| /* |
| * drivers/net/ethernet/mellanox/mlxsw/spectrum.c |
| * Copyright (c) 2015 Mellanox Technologies. All rights reserved. |
| * Copyright (c) 2015 Jiri Pirko <jiri@mellanox.com> |
| * Copyright (c) 2015 Ido Schimmel <idosch@mellanox.com> |
| * Copyright (c) 2015 Elad Raz <eladr@mellanox.com> |
| * |
| * 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 <linux/kernel.h> |
| #include <linux/module.h> |
| #include <linux/types.h> |
| #include <linux/netdevice.h> |
| #include <linux/etherdevice.h> |
| #include <linux/ethtool.h> |
| #include <linux/slab.h> |
| #include <linux/device.h> |
| #include <linux/skbuff.h> |
| #include <linux/if_vlan.h> |
| #include <linux/if_bridge.h> |
| #include <linux/workqueue.h> |
| #include <linux/jiffies.h> |
| #include <linux/bitops.h> |
| #include <linux/list.h> |
| #include <linux/dcbnl.h> |
| #include <net/switchdev.h> |
| #include <generated/utsrelease.h> |
| |
| #include "spectrum.h" |
| #include "core.h" |
| #include "reg.h" |
| #include "port.h" |
| #include "trap.h" |
| #include "txheader.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); |
| |
| 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]; |
| 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_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_oper_status_get(struct mlxsw_sp_port *mlxsw_sp_port, |
| bool *p_is_up) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char paos_pl[MLXSW_REG_PAOS_LEN]; |
| u8 oper_status; |
| int err; |
| |
| mlxsw_reg_paos_pack(paos_pl, mlxsw_sp_port->local_port, 0); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(paos), paos_pl); |
| if (err) |
| return err; |
| oper_status = mlxsw_reg_paos_oper_status_get(paos_pl); |
| *p_is_up = oper_status == MLXSW_PORT_ADMIN_STATUS_UP ? true : false; |
| return 0; |
| } |
| |
| 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_stp_state_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| u16 vid, enum mlxsw_reg_spms_state state) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char *spms_pl; |
| int err; |
| |
| spms_pl = kmalloc(MLXSW_REG_SPMS_LEN, GFP_KERNEL); |
| if (!spms_pl) |
| return -ENOMEM; |
| mlxsw_reg_spms_pack(spms_pl, mlxsw_sp_port->local_port); |
| mlxsw_reg_spms_vid_pack(spms_pl, vid, state); |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spms), spms_pl); |
| kfree(spms_pl); |
| return err; |
| } |
| |
| 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); |
| } |
| |
| static int mlxsw_sp_port_vid_learning_set(struct mlxsw_sp_port *mlxsw_sp_port, |
| u16 vid, 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, vid, |
| learn_enable); |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(spvmlr), spvmlr_pl); |
| kfree(spvmlr_pl); |
| return err; |
| } |
| |
| 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; |
| } |
| } |
| |
| 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 void mlxsw_sp_pg_buf_pack(char *pbmc_pl, int pg_index, int mtu, |
| bool pause_en, bool pfc_en, u16 delay) |
| { |
| u16 pg_size = 2 * MLXSW_SP_BYTES_TO_CELLS(mtu); |
| |
| delay = pfc_en ? mlxsw_sp_pfc_delay_get(mtu, delay) : |
| MLXSW_SP_PAUSE_DELAY; |
| |
| if (pause_en || pfc_en) |
| mlxsw_reg_pbmc_lossless_buffer_pack(pbmc_pl, pg_index, |
| pg_size + delay, pg_size); |
| else |
| mlxsw_reg_pbmc_lossy_buffer_pack(pbmc_pl, pg_index, pg_size); |
| } |
| |
| 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; |
| |
| 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; |
| mlxsw_sp_pg_buf_pack(pbmc_pl, i, mtu, pause_en, pfc, delay); |
| } |
| |
| 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_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_port_headroom_set(mlxsw_sp_port, dev->mtu, pause_en); |
| return err; |
| } |
| |
| static struct rtnl_link_stats64 * |
| mlxsw_sp_port_get_stats64(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 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_vfid * |
| mlxsw_sp_vfid_find(const struct mlxsw_sp *mlxsw_sp, u16 vid) |
| { |
| struct mlxsw_sp_vfid *vfid; |
| |
| list_for_each_entry(vfid, &mlxsw_sp->port_vfids.list, list) { |
| if (vfid->vid == vid) |
| return vfid; |
| } |
| |
| return NULL; |
| } |
| |
| static u16 mlxsw_sp_avail_vfid_get(const struct mlxsw_sp *mlxsw_sp) |
| { |
| return find_first_zero_bit(mlxsw_sp->port_vfids.mapped, |
| MLXSW_SP_VFID_PORT_MAX); |
| } |
| |
| static int __mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp, u16 vfid) |
| { |
| u16 fid = mlxsw_sp_vfid_to_fid(vfid); |
| char sfmr_pl[MLXSW_REG_SFMR_LEN]; |
| |
| mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_CREATE_FID, fid, 0); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl); |
| } |
| |
| static void __mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp, u16 vfid) |
| { |
| u16 fid = mlxsw_sp_vfid_to_fid(vfid); |
| char sfmr_pl[MLXSW_REG_SFMR_LEN]; |
| |
| mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_DESTROY_FID, fid, 0); |
| mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl); |
| } |
| |
| static struct mlxsw_sp_vfid *mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp, |
| u16 vid) |
| { |
| struct device *dev = mlxsw_sp->bus_info->dev; |
| struct mlxsw_sp_vfid *vfid; |
| u16 n_vfid; |
| int err; |
| |
| n_vfid = mlxsw_sp_avail_vfid_get(mlxsw_sp); |
| if (n_vfid == MLXSW_SP_VFID_PORT_MAX) { |
| dev_err(dev, "No available vFIDs\n"); |
| return ERR_PTR(-ERANGE); |
| } |
| |
| err = __mlxsw_sp_vfid_create(mlxsw_sp, n_vfid); |
| if (err) { |
| dev_err(dev, "Failed to create vFID=%d\n", n_vfid); |
| return ERR_PTR(err); |
| } |
| |
| vfid = kzalloc(sizeof(*vfid), GFP_KERNEL); |
| if (!vfid) |
| goto err_allocate_vfid; |
| |
| vfid->vfid = n_vfid; |
| vfid->vid = vid; |
| |
| list_add(&vfid->list, &mlxsw_sp->port_vfids.list); |
| set_bit(n_vfid, mlxsw_sp->port_vfids.mapped); |
| |
| return vfid; |
| |
| err_allocate_vfid: |
| __mlxsw_sp_vfid_destroy(mlxsw_sp, n_vfid); |
| return ERR_PTR(-ENOMEM); |
| } |
| |
| static void mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_vfid *vfid) |
| { |
| clear_bit(vfid->vfid, mlxsw_sp->port_vfids.mapped); |
| list_del(&vfid->list); |
| |
| __mlxsw_sp_vfid_destroy(mlxsw_sp, vfid->vfid); |
| |
| kfree(vfid); |
| } |
| |
| static struct mlxsw_sp_port * |
