if (!lag_port || lag_port->local_port == local_port) continue; if (mlxsw_sp_lag_port_fid_member(lag_port, fid)) count++; } return !count; } static int mlxsw_sp_port_fdb_flush_by_port_fid(const struct mlxsw_sp_port *mlxsw_sp_port, u16 fid) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char sfdf_pl[MLXSW_REG_SFDF_LEN]; mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_PORT_AND_FID); mlxsw_reg_sfdf_fid_set(sfdf_pl, fid); mlxsw_reg_sfdf_port_fid_system_port_set(sfdf_pl, mlxsw_sp_port->local_port); netdev_dbg(mlxsw_sp_port->dev, "FDB flushed using Port=%d, FID=%d\n", mlxsw_sp_port->local_port, fid); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); } static int mlxsw_sp_port_fdb_flush_by_lag_id_fid(const struct mlxsw_sp_port *mlxsw_sp_port, u16 fid) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char sfdf_pl[MLXSW_REG_SFDF_LEN]; mlxsw_reg_sfdf_pack(sfdf_pl, MLXSW_REG_SFDF_FLUSH_PER_LAG_AND_FID); mlxsw_reg_sfdf_fid_set(sfdf_pl, fid); mlxsw_reg_sfdf_lag_fid_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id); netdev_dbg(mlxsw_sp_port->dev, "FDB flushed using LAG ID=%d, FID=%d\n", mlxsw_sp_port->lag_id, fid); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); } int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_port, u16 fid) { if (!mlxsw_sp_port_fdb_should_flush(mlxsw_sp_port, fid)) return 0; if (mlxsw_sp_port->lagged) return mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_port, fid); else return mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_port, fid); } static void mlxsw_sp_master_bridge_gone_sync(struct mlxsw_sp *mlxsw_sp) { struct mlxsw_sp_fid *f, *tmp; list_for_each_entry_safe(f, tmp, &mlxsw_sp->fids, list) if (--f->ref_count == 0) mlxsw_sp_fid_destroy(mlxsw_sp, f); else WARN_ON_ONCE(1); } static bool mlxsw_sp_master_bridge_check(struct mlxsw_sp *mlxsw_sp, struct net_device *br_dev) { return !mlxsw_sp->master_bridge.dev || mlxsw_sp->master_bridge.dev == br_dev; } static void mlxsw_sp_master_bridge_inc(struct mlxsw_sp *mlxsw_sp, struct net_device *br_dev) { mlxsw_sp->master_bridge.dev = br_dev; mlxsw_sp->master_bridge.ref_count++; } static void mlxsw_sp_master_bridge_dec(struct mlxsw_sp *mlxsw_sp) { if (--mlxsw_sp->master_bridge.ref_count == 0) { mlxsw_sp->master_bridge.dev = NULL; /* It's possible upper VLAN devices are still holding * references to underlying FIDs. Drop the reference * and release the resources if it was the last one. * If it wasn't, then something bad happened. */ mlxsw_sp_master_bridge_gone_sync(mlxsw_sp); } } static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *br_dev) { struct net_device *dev = mlxsw_sp_port->dev; int err; /* When port is not bridged untagged packets are tagged with * PVID=VID=1, thereby creating an implicit VLAN interface in * the device. Remove it and let bridge code take care of its * own VLANs. */ err = mlxsw_sp_port_kill_vid(dev, 0, 1); if (err) return err; mlxsw_sp_master_bridge_inc(mlxsw_sp_port->mlxsw_sp, br_dev); mlxsw_sp_port->learning = 1; mlxsw_sp_port->learning_sync = 1; mlxsw_sp_port->uc_flood = 1; mlxsw_sp_port->mc_flood = 1; mlxsw_sp_port->mc_router = 0; mlxsw_sp_port->mc_disabled = 1; mlxsw_sp_port->bridged = 1; return 0; } static void mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port) { struct net_device *dev = mlxsw_sp_port->dev; mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1); mlxsw_sp_master_bridge_dec(mlxsw_sp_port->mlxsw_sp); mlxsw_sp_port->learning = 0; mlxsw_sp_port->learning_sync = 0; mlxsw_sp_port->uc_flood = 0; mlxsw_sp_port->mc_flood = 0; mlxsw_sp_port->mc_router = 0; mlxsw_sp_port->bridged = 0; /* Add implicit VLAN interface in the device, so that untagged * packets will be classified to the default vFID. */ mlxsw_sp_port_add_vid(dev, 0, 1); } static int mlxsw_sp_lag_create(struct mlxsw_sp *mlxsw_sp, u16 lag_id) { char sldr_pl[MLXSW_REG_SLDR_LEN]; mlxsw_reg_sldr_lag_create_pack(sldr_pl, lag_id); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); } static int mlxsw_sp_lag_destroy(struct mlxsw_sp *mlxsw_sp, u16 lag_id) { char sldr_pl[MLXSW_REG_SLDR_LEN]; mlxsw_reg_sldr_lag_destroy_pack(sldr_pl, lag_id); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); } static int mlxsw_sp_lag_col_port_add(struct mlxsw_sp_port *mlxsw_sp_port, u16 lag_id, u8 port_index) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char slcor_pl[MLXSW_REG_SLCOR_LEN]; mlxsw_reg_slcor_port_add_pack(slcor_pl, mlxsw_sp_port->local_port, lag_id, port_index); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); } static int mlxsw_sp_lag_col_port_remove(struct mlxsw_sp_port *mlxsw_sp_port, u16 lag_id) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char slcor_pl[MLXSW_REG_SLCOR_LEN]; mlxsw_reg_slcor_port_remove_pack(slcor_pl, mlxsw_sp_port->local_port, lag_id); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); } static int mlxsw_sp_lag_col_port_enable(struct mlxsw_sp_port *mlxsw_sp_port, u16 lag_id) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char slcor_pl[MLXSW_REG_SLCOR_LEN]; mlxsw_reg_slcor_col_enable_pack(slcor_pl, mlxsw_sp_port->local_port, lag_id); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); } static int mlxsw_sp_lag_col_port_disable(struct mlxsw_sp_port *mlxsw_sp_port, u16 lag_id) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char slcor_pl[MLXSW_REG_SLCOR_LEN]; mlxsw_reg_slcor_col_disable_pack(slcor_pl, mlxsw_sp_port->local_port, lag_id); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcor), slcor_pl); } static int mlxsw_sp_lag_index_get(struct mlxsw_sp *mlxsw_sp, struct net_device *lag_dev, u16 *p_lag_id) { struct mlxsw_sp_upper *lag; int free_lag_id = -1; u64 max_lag; int i; max_lag = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG); for (i = 0; i < max_lag; i++) { lag = mlxsw_sp_lag_get(mlxsw_sp, i); if (lag->ref_count) { if (lag->dev == lag_dev) { *p_lag_id = i; return 0; } } else if (free_lag_id < 0) { free_lag_id = i; } } if (free_lag_id < 0) return -EBUSY; *p_lag_id = free_lag_id; return 0; } static bool mlxsw_sp_master_lag_check(struct mlxsw_sp *mlxsw_sp, struct net_device *lag_dev, struct netdev_lag_upper_info *lag_upper_info) { u16 lag_id; if (mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id) != 0) return false; if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) return false; return true; } static int mlxsw_sp_port_lag_index_get(struct mlxsw_sp *mlxsw_sp, u16 lag_id, u8 *p_port_index) { u64 max_lag_members; int i; max_lag_members = MLXSW_CORE_RES_GET(mlxsw_sp->core, MAX_LAG_MEMBERS); for (i = 0; i < max_lag_members; i++) { if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) { *p_port_index = i; return 