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author | Ioana Ciornei <ioana.ciornei@nxp.com> | 2021-03-10 14:14:52 +0200 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2021-03-10 13:30:36 -0800 |
commit | f48298d3fbfaadedd7e7bd1cdcbb3f1291a8d42d (patch) | |
tree | 571f3606a71d8569136d6711af45c721e484280d /drivers/net/ethernet/freescale | |
parent | 1c4928fc2929a502f01d4b7001a37db51309ceb9 (diff) | |
download | lwn-f48298d3fbfaadedd7e7bd1cdcbb3f1291a8d42d.tar.gz lwn-f48298d3fbfaadedd7e7bd1cdcbb3f1291a8d42d.zip |
staging: dpaa2-switch: move the driver out of staging
Now that the dpaa2-switch driver has basic I/O capabilities on the
switch port net_devices and multiple bridging domains are supported,
move the driver out of staging.
The dpaa2-switch driver is placed right next to the dpaa2-eth driver
since, in the near future, they will be sharing most of the data path.
I didn't implement code reuse in this patch series because I wanted to
keep it as small as possible.
Also, the README is removed from staging with the intention to add
proper rst documentation afterwards to actually match was is supported
by the driver.
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale')
-rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/Kconfig | 8 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/Makefile | 2 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c | 189 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c | 2901 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.h | 178 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpsw-cmd.h | 458 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpsw.c | 1486 | ||||
-rw-r--r-- | drivers/net/ethernet/freescale/dpaa2/dpsw.h | 751 |
8 files changed, 5973 insertions, 0 deletions
diff --git a/drivers/net/ethernet/freescale/dpaa2/Kconfig b/drivers/net/ethernet/freescale/dpaa2/Kconfig index ee7a906e30b3..d029b69c3f18 100644 --- a/drivers/net/ethernet/freescale/dpaa2/Kconfig +++ b/drivers/net/ethernet/freescale/dpaa2/Kconfig @@ -29,3 +29,11 @@ config FSL_DPAA2_PTP_CLOCK help This driver adds support for using the DPAA2 1588 timer module as a PTP clock. + +config FSL_DPAA2_SWITCH + tristate "Freescale DPAA2 Ethernet Switch" + depends on BRIDGE || BRIDGE=n + depends on NET_SWITCHDEV + help + Driver for Freescale DPAA2 Ethernet Switch. This driver manages + switch objects discovered on the Freeescale MC bus. diff --git a/drivers/net/ethernet/freescale/dpaa2/Makefile b/drivers/net/ethernet/freescale/dpaa2/Makefile index 146cb3540e61..644ef9ae02a3 100644 --- a/drivers/net/ethernet/freescale/dpaa2/Makefile +++ b/drivers/net/ethernet/freescale/dpaa2/Makefile @@ -5,11 +5,13 @@ obj-$(CONFIG_FSL_DPAA2_ETH) += fsl-dpaa2-eth.o obj-$(CONFIG_FSL_DPAA2_PTP_CLOCK) += fsl-dpaa2-ptp.o +obj-$(CONFIG_FSL_DPAA2_SWITCH) += fsl-dpaa2-switch.o fsl-dpaa2-eth-objs := dpaa2-eth.o dpaa2-ethtool.o dpni.o dpaa2-mac.o dpmac.o dpaa2-eth-devlink.o fsl-dpaa2-eth-${CONFIG_FSL_DPAA2_ETH_DCB} += dpaa2-eth-dcb.o fsl-dpaa2-eth-${CONFIG_DEBUG_FS} += dpaa2-eth-debugfs.o fsl-dpaa2-ptp-objs := dpaa2-ptp.o dprtc.o +fsl-dpaa2-switch-objs := dpaa2-switch.o dpaa2-switch-ethtool.o dpsw.o # Needed by the tracing framework CFLAGS_dpaa2-eth.o := -I$(src) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c new file mode 100644 index 000000000000..70e04321c420 --- /dev/null +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch-ethtool.c @@ -0,0 +1,189 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * DPAA2 Ethernet Switch ethtool support + * + * Copyright 2014-2016 Freescale Semiconductor Inc. + * Copyright 2017-2018 NXP + * + */ + +#include <linux/ethtool.h> + +#include "dpaa2-switch.h" + +static struct { + enum dpsw_counter id; + char name[ETH_GSTRING_LEN]; +} dpaa2_switch_ethtool_counters[] = { + {DPSW_CNT_ING_FRAME, "rx frames"}, + {DPSW_CNT_ING_BYTE, "rx bytes"}, + {DPSW_CNT_ING_FLTR_FRAME, "rx filtered frames"}, + {DPSW_CNT_ING_FRAME_DISCARD, "rx discarded frames"}, + {DPSW_CNT_ING_BCAST_FRAME, "rx b-cast frames"}, + {DPSW_CNT_ING_BCAST_BYTES, "rx b-cast bytes"}, + {DPSW_CNT_ING_MCAST_FRAME, "rx m-cast frames"}, + {DPSW_CNT_ING_MCAST_BYTE, "rx m-cast bytes"}, + {DPSW_CNT_EGR_FRAME, "tx frames"}, + {DPSW_CNT_EGR_BYTE, "tx bytes"}, + {DPSW_CNT_EGR_FRAME_DISCARD, "tx discarded frames"}, + {DPSW_CNT_ING_NO_BUFF_DISCARD, "rx discarded no buffer frames"}, +}; + +#define DPAA2_SWITCH_NUM_COUNTERS ARRAY_SIZE(dpaa2_switch_ethtool_counters) + +static void dpaa2_switch_get_drvinfo(struct net_device *netdev, + struct ethtool_drvinfo *drvinfo) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + u16 version_major, version_minor; + int err; + + strscpy(drvinfo->driver, KBUILD_MODNAME, sizeof(drvinfo->driver)); + + err = dpsw_get_api_version(port_priv->ethsw_data->mc_io, 0, + &version_major, + &version_minor); + if (err) + strscpy(drvinfo->fw_version, "N/A", + sizeof(drvinfo->fw_version)); + else + snprintf(drvinfo->fw_version, sizeof(drvinfo->fw_version), + "%u.%u", version_major, version_minor); + + strscpy(drvinfo->bus_info, dev_name(netdev->dev.parent->parent), + sizeof(drvinfo->bus_info)); +} + +static int +dpaa2_switch_get_link_ksettings(struct net_device *netdev, + struct ethtool_link_ksettings *link_ksettings) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + struct dpsw_link_state state = {0}; + int err = 0; + + err = dpsw_if_get_link_state(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, + &state); + if (err) { + netdev_err(netdev, "ERROR %d getting link state\n", err); + goto out; + } + + /* At the moment, we have no way of interrogating the DPMAC + * from the DPSW side or there may not exist a DPMAC at all. + * Report only autoneg state, duplexity and speed. + */ + if (state.options & DPSW_LINK_OPT_AUTONEG) + link_ksettings->base.autoneg = AUTONEG_ENABLE; + if (!(state.options & DPSW_LINK_OPT_HALF_DUPLEX)) + link_ksettings->base.duplex = DUPLEX_FULL; + link_ksettings->base.speed = state.rate; + +out: + return err; +} + +static int +dpaa2_switch_set_link_ksettings(struct net_device *netdev, + const struct ethtool_link_ksettings *link_ksettings) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + struct ethsw_core *ethsw = port_priv->ethsw_data; + struct dpsw_link_cfg cfg = {0}; + bool if_running; + int err = 0, ret; + + /* Interface needs to be down to change link settings */ + if_running = netif_running(netdev); + if (if_running) { + err = dpsw_if_disable(ethsw->mc_io, 0, + ethsw->dpsw_handle, + port_priv->idx); + if (err) { + netdev_err(netdev, "dpsw_if_disable err %d\n", err); + return err; + } + } + + cfg.rate = link_ksettings->base.speed; + if (link_ksettings->base.autoneg == AUTONEG_ENABLE) + cfg.options |= DPSW_LINK_OPT_AUTONEG; + else + cfg.options &= ~DPSW_LINK_OPT_AUTONEG; + if (link_ksettings->base.duplex == DUPLEX_HALF) + cfg.options |= DPSW_LINK_OPT_HALF_DUPLEX; + else + cfg.options &= ~DPSW_LINK_OPT_HALF_DUPLEX; + + err = dpsw_if_set_link_cfg(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, + &cfg); + + if (if_running) { + ret = dpsw_if_enable(ethsw->mc_io, 0, + ethsw->dpsw_handle, + port_priv->idx); + if (ret) { + netdev_err(netdev, "dpsw_if_enable err %d\n", ret); + return ret; + } + } + return err; +} + +static int dpaa2_switch_ethtool_get_sset_count(struct net_device *dev, int