| mlxsw_sp_port_vport_create(struct mlxsw_sp_port *mlxsw_sp_port, |
| struct mlxsw_sp_vfid *vfid) |
| { |
| 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.vfid = vfid; |
| mlxsw_sp_vport->vport.vid = vfid->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); |
| } |
| |
| 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 *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| struct mlxsw_sp_port *mlxsw_sp_vport; |
| struct mlxsw_sp_vfid *vfid; |
| 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)) { |
| netdev_warn(dev, "VID=%d already configured\n", vid); |
| return 0; |
| } |
| |
| vfid = mlxsw_sp_vfid_find(mlxsw_sp, vid); |
| if (!vfid) { |
| vfid = mlxsw_sp_vfid_create(mlxsw_sp, vid); |
| if (IS_ERR(vfid)) { |
| netdev_err(dev, "Failed to create vFID for VID=%d\n", |
| vid); |
| return PTR_ERR(vfid); |
| } |
| } |
| |
| mlxsw_sp_vport = mlxsw_sp_port_vport_create(mlxsw_sp_port, vfid); |
| if (!mlxsw_sp_vport) { |
| netdev_err(dev, "Failed to create vPort for VID=%d\n", vid); |
| err = -ENOMEM; |
| goto err_port_vport_create; |
| } |
| |
| if (!vfid->nr_vports) { |
| err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, |
| true, false); |
| if (err) { |
| netdev_err(dev, "Failed to setup flooding for vFID=%d\n", |
| vfid->vfid); |
| goto err_vport_flood_set; |
| } |
| } |
| |
| /* 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) { |
| netdev_err(dev, "Failed to set to Virtual mode\n"); |
| goto err_port_vp_mode_trans; |
| } |
| } |
| |
| err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
| true, |
| mlxsw_sp_vfid_to_fid(vfid->vfid), |
| vid); |
| if (err) { |
| netdev_err(dev, "Failed to map {Port, VID=%d} to vFID=%d\n", |
| vid, vfid->vfid); |
| goto err_port_vid_to_fid_set; |
| } |
| |
| err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false); |
| if (err) { |
| netdev_err(dev, "Failed to disable learning for VID=%d\n", vid); |
| goto err_port_vid_learning_set; |
| } |
| |
| err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, true, false); |
| if (err) { |
| netdev_err(dev, "Failed to set VLAN membership for VID=%d\n", |
| vid); |
| goto err_port_add_vid; |
| } |
| |
| err = mlxsw_sp_port_stp_state_set(mlxsw_sp_vport, vid, |
| MLXSW_REG_SPMS_STATE_FORWARDING); |
| if (err) { |
| netdev_err(dev, "Failed to set STP state for VID=%d\n", vid); |
| goto err_port_stp_state_set; |
| } |
| |
| vfid->nr_vports++; |
| |
| return 0; |
| |
| err_port_stp_state_set: |
| mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false); |
| err_port_add_vid: |
| mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true); |
| err_port_vid_learning_set: |
| mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, false, |
| mlxsw_sp_vfid_to_fid(vfid->vfid), vid); |
| err_port_vid_to_fid_set: |
| if (list_is_singular(&mlxsw_sp_port->vports_list)) |
| mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port); |
| err_port_vp_mode_trans: |
| if (!vfid->nr_vports) |
| mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, false, |
| false); |
| err_vport_flood_set: |
| mlxsw_sp_port_vport_destroy(mlxsw_sp_vport); |
| err_port_vport_create: |
| if (!vfid->nr_vports) |
| mlxsw_sp_vfid_destroy(mlxsw_sp, vfid); |
| return err; |
| } |
| |
| 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_vfid *vfid; |
| int err; |
| |
| /* 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 (!mlxsw_sp_vport) { |
| netdev_warn(dev, "VID=%d does not exist\n", vid); |
| return 0; |
| } |
| |
| vfid = mlxsw_sp_vport->vport.vfid; |
| |
| err = mlxsw_sp_port_stp_state_set(mlxsw_sp_vport, vid, |
| MLXSW_REG_SPMS_STATE_DISCARDING); |
| if (err) { |
| netdev_err(dev, "Failed to set STP state for VID=%d\n", vid); |
| return err; |
| } |
| |
| err = mlxsw_sp_port_vlan_set(mlxsw_sp_vport, vid, vid, false, false); |
| if (err) { |
| netdev_err(dev, "Failed to set VLAN membership for VID=%d\n", |
| vid); |
| return err; |
| } |
| |
| err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, true); |
| if (err) { |
| netdev_err(dev, "Failed to enable learning for VID=%d\n", vid); |
| return err; |
| } |
| |
| err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
| false, |
| mlxsw_sp_vfid_to_fid(vfid->vfid), |
| vid); |
| if (err) { |
| netdev_err(dev, "Failed to invalidate {Port, VID=%d} to vFID=%d mapping\n", |
| vid, vfid->vfid); |
| return err; |
| } |
| |
| /* 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)) { |
| err = mlxsw_sp_port_vlan_mode_trans(mlxsw_sp_port); |
| if (err) { |
| netdev_err(dev, "Failed to set to VLAN mode\n"); |
| return err; |
| } |
| } |
| |
| vfid->nr_vports--; |
| mlxsw_sp_port_vport_destroy(mlxsw_sp_vport); |
| |
| /* Destroy the vFID if no vPorts are assigned to it anymore. */ |
| if (!vfid->nr_vports) |
| mlxsw_sp_vfid_destroy(mlxsw_sp_port->mlxsw_sp, vfid); |
| |
| 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 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_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_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)(char *payload); |
| }; |
| |
| static const 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 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; |
| } |
| 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 void mlxsw_sp_port_get_stats(struct net_device *dev, |
| struct ethtool_stats *stats, u64 *data) |
| { |
| struct mlxsw_sp_port *mlxsw_sp_port = netdev_priv(dev); |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp; |
| char ppcnt_pl[MLXSW_REG_PPCNT_LEN]; |
| int i; |
| int err; |
| |
| mlxsw_reg_ppcnt_pack(ppcnt_pl, mlxsw_sp_port->local_port, |
| MLXSW_REG_PPCNT_IEEE_8023_CNT, 0); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ppcnt), ppcnt_pl); |
| for (i = 0; i < MLXSW_SP_PORT_HW_STATS_LEN; i++) |
| data[i] = !err ? mlxsw_sp_port_hw_stats[i].getter(ppcnt_pl) : 0; |
| } |
| |
| static int mlxsw_sp_port_get_sset_count(struct net_device *dev, int sset) |
| { |
| switch (sset) { |
| case ETH_SS_STATS: |
| return MLXSW_SP_PORT_HW_STATS_LEN; |
| default: |
| return -EOPNOTSUPP; |
| } |
| } |
| |
| struct mlxsw_sp_port_link_mode { |
| u32 mask; |
| u32 supported; |
| u32 advertised; |
| u32 speed; |
| }; |
| |