0; } } return -EBUSY; } static void mlxsw_sp_port_pvid_vport_lag_join(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *lag_dev, u16 lag_id) { struct mlxsw_sp_port *mlxsw_sp_vport; struct mlxsw_sp_fid *f; mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1); if (WARN_ON(!mlxsw_sp_vport)) return; /* If vPort is assigned a RIF, then leave it since it's no * longer valid. */ f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport); if (f) f->leave(mlxsw_sp_vport); mlxsw_sp_vport->lag_id = lag_id; mlxsw_sp_vport->lagged = 1; mlxsw_sp_vport->dev = lag_dev; } static void mlxsw_sp_port_pvid_vport_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port) { struct mlxsw_sp_port *mlxsw_sp_vport; struct mlxsw_sp_fid *f; mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, 1); if (WARN_ON(!mlxsw_sp_vport)) return; f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport); if (f) f->leave(mlxsw_sp_vport); mlxsw_sp_vport->dev = mlxsw_sp_port->dev; mlxsw_sp_vport->lagged = 0; } static int mlxsw_sp_port_lag_join(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *lag_dev) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; struct mlxsw_sp_upper *lag; u16 lag_id; u8 port_index; int err; err = mlxsw_sp_lag_index_get(mlxsw_sp, lag_dev, &lag_id); if (err) return err; lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); if (!lag->ref_count) { err = mlxsw_sp_lag_create(mlxsw_sp, lag_id); if (err) return err; lag->dev = lag_dev; } err = mlxsw_sp_port_lag_index_get(mlxsw_sp, lag_id, &port_index); if (err) return err; err = mlxsw_sp_lag_col_port_add(mlxsw_sp_port, lag_id, port_index); if (err) goto err_col_port_add; err = mlxsw_sp_lag_col_port_enable(mlxsw_sp_port, lag_id); if (err) goto err_col_port_enable; mlxsw_core_lag_mapping_set(mlxsw_sp->core, lag_id, port_index, mlxsw_sp_port->local_port); mlxsw_sp_port->lag_id = lag_id; mlxsw_sp_port->lagged = 1; lag->ref_count++; mlxsw_sp_port_pvid_vport_lag_join(mlxsw_sp_port, lag_dev, lag_id); return 0; err_col_port_enable: mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id); err_col_port_add: if (!lag->ref_count) mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); return err; } static void mlxsw_sp_port_lag_leave(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *lag_dev) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; u16 lag_id = mlxsw_sp_port->lag_id; struct mlxsw_sp_upper *lag; if (!mlxsw_sp_port->lagged) return; lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); WARN_ON(lag->ref_count == 0); mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, lag_id); mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id); if (mlxsw_sp_port->bridged) { mlxsw_sp_port_active_vlans_del(mlxsw_sp_port); mlxsw_sp_port_bridge_leave(mlxsw_sp_port); } if (lag->ref_count == 1) mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id, mlxsw_sp_port->local_port); mlxsw_sp_port->lagged = 0; lag->ref_count--; mlxsw_sp_port_pvid_vport_lag_leave(mlxsw_sp_port); } static int mlxsw_sp_lag_dist_port_add(struct mlxsw_sp_port *mlxsw_sp_port, u16 lag_id) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char sldr_pl[MLXSW_REG_SLDR_LEN]; mlxsw_reg_sldr_lag_add_port_pack(sldr_pl, lag_id, mlxsw_sp_port->local_port); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); } static int mlxsw_sp_lag_dist_port_remove(struct