sset) +{ + switch (sset) { + case ETH_SS_STATS: + return DPAA2_SWITCH_NUM_COUNTERS; + default: + return -EOPNOTSUPP; + } +} + +static void dpaa2_switch_ethtool_get_strings(struct net_device *netdev, + u32 stringset, u8 *data) +{ + int i; + + switch (stringset) { + case ETH_SS_STATS: + for (i = 0; i < DPAA2_SWITCH_NUM_COUNTERS; i++) + memcpy(data + i * ETH_GSTRING_LEN, + dpaa2_switch_ethtool_counters[i].name, + ETH_GSTRING_LEN); + break; + } +} + +static void dpaa2_switch_ethtool_get_stats(struct net_device *netdev, + struct ethtool_stats *stats, + u64 *data) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + int i, err; + + for (i = 0; i < DPAA2_SWITCH_NUM_COUNTERS; i++) { + err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, + dpaa2_switch_ethtool_counters[i].id, + &data[i]); + if (err) + netdev_err(netdev, "dpsw_if_get_counter[%s] err %d\n", + dpaa2_switch_ethtool_counters[i].name, err); + } +} + +const struct ethtool_ops dpaa2_switch_port_ethtool_ops = { + .get_drvinfo = dpaa2_switch_get_drvinfo, + .get_link = ethtool_op_get_link, + .get_link_ksettings = dpaa2_switch_get_link_ksettings, + .set_link_ksettings = dpaa2_switch_set_link_ksettings, + .get_strings = dpaa2_switch_ethtool_get_strings, + .get_ethtool_stats = dpaa2_switch_ethtool_get_stats, + .get_sset_count = dpaa2_switch_ethtool_get_sset_count, +}; diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c new file mode 100644 index 000000000000..2fd05dd18d46 --- /dev/null +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.c @@ -0,0 +1,2901 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * DPAA2 Ethernet Switch driver + * + * Copyright 2014-2016 Freescale Semiconductor Inc. + * Copyright 2017-2021 NXP + * + */ + +#include <linux/module.h> + +#include <linux/interrupt.h> +#include <linux/msi.h> +#include <linux/kthread.h> +#include <linux/workqueue.h> +#include <linux/iommu.h> + +#include <linux/fsl/mc.h> + +#include "dpaa2-switch.h" + +/* Minimal supported DPSW version */ +#define DPSW_MIN_VER_MAJOR 8 +#define DPSW_MIN_VER_MINOR 9 + +#define DEFAULT_VLAN_ID 1 + +static u16 dpaa2_switch_port_get_fdb_id(struct ethsw_port_priv *port_priv) +{ + return port_priv->fdb->fdb_id; +} + +static struct dpaa2_switch_fdb *dpaa2_switch_fdb_get_unused(struct ethsw_core *ethsw) +{ + int i; + + for (i = 0; i < ethsw->sw_attr.num_ifs; i++) + if (!ethsw->fdbs[i].in_use) + return ðsw->fdbs[i]; + return NULL; +} + +static u16 dpaa2_switch_port_set_fdb(struct ethsw_port_priv *port_priv, + struct net_device *bridge_dev) +{ + struct ethsw_port_priv *other_port_priv = NULL; + struct dpaa2_switch_fdb *fdb; + struct net_device *other_dev; + struct list_head *iter; + + /* If we leave a bridge (bridge_dev is NULL), find an unused + * FDB and use that. + */ + if (!bridge_dev) { + fdb = dpaa2_switch_fdb_get_unused(port_priv->ethsw_data); + + /* If there is no unused FDB, we must be the last port that + * leaves the last bridge, all the others are standalone. We + * can just keep the FDB that we already have. + */ + + if (!fdb) { + port_priv->fdb->bridge_dev = NULL; + return 0; + } + + port_priv->fdb = fdb; + port_priv->fdb->in_use = true; + port_priv->fdb->bridge_dev = NULL; + return 0; + } + + /* The below call to netdev_for_each_lower_dev() demands the RTNL lock + * being held. Assert on it so that it's easier to catch new code + * paths that reach this point without the RTNL lock. + */ + ASSERT_RTNL(); + + /* If part of a bridge, use the FDB of the first dpaa2 switch interface + * to be present in that bridge + */ + netdev_for_each_lower_dev(bridge_dev, other_dev, iter) { + if (!dpaa2_switch_port_dev_check(other_dev)) + continue; + + if (other_dev == port_priv->netdev) + continue; + + other_port_priv = netdev_priv(other_dev); + break; + } + + /* The current port is about to change its FDB to the one used by the + * first port that joined the bridge. + */ + if (other_port_priv) { + /* The previous FDB is about to become unused, since the + * interface is no longer standalone. + */ + port_priv->fdb->in_use = false; + port_priv->fdb->bridge_dev = NULL; + + /* Get a reference to the new FDB */ + port_priv->fdb = other_port_priv->fdb; + } + + /* Keep track of the new upper bridge device */ + port_priv->fdb->bridge_dev = bridge_dev; + + return 0; +} + +static void *dpaa2_iova_to_virt(struct iommu_domain *domain, + dma_addr_t iova_addr) +{ + phys_addr_t phys_addr; + + phys_addr = domain ? iommu_iova_to_phys(domain, iova_addr) : iova_addr; + + return phys_to_virt(phys_addr); +} + +static int dpaa2_switch_add_vlan(struct ethsw_port_priv *port_priv, u16 vid) +{ + struct ethsw_core *ethsw = port_priv->ethsw_data; + struct dpsw_vlan_cfg vcfg = {0}; + int err; + + vcfg.fdb_id = dpaa2_switch_port_get_fdb_id(port_priv); + err = dpsw_vlan_add(ethsw->mc_io, 0, + ethsw->dpsw_handle, vid, &vcfg); + if (err) { + dev_err(ethsw->dev, "dpsw_vlan_add err %d\n", err); + return err; + } + ethsw->vlans[vid] = ETHSW_VLAN_MEMBER; + + return 0; +} + +static bool dpaa2_switch_port_is_up(struct ethsw_port_priv *port_priv) +{ + struct net_device *netdev = port_priv->netdev; + struct dpsw_link_state state; + int err; + + err = dpsw_if_get_link_state(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, &state); + if (err) { + netdev_err(netdev, "dpsw_if_get_link_state() err %d\n", err); + return true; + } + + WARN_ONCE(state.up > 1, "Garbage read into link_state"); + + return state.up ? true : false; +} + +static int dpaa2_switch_port_set_pvid(struct ethsw_port_priv *port_priv, u16 pvid) +{ + struct ethsw_core *ethsw = port_priv->ethsw_data; + struct net_device *netdev = port_priv->netdev; + struct dpsw_tci_cfg tci_cfg = { 0 }; + bool up; + int err, ret; + + err = dpsw_if_get_tci(ethsw->mc_io, 0, ethsw->dpsw_handle, + port_priv->idx, &tci_cfg); + if (err) { + netdev_err(netdev, "dpsw_if_get_tci err %d\n", err); + return err; + } + + tci_cfg.vlan_id = pvid; + + /* Interface needs to be down to change PVID */ + up = dpaa2_switch_port_is_up(port_priv); + if (up) { + err = dpsw_if_disable(ethsw->mc_io, 0, + ethsw->dpsw_handle, + port_priv->idx); + if (err) { + netdev_err(netdev, "dpsw_if_disable err %d\n", err); + return err; + } + } + + err = dpsw_if_set_tci(ethsw->mc_io, 0, ethsw->dpsw_handle, + port_priv->idx, &tci_cfg); + if (err) { + netdev_err(netdev, "dpsw_if_set_tci err %d\n", err); + goto set_tci_error; + } + + /* Delete previous PVID info and mark the new one */ + port_priv->vlans[port_priv->pvid] &= ~ETHSW_VLAN_PVID; + port_priv->vlans[pvid] |= ETHSW_VLAN_PVID; + port_priv->pvid = pvid; + +set_tci_error: + if (up) { + ret = dpsw_if_enable(ethsw->mc_io, 0, + ethsw->dpsw_handle, + port_priv->idx); + if (ret) { + netdev_err(netdev, "dpsw_if_enable err %d\n", ret); + return ret; + } + } + + return err; +} + +static int dpaa2_switch_port_add_vlan(struct ethsw_port_priv *port_priv, + u16 vid, u16 flags) +{ + struct ethsw_core *ethsw = port_priv->ethsw_data; + struct net_device *netdev = port_priv->netdev; + struct dpsw_vlan_if_cfg vcfg = {0}; + int err; + + if (port_priv->vlans[vid]) { + netdev_warn(netdev, "VLAN %d already configured\n", vid); + return -EEXIST; + } + + /* If hit, this VLAN rule will lead the packet into the FDB table + * specified in the vlan configuration below + */ + vcfg.num_ifs = 