| static const struct mlxsw_sp_port_link_mode mlxsw_sp_port_link_mode[] = { |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_T, |
| .supported = SUPPORTED_100baseT_Full, |
| .advertised = ADVERTISED_100baseT_Full, |
| .speed = 100, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_100BASE_TX, |
| .speed = 100, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_SGMII | |
| MLXSW_REG_PTYS_ETH_SPEED_1000BASE_KX, |
| .supported = SUPPORTED_1000baseKX_Full, |
| .advertised = ADVERTISED_1000baseKX_Full, |
| .speed = 1000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_T, |
| .supported = SUPPORTED_10000baseT_Full, |
| .advertised = ADVERTISED_10000baseT_Full, |
| .speed = 10000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_10GBASE_CX4 | |
| MLXSW_REG_PTYS_ETH_SPEED_10GBASE_KX4, |
| .supported = SUPPORTED_10000baseKX4_Full, |
| .advertised = ADVERTISED_10000baseKX4_Full, |
| .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, |
| .supported = SUPPORTED_10000baseKR_Full, |
| .advertised = ADVERTISED_10000baseKR_Full, |
| .speed = 10000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_20GBASE_KR2, |
| .supported = SUPPORTED_20000baseKR2_Full, |
| .advertised = ADVERTISED_20000baseKR2_Full, |
| .speed = 20000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_CR4, |
| .supported = SUPPORTED_40000baseCR4_Full, |
| .advertised = ADVERTISED_40000baseCR4_Full, |
| .speed = 40000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_KR4, |
| .supported = SUPPORTED_40000baseKR4_Full, |
| .advertised = ADVERTISED_40000baseKR4_Full, |
| .speed = 40000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_SR4, |
| .supported = SUPPORTED_40000baseSR4_Full, |
| .advertised = ADVERTISED_40000baseSR4_Full, |
| .speed = 40000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_40GBASE_LR4_ER4, |
| .supported = SUPPORTED_40000baseLR4_Full, |
| .advertised = ADVERTISED_40000baseLR4_Full, |
| .speed = 40000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_25GBASE_CR | |
| MLXSW_REG_PTYS_ETH_SPEED_25GBASE_KR | |
| MLXSW_REG_PTYS_ETH_SPEED_25GBASE_SR, |
| .speed = 25000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_50GBASE_CR2 | |
| MLXSW_REG_PTYS_ETH_SPEED_50GBASE_KR2, |
| .speed = 50000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_56GBASE_R4, |
| .supported = SUPPORTED_56000baseKR4_Full, |
| .advertised = ADVERTISED_56000baseKR4_Full, |
| .speed = 56000, |
| }, |
| { |
| .mask = MLXSW_REG_PTYS_ETH_SPEED_100GBASE_CR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_100GBASE_SR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_100GBASE_KR4 | |
| MLXSW_REG_PTYS_ETH_SPEED_100GBASE_LR4_ER4, |
| .speed = 100000, |
| }, |
| }; |
| |
| #define MLXSW_SP_PORT_LINK_MODE_LEN ARRAY_SIZE(mlxsw_sp_port_link_mode) |
| |
| static u32 mlxsw_sp_from_ptys_supported_port(u32 ptys_eth_proto) |
| { |
| 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)) |
| return 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)) |
| return SUPPORTED_Backplane; |
| return 0; |
| } |
| |
| static u32 mlxsw_sp_from_ptys_supported_link(u32 ptys_eth_proto) |
| { |
| u32 modes = 0; |
| int i; |
| |
| for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) |
| modes |= mlxsw_sp_port_link_mode[i].supported; |
| } |
| return modes; |
| } |
| |
| static u32 mlxsw_sp_from_ptys_advert_link(u32 ptys_eth_proto) |
| { |
| u32 modes = 0; |
| int i; |
| |
| for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| if (ptys_eth_proto & mlxsw_sp_port_link_mode[i].mask) |
| modes |= mlxsw_sp_port_link_mode[i].advertised; |
| } |
| return modes; |
| } |
| |
| static void mlxsw_sp_from_ptys_speed_duplex(bool carrier_ok, u32 ptys_eth_proto, |
| struct ethtool_cmd *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: |
| ethtool_cmd_speed_set(cmd, speed); |
| cmd->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 int mlxsw_sp_port_get_settings(struct net_device *dev, |
| struct ethtool_cmd *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; |
| u32 eth_proto_admin; |
| u32 eth_proto_oper; |
| int err; |
| |
| mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); |
| if (err) { |
| netdev_err(dev, "Failed to get proto"); |
| return err; |
| } |
| mlxsw_reg_ptys_unpack(ptys_pl, ð_proto_cap, |
| ð_proto_admin, ð_proto_oper); |
| |
| cmd->supported = mlxsw_sp_from_ptys_supported_port(eth_proto_cap) | |
| mlxsw_sp_from_ptys_supported_link(eth_proto_cap) | |
| SUPPORTED_Pause | SUPPORTED_Asym_Pause; |
| cmd->advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_admin); |
| mlxsw_sp_from_ptys_speed_duplex(netif_carrier_ok(dev), |
| eth_proto_oper, cmd); |
| |
| eth_proto_oper = eth_proto_oper ? eth_proto_oper : eth_proto_cap; |
| cmd->port = mlxsw_sp_port_connector_port(eth_proto_oper); |
| cmd->lp_advertising = mlxsw_sp_from_ptys_advert_link(eth_proto_oper); |
| |
| cmd->transceiver = XCVR_INTERNAL; |
| return 0; |
| } |
| |
| static u32 mlxsw_sp_to_ptys_advert_link(u32 advertising) |
| { |
| u32 ptys_proto = 0; |
| int i; |
| |
| for (i = 0; i < MLXSW_SP_PORT_LINK_MODE_LEN; i++) { |
| if (advertising & mlxsw_sp_port_link_mode[i].advertised) |
| 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 int mlxsw_sp_port_set_settings(struct net_device *dev, |
| struct ethtool_cmd *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 speed; |
| u32 eth_proto_new; |
| u32 eth_proto_cap; |
| u32 eth_proto_admin; |
| bool is_up; |
| int err; |
| |
| speed = ethtool_cmd_speed(cmd); |
| |
| eth_proto_new = cmd->autoneg == AUTONEG_ENABLE ? |
| mlxsw_sp_to_ptys_advert_link(cmd->advertising) : |
| mlxsw_sp_to_ptys_speed(speed); |
| |
| mlxsw_reg_ptys_pack(ptys_pl, mlxsw_sp_port->local_port, 0); |
| err = mlxsw_reg_query(mlxsw_sp->core, MLXSW_REG(ptys), ptys_pl); |
| if (err) { |
| netdev_err(dev, "Failed to get proto"); |
| return err; |
| } |
| mlxsw_reg_ptys_unpack(ptys_pl, ð_proto_cap, ð_proto_admin, NULL); |
| |
| eth_proto_new = eth_proto_new & eth_proto_cap; |
| if (!eth_proto_new) { |
| netdev_err(dev, "Not supported proto admin requested"); |
| return -EINVAL; |
| } |
| if (eth_proto_new == eth_proto_admin) |
| return 0; |
| |
| mlxsw_reg_ptys_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) { |
| netdev_err(dev, "Failed to set proto admin"); |