mlxsw_sp_port *mlxsw_sp_port, u16 lag_id) { struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; char sldr_pl[MLXSW_REG_SLDR_LEN]; mlxsw_reg_sldr_lag_remove_port_pack(sldr_pl, lag_id, mlxsw_sp_port->local_port); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sldr), sldr_pl); } static int mlxsw_sp_port_lag_tx_en_set(struct mlxsw_sp_port *mlxsw_sp_port, bool lag_tx_enabled) { if (lag_tx_enabled) return mlxsw_sp_lag_dist_port_add(mlxsw_sp_port, mlxsw_sp_port->lag_id); else return mlxsw_sp_lag_dist_port_remove(mlxsw_sp_port, mlxsw_sp_port->lag_id); } static int mlxsw_sp_port_lag_changed(struct mlxsw_sp_port *mlxsw_sp_port, struct netdev_lag_lower_state_info *info) { return mlxsw_sp_port_lag_tx_en_set(mlxsw_sp_port, info->tx_enabled); } static int mlxsw_sp_port_vlan_link(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *vlan_dev) { struct mlxsw_sp_port *mlxsw_sp_vport; u16 vid = vlan_dev_vlan_id(vlan_dev); mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); if (WARN_ON(!mlxsw_sp_vport)) return -EINVAL; mlxsw_sp_vport->dev = vlan_dev; return 0; } static void mlxsw_sp_port_vlan_unlink(struct mlxsw_sp_port *mlxsw_sp_port, struct net_device *vlan_dev) { struct mlxsw_sp_port *mlxsw_sp_vport; u16 vid = vlan_dev_vlan_id(vlan_dev); mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); if (WARN_ON(!mlxsw_sp_vport)) return; mlxsw_sp_vport->dev = mlxsw_sp_port->dev; } static int mlxsw_sp_netdevice_port_upper_event(struct net_device *dev, unsigned long event, void *ptr) { struct netdev_notifier_changeupper_info *info; struct mlxsw_sp_port *mlxsw_sp_port; struct net_device *upper_dev; struct mlxsw_sp *mlxsw_sp; int err = 0; mlxsw_sp_port = netdev_priv(dev); mlxsw_sp = mlxsw_sp_port->mlxsw_sp; info = ptr; switch (event) { case NETDEV_PRECHANGEUPPER: upper_dev = info->upper_dev; if (!is_vlan_dev(upper_dev) && !netif_is_lag_master(upper_dev) && !netif_is_bridge_master(upper_dev) && !netif_is_l3_master(upper_dev)) return -EINVAL; if (!info->linking) break; /* HW limitation forbids to put ports to multiple bridges. */ if (netif_is_bridge_master(upper_dev) && !mlxsw_sp_master_bridge_check(mlxsw_sp, upper_dev)) return -EINVAL; if (netif_is_lag_master(upper_dev) && !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev, info->upper_info)) return -EINVAL; if (netif_is_lag_master(upper_dev) && vlan_uses_dev(dev)) return -EINVAL; if (netif_is_lag_port(dev) && is_vlan_dev(upper_dev) && !netif_is_lag_master(vlan_dev_real_dev(upper_dev))) return -EINVAL; break; case NETDEV_CHANGEUPPER: upper_dev = info->upper_dev; if (is_vlan_dev(upper_dev)) { if (info->linking) err = mlxsw_sp_port_vlan_link(mlxsw_sp_port, upper_dev); else mlxsw_sp_port_vlan_unlink(mlxsw_sp_port, upper_dev); } else if (netif_is_bridge_master(upper_dev)) { if (info->linking) err = mlxsw_sp_port_bridge_join(mlxsw_sp_port, upper_dev); else mlxsw_sp_port_bridge_leave(mlxsw_sp_port); } else if (netif_is_lag_master(upper_dev)) { if (info->linking) err = mlxsw_sp_port_lag_join(mlxsw_sp_port, upper_dev); else mlxsw_sp_port_lag_leave(mlxsw_sp_port, upper_dev); } else if (netif_is_l3_master(upper_dev)) { if (info->linking) err = mlxsw_sp_port_vrf_join(mlxsw_sp_port); else mlxsw_sp_port_vrf_leave(mlxsw_sp_port); } else { err = -EINVAL; WARN_ON(1); } break; } return err; } static int