1; + vcfg.if_id[0] = port_priv->idx; + vcfg.fdb_id = dpaa2_switch_port_get_fdb_id(port_priv); + vcfg.options |= DPSW_VLAN_ADD_IF_OPT_FDB_ID; + err = dpsw_vlan_add_if(ethsw->mc_io, 0, ethsw->dpsw_handle, vid, &vcfg); + if (err) { + netdev_err(netdev, "dpsw_vlan_add_if err %d\n", err); + return err; + } + + port_priv->vlans[vid] = ETHSW_VLAN_MEMBER; + + if (flags & BRIDGE_VLAN_INFO_UNTAGGED) { + err = dpsw_vlan_add_if_untagged(ethsw->mc_io, 0, + ethsw->dpsw_handle, + vid, &vcfg); + if (err) { + netdev_err(netdev, + "dpsw_vlan_add_if_untagged err %d\n", err); + return err; + } + port_priv->vlans[vid] |= ETHSW_VLAN_UNTAGGED; + } + + if (flags & BRIDGE_VLAN_INFO_PVID) { + err = dpaa2_switch_port_set_pvid(port_priv, vid); + if (err) + return err; + } + + return 0; +} + +static int dpaa2_switch_port_set_stp_state(struct ethsw_port_priv *port_priv, u8 state) +{ + struct dpsw_stp_cfg stp_cfg = { + .state = state, + }; + int err; + u16 vid; + + if (!netif_running(port_priv->netdev) || state == port_priv->stp_state) + return 0; /* Nothing to do */ + + for (vid = 0; vid <= VLAN_VID_MASK; vid++) { + if (port_priv->vlans[vid] & ETHSW_VLAN_MEMBER) { + stp_cfg.vlan_id = vid; + err = dpsw_if_set_stp(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, &stp_cfg); + if (err) { + netdev_err(port_priv->netdev, + "dpsw_if_set_stp err %d\n", err); + return err; + } + } + } + + port_priv->stp_state = state; + + return 0; +} + +static int dpaa2_switch_dellink(struct ethsw_core *ethsw, u16 vid) +{ + struct ethsw_port_priv *ppriv_local = NULL; + int i, err; + + if (!ethsw->vlans[vid]) + return -ENOENT; + + err = dpsw_vlan_remove(ethsw->mc_io, 0, ethsw->dpsw_handle, vid); + if (err) { + dev_err(ethsw->dev, "dpsw_vlan_remove err %d\n", err); + return err; + } + ethsw->vlans[vid] = 0; + + for (i = 0; i < ethsw->sw_attr.num_ifs; i++) { + ppriv_local = ethsw->ports[i]; + ppriv_local->vlans[vid] = 0; + } + + return 0; +} + +static int dpaa2_switch_port_fdb_add_uc(struct ethsw_port_priv *port_priv, + const unsigned char *addr) +{ + struct dpsw_fdb_unicast_cfg entry = {0}; + u16 fdb_id; + int err; + + entry.if_egress = port_priv->idx; + entry.type = DPSW_FDB_ENTRY_STATIC; + ether_addr_copy(entry.mac_addr, addr); + + fdb_id = dpaa2_switch_port_get_fdb_id(port_priv); + err = dpsw_fdb_add_unicast(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + fdb_id, &entry); + if (err) + netdev_err(port_priv->netdev, + "dpsw_fdb_add_unicast err %d\n", err); + return err; +} + +static int dpaa2_switch_port_fdb_del_uc(struct ethsw_port_priv *port_priv, + const unsigned char *addr) +{ + struct dpsw_fdb_unicast_cfg entry = {0}; + u16 fdb_id; + int err; + + entry.if_egress = port_priv->idx; + entry.type = DPSW_FDB_ENTRY_STATIC; + ether_addr_copy(entry.mac_addr, addr); + + fdb_id = dpaa2_switch_port_get_fdb_id(port_priv); + err = dpsw_fdb_remove_unicast(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + fdb_id, &entry); + /* Silently discard error for calling multiple times the del command */ + if (err && err != -ENXIO) + netdev_err(port_priv->netdev, + "dpsw_fdb_remove_unicast err %d\n", err); + return err; +} + +static int dpaa2_switch_port_fdb_add_mc(struct ethsw_port_priv *port_priv, + const unsigned char *addr) +{ + struct dpsw_fdb_multicast_cfg entry = {0}; + u16 fdb_id; + int err; + + ether_addr_copy(entry.mac_addr, addr); + entry.type = DPSW_FDB_ENTRY_STATIC; + entry.num_ifs = 1; + entry.if_id[0] = port_priv->idx; + + fdb_id = dpaa2_switch_port_get_fdb_id(port_priv); + err = dpsw_fdb_add_multicast(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + fdb_id, &entry); + /* Silently discard error for calling multiple times the add command */ + if (err && err != -ENXIO) + netdev_err(port_priv->netdev, "dpsw_fdb_add_multicast err %d\n", + err); + return err; +} + +static int dpaa2_switch_port_fdb_del_mc(struct ethsw_port_priv *port_priv, + const unsigned char *addr) +{ + struct dpsw_fdb_multicast_cfg entry = {0}; + u16 fdb_id; + int err; + + ether_addr_copy(entry.mac_addr, addr); + entry.type = DPSW_FDB_ENTRY_STATIC; + entry.num_ifs = 1; + entry.if_id[0] = port_priv->idx; + + fdb_id = dpaa2_switch_port_get_fdb_id(port_priv); + err = dpsw_fdb_remove_multicast(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + fdb_id, &entry); + /* Silently discard error for calling multiple times the del command */ + if (err && err != -ENAVAIL) + netdev_err(port_priv->netdev, + "dpsw_fdb_remove_multicast err %d\n", err); + return err; +} + +static void dpaa2_switch_port_get_stats(struct net_device *netdev, + struct rtnl_link_stats64 *stats) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + u64 tmp; + int err; + + err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, + DPSW_CNT_ING_FRAME, &stats->rx_packets); + if (err) + goto error; + + err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, + DPSW_CNT_EGR_FRAME, &stats->tx_packets); + if (err) + goto error; + + err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, + DPSW_CNT_ING_BYTE, &stats->rx_bytes); + if (err) + goto error; + + err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, + DPSW_CNT_EGR_BYTE, &stats->tx_bytes); + if (err) + goto error; + + err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, + DPSW_CNT_ING_FRAME_DISCARD, + &stats->rx_dropped); + if (err) + goto error; + + err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, + DPSW_CNT_ING_FLTR_FRAME, + &tmp); + if (err) + goto error; + stats->rx_dropped += tmp; + + err = dpsw_if_get_counter(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, + DPSW_CNT_EGR_FRAME_DISCARD, + &stats->tx_dropped); + if (err) + goto error; + + return; + +error: + netdev_err(netdev, "dpsw_if_get_counter err %d\n", err); +} + +static bool dpaa2_switch_port_has_offload_stats(const struct net_device *netdev, + int attr_id) +{ + return (attr_id == IFLA_OFFLOAD_XSTATS_CPU_HIT); +} + +static int dpaa2_switch_port_get_offload_stats(int attr_id, + const struct net_device *netdev, + void *sp) +{ + switch (attr_id) { + case IFLA_OFFLOAD_XSTATS_CPU_HIT: + dpaa2_switch_port_get_stats((struct net_device *)netdev, sp); + return 0; + } + + return -EINVAL; +} + +static int dpaa2_switch_port_change_mtu(struct net_device *netdev, int mtu) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + int err; + + err = dpsw_if_set_max_frame_length(port_priv->ethsw_data->mc_io, + 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, + (u16)ETHSW_L2_MAX_FRM(mtu)); + if (err) { + netdev_err(netdev, + "dpsw_if_set_max_frame_length() err %d\n", err); + return err; + } + + netdev->mtu = mtu; + return 0; +} + +static int dpaa2_switch_port_carrier_state_sync(struct net_device *netdev) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + struct dpsw_link_state state; + int err; + + /* Interrupts are received even though no one issued an 'ifconfig up' + * on the switch interface. Ignore these link state update interrupts + */ + if (!netif_running(netdev)) + return 0; + + err = dpsw_if_get_link_state(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx, &state); + if (err) { + netdev_err(netdev, "dpsw_if_get_link_state() err %d\n", err); + return err; + } + + WARN_ONCE(state.up > 1, "Garbage read into link_state"); + + if (state.up != port_priv->link_state) { + if (state.up) { + netif_carrier_on(netdev); + netif_tx_start_all_queues(netdev); + } else { + netif_carrier_off(netdev); + netif_tx_stop_all_queues(netdev); + } + port_priv->link_state = state.up; + } + + return 0; +} + +/* Manage all NAPI instances for the control interface. + * + * We only have one RX queue and one Tx Conf queue for all + * switch ports. Therefore, we only need to enable the NAPI instance once, the + * first time one of the switch ports runs .dev_open(). + */ + +static void dpaa2_switch_enable_ctrl_if_napi(struct ethsw_core *ethsw) +{ + int i; + + /* Access to the ethsw->napi_users relies on the RTNL lock */ + ASSERT_RTNL(); + + /* a new interface is using the NAPI instance */ + ethsw->napi_users++; + + /* if there is already a user of the instance, return */ + if (ethsw->napi_users > 1) + return; + + for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++) + napi_enable(ðsw->fq[i].napi); +} + +static void dpaa2_switch_disable_ctrl_if_napi(struct ethsw_core *ethsw) +{ + int i; + + /* Access to the ethsw->napi_users relies on the RTNL lock */ + ASSERT_RTNL(); + + /* If we are not the last interface using the NAPI, return */ + ethsw->napi_users--; + if (ethsw->napi_users) + return; + + for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++) + napi_disable(ðsw->fq[i].napi); +} + +static int dpaa2_switch_port_open(struct net_device *netdev) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + struct ethsw_core *ethsw = port_priv->ethsw_data; + int err; + + /* Explicitly set carrier off, otherwise + * netif_carrier_ok() will return true and cause 'ip link show' + * to report the LOWER_UP flag, even though the link + * notification wasn't even received. + */ + netif_carrier_off(netdev); + + err = dpsw_if_enable(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx); + if (err) { + netdev_err(netdev, "dpsw_if_enable err %d\n", err); + return err; + } + + /* sync carrier state */ + err = dpaa2_switch_port_carrier_state_sync(netdev); + if (err) { + netdev_err(netdev, + "dpaa2_switch_port_carrier_state_sync err %d\n", err); + goto err_carrier_sync; + } + + dpaa2_switch_enable_ctrl_if_napi(ethsw); + + return 0; + +err_carrier_sync: + dpsw_if_disable(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx); + return err; +} + +static int dpaa2_switch_port_stop(struct net_device *netdev) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + struct ethsw_core *ethsw = port_priv->ethsw_data; + int err; + + err = dpsw_if_disable(port_priv->ethsw_data->mc_io, 0, + port_priv->ethsw_data->dpsw_handle, + port_priv->idx); + if (err) { + netdev_err(netdev, "dpsw_if_disable err %d\n", err); + return err; + } + + dpaa2_switch_disable_ctrl_if_napi(ethsw); + + return 0; +} + +static int dpaa2_switch_port_parent_id(struct net_device *dev, + struct netdev_phys_item_id *ppid) +{ + struct ethsw_port_priv *port_priv = netdev_priv(dev); + + ppid->id_len = 1; + ppid->id[0] = port_priv->ethsw_data->dev_id; + + return 0; +} + +static int dpaa2_switch_port_get_phys_name(struct net_device *netdev, char *name, + size_t len) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + int err; + + err = snprintf(name, len, "p%d", port_priv->idx); + if (err >= len) + return -EINVAL; + + return 0; +} + +struct ethsw_dump_ctx { + struct net_device *dev; + struct sk_buff *skb; + struct netlink_callback *cb; + int idx; +}; + +static int dpaa2_switch_fdb_dump_nl(struct fdb_dump_entry *entry, + struct ethsw_dump_ctx *dump) +{ + int is_dynamic = entry->type & DPSW_FDB_ENTRY_DINAMIC; + u32 portid = NETLINK_CB(dump->cb->skb).portid; + u32 seq = dump->cb->nlh->nlmsg_seq; + struct nlmsghdr *nlh; + struct ndmsg *ndm; + + if (dump->idx < dump->cb->args[2]) + goto skip; + + nlh = nlmsg_put(dump->skb, portid, seq, RTM_NEWNEIGH, + sizeof(*ndm), NLM_F_MULTI); + if (!nlh) + return -EMSGSIZE; + + ndm = nlmsg_data(nlh); + ndm->ndm_family = AF_BRIDGE; + ndm->ndm_pad1 = 0; + ndm->ndm_pad2 = 0; + ndm->ndm_flags = NTF_SELF; + ndm->ndm_type = 0; + ndm->ndm_ifindex = dump->dev->ifindex; + ndm->ndm_state = is_dynamic ? NUD_REACHABLE : NUD_NOARP; + + if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, entry->mac_addr)) + goto nla_put_failure; + + nlmsg_end(dump->skb, nlh); + +skip: + dump->idx++; + return 0; + +nla_put_failure: + nlmsg_cancel(dump->skb, nlh); + return -EMSGSIZE; +} + +static int dpaa2_switch_port_fdb_valid_entry(struct fdb_dump_entry *entry, + struct ethsw_port_priv *port_priv) +{ + int idx = port_priv->idx; + int valid; + + if (entry->type & DPSW_FDB_ENTRY_TYPE_UNICAST) + valid = entry->if_info == port_priv->idx; + else + valid = entry->if_mask[idx / 8] & BIT(idx % 8); + + return valid; +} + +static int dpaa2_switch_fdb_iterate(struct ethsw_port_priv *port_priv, + dpaa2_switch_fdb_cb_t cb, void *data) +{ + struct net_device *net_dev = port_priv->netdev; + struct ethsw_core *ethsw = port_priv->ethsw_data; + struct device *dev = net_dev->dev.parent; + struct fdb_dump_entry *fdb_entries; + struct fdb_dump_entry fdb_entry; + dma_addr_t fdb_dump_iova; + u16 num_fdb_entries; + u32 fdb_dump_size; + int err = 0, i; + u8 *dma_mem; + u16 fdb_id; + + fdb_dump_size = ethsw->sw_attr.max_fdb_entries * sizeof(fdb_entry); + dma_mem = kzalloc(fdb_dump_size, GFP_KERNEL); + if (!dma_mem) + return -ENOMEM; + + fdb_dump_iova = dma_map_single(dev, dma_mem, fdb_dump_size, + DMA_FROM_DEVICE); + if (dma_mapping_error(dev, fdb_dump_iova)) { + netdev_err(net_dev, "dma_map_single() failed\n"); + err = -ENOMEM; + goto err_map; + } + + fdb_id = dpaa2_switch_port_get_fdb_id(port_priv); + err = dpsw_fdb_dump(ethsw->mc_io, 0, ethsw->dpsw_handle, fdb_id, + fdb_dump_iova, fdb_dump_size, &num_fdb_entries); + if (err) { + netdev_err(net_dev, "dpsw_fdb_dump() = %d\n", err); + goto err_dump; + } + + dma_unmap_single(dev, fdb_dump_iova, fdb_dump_size, DMA_FROM_DEVICE); + + fdb_entries = (struct fdb_dump_entry *)dma_mem; + for (i = 0; i < num_fdb_entries; i++) { + fdb_entry = fdb_entries[i]; + + err = cb(port_priv, &fdb_entry, data); + if (err) + goto end; + } + +end: + kfree(dma_mem); + + return 0; + +err_dump: + dma_unmap_single(dev, fdb_dump_iova, fdb_dump_size, DMA_TO_DEVICE); +err_map: + kfree(dma_mem); + return err; +} + +static int dpaa2_switch_fdb_entry_dump(struct ethsw_port_priv *port_priv, + struct fdb_dump_entry *fdb_entry, + void *data) +{ + if (!dpaa2_switch_port_fdb_valid_entry(fdb_entry, port_priv)) + return 0; + + return dpaa2_switch_fdb_dump_nl(fdb_entry, data); +} + +static int dpaa2_switch_port_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, + struct net_device *net_dev, + struct net_device *filter_dev, int *idx) +{ + struct ethsw_port_priv *port_priv = netdev_priv(net_dev); + struct ethsw_dump_ctx dump = { + .dev = net_dev, + .skb = skb, + .cb = cb, + .idx = *idx, + }; + int err; + + err = dpaa2_switch_fdb_iterate(port_priv, dpaa2_switch_fdb_entry_dump, &dump); + *idx = dump.idx; + + return err; +} + +static int dpaa2_switch_fdb_entry_fast_age(struct ethsw_port_priv *port_priv, + struct fdb_dump_entry *fdb_entry, + void *data __always_unused) +{ + if (!dpaa2_switch_port_fdb_valid_entry(fdb_entry, port_priv)) + return 0; + + if (!