| return err; |
| } |
| |
| err = mlxsw_sp_port_oper_status_get(mlxsw_sp_port, &is_up); |
| if (err) { |
| netdev_err(dev, "Failed to get oper status"); |
| return err; |
| } |
| if (!is_up) |
| return 0; |
| |
| err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, false); |
| if (err) { |
| netdev_err(dev, "Failed to set admin status"); |
| return err; |
| } |
| |
| err = mlxsw_sp_port_admin_status_set(mlxsw_sp_port, true); |
| if (err) { |
| netdev_err(dev, "Failed to set admin status"); |
| return err; |
| } |
| |
| 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_settings = mlxsw_sp_port_get_settings, |
| .set_settings = mlxsw_sp_port_set_settings, |
| }; |
| |
| 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_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_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; |
| 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; |
| 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); |
| |
| 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; |
| } |
| |
| dev->netdev_ops = &mlxsw_sp_port_netdev_ops; |
| dev->ethtool_ops = &mlxsw_sp_port_ethtool_ops; |
| |
| 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; |
| |
| /* Each packet needs to have a Tx header (metadata) on top all other |
| * headers. |
| */ |
| dev->hard_header_len += 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_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_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; |
| } |
| |
| mlxsw_sp_port_switchdev_init(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; |
| } |
| |
| err = mlxsw_core_port_init(mlxsw_sp->core, &mlxsw_sp_port->core_port, |
| mlxsw_sp_port->local_port, dev, |
| mlxsw_sp_port->split, module); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Port %d: Failed to init core port\n", |
| mlxsw_sp_port->local_port); |
| goto err_core_port_init; |
| } |
| |
| err = mlxsw_sp_port_vlan_init(mlxsw_sp_port); |
| if (err) |
| goto err_port_vlan_init; |
| |
| mlxsw_sp->ports[local_port] = mlxsw_sp_port; |
| return 0; |
| |
| err_port_vlan_init: |
| mlxsw_core_port_fini(&mlxsw_sp_port->core_port); |
| err_core_port_init: |
| unregister_netdev(dev); |
| err_register_netdev: |
| 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_swid_set: |
| err_port_system_port_mapping_set: |
| err_dev_addr_init: |
| 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 void mlxsw_sp_port_vports_fini(struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| struct net_device *dev = mlxsw_sp_port->dev; |
| struct mlxsw_sp_port *mlxsw_sp_vport, *tmp; |
| |
| list_for_each_entry_safe(mlxsw_sp_vport, tmp, |
| &mlxsw_sp_port->vports_list, vport.list) { |
| u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); |
| |
| /* vPorts created for VLAN devices should already be gone |
| * by now, since we unregistered the port netdev. |
| */ |
| WARN_ON(is_vlan_dev(mlxsw_sp_vport->dev)); |
| mlxsw_sp_port_kill_vid(dev, 0, vid); |
| } |
| } |
| |
| 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]; |
| |
| if (!mlxsw_sp_port) |
| return; |
| mlxsw_sp->ports[local_port] = NULL; |
| mlxsw_core_port_fini(&mlxsw_sp_port->core_port); |
| unregister_netdev(mlxsw_sp_port->dev); /* This calls ndo_stop */ |
| mlxsw_sp_port_dcb_fini(mlxsw_sp_port); |
| mlxsw_sp_port_vports_fini(mlxsw_sp_port); |
| mlxsw_sp_port_switchdev_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); |
| free_percpu(mlxsw_sp_port->pcpu_stats); |
| kfree(mlxsw_sp_port->untagged_vlans); |
| kfree(mlxsw_sp_port->active_vlans); |
| free_netdev(mlxsw_sp_port->dev); |
| } |
| |
| static void mlxsw_sp_ports_remove(struct mlxsw_sp *mlxsw_sp) |
| { |
| int i; |
| |
| for (i = 1; i < MLXSW_PORT_MAX_PORTS; i++) |
| mlxsw_sp_port_remove(mlxsw_sp, i); |
| kfree(mlxsw_sp->ports); |
| } |
| |
| static int mlxsw_sp_ports_create(struct mlxsw_sp *mlxsw_sp) |
| { |
| u8 module, width, lane; |
| size_t alloc_size; |
| int i; |
| int err; |
| |
| alloc_size = sizeof(struct mlxsw_sp_port *) * MLXSW_PORT_MAX_PORTS; |
| mlxsw_sp->ports = kzalloc(alloc_size, GFP_KERNEL); |
| if (!mlxsw_sp->ports) |
| return -ENOMEM; |
| |
| for (i = 1; i < MLXSW_PORT_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--) |
| mlxsw_sp_port_remove(mlxsw_sp, i); |
| 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--) |
| 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++) |
| 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++) |
| 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) { |
| dev_warn(mlxsw_sp->bus_info->dev, "Port %d: Link event received for non-existent port\n", |
| local_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 struct mlxsw_event_listener mlxsw_sp_pude_event = { |
| .func = mlxsw_sp_pude_event_func, |
| .trap_id = MLXSW_TRAP_ID_PUDE, |
| }; |
| |
| static int mlxsw_sp_event_register(struct mlxsw_sp *mlxsw_sp, |
| enum mlxsw_event_trap_id trap_id) |
| { |
| struct mlxsw_event_listener *el; |
| char hpkt_pl[MLXSW_REG_HPKT_LEN]; |
| int err; |
| |
| switch (trap_id) { |
| case MLXSW_TRAP_ID_PUDE: |
| el = &mlxsw_sp_pude_event; |
| break; |
| } |
| err = mlxsw_core_event_listener_register(mlxsw_sp->core, el, mlxsw_sp); |
| if (err) |
| return err; |
| |
| mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, trap_id); |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl); |
| if (err) |
| goto err_event_trap_set; |
| |
| return 0; |
| |
| err_event_trap_set: |
| mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp); |
| return err; |
| } |
| |
| static void mlxsw_sp_event_unregister(struct mlxsw_sp *mlxsw_sp, |
| enum mlxsw_event_trap_id trap_id) |
| { |
| struct mlxsw_event_listener *el; |
| |
| switch (trap_id) { |
| case MLXSW_TRAP_ID_PUDE: |
| el = &mlxsw_sp_pude_event; |
| break; |
| } |
| mlxsw_core_event_listener_unregister(mlxsw_sp->core, el, mlxsw_sp); |
| } |
| |
| static void mlxsw_sp_rx_listener_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 const struct mlxsw_rx_listener mlxsw_sp_rx_listener[] = { |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_FDB_MC, |
| }, |
| /* Traps for specific L2 packet types, not trapped as FDB MC */ |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_STP, |