mlxsw_sp_netdevice_port_lower_event(struct net_device *dev, unsigned long event, void *ptr) { struct netdev_notifier_changelowerstate_info *info; struct mlxsw_sp_port *mlxsw_sp_port; int err; mlxsw_sp_port = netdev_priv(dev); info = ptr; switch (event) { case NETDEV_CHANGELOWERSTATE: if (netif_is_lag_port(dev) && mlxsw_sp_port->lagged) { err = mlxsw_sp_port_lag_changed(mlxsw_sp_port, info->lower_state_info); if (err) netdev_err(dev, "Failed to reflect link aggregation lower state change\n"); } break; } return 0; } static int mlxsw_sp_netdevice_port_event(struct net_device *dev, unsigned long event, void *ptr) { switch (event) { case NETDEV_PRECHANGEUPPER: case NETDEV_CHANGEUPPER: return mlxsw_sp_netdevice_port_upper_event(dev, event, ptr); case NETDEV_CHANGELOWERSTATE: return mlxsw_sp_netdevice_port_lower_event(dev, event, ptr); } return 0; } static int mlxsw_sp_netdevice_lag_event(struct net_device *lag_dev, unsigned long event, void *ptr) { struct net_device *dev; struct list_head *iter; int ret; netdev_for_each_lower_dev(lag_dev, dev, iter) { if (mlxsw_sp_port_dev_check(dev)) { ret = mlxsw_sp_netdevice_port_event(dev, event, ptr); if (ret) return ret; } } return 0; } static int mlxsw_sp_master_bridge_vlan_link(struct mlxsw_sp *mlxsw_sp, struct net_device *vlan_dev) { u16 fid = vlan_dev_vlan_id(vlan_dev); struct mlxsw_sp_fid *f; f = mlxsw_sp_fid_find(mlxsw_sp, fid); if (!f) { f = mlxsw_sp_fid_create(mlxsw_sp, fid); if (IS_ERR(f)) return PTR_ERR(f); } f->ref_count++; return 0; } static void mlxsw_sp_master_bridge_vlan_unlink(struct mlxsw_sp *mlxsw_sp, struct net_device *vlan_dev) { u16 fid = vlan_dev_vlan_id(vlan_dev); struct mlxsw_sp_fid *f; f = mlxsw_sp_fid_find(mlxsw_sp, fid); if (f && f->rif) mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->rif); if (f && --f->ref_count == 0) mlxsw_sp_fid_destroy(mlxsw_sp, f); } static int mlxsw_sp_netdevice_bridge_event(struct net_device *br_dev, unsigned long event, void *ptr) { struct netdev_notifier_changeupper_info *info; struct net_device *upper_dev; struct mlxsw_sp *mlxsw_sp; int err = 0; mlxsw_sp = mlxsw_sp_lower_get(br_dev); if (!mlxsw_sp) return 0; info = ptr; switch (event) { case NETDEV_PRECHANGEUPPER: upper_dev = info->upper_dev; if (!is_vlan_dev(upper_dev) && !netif_is_l3_master(upper_dev)) return -EINVAL; if (is_vlan_dev(upper_dev) && br_dev != mlxsw_sp->master_bridge.dev) return -EINVAL; break; case NETDEV_CHANGEUPPER: upper_dev = info->upper_dev; if (is_vlan_dev(upper_dev)) { if (info->linking) err = mlxsw_sp_master_bridge_vlan_link(mlxsw_sp, upper_dev); else mlxsw_sp_master_bridge_vlan_unlink(mlxsw_sp, upper_dev); } else if (netif_is_l3_master(upper_dev)) { if (info->linking) err = mlxsw_sp_bridge_vrf_join(mlxsw_sp, br_dev); else mlxsw_sp_bridge_vrf_leave(mlxsw_sp, br_dev); } else { err = -EINVAL; WARN_ON(1); } break; } return err; } static u16 mlxsw_sp_avail_vfid_get(const struct mlxsw_sp *mlxsw_sp) { return find_first_zero_bit(mlxsw_sp->vfids.mapped, MLXSW_SP_VFID_MAX); } static int mlxsw_sp_vfid_op(struct mlxsw_sp *mlxsw_sp, u16 fid, bool create) { char sfmr_pl[MLXSW_REG_SFMR_LEN]; mlxsw_reg_sfmr_pack(sfmr_pl, !create, fid, 0); return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl); } static void mlxsw_sp_vport_vfid_leave(struct mlxsw_sp_port *mlxsw_sp_vport); static struct mlxsw_sp_fid *mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp, struct net_device *br_dev) { struct device *dev = mlxsw_sp->bus_info->dev; struct mlxsw_sp_fid *f; u16 vfid, fid; int err; vfid = mlxsw_sp_avail_vfid_get(mlxsw_sp); if (vfid == MLXSW_SP_VFID_MAX) { dev_err(dev, "No available vFIDs\n"); return ERR_PTR(-ERANGE); } fid = mlxsw_sp_vfid_to_fid(vfid); err = mlxsw_sp_vfid_op(mlxsw_sp, fid, true); if (err) { dev_err(dev, "Failed to create FID=%d\n", fid); return ERR_PTR(err); } f = kzalloc(sizeof(*f), GFP_KERNEL); if (!f) goto err_allocate_vfid; f->leave = mlxsw_sp_vport_vfid_leave; f->fid = fid; f->dev = br_dev; list_add(&f->list, &mlxsw_sp->vfids.list); set_bit(vfid, mlxsw_sp->vfids.mapped); return f; err_allocate_vfid: mlxsw_sp_vfid_op(mlxsw_sp, fid, false); return ERR_PTR(-ENOMEM); } static void mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp, struct mlxsw_sp_fid *f) { u16 vfid = mlxsw_sp_fid_to_vfid(f->fid); u16 fid = f->fid; clear_bit(vfid, mlxsw_sp->vfids.mapped); list_del(&f->list); if (f->rif) mlxsw_sp_rif_bridge_destroy(mlxsw_sp, f->rif); kfree(f); mlxsw_sp_vfid_op(mlxsw_sp, fid, false); } static int mlxsw_sp_vport_fid_map(struct mlxsw_sp_port *mlxsw_sp_vport, u16 fid, bool valid) { enum mlxsw_reg_svfa_mt mt = MLXSW_REG_SVFA_MT_PORT_VID_TO_FID; u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); return mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, mt, valid, fid, vid); } static int mlxsw_sp_vport_vfid_join(struct mlxsw_sp_port *mlxsw_sp_vport, struct net_device *br_dev) { struct mlxsw_sp_fid *f; int err; f = mlxsw_sp_vfid_find(mlxsw_sp_vport->mlxsw_sp, br_dev); if (!f) { f = mlxsw_sp_vfid_create(mlxsw_sp_vport->mlxsw_sp, br_dev); if (IS_ERR(f)) return PTR_ERR(f); } err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, true); if (err) goto err_vport_flood_set; err = mlxsw_sp_vport_fid_map(mlxsw_sp_vport, f->fid, true); if (err) goto err_vport_fid_map; mlxsw_sp_vport_fid_set(mlxsw_sp_vport, f); f->ref_count++; netdev_dbg(mlxsw_sp_vport->dev, "Joined FID=%d\n", f->fid); return 0; err_vport_fid_map: mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, false); err_vport_flood_set: if (!f->ref_count) mlxsw_sp_vfid_destroy(mlxsw_sp_vport->mlxsw_sp, f); return err; } static void mlxsw_sp_vport_vfid_leave(struct mlxsw_sp_port *mlxsw_sp_vport) { struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport); netdev_dbg(mlxsw_sp_vport->dev, "Left FID=%d\n", f->fid); mlxsw_sp_vport_fid_map(mlxsw_sp_vport, f->fid, false); mlxsw_sp_vport_flood_set(mlxsw_sp_vport, f->fid, false); mlxsw_sp_port_fdb_flush(mlxsw_sp_vport, f->fid); mlxsw_sp_vport_fid_set(mlxsw_sp_vport, NULL); if (--f->ref_count == 0) mlxsw_sp_vfid_destroy(mlxsw_sp_vport->mlxsw_sp, f); } static int mlxsw_sp_vport_bridge_join(struct mlxsw_sp_port *mlxsw_sp_vport, struct net_device *br_dev) { struct mlxsw_sp_fid *f = mlxsw_sp_vport_fid_get(mlxsw_sp_vport); u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); struct net_device *dev = mlxsw_sp_vport->dev; int err; if (f && !WARN_ON(!f->leave)) f->leave(mlxsw_sp_vport); err = mlxsw_sp_vport_vfid_join(mlxsw_sp_vport, br_dev); if (err) { netdev_err(dev, "Failed to join vFID\n"); return err; } err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true); if (err) { netdev_err(dev, "Failed to enable learning\n"); goto