(fdb_entry->type & DPSW_FDB_ENTRY_TYPE_DYNAMIC)) + return 0; + + if (fdb_entry->type & DPSW_FDB_ENTRY_TYPE_UNICAST) + dpaa2_switch_port_fdb_del_uc(port_priv, fdb_entry->mac_addr); + else + dpaa2_switch_port_fdb_del_mc(port_priv, fdb_entry->mac_addr); + + return 0; +} + +static void dpaa2_switch_port_fast_age(struct ethsw_port_priv *port_priv) +{ + dpaa2_switch_fdb_iterate(port_priv, + dpaa2_switch_fdb_entry_fast_age, NULL); +} + +static int dpaa2_switch_port_vlan_add(struct net_device *netdev, __be16 proto, + u16 vid) +{ + struct switchdev_obj_port_vlan vlan = { + .obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN, + .vid = vid, + .obj.orig_dev = netdev, + /* This API only allows programming tagged, non-PVID VIDs */ + .flags = 0, + }; + + return dpaa2_switch_port_vlans_add(netdev, &vlan); +} + +static int dpaa2_switch_port_vlan_kill(struct net_device *netdev, __be16 proto, + u16 vid) +{ + struct switchdev_obj_port_vlan vlan = { + .obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN, + .vid = vid, + .obj.orig_dev = netdev, + /* This API only allows programming tagged, non-PVID VIDs */ + .flags = 0, + }; + + return dpaa2_switch_port_vlans_del(netdev, &vlan); +} + +static int dpaa2_switch_port_set_mac_addr(struct ethsw_port_priv *port_priv) +{ + struct ethsw_core *ethsw = port_priv->ethsw_data; + struct net_device *net_dev = port_priv->netdev; + struct device *dev = net_dev->dev.parent; + u8 mac_addr[ETH_ALEN]; + int err; + + if (!(ethsw->features & ETHSW_FEATURE_MAC_ADDR)) + return 0; + + /* Get firmware address, if any */ + err = dpsw_if_get_port_mac_addr(ethsw->mc_io, 0, ethsw->dpsw_handle, + port_priv->idx, mac_addr); + if (err) { + dev_err(dev, "dpsw_if_get_port_mac_addr() failed\n"); + return err; + } + + /* First check if firmware has any address configured by bootloader */ + if (!is_zero_ether_addr(mac_addr)) { + memcpy(net_dev->dev_addr, mac_addr, net_dev->addr_len); + } else { + /* No MAC address configured, fill in net_dev->dev_addr + * with a random one + */ + eth_hw_addr_random(net_dev); + dev_dbg_once(dev, "device(s) have all-zero hwaddr, replaced with random\n"); + + /* Override NET_ADDR_RANDOM set by eth_hw_addr_random(); for all + * practical purposes, this will be our "permanent" mac address, + * at least until the next reboot. This move will also permit + * register_netdevice() to properly fill up net_dev->perm_addr. + */ + net_dev->addr_assign_type = NET_ADDR_PERM; + } + + return 0; +} + +static void dpaa2_switch_free_fd(const struct ethsw_core *ethsw, + const struct dpaa2_fd *fd) +{ + struct device *dev = ethsw->dev; + unsigned char *buffer_start; + struct sk_buff **skbh, *skb; + dma_addr_t fd_addr; + + fd_addr = dpaa2_fd_get_addr(fd); + skbh = dpaa2_iova_to_virt(ethsw->iommu_domain, fd_addr); + + skb = *skbh; + buffer_start = (unsigned char *)skbh; + + dma_unmap_single(dev, fd_addr, + skb_tail_pointer(skb) - buffer_start, + DMA_TO_DEVICE); + + /* Move on with skb release */ + dev_kfree_skb(skb); +} + +static int dpaa2_switch_build_single_fd(struct ethsw_core *ethsw, + struct sk_buff *skb, + struct dpaa2_fd *fd) +{ + struct device *dev = ethsw->dev; + struct sk_buff **skbh; + dma_addr_t addr; + u8 *buff_start; + void *hwa; + + buff_start = PTR_ALIGN(skb->data - DPAA2_SWITCH_TX_DATA_OFFSET - + DPAA2_SWITCH_TX_BUF_ALIGN, + DPAA2_SWITCH_TX_BUF_ALIGN); + + /* Clear FAS to have consistent values for TX confirmation. It is + * located in the first 8 bytes of the buffer's hardware annotation + * area + */ + hwa = buff_start + DPAA2_SWITCH_SWA_SIZE; + memset(hwa, 0, 8); + + /* Store a backpointer to the skb at the beginning of the buffer + * (in the private data area) such that we can release it + * on Tx confirm + */ + skbh = (struct sk_buff **)buff_start; + *skbh = skb; + + addr = dma_map_single(dev, buff_start, + skb_tail_pointer(skb) - buff_start, + DMA_TO_DEVICE); + if (unlikely(dma_mapping_error(dev, addr))) + return -ENOMEM; + + /* Setup the FD fields */ + memset(fd, 0, sizeof(*fd)); + + dpaa2_fd_set_addr(fd, addr); + dpaa2_fd_set_offset(fd, (u16)(skb->data - buff_start)); + dpaa2_fd_set_len(fd, skb->len); + dpaa2_fd_set_format(fd, dpaa2_fd_single); + + return 0; +} + +static netdev_tx_t dpaa2_switch_port_tx(struct sk_buff *skb, + struct net_device *net_dev) +{ + struct ethsw_port_priv *port_priv = netdev_priv(net_dev); + struct ethsw_core *ethsw = port_priv->ethsw_data; + int retries = DPAA2_SWITCH_SWP_BUSY_RETRIES; + struct dpaa2_fd fd; + int err; + + if (unlikely(skb_headroom(skb) < DPAA2_SWITCH_NEEDED_HEADROOM)) { + struct sk_buff *ns; + + ns = skb_realloc_headroom(skb, DPAA2_SWITCH_NEEDED_HEADROOM); + if (unlikely(!ns)) { + net_err_ratelimited("%s: Error reallocating skb headroom\n", net_dev->name); + goto err_free_skb; + } + dev_consume_skb_any(skb); + skb = ns; + } + + /* We'll be holding a back-reference to the skb until Tx confirmation */ + skb = skb_unshare(skb, GFP_ATOMIC); + if (unlikely(!skb)) { + /* skb_unshare() has already freed the skb */ + net_err_ratelimited("%s: Error copying the socket buffer\n", net_dev->name); + goto err_exit; + } + + /* At this stage, we do not support non-linear skbs so just try to + * linearize the skb and if that's not working, just drop the packet. + */ + err = skb_linearize(skb); + if (err) { + net_err_ratelimited("%s: skb_linearize error (%d)!\n", net_dev->name, err); + goto err_free_skb; + } + + err = dpaa2_switch_build_single_fd(ethsw, skb, &fd); + if (unlikely(err)) { + net_err_ratelimited("%s: ethsw_build_*_fd() %d\n", net_dev->name, err); + goto err_free_skb; + } + + do { + err = dpaa2_io_service_enqueue_qd(NULL, + port_priv->tx_qdid, + 8, 0, &fd); + retries--; + } while (err == -EBUSY && retries); + + if (unlikely(err < 0)) { + dpaa2_switch_free_fd(ethsw, &fd); + goto err_exit; + } + + return NETDEV_TX_OK; + +err_free_skb: + dev_kfree_skb(skb); +err_exit: + return NETDEV_TX_OK; +} + +static const struct net_device_ops dpaa2_switch_port_ops = { + .ndo_open = dpaa2_switch_port_open, + .ndo_stop = dpaa2_switch_port_stop, + + .ndo_set_mac_address = eth_mac_addr, + .ndo_get_stats64 = dpaa2_switch_port_get_stats, + .ndo_change_mtu = dpaa2_switch_port_change_mtu, + .ndo_has_offload_stats = dpaa2_switch_port_has_offload_stats, + .ndo_get_offload_stats = dpaa2_switch_port_get_offload_stats, + .ndo_fdb_dump = dpaa2_switch_port_fdb_dump, + .ndo_vlan_rx_add_vid = dpaa2_switch_port_vlan_add, + .ndo_vlan_rx_kill_vid = dpaa2_switch_port_vlan_kill, + + .ndo_start_xmit = dpaa2_switch_port_tx, + .ndo_get_port_parent_id = dpaa2_switch_port_parent_id, + .ndo_get_phys_port_name = dpaa2_switch_port_get_phys_name, +}; + +bool dpaa2_switch_port_dev_check(const struct net_device *netdev) +{ + return netdev->netdev_ops == &dpaa2_switch_port_ops; +} + +static void dpaa2_switch_links_state_update(struct ethsw_core *ethsw) +{ + int i; + + for (i = 0; i < ethsw->sw_attr.num_ifs; i++) { + dpaa2_switch_port_carrier_state_sync(ethsw->ports[i]->netdev); + dpaa2_switch_port_set_mac_addr(ethsw->ports[i]); + } +} + +static irqreturn_t dpaa2_switch_irq0_handler_thread(int irq_num, void *arg) +{ + struct device *dev = (struct device *)arg; + struct ethsw_core *ethsw = dev_get_drvdata(dev); + + /* Mask the events and the if_id reserved bits to be cleared on read */ + u32 status = DPSW_IRQ_EVENT_LINK_CHANGED | 0xFFFF0000; + int err; + + err = dpsw_get_irq_status(ethsw->mc_io, 0, ethsw->dpsw_handle, + DPSW_IRQ_INDEX_IF, &status); + if (err) { + dev_err(dev, "Can't get irq status (err %d)\n", err); + + err = dpsw_clear_irq_status(ethsw->mc_io, 0, ethsw->dpsw_handle, + DPSW_IRQ_INDEX_IF, 0xFFFFFFFF); + if (err) + dev_err(dev, "Can't clear irq status (err %d)\n", err); + goto out; + } + + if (status & DPSW_IRQ_EVENT_LINK_CHANGED) + dpaa2_switch_links_state_update(ethsw); + +out: + return IRQ_HANDLED; +} + +static int dpaa2_switch_setup_irqs(struct fsl_mc_device *sw_dev) +{ + struct device *dev = &sw_dev->dev; + struct ethsw_core *ethsw = dev_get_drvdata(dev); + u32 mask = DPSW_IRQ_EVENT_LINK_CHANGED; + struct fsl_mc_device_irq *irq; + int err; + + err = fsl_mc_allocate_irqs(sw_dev); + if (err) { + dev_err(dev, "MC irqs allocation failed\n"); + return err; + } + + if (WARN_ON(sw_dev->obj_desc.irq_count != DPSW_IRQ_NUM)) { + err = -EINVAL; + goto free_irq; + } + + err = dpsw_set_irq_enable(ethsw->mc_io, 0, ethsw->dpsw_handle, + DPSW_IRQ_INDEX_IF, 0); + if (err) { + dev_err(dev, "dpsw_set_irq_enable err %d\n", err); + goto free_irq; + } + + irq = sw_dev->irqs[DPSW_IRQ_INDEX_IF]; + + err = devm_request_threaded_irq(dev, irq->msi_desc->irq, + NULL, + dpaa2_switch_irq0_handler_thread, + IRQF_NO_SUSPEND | IRQF_ONESHOT, + dev_name(dev), dev); + if (err) { + dev_err(dev, "devm_request_threaded_irq(): %d\n", err); + goto free_irq; + } + + err = dpsw_set_irq_mask(ethsw->mc_io, 0, ethsw->dpsw_handle, + DPSW_IRQ_INDEX_IF, mask); + if (err) { + dev_err(dev, "dpsw_set_irq_mask(): %d\n", err); + goto free_devm_irq; + } + + err = dpsw_set_irq_enable(ethsw->mc_io, 0, ethsw->dpsw_handle, + DPSW_IRQ_INDEX_IF, 1); + if (err) { + dev_err(dev, "dpsw_set_irq_enable(): %d\n", err); + goto free_devm_irq; + } + + return 0; + +free_devm_irq: + devm_free_irq(dev, irq->msi_desc->irq, dev); +free_irq: + fsl_mc_free_irqs(sw_dev); + return err; +} + +static void dpaa2_switch_teardown_irqs(struct fsl_mc_device *sw_dev) +{ + struct device *dev = &sw_dev->dev; + struct ethsw_core *ethsw = dev_get_drvdata(dev); + int err; + + err = dpsw_set_irq_enable(ethsw->mc_io, 0, ethsw->dpsw_handle, + DPSW_IRQ_INDEX_IF, 0); + if (err) + dev_err(dev, "dpsw_set_irq_enable err %d\n", err); + + fsl_mc_free_irqs(sw_dev); +} + +static int dpaa2_switch_port_attr_stp_state_set(struct net_device *netdev, + u8 state) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + + return dpaa2_switch_port_set_stp_state(port_priv, state); +} + +static int dpaa2_switch_port_attr_set(struct net_device *netdev, + const struct switchdev_attr *attr, + struct netlink_ext_ack *extack) +{ + int err = 0; + + switch (attr->id) { + case SWITCHDEV_ATTR_ID_PORT_STP_STATE: + err = dpaa2_switch_port_attr_stp_state_set(netdev, + attr->u.stp_state); + break; + case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: + if (!attr->u.vlan_filtering) { + NL_SET_ERR_MSG_MOD(extack, + "The DPAA2 switch does not support VLAN-unaware operation"); + return -EOPNOTSUPP; + } + break; + default: + err = -EOPNOTSUPP; + break; + } + + return err; +} + +int dpaa2_switch_port_vlans_add(struct net_device *netdev, + const struct switchdev_obj_port_vlan *vlan) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + struct ethsw_core *ethsw = port_priv->ethsw_data; + struct dpsw_attr *attr = ðsw->sw_attr; + int err = 0; + + /* Make sure that the VLAN is not already configured + * on the switch port + */ + if (port_priv->vlans[vlan->vid] & ETHSW_VLAN_MEMBER) + return -EEXIST; + + /* Check if there is space for a new VLAN */ + err = dpsw_get_attributes(ethsw->mc_io, 0, ethsw->dpsw_handle, + ðsw->sw_attr); + if (err) { + netdev_err(netdev, "dpsw_get_attributes err %d\n", err); + return err; + } + if (attr->max_vlans - attr->num_vlans < 1) + return -ENOSPC; + + /* Check if there is space for a new VLAN */ + err = dpsw_get_attributes(ethsw->mc_io, 0, ethsw->dpsw_handle, + ðsw->sw_attr); + if (err) { + netdev_err(netdev, "dpsw_get_attributes err %d\n", err); + return err; + } + if (attr->max_vlans - attr->num_vlans < 1) + return -ENOSPC; + + if (!port_priv->ethsw_data->vlans[vlan->vid]) { + /* this is a new VLAN */ + err = dpaa2_switch_add_vlan(port_priv, vlan->vid); + if (err) + return err; + + port_priv->ethsw_data->vlans[vlan->vid] |= ETHSW_VLAN_GLOBAL; + } + + return dpaa2_switch_port_add_vlan(port_priv, vlan->vid, vlan->flags); +} + +static int dpaa2_switch_port_lookup_address(struct net_device *netdev, int is_uc, + const unsigned char *addr) +{ + struct netdev_hw_addr_list *list = (is_uc) ? &netdev->uc : &netdev->mc; + struct netdev_hw_addr *ha; + + netif_addr_lock_bh(netdev); + list_for_each_entry(ha, &list->list, list) { + if (ether_addr_equal(ha->addr, addr)) { + netif_addr_unlock_bh(netdev); + return 1; + } + } + netif_addr_unlock_bh(netdev); + return 0; +} + +static int dpaa2_switch_port_mdb_add(struct net_device *netdev, + const struct switchdev_obj_port_mdb *mdb) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + int err; + + /* Check if address is already set on this port */ + if (dpaa2_switch_port_lookup_address(netdev, 0, mdb->addr)) + return -EEXIST; + + err = dpaa2_switch_port_fdb_add_mc(port_priv, mdb->addr); + if (err) + return err; + + err = dev_mc_add(netdev, mdb->addr); + if (err) { + netdev_err(netdev, "dev_mc_add err %d\n", err); + dpaa2_switch_port_fdb_del_mc(port_priv, mdb->addr); + } + + return err; +} + +static int dpaa2_switch_port_obj_add(struct net_device *netdev, + const struct switchdev_obj *obj) +{ + int err; + + switch (obj->id) { + case SWITCHDEV_OBJ_ID_PORT_VLAN: + err = dpaa2_switch_port_vlans_add(netdev, + SWITCHDEV_OBJ_PORT_VLAN(obj)); + break; + case SWITCHDEV_OBJ_ID_PORT_MDB: + err = dpaa2_switch_port_mdb_add(netdev, + SWITCHDEV_OBJ_PORT_MDB(obj)); + break; + default: + err = -EOPNOTSUPP; + break; + } + + return err; +} + +static int dpaa2_switch_port_del_vlan(struct ethsw_port_priv *port_priv, u16 vid) +{ + struct ethsw_core *ethsw = port_priv->ethsw_data; + struct net_device *netdev = port_priv->netdev; + struct dpsw_vlan_if_cfg vcfg; + int i, err; + + if (!port_priv->vlans[vid]) + return -ENOENT; + + if (port_priv->vlans[vid] & ETHSW_VLAN_PVID) { + /* If we are deleting the PVID of a port, use VLAN 4095 instead + * as we are sure that neither the bridge nor the 8021q module + * will use it + */ + err = dpaa2_switch_port_set_pvid(port_priv, 4095); + if (err) + return err; + } + + vcfg.num_ifs = 1; + vcfg.if_id[0] = port_priv->idx; + if (port_priv->vlans[vid] & ETHSW_VLAN_UNTAGGED) { + err = dpsw_vlan_remove_if_untagged(ethsw->mc_io, 0, + ethsw->dpsw_handle, + vid, &vcfg); + if (err) { + netdev_err(netdev, + "dpsw_vlan_remove_if_untagged err %d\n", + err); + } + port_priv->vlans[vid] &= ~ETHSW_VLAN_UNTAGGED; + } + + if (port_priv->vlans[vid] & ETHSW_VLAN_MEMBER) { + err = dpsw_vlan_remove_if(ethsw->mc_io, 0, ethsw->dpsw_handle, + vid, &vcfg); + if (err) { + netdev_err(netdev, + "dpsw_vlan_remove_if err %d\n", err); + return err; + } + port_priv->vlans[vid] &= ~ETHSW_VLAN_MEMBER; + + /* Delete VLAN from switch if it is no longer configured on + * any port + */ + for (i = 0; i < ethsw->sw_attr.num_ifs; i++) + if (ethsw->ports[i]->vlans[vid] & ETHSW_VLAN_MEMBER) + return 0; /* Found a port member in VID */ + + ethsw->vlans[vid] &= ~ETHSW_VLAN_GLOBAL; + + err = dpaa2_switch_dellink(ethsw, vid); + if (err) + return err; + } + + return 0; +} + +int dpaa2_switch_port_vlans_del(struct net_device *netdev, + const struct switchdev_obj_port_vlan *vlan) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + + if (netif_is_bridge_master(vlan->obj.orig_dev)) + return -EOPNOTSUPP; + + return dpaa2_switch_port_del_vlan(port_priv, vlan->vid); +} + +static int dpaa2_switch_port_mdb_del(struct net_device *netdev, + const struct switchdev_obj_port_mdb *mdb) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + int err; + + if (!dpaa2_switch_port_lookup_address(netdev, 0, mdb->addr)) + return -ENOENT; + + err = dpaa2_switch_port_fdb_del_mc(port_priv, mdb->addr); + if (err) + return err; + + err = dev_mc_del(netdev, mdb->addr); + if (err) { + netdev_err(netdev, "dev_mc_del err %d\n", err); + return err; + } + + return err; +} + +static int dpaa2_switch_port_obj_del(struct net_device *netdev, + const struct switchdev_obj *obj) +{ + int err; + + switch (obj->id) { + case SWITCHDEV_OBJ_ID_PORT_VLAN: + err = dpaa2_switch_port_vlans_del(netdev, SWITCHDEV_OBJ_PORT_VLAN(obj)); + break; + case SWITCHDEV_OBJ_ID_PORT_MDB: + err = dpaa2_switch_port_mdb_del(netdev, SWITCHDEV_OBJ_PORT_MDB(obj)); + break; + default: + err = -EOPNOTSUPP; + break; + } + return err; +} + +static int dpaa2_switch_port_attr_set_event(struct net_device *netdev, + struct switchdev_notifier_port_attr_info *ptr) +{ + int err; + + err = switchdev_handle_port_attr_set(netdev, ptr, + dpaa2_switch_port_dev_check, + dpaa2_switch_port_attr_set); + return notifier_from_errno(err); +} + +static int dpaa2_switch_fdb_set_egress_flood(struct ethsw_core *ethsw, u16 fdb_id) +{ + struct dpsw_egress_flood_cfg flood_cfg; + int i = 0, j; + int err; + + /* Add all the DPAA2 switch ports found in the same bridging domain to + * the egress flooding domain + */ + for (j = 0; j < ethsw->sw_attr.num_ifs; j++) + if (ethsw->ports[j] && ethsw->ports[j]->fdb->fdb_id == fdb_id) + flood_cfg.if_id[i++] = ethsw->ports[j]->idx; + + /* Add the CTRL interface to the egress flooding domain */ + flood_cfg.if_id[i++] = ethsw->sw_attr.num_ifs; + + /* Use the FDB of the first dpaa2 switch port added to the bridge */ + flood_cfg.fdb_id = fdb_id; + + /* Setup broadcast flooding domain */ + flood_cfg.flood_type = DPSW_BROADCAST; + flood_cfg.num_ifs = i; + err = dpsw_set_egress_flood(ethsw->mc_io, 0, ethsw->dpsw_handle, + &flood_cfg); + if (err) { + dev_err(ethsw->dev, "dpsw_set_egress_flood() = %d\n", err); + return err; + } + + /* Setup unknown flooding domain */ + flood_cfg.flood_type = DPSW_FLOODING; + flood_cfg.num_ifs = i; + err = dpsw_set_egress_flood(ethsw->mc_io, 0, ethsw->dpsw_handle, + &flood_cfg); + if (err) { + dev_err(ethsw->dev, "dpsw_set_egress_flood() = %d\n", err); + return err; + } + + return 0; +} + +static int dpaa2_switch_port_bridge_join(struct net_device *netdev, + struct net_device *upper_dev) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + struct ethsw_core *ethsw = port_priv->ethsw_data; + struct ethsw_port_priv *other_port_priv; + struct net_device *other_dev; + struct list_head *iter; + int err; + + netdev_for_each_lower_dev(upper_dev, other_dev, iter) { + if (!dpaa2_switch_port_dev_check(other_dev)) + continue; + + other_port_priv = netdev_priv(other_dev); + if (other_port_priv->ethsw_data != port_priv->ethsw_data) { + netdev_err(netdev, + "Interface from a different DPSW is in the bridge already!\n"); + return -EINVAL; + } + } + + /* Delete the previously manually installed VLAN 1 */ + err = dpaa2_switch_port_del_vlan(port_priv, 1); + if (err) + return err; + + dpaa2_switch_port_set_fdb(port_priv, upper_dev); + + /* Setup the egress flood policy (broadcast, unknown unicast) */ + err = dpaa2_switch_fdb_set_egress_flood(ethsw, port_priv->fdb->fdb_id); + if (err) + goto err_egress_flood; + + return 0; + +err_egress_flood: + dpaa2_switch_port_set_fdb(port_priv, NULL); + return err; +} + +static int dpaa2_switch_port_clear_rxvlan(struct net_device *vdev, int vid, void *arg) +{ + __be16 vlan_proto = htons(ETH_P_8021Q); + + if (vdev) + vlan_proto = vlan_dev_vlan_proto(vdev); + + return dpaa2_switch_port_vlan_kill(arg, vlan_proto, vid); +} + +static int dpaa2_switch_port_restore_rxvlan(struct net_device *vdev, int vid, void *arg) +{ + __be16 vlan_proto = htons(ETH_P_8021Q); + + if (vdev) + vlan_proto = vlan_dev_vlan_proto(vdev); + + return dpaa2_switch_port_vlan_add(arg, vlan_proto, vid); +} + +static int dpaa2_switch_port_bridge_leave(struct net_device *netdev) +{ + struct ethsw_port_priv *port_priv = netdev_priv(netdev); + struct dpaa2_switch_fdb *old_fdb = port_priv->fdb; + struct ethsw_core *ethsw = port_priv->ethsw_data; + int err; + + /* First of all, fast age any learn FDB addresses on this switch port */ + dpaa2_switch_port_fast_age(port_priv); + + /* Clear all RX VLANs installed through vlan_vid_add() either as VLAN + * upper devices or otherwise from the FDB table that we are about to + * leave + */ + err = vlan_for_each(netdev, dpaa2_switch_port_clear_rxvlan, netdev); + if (err) + netdev_err(netdev, "Unable to clear RX VLANs from old FDB table, err (%d)\n", err); + + dpaa2_switch_port_set_fdb(port_priv, NULL); + + /* Restore all RX VLANs into the new FDB table that we just joined */ + err = vlan_for_each(netdev, dpaa2_switch_port_restore_rxvlan, netdev); + if (err) + netdev_err(netdev, "Unable to restore RX VLANs to the new FDB, err (%d)\n", err); + + /* Setup the egress flood policy (broadcast, unknown unicast). + * When the port is not under a bridge, only the CTRL interface is part + * of the flooding domain besides the actual port + */ + err = dpaa2_switch_fdb_set_egress_flood(ethsw, port_priv->fdb->fdb_id); + if (err) + return err; + + /* Recreate the egress flood domain of the FDB that we just left */ + err = dpaa2_switch_fdb_set_egress_flood(ethsw, old_fdb->fdb_id); + if (err) + return err; + + /* Add the VLAN 1 as PVID when not under a bridge. We need this since + * the dpaa2 switch interfaces are not capable to be VLAN unaware + */ + return dpaa2_switch_port_add_vlan(port_priv, DEFAULT_VLAN_ID, + BRIDGE_VLAN_INFO_UNTAGGED | BRIDGE_VLAN_INFO_PVID); +} + +static int dpaa2_switch_prevent_bridging_with_8021q_upper(struct net_device *netdev) +{ + struct net_device *upper_dev; + struct list_head *iter; + + /* RCU read lock not necessary because we have write-side protection + * (rtnl_mutex), however a non-rcu iterator does not exist. + */ + netdev_for_each_upper_dev_rcu(netdev, upper_dev, iter) + if (is_vlan_dev(upper_dev)) + return -EOPNOTSUPP; + + return 0; +} + +static int dpaa2_switch_port_netdevice_event(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct net_device *netdev = netdev_notifier_info_to_dev(ptr); + struct netdev_notifier_changeupper_info *info = ptr; + struct netlink_ext_ack *extack; + struct net_device *upper_dev; + int err = 0; + + if (!dpaa2_switch_port_dev_check(netdev)) + return NOTIFY_DONE; + + extack = netdev_notifier_info_to_extack(&info->info); + + switch (event) { + case NETDEV_PRECHANGEUPPER: + upper_dev = info->upper_dev; + if (!netif_is_bridge_master(upper_dev)) + break; + + if (!br_vlan_enabled(upper_dev)) { + NL_SET_ERR_MSG_MOD(extack, "Cannot join a VLAN-unaware bridge"); + err = -EOPNOTSUPP; + goto out; + } + + err = dpaa2_switch_prevent_bridging_with_8021q_upper(netdev); + if (err) { + NL_SET_ERR_MSG_MOD(extack, + "Cannot join a bridge while VLAN