| }, |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_LACP, |
| }, |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_EAPOL, |
| }, |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_LLDP, |
| }, |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_MMRP, |
| }, |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_MVRP, |
| }, |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_RPVST, |
| }, |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_DHCP, |
| }, |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_IGMP_QUERY, |
| }, |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_IGMP_V1_REPORT, |
| }, |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_IGMP_V2_REPORT, |
| }, |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_IGMP_V2_LEAVE, |
| }, |
| { |
| .func = mlxsw_sp_rx_listener_func, |
| .local_port = MLXSW_PORT_DONT_CARE, |
| .trap_id = MLXSW_TRAP_ID_IGMP_V3_REPORT, |
| }, |
| }; |
| |
| static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp) |
| { |
| char htgt_pl[MLXSW_REG_HTGT_LEN]; |
| char hpkt_pl[MLXSW_REG_HPKT_LEN]; |
| int i; |
| int err; |
| |
| mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_RX); |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl); |
| if (err) |
| return err; |
| |
| mlxsw_reg_htgt_pack(htgt_pl, MLXSW_REG_HTGT_TRAP_GROUP_CTRL); |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(htgt), htgt_pl); |
| if (err) |
| return err; |
| |
| for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) { |
| err = mlxsw_core_rx_listener_register(mlxsw_sp->core, |
| &mlxsw_sp_rx_listener[i], |
| mlxsw_sp); |
| if (err) |
| goto err_rx_listener_register; |
| |
| mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_TRAP_TO_CPU, |
| mlxsw_sp_rx_listener[i].trap_id); |
| err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl); |
| if (err) |
| goto err_rx_trap_set; |
| } |
| return 0; |
| |
| err_rx_trap_set: |
| mlxsw_core_rx_listener_unregister(mlxsw_sp->core, |
| &mlxsw_sp_rx_listener[i], |
| mlxsw_sp); |
| err_rx_listener_register: |
| for (i--; i >= 0; i--) { |
| mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, |
| mlxsw_sp_rx_listener[i].trap_id); |
| mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl); |
| |
| mlxsw_core_rx_listener_unregister(mlxsw_sp->core, |
| &mlxsw_sp_rx_listener[i], |
| mlxsw_sp); |
| } |
| return err; |
| } |
| |
| static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp) |
| { |
| char hpkt_pl[MLXSW_REG_HPKT_LEN]; |
| int i; |
| |
| for (i = 0; i < ARRAY_SIZE(mlxsw_sp_rx_listener); i++) { |
| mlxsw_reg_hpkt_pack(hpkt_pl, MLXSW_REG_HPKT_ACTION_FORWARD, |
| mlxsw_sp_rx_listener[i].trap_id); |
| mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(hpkt), hpkt_pl); |
| |
| mlxsw_core_rx_listener_unregister(mlxsw_sp->core, |
| &mlxsw_sp_rx_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; |
| |
| if (type == MLXSW_REG_SFGC_TYPE_UNKNOWN_UNICAST) |
| flood_table = MLXSW_SP_FLOOD_TABLE_UC; |
| else |
| flood_table = MLXSW_SP_FLOOD_TABLE_BM; |
| |
| 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]; |
| |
| 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); |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(slcr), slcr_pl); |
| } |
| |
| 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->port_vfids.list); |
| INIT_LIST_HEAD(&mlxsw_sp->br_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_ports_create(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to create ports\n"); |
| return err; |
| } |
| |
| err = mlxsw_sp_event_register(mlxsw_sp, MLXSW_TRAP_ID_PUDE); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to register for PUDE events\n"); |
| goto err_event_register; |
| } |
| |
| err = mlxsw_sp_traps_init(mlxsw_sp); |
| if (err) { |
| dev_err(mlxsw_sp->bus_info->dev, "Failed to set traps for RX\n"); |
| goto err_rx_listener_register; |
| } |
| |
| 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; |
| } |
| |
| return 0; |
| |
| err_switchdev_init: |
| err_lag_init: |
| mlxsw_sp_buffers_fini(mlxsw_sp); |
| err_buffers_init: |
| err_flood_init: |
| mlxsw_sp_traps_fini(mlxsw_sp); |
| err_rx_listener_register: |
| mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE); |
| err_event_register: |
| mlxsw_sp_ports_remove(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_switchdev_fini(mlxsw_sp); |
| mlxsw_sp_buffers_fini(mlxsw_sp); |
| mlxsw_sp_traps_fini(mlxsw_sp); |
| mlxsw_sp_event_unregister(mlxsw_sp, MLXSW_TRAP_ID_PUDE); |
| mlxsw_sp_ports_remove(mlxsw_sp); |
| } |
| |
| static struct mlxsw_config_profile mlxsw_sp_config_profile = { |
| .used_max_vepa_channels = 1, |
| .max_vepa_channels = 0, |
| .used_max_lag = 1, |
| .max_lag = MLXSW_SP_LAG_MAX, |
| .used_max_port_per_lag = 1, |
| .max_port_per_lag = MLXSW_SP_PORT_PER_LAG_MAX, |
| .used_max_mid = 1, |
| .max_mid = MLXSW_SP_MID_MAX, |
| .used_max_pgt = 1, |
| .max_pgt = 0, |
| .used_max_system_port = 1, |
| .max_system_port = 64, |
| .used_max_vlan_groups = 1, |
| .max_vlan_groups = 127, |
| .used_max_regions = 1, |
| .max_regions = 400, |
| .used_flood_tables = 1, |
| .used_flood_mode = 1, |
| .flood_mode = 3, |
| .max_fid_offset_flood_tables = 2, |
| .fid_offset_flood_table_size = VLAN_N_VID - 1, |
| .max_fid_flood_tables = 2, |
| .fid_flood_table_size = MLXSW_SP_VFID_MAX, |
| .used_max_ib_mc = 1, |
| .max_ib_mc = 0, |
| .used_max_pkey = 1, |
| .max_pkey = 0, |
| .swid_config = { |
| { |
| .used_type = 1, |
| .type = MLXSW_PORT_SWID_TYPE_ETH, |
| } |
| }, |
| }; |
| |
| static struct mlxsw_driver mlxsw_sp_driver = { |
| .kind = MLXSW_DEVICE_KIND_SPECTRUM, |
| .owner = THIS_MODULE, |
| .priv_size = sizeof(struct mlxsw_sp), |
| .init = mlxsw_sp_init, |
| .fini = mlxsw_sp_fini, |
| .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, |
| }; |
| |
| static int |
| mlxsw_sp_port_fdb_flush_by_port(const struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| 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); |
| mlxsw_reg_sfdf_system_port_set(sfdf_pl, mlxsw_sp_port->local_port); |
| |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); |
| } |
| |
| 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); |
| |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); |
| } |