err_port_vid_learning_set; } mlxsw_sp_vport->learning = 1; mlxsw_sp_vport->learning_sync = 1; mlxsw_sp_vport->uc_flood = 1; mlxsw_sp_vport->mc_flood = 1; mlxsw_sp_vport->mc_router = 0; mlxsw_sp_vport->mc_disabled = 1; mlxsw_sp_vport->bridged = 1; return 0; err_port_vid_learning_set: mlxsw_sp_vport_vfid_leave(mlxsw_sp_vport); return err; } static void mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport) { u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false); mlxsw_sp_vport_vfid_leave(mlxsw_sp_vport); mlxsw_sp_vport->learning = 0; mlxsw_sp_vport->learning_sync = 0; mlxsw_sp_vport->uc_flood = 0; mlxsw_sp_vport->mc_flood = 0; mlxsw_sp_vport->mc_router = 0; mlxsw_sp_vport->bridged = 0; } static bool mlxsw_sp_port_master_bridge_check(const struct mlxsw_sp_port *mlxsw_sp_port, const struct net_device *br_dev) { struct mlxsw_sp_port *mlxsw_sp_vport; list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list, vport.list) { struct net_device *dev = mlxsw_sp_vport_dev_get(mlxsw_sp_vport); if (dev && dev == br_dev) return false; } return true; } static int mlxsw_sp_netdevice_vport_event(struct net_device *dev, unsigned long event, void *ptr, u16 vid) { struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); struct netdev_notifier_changeupper_info *info = ptr; struct mlxsw_sp_port *mlxsw_sp_vport; struct net_device *upper_dev; int err = 0; mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); if (!mlxsw_sp_vport) return 0; switch (event) { case NETDEV_PRECHANGEUPPER: upper_dev = info->upper_dev; if (!netif_is_bridge_master(upper_dev) && !netif_is_l3_master(upper_dev)) return -EINVAL; if (!info->linking) break; /* We can't have multiple VLAN interfaces configured on * the same port and being members in the same bridge. */ if (netif_is_bridge_master(upper_dev) && !mlxsw_sp_port_master_bridge_check(mlxsw_sp_port, upper_dev)) return -EINVAL; break; case NETDEV_CHANGEUPPER: upper_dev = info->upper_dev; if (netif_is_bridge_master(upper_dev)) { if (info->linking) err = mlxsw_sp_vport_bridge_join(mlxsw_sp_vport, upper_dev); else mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport); } else if (netif_is_l3_master(upper_dev)) { if (info->linking) err = mlxsw_sp_vport_vrf_join(mlxsw_sp_vport); else mlxsw_sp_vport_vrf_leave(mlxsw_sp_vport); } else { err = -EINVAL; WARN_ON(1); } break; } return err; } static int mlxsw_sp_netdevice_lag_vport_event(struct net_device *lag_dev, unsigned long event, void *ptr, u16 vid) { struct net_device *dev; struct list_head *iter; int ret; netdev_for_each_lower_dev(lag_dev, dev, iter) { if (mlxsw_sp_port_dev_check(dev)) { ret = mlxsw_sp_netdevice_vport_event(dev, event, ptr, vid); if (ret) return ret; } } return 0; } static int mlxsw_sp_netdevice_bridge_vlan_event(struct net_device *vlan_dev, unsigned long event, void *ptr) { struct netdev_notifier_changeupper_info *info; struct mlxsw_sp *mlxsw_sp; int err = 0; mlxsw_sp = mlxsw_sp_lower_get(vlan_dev); if (!mlxsw_sp) return 0; info = ptr; switch (event) { case NETDEV_PRECHANGEUPPER: /* VLAN devices are only allowed on top of the * VLAN-aware bridge. */ if (WARN_ON(vlan_dev_real_dev(vlan_dev) != mlxsw_sp->master_bridge.dev)) return -EINVAL; if (!netif_is_l3_master(info->upper_dev)) return -EINVAL; break; case NETDEV_CHANGEUPPER: if (netif_is_l3_master(info->upper_dev)) { if (info->linking) err = mlxsw_sp_bridge_vrf_join(mlxsw_sp, vlan_dev); else mlxsw_sp_bridge_vrf_leave(mlxsw_sp, vlan_dev); } else { err = -EINVAL; WARN_ON(1); } break; } return err; } static int mlxsw_sp_netdevice_vlan_event(struct net_device *vlan_dev, unsigned long event, void *ptr) { struct net_device *real_dev = vlan_dev_real_dev(vlan_dev); u16 vid = vlan_dev_vlan_id(vlan_dev); if (mlxsw_sp_port_dev_check(real_dev)) return mlxsw_sp_netdevice_vport_event(real_dev, event, ptr, vid); else if (netif_is_lag_master(real_dev)) return mlxsw_sp_netdevice_lag_vport_event(real_dev, event, ptr, vid); else if (netif_is_bridge_master(real_dev)) return mlxsw_sp_netdevice_bridge_vlan_event(vlan_dev, event, ptr); return 0; } static int mlxsw_sp_netdevice_event(struct notifier_block *unused, unsigned long event, void *ptr) { struct net_device *dev = netdev_notifier_info_to_dev(ptr); int err = 0; if (event == NETDEV_CHANGEADDR || event == NETDEV_CHANGEMTU) err = mlxsw_sp_netdevice_router_port_event(dev); else if (mlxsw_sp_port_dev_check(dev)) err = mlxsw_sp_netdevice_port_event(dev, event, ptr); else if (netif_is_lag_master(dev)) err = mlxsw_sp_netdevice_lag_event(dev, event, ptr); else if (netif_is_bridge_master(dev)) err = mlxsw_sp_netdevice_bridge_event(dev, event, ptr); else if (is_vlan_dev(dev)) err = mlxsw_sp_netdevice_vlan_event(dev, event, ptr); return notifier_from_errno(err); } static struct notifier_block mlxsw_sp_netdevice_nb __read_mostly = { .notifier_call = mlxsw_sp_netdevice_event, }; static struct notifier_block mlxsw_sp_inetaddr_nb __read_mostly = { .notifier_call = mlxsw_sp_inetaddr_event, .priority = 10, /* Must be called before FIB notifier block */ }; static struct notifier_block mlxsw_sp_router_netevent_nb __read_mostly = { .notifier_call = mlxsw_sp_router_netevent_event, }; static const struct pci_device_id mlxsw_sp_pci_id_table[] = { {PCI_VDEVICE(MELLANOX, PCI_DEVICE_ID_MELLANOX_SPECTRUM), 0}, {0, }, }; static struct pci_driver mlxsw_sp_pci_driver = { .name = mlxsw_sp_driver_name, .id_table = mlxsw_sp_pci_id_table, }; static int __init mlxsw_sp_module_init(void) { int err; register_netdevice_notifier(&mlxsw_sp_netdevice_nb); register_inetaddr_notifier(&mlxsw_sp_inetaddr_nb); register_netevent_notifier(&mlxsw_sp_router_netevent_nb); err = mlxsw_core_driver_register(&mlxsw_sp_driver); if (err) goto err_core_driver_register; err = mlxsw_pci_driver_register(&mlxsw_sp_pci_driver); if (err) goto err_pci_driver_register; return 0; err_pci_driver_register: mlxsw_core_driver_unregister(&mlxsw_sp_driver); err_core_driver_register: unregister_netevent_notifier(&mlxsw_sp_router_netevent_nb); unregister_inetaddr_notifier(&mlxsw_sp_inetaddr_nb); unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb); return err; } static void __exit mlxsw_sp_module_exit(void) { mlxsw_pci_driver_unregister(&mlxsw_sp_pci_driver); mlxsw_core_driver_unregister(&mlxsw_sp_driver); unregister_netevent_notifier(&mlxsw_sp_router_netevent_nb); unregister_inetaddr_notifier(&mlxsw_sp_inetaddr_nb); unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb); } module_init(mlxsw_sp_module_init); module_exit(mlxsw_sp_module_exit); MODULE_LICENSE("Dual BSD/GPL"); MODULE_AUTHOR("Jiri Pirko "); MODULE_DESCRIPTION("Mellanox Spectrum driver"); MODULE_DEVICE_TABLE(pci, mlxsw_sp_pci_id_table);