uppers are present"); + goto out; + } + + break; + case NETDEV_CHANGEUPPER: + upper_dev = info->upper_dev; + if (netif_is_bridge_master(upper_dev)) { + if (info->linking) + err = dpaa2_switch_port_bridge_join(netdev, upper_dev); + else + err = dpaa2_switch_port_bridge_leave(netdev); + } + break; + } + +out: + return notifier_from_errno(err); +} + +struct ethsw_switchdev_event_work { + struct work_struct work; + struct switchdev_notifier_fdb_info fdb_info; + struct net_device *dev; + unsigned long event; +}; + +static void dpaa2_switch_event_work(struct work_struct *work) +{ + struct ethsw_switchdev_event_work *switchdev_work = + container_of(work, struct ethsw_switchdev_event_work, work); + struct net_device *dev = switchdev_work->dev; + struct switchdev_notifier_fdb_info *fdb_info; + int err; + + rtnl_lock(); + fdb_info = &switchdev_work->fdb_info; + + switch (switchdev_work->event) { + case SWITCHDEV_FDB_ADD_TO_DEVICE: + if (!fdb_info->added_by_user) + break; + if (is_unicast_ether_addr(fdb_info->addr)) + err = dpaa2_switch_port_fdb_add_uc(netdev_priv(dev), + fdb_info->addr); + else + err = dpaa2_switch_port_fdb_add_mc(netdev_priv(dev), + fdb_info->addr); + if (err) + break; + fdb_info->offloaded = true; + call_switchdev_notifiers(SWITCHDEV_FDB_OFFLOADED, dev, + &fdb_info->info, NULL); + break; + case SWITCHDEV_FDB_DEL_TO_DEVICE: + if (!fdb_info->added_by_user) + break; + if (is_unicast_ether_addr(fdb_info->addr)) + dpaa2_switch_port_fdb_del_uc(netdev_priv(dev), fdb_info->addr); + else + dpaa2_switch_port_fdb_del_mc(netdev_priv(dev), fdb_info->addr); + break; + } + + rtnl_unlock(); + kfree(switchdev_work->fdb_info.addr); + kfree(switchdev_work); + dev_put(dev); +} + +/* Called under rcu_read_lock() */ +static int dpaa2_switch_port_event(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct net_device *dev = switchdev_notifier_info_to_dev(ptr); + struct ethsw_port_priv *port_priv = netdev_priv(dev); + struct ethsw_switchdev_event_work *switchdev_work; + struct switchdev_notifier_fdb_info *fdb_info = ptr; + struct ethsw_core *ethsw = port_priv->ethsw_data; + + if (event == SWITCHDEV_PORT_ATTR_SET) + return dpaa2_switch_port_attr_set_event(dev, ptr); + + if (!dpaa2_switch_port_dev_check(dev)) + return NOTIFY_DONE; + + switchdev_work = kzalloc(sizeof(*switchdev_work), GFP_ATOMIC); + if (!switchdev_work) + return NOTIFY_BAD; + + INIT_WORK(&switchdev_work->work, dpaa2_switch_event_work); + switchdev_work->dev = dev; + switchdev_work->event = event; + + switch (event) { + case SWITCHDEV_FDB_ADD_TO_DEVICE: + case SWITCHDEV_FDB_DEL_TO_DEVICE: + memcpy(&switchdev_work->fdb_info, ptr, + sizeof(switchdev_work->fdb_info)); + switchdev_work->fdb_info.addr = kzalloc(ETH_ALEN, GFP_ATOMIC); + if (!switchdev_work->fdb_info.addr) + goto err_addr_alloc; + + ether_addr_copy((u8 *)switchdev_work->fdb_info.addr, + fdb_info->addr); + + /* Take a reference on the device to avoid being freed. */ + dev_hold(dev); + break; + default: + kfree(switchdev_work); + return NOTIFY_DONE; + } + + queue_work(ethsw->workqueue, &switchdev_work->work); + + return NOTIFY_DONE; + +err_addr_alloc: + kfree(switchdev_work); + return NOTIFY_BAD; +} + +static int dpaa2_switch_port_obj_event(unsigned long event, + struct net_device *netdev, + struct switchdev_notifier_port_obj_info *port_obj_info) +{ + int err = -EOPNOTSUPP; + + if (!dpaa2_switch_port_dev_check(netdev)) + return NOTIFY_DONE; + + switch (event) { + case SWITCHDEV_PORT_OBJ_ADD: + err = dpaa2_switch_port_obj_add(netdev, port_obj_info->obj); + break; + case SWITCHDEV_PORT_OBJ_DEL: + err = dpaa2_switch_port_obj_del(netdev, port_obj_info->obj); + break; + } + + port_obj_info->handled = true; + return notifier_from_errno(err); +} + +static int dpaa2_switch_port_blocking_event(struct notifier_block *nb, + unsigned long event, void *ptr) +{ + struct net_device *dev = switchdev_notifier_info_to_dev(ptr); + + switch (event) { + case SWITCHDEV_PORT_OBJ_ADD: + case SWITCHDEV_PORT_OBJ_DEL: + return dpaa2_switch_port_obj_event(event, dev, ptr); + case SWITCHDEV_PORT_ATTR_SET: + return dpaa2_switch_port_attr_set_event(dev, ptr); + } + + return NOTIFY_DONE; +} + +/* Build a linear skb based on a single-buffer frame descriptor */ +static struct sk_buff *dpaa2_switch_build_linear_skb(struct ethsw_core *ethsw, + const struct dpaa2_fd *fd) +{ + u16 fd_offset = dpaa2_fd_get_offset(fd); + dma_addr_t addr = dpaa2_fd_get_addr(fd); + u32 fd_length = dpaa2_fd_get_len(fd); + struct device *dev = ethsw->dev; + struct sk_buff *skb = NULL; + void *fd_vaddr; + + fd_vaddr = dpaa2_iova_to_virt(ethsw->iommu_domain, addr); + dma_unmap_page(dev, addr, DPAA2_SWITCH_RX_BUF_SIZE, + DMA_FROM_DEVICE); + + skb = build_skb(fd_vaddr, DPAA2_SWITCH_RX_BUF_SIZE + + SKB_DATA_ALIGN(sizeof(struct skb_shared_info))); + if (unlikely(!skb)) { + dev_err(dev, "build_skb() failed\n"); + return NULL; + } + + skb_reserve(skb, fd_offset); + skb_put(skb, fd_length); + + ethsw->buf_count--; + + return skb; +} + +static void dpaa2_switch_tx_conf(struct dpaa2_switch_fq *fq, + const struct dpaa2_fd *fd) +{ + dpaa2_switch_free_fd(fq->ethsw, fd); +} + +static void dpaa2_switch_rx(struct dpaa2_switch_fq *fq, + const struct dpaa2_fd *fd) +{ + struct ethsw_core *ethsw = fq->ethsw; + struct ethsw_port_priv *port_priv; + struct net_device *netdev; + struct vlan_ethhdr *hdr; + struct sk_buff *skb; + u16 vlan_tci, vid; + int if_id, err; + + /* get switch ingress interface ID */ + if_id = upper_32_bits(dpaa2_fd_get_flc(fd)) & 0x0000FFFF; + + if (if_id >= ethsw->sw_attr.num_ifs) { + dev_err(ethsw->dev, "Frame received from unknown interface!\n"); + goto err_free_fd; + } + port_priv = ethsw->ports[if_id]; + netdev = port_priv->netdev; + + /* build the SKB based on the FD received */ + if (dpaa2_fd_get_format(fd) != dpaa2_fd_single) { + if (net_ratelimit()) { + netdev_err(netdev, "Received invalid frame format\n"); + goto err_free_fd; + } + } + + skb = dpaa2_switch_build_linear_skb(ethsw, fd); + if (unlikely(!skb)) + goto err_free_fd; + + skb_reset_mac_header(skb); + + /* Remove the VLAN header if the packet that we just received has a vid + * equal to the port PVIDs. Since the dpaa2-switch can operate only in + * VLAN-aware mode and no alterations are made on the packet when it's + * redirected/mirrored to the control interface, we are sure that there + * will always be a VLAN header present. + */ + hdr = vlan_eth_hdr(skb); + vid = ntohs(hdr->h_vlan_TCI) & VLAN_VID_MASK; + if (vid == port_priv->pvid) { + err = __skb_vlan_pop(skb, &vlan_tci); + if (err) { + dev_info(ethsw->dev, "__skb_vlan_pop() returned %d", err); + goto err_free_fd; + } + } + + skb->dev = netdev; + skb->protocol = eth_type_trans(skb, skb->dev); + + netif_receive_skb(skb); + + return; + +err_free_fd: + dpaa2_switch_free_fd(ethsw, fd); +} + +static void dpaa2_switch_detect_features(struct ethsw_core *ethsw) +{ + ethsw->features = 0; + + if (ethsw->major > 8 || (ethsw->major == 8 && ethsw->minor >= 6)) + ethsw->features |= ETHSW_FEATURE_MAC_ADDR; +} + +static int dpaa2_switch_setup_fqs(struct ethsw_core *ethsw) +{ + struct dpsw_ctrl_if_attr ctrl_if_attr; + struct device *dev = ethsw->dev; + int i = 0; + int err; + + err = dpsw_ctrl_if_get_attributes(ethsw->mc_io, 0, ethsw->dpsw_handle, + &ctrl_if_attr); + if (err) { + dev