| |
| static int |
| mlxsw_sp_port_fdb_flush_by_lag_id(const struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| 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); |
| mlxsw_reg_sfdf_lag_id_set(sfdf_pl, mlxsw_sp_port->lag_id); |
| |
| 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); |
| |
| return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfdf), sfdf_pl); |
| } |
| |
| static int |
| __mlxsw_sp_port_fdb_flush(const struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| int err, last_err = 0; |
| u16 vid; |
| |
| for (vid = 1; vid < VLAN_N_VID - 1; vid++) { |
| err = mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_port, vid); |
| if (err) |
| last_err = err; |
| } |
| |
| return last_err; |
| } |
| |
| static int |
| __mlxsw_sp_port_fdb_flush_lagged(const struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| int err, last_err = 0; |
| u16 vid; |
| |
| for (vid = 1; vid < VLAN_N_VID - 1; vid++) { |
| err = mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_port, vid); |
| if (err) |
| last_err = err; |
| } |
| |
| return last_err; |
| } |
| |
| static int mlxsw_sp_port_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| if (!list_empty(&mlxsw_sp_port->vports_list)) |
| if (mlxsw_sp_port->lagged) |
| return __mlxsw_sp_port_fdb_flush_lagged(mlxsw_sp_port); |
| else |
| return __mlxsw_sp_port_fdb_flush(mlxsw_sp_port); |
| else |
| if (mlxsw_sp_port->lagged) |
| return mlxsw_sp_port_fdb_flush_by_lag_id(mlxsw_sp_port); |
| else |
| return mlxsw_sp_port_fdb_flush_by_port(mlxsw_sp_port); |
| } |
| |
| static int mlxsw_sp_vport_fdb_flush(struct mlxsw_sp_port *mlxsw_sp_vport) |
| { |
| u16 vfid = mlxsw_sp_vport_vfid_get(mlxsw_sp_vport); |
| u16 fid = mlxsw_sp_vfid_to_fid(vfid); |
| |
| if (mlxsw_sp_vport->lagged) |
| return mlxsw_sp_port_fdb_flush_by_lag_id_fid(mlxsw_sp_vport, |
| fid); |
| else |
| return mlxsw_sp_port_fdb_flush_by_port_fid(mlxsw_sp_vport, fid); |
| } |
| |
| static bool mlxsw_sp_port_dev_check(const struct net_device *dev) |
| { |
| return dev->netdev_ops == &mlxsw_sp_port_netdev_ops; |
| } |
| |
| static int mlxsw_sp_port_bridge_join(struct mlxsw_sp_port *mlxsw_sp_port) |
| { |
| 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_port->learning = 1; |
| mlxsw_sp_port->learning_sync = 1; |
| mlxsw_sp_port->uc_flood = 1; |
| mlxsw_sp_port->bridged = 1; |
| |
| return 0; |
| } |
| |
| static int mlxsw_sp_port_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_port, |
| bool flush_fdb) |
| { |
| struct net_device *dev = mlxsw_sp_port->dev; |
| |
| if (flush_fdb && mlxsw_sp_port_fdb_flush(mlxsw_sp_port)) |
| netdev_err(mlxsw_sp_port->dev, "Failed to flush FDB\n"); |
| |
| mlxsw_sp_port_pvid_set(mlxsw_sp_port, 1); |
| |
| mlxsw_sp_port->learning = 0; |
| mlxsw_sp_port->learning_sync = 0; |
| mlxsw_sp_port->uc_flood = 0; |
| mlxsw_sp_port->bridged = 0; |
| |
| /* Add implicit VLAN interface in the device, so that untagged |
| * packets will be classified to the default vFID. |
| */ |
| return mlxsw_sp_port_add_vid(dev, 0, 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, |
| struct net_device *br_dev) |
| { |
| if (--mlxsw_sp->master_bridge.ref_count == 0) |
| mlxsw_sp->master_bridge.dev = NULL; |
| } |
| |
| 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; |
| int i; |
| |
| for (i = 0; i < MLXSW_SP_LAG_MAX; 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) |
| { |
| int i; |
| |
| for (i = 0; i < MLXSW_SP_PORT_PER_LAG_MAX; i++) { |
| if (!mlxsw_sp_port_lagged_get(mlxsw_sp, lag_id, i)) { |
| *p_port_index = i; |
| return 0; |
| } |
| } |
| return -EBUSY; |
| } |
| |
| 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++; |
| 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 int mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport, |
| struct net_device *br_dev, |
| bool flush_fdb); |
| |
| static int 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; |
| struct mlxsw_sp_port *mlxsw_sp_vport; |
| struct mlxsw_sp_upper *lag; |
| u16 lag_id = mlxsw_sp_port->lag_id; |
| int err; |
| |
| if (!mlxsw_sp_port->lagged) |
| return 0; |
| lag = mlxsw_sp_lag_get(mlxsw_sp, lag_id); |
| WARN_ON(lag->ref_count == 0); |
| |
| err = mlxsw_sp_lag_col_port_disable(mlxsw_sp_port, lag_id); |
| if (err) |
| return err; |
| err = mlxsw_sp_lag_col_port_remove(mlxsw_sp_port, lag_id); |
| if (err) |
| return err; |
| |
| /* In case we leave a LAG device that has bridges built on top, |
| * then their teardown sequence is never issued and we need to |
| * invoke the necessary cleanup routines ourselves. |
| */ |
| list_for_each_entry(mlxsw_sp_vport, &mlxsw_sp_port->vports_list, |
| vport.list) { |
| struct net_device *br_dev; |
| |
| if (!mlxsw_sp_vport->bridged) |
| continue; |
| |
| br_dev = mlxsw_sp_vport_br_get(mlxsw_sp_vport); |
| mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport, br_dev, false); |
| } |
| |
| if (mlxsw_sp_port->bridged) { |
| mlxsw_sp_port_active_vlans_del(mlxsw_sp_port); |
| mlxsw_sp_port_bridge_leave(mlxsw_sp_port, false); |
| mlxsw_sp_master_bridge_dec(mlxsw_sp, NULL); |
| } |
| |
| if (lag->ref_count == 1) { |
| if (mlxsw_sp_port_fdb_flush_by_lag_id(mlxsw_sp_port)) |
| netdev_err(mlxsw_sp_port->dev, "Failed to flush FDB\n"); |
| err = mlxsw_sp_lag_destroy(mlxsw_sp, lag_id); |
| if (err) |
| return err; |
| } |
| |
| mlxsw_core_lag_mapping_clear(mlxsw_sp->core, lag_id, |
| mlxsw_sp_port->local_port); |
| mlxsw_sp_port->lagged = 0; |
| lag->ref_count--; |
| return 0; |
| } |
| |
| 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 (!mlxsw_sp_vport) { |
| WARN_ON(!mlxsw_sp_vport); |
| return -EINVAL; |
| } |
| |
| mlxsw_sp_vport->dev = vlan_dev; |
| |
| return 0; |
| } |
| |
| static int 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 (!mlxsw_sp_vport) { |
| WARN_ON(!mlxsw_sp_vport); |
| return -EINVAL; |
| } |
| |
| /* When removing a VLAN device while still bridged we should first |
| * remove it from the bridge, as we receive the bridge's notification |
| * when the vPort is already gone. |
| */ |
| if (mlxsw_sp_vport->bridged) { |
| struct net_device *br_dev; |
| |
| br_dev = mlxsw_sp_vport_br_get(mlxsw_sp_vport); |
| mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport, br_dev, true); |
| } |
| |
| mlxsw_sp_vport->dev = mlxsw_sp_port->dev; |
| |
| return 0; |
| } |
| |
| 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; |
| |
| 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 (!info->master || !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 NOTIFY_BAD; |
| if (netif_is_lag_master(upper_dev) && |
| !mlxsw_sp_master_lag_check(mlxsw_sp, upper_dev, |
| info->upper_info)) |
| return NOTIFY_BAD; |
| 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); |
| if (err) { |
| netdev_err(dev, "Failed to link VLAN device\n"); |
| return NOTIFY_BAD; |
| } |
| } else { |
| err = mlxsw_sp_port_vlan_unlink(mlxsw_sp_port, |
| upper_dev); |
| if (err) { |
| netdev_err(dev, "Failed to unlink VLAN device\n"); |
| return NOTIFY_BAD; |
| } |
| } |
| } else if (netif_is_bridge_master(upper_dev)) { |
| if (info->linking) { |
| err = mlxsw_sp_port_bridge_join(mlxsw_sp_port); |
| if (err) { |
| netdev_err(dev, "Failed to join bridge\n"); |
| return NOTIFY_BAD; |
| } |
| mlxsw_sp_master_bridge_inc(mlxsw_sp, upper_dev); |
| } else { |
| err = mlxsw_sp_port_bridge_leave(mlxsw_sp_port, |
| true); |
| mlxsw_sp_master_bridge_dec(mlxsw_sp, upper_dev); |
| if (err) { |
| netdev_err(dev, "Failed to leave bridge\n"); |
| return NOTIFY_BAD; |
| } |
| } |
| } else if (netif_is_lag_master(upper_dev)) { |
| if (info->linking) { |
| err = mlxsw_sp_port_lag_join(mlxsw_sp_port, |
| upper_dev); |
| if (err) { |
| netdev_err(dev, "Failed to join link aggregation\n"); |
| return NOTIFY_BAD; |
| } |
| } else { |
| err = mlxsw_sp_port_lag_leave(mlxsw_sp_port, |
| upper_dev); |
| if (err) { |
| netdev_err(dev, "Failed to leave link aggregation\n"); |
| return NOTIFY_BAD; |
| } |
| } |
| } |
| break; |
| } |
| |
| return NOTIFY_DONE; |
| } |
| |
| 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 NOTIFY_DONE; |
| } |
| |
| 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 NOTIFY_DONE; |
| } |
| |
| 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 == NOTIFY_BAD) |
| return ret; |
| } |
| } |
| |
| return NOTIFY_DONE; |
| } |
| |
| static struct mlxsw_sp_vfid * |
| mlxsw_sp_br_vfid_find(const struct mlxsw_sp *mlxsw_sp, |
| const struct net_device *br_dev) |
| { |
| struct mlxsw_sp_vfid *vfid; |
| |
| list_for_each_entry(vfid, &mlxsw_sp->br_vfids.list, list) { |
| if (vfid->br_dev == br_dev) |
| return vfid; |
| } |
| |
| return NULL; |
| } |
| |
| static u16 mlxsw_sp_vfid_to_br_vfid(u16 vfid) |
| { |
| return vfid - MLXSW_SP_VFID_PORT_MAX; |
| } |
| |
| static u16 mlxsw_sp_br_vfid_to_vfid(u16 br_vfid) |
| { |
| return MLXSW_SP_VFID_PORT_MAX + br_vfid; |
| } |
| |
| static u16 mlxsw_sp_avail_br_vfid_get(const struct mlxsw_sp *mlxsw_sp) |
| { |
| return find_first_zero_bit(mlxsw_sp->br_vfids.mapped, |
| MLXSW_SP_VFID_BR_MAX); |
| } |
| |
| static struct mlxsw_sp_vfid *mlxsw_sp_br_vfid_create(struct mlxsw_sp *mlxsw_sp, |
| struct net_device *br_dev) |
| { |
| struct device *dev = mlxsw_sp->bus_info->dev; |
| struct mlxsw_sp_vfid *vfid; |
| u16 n_vfid; |
| int err; |
| |
| n_vfid = mlxsw_sp_br_vfid_to_vfid(mlxsw_sp_avail_br_vfid_get(mlxsw_sp)); |
| if (n_vfid == MLXSW_SP_VFID_MAX) { |
| dev_err(dev, "No available vFIDs\n"); |
| return ERR_PTR(-ERANGE); |
| } |
| |
| err = __mlxsw_sp_vfid_create(mlxsw_sp, n_vfid); |
| if (err) { |
| dev_err(dev, "Failed to create vFID=%d\n", n_vfid); |
| return ERR_PTR(err); |
| } |
| |
| vfid = kzalloc(sizeof(*vfid), GFP_KERNEL); |
| if (!vfid) |
| goto err_allocate_vfid; |
| |
| vfid->vfid = n_vfid; |
| vfid->br_dev = br_dev; |
| |
| list_add(&vfid->list, &mlxsw_sp->br_vfids.list); |
| set_bit(mlxsw_sp_vfid_to_br_vfid(n_vfid), mlxsw_sp->br_vfids.mapped); |
| |
| return vfid; |
| |
| err_allocate_vfid: |
| __mlxsw_sp_vfid_destroy(mlxsw_sp, n_vfid); |
| return ERR_PTR(-ENOMEM); |
| } |
| |
| static void mlxsw_sp_br_vfid_destroy(struct mlxsw_sp *mlxsw_sp, |
| struct mlxsw_sp_vfid *vfid) |
| { |
| u16 br_vfid = mlxsw_sp_vfid_to_br_vfid(vfid->vfid); |
| |
| clear_bit(br_vfid, mlxsw_sp->br_vfids.mapped); |
| list_del(&vfid->list); |
| |
| __mlxsw_sp_vfid_destroy(mlxsw_sp, vfid->vfid); |
| |
| kfree(vfid); |
| } |
| |
| static int mlxsw_sp_vport_bridge_leave(struct mlxsw_sp_port *mlxsw_sp_vport, |
| struct net_device *br_dev, |
| bool flush_fdb) |
| { |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp; |
| u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); |
| struct net_device *dev = mlxsw_sp_vport->dev; |
| struct mlxsw_sp_vfid *vfid, *new_vfid; |
| int err; |
| |
| vfid = mlxsw_sp_br_vfid_find(mlxsw_sp, br_dev); |
| if (!vfid) { |
| WARN_ON(!vfid); |
| return -EINVAL; |
| } |
| |
| /* We need a vFID to go back to after leaving the bridge's vFID. */ |
| new_vfid = mlxsw_sp_vfid_find(mlxsw_sp, vid); |
| if (!new_vfid) { |
| new_vfid = mlxsw_sp_vfid_create(mlxsw_sp, vid); |
| if (IS_ERR(new_vfid)) { |
| netdev_err(dev, "Failed to create vFID for VID=%d\n", |
| vid); |
| return PTR_ERR(new_vfid); |
| } |
| } |
| |
| /* Invalidate existing {Port, VID} to vFID mapping and create a new |
| * one for the new vFID. |
| */ |
| err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
| false, |
| mlxsw_sp_vfid_to_fid(vfid->vfid), |
| vid); |
| if (err) { |
| netdev_err(dev, "Failed to invalidate {Port, VID} to vFID=%d mapping\n", |
| vfid->vfid); |
| goto err_port_vid_to_fid_invalidate; |
| } |
| |
| err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
| true, |
| mlxsw_sp_vfid_to_fid(new_vfid->vfid), |
| vid); |
| if (err) { |
| netdev_err(dev, "Failed to map {Port, VID} to vFID=%d\n", |
| new_vfid->vfid); |
| goto err_port_vid_to_fid_validate; |
| } |
| |
| err = mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false); |
| if (err) { |
| netdev_err(dev, "Failed to disable learning\n"); |
| goto err_port_vid_learning_set; |
| } |
| |
| err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, false, |
| false); |
| if (err) { |
| netdev_err(dev, "Failed clear to clear flooding\n"); |
| goto err_vport_flood_set; |
| } |
| |
| err = mlxsw_sp_port_stp_state_set(mlxsw_sp_vport, vid, |
| MLXSW_REG_SPMS_STATE_FORWARDING); |
| if (err) { |
| netdev_err(dev, "Failed to set STP state\n"); |
| goto err_port_stp_state_set; |
| } |
| |
| if (flush_fdb && mlxsw_sp_vport_fdb_flush(mlxsw_sp_vport)) |
| netdev_err(dev, "Failed to flush FDB\n"); |
| |
| /* Switch between the vFIDs and destroy the old one if needed. */ |
| new_vfid->nr_vports++; |
| mlxsw_sp_vport->vport.vfid = new_vfid; |
| vfid->nr_vports--; |
| if (!vfid->nr_vports) |
| mlxsw_sp_br_vfid_destroy(mlxsw_sp, vfid); |
| |
| mlxsw_sp_vport->learning = 0; |
| mlxsw_sp_vport->learning_sync = 0; |
| mlxsw_sp_vport->uc_flood = 0; |
| mlxsw_sp_vport->bridged = 0; |
| |
| return 0; |
| |
| err_port_stp_state_set: |
| err_vport_flood_set: |
| err_port_vid_learning_set: |
| err_port_vid_to_fid_validate: |
| err_port_vid_to_fid_invalidate: |
| /* Rollback vFID only if new. */ |
| if (!new_vfid->nr_vports) |
| mlxsw_sp_vfid_destroy(mlxsw_sp, new_vfid); |
| return err; |
| } |
| |
| static int mlxsw_sp_vport_bridge_join(struct mlxsw_sp_port *mlxsw_sp_vport, |
| struct net_device *br_dev) |
| { |
| struct mlxsw_sp_vfid *old_vfid = mlxsw_sp_vport->vport.vfid; |
| struct mlxsw_sp *mlxsw_sp = mlxsw_sp_vport->mlxsw_sp; |
| u16 vid = mlxsw_sp_vport_vid_get(mlxsw_sp_vport); |
| struct net_device *dev = mlxsw_sp_vport->dev; |
| struct mlxsw_sp_vfid *vfid; |
| int err; |
| |
| vfid = mlxsw_sp_br_vfid_find(mlxsw_sp, br_dev); |
| if (!vfid) { |
| vfid = mlxsw_sp_br_vfid_create(mlxsw_sp, br_dev); |
| if (IS_ERR(vfid)) { |
| netdev_err(dev, "Failed to create bridge vFID\n"); |
| return PTR_ERR(vfid); |
| } |
| } |
| |
| err = mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, true, false); |
| if (err) { |
| netdev_err(dev, "Failed to setup flooding for vFID=%d\n", |
| vfid->vfid); |
| goto err_port_flood_set; |
| } |
| |
| 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; |
| } |
| |
| /* We need to invalidate existing {Port, VID} to vFID mapping and |
| * create a new one for the bridge's vFID. |
| */ |
| err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
| false, |
| mlxsw_sp_vfid_to_fid(old_vfid->vfid), |
| vid); |
| if (err) { |
| netdev_err(dev, "Failed to invalidate {Port, VID} to vFID=%d mapping\n", |
| old_vfid->vfid); |
| goto err_port_vid_to_fid_invalidate; |
| } |
| |
| err = mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, |
| true, |
| mlxsw_sp_vfid_to_fid(vfid->vfid), |
| vid); |
| if (err) { |
| netdev_err(dev, "Failed to map {Port, VID} to vFID=%d\n", |
| vfid->vfid); |
| goto err_port_vid_to_fid_validate; |
| } |
| |
| /* Switch between the vFIDs and destroy the old one if needed. */ |
| vfid->nr_vports++; |
| mlxsw_sp_vport->vport.vfid = vfid; |
| old_vfid->nr_vports--; |
| if (!old_vfid->nr_vports) |
| mlxsw_sp_vfid_destroy(mlxsw_sp, old_vfid); |
| |
| mlxsw_sp_vport->learning = 1; |
| mlxsw_sp_vport->learning_sync = 1; |
| mlxsw_sp_vport->uc_flood = 1; |
| mlxsw_sp_vport->bridged = 1; |
| |
| return 0; |
| |
| err_port_vid_to_fid_validate: |
| mlxsw_sp_port_vid_to_fid_set(mlxsw_sp_vport, |
| MLXSW_REG_SVFA_MT_PORT_VID_TO_FID, false, |
| mlxsw_sp_vfid_to_fid(old_vfid->vfid), vid); |
| err_port_vid_to_fid_invalidate: |
| mlxsw_sp_port_vid_learning_set(mlxsw_sp_vport, vid, false); |
| err_port_vid_learning_set: |
| mlxsw_sp_vport_flood_set(mlxsw_sp_vport, vfid->vfid, false, false); |
| err_port_flood_set: |
| if (!vfid->nr_vports) |
| mlxsw_sp_br_vfid_destroy(mlxsw_sp, vfid); |
| return err; |
| } |
| |
| 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) { |
| if (mlxsw_sp_vport_br_get(mlxsw_sp_vport) == 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; |
| |
| mlxsw_sp_vport = mlxsw_sp_port_vport_find(mlxsw_sp_port, vid); |
| |
| switch (event) { |
| case NETDEV_PRECHANGEUPPER: |
| upper_dev = info->upper_dev; |
| if (!info->master || !info->linking) |
| break; |
| if (!netif_is_bridge_master(upper_dev)) |
| return NOTIFY_BAD; |
| /* We can't have multiple VLAN interfaces configured on |
| * the same port and being members in the same bridge. |
| */ |
| if (!mlxsw_sp_port_master_bridge_check(mlxsw_sp_port, |
| upper_dev)) |
| return NOTIFY_BAD; |
| break; |
| case NETDEV_CHANGEUPPER: |
| upper_dev = info->upper_dev; |
| if (!info->master) |
| break; |
| if (info->linking) { |
| if (!mlxsw_sp_vport) { |
| WARN_ON(!mlxsw_sp_vport); |
| return NOTIFY_BAD; |
| } |
| err = mlxsw_sp_vport_bridge_join(mlxsw_sp_vport, |
| upper_dev); |
| if (err) { |
| netdev_err(dev, "Failed to join bridge\n"); |
| return NOTIFY_BAD; |
| } |
| } else { |
| /* We ignore bridge's unlinking notifications if vPort |
| * is gone, since we already left the bridge when the |
| * VLAN device was unlinked from the real device. |
| */ |
| if (!mlxsw_sp_vport) |
| return NOTIFY_DONE; |
| err = mlxsw_sp_vport_bridge_leave(mlxsw_sp_vport, |
| upper_dev, true); |
| if (err) { |
| netdev_err(dev, "Failed to leave bridge\n"); |
| return NOTIFY_BAD; |
| } |
| } |
| } |
| |
| return NOTIFY_DONE; |
| } |
| |
| 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 == NOTIFY_BAD) |
| return ret; |
| } |
| } |
| |
| return NOTIFY_DONE; |
| } |
| |
| 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); |
| |
| return NOTIFY_DONE; |
| } |
| |
| 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); |
| |
| if (mlxsw_sp_port_dev_check(dev)) |
| return mlxsw_sp_netdevice_port_event(dev, event, ptr); |
| |
| if (netif_is_lag_master(dev)) |
| return mlxsw_sp_netdevice_lag_event(dev, event, ptr); |
| |
| if (is_vlan_dev(dev)) |
| return mlxsw_sp_netdevice_vlan_event(dev, event, ptr); |
| |
| return NOTIFY_DONE; |
| } |
| |
| static struct notifier_block mlxsw_sp_netdevice_nb __read_mostly = { |
| .notifier_call = mlxsw_sp_netdevice_event, |
| }; |
| |
| static int __init mlxsw_sp_module_init(void) |
| { |
| int err; |
| |
| register_netdevice_notifier(&mlxsw_sp_netdevice_nb); |
| err = mlxsw_core_driver_register(&mlxsw_sp_driver); |
| if (err) |
| goto err_core_driver_register; |
| return 0; |
| |
| err_core_driver_register: |
| unregister_netdevice_notifier(&mlxsw_sp_netdevice_nb); |
| return err; |
| } |
| |
| static void __exit mlxsw_sp_module_exit(void) |
| { |
| mlxsw_core_driver_unregister(&mlxsw_sp_driver); |
| 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 <jiri@mellanox.com>"); |
| MODULE_DESCRIPTION("Mellanox Spectrum driver"); |
| MODULE_MLXSW_DRIVER_ALIAS(MLXSW_DEVICE_KIND_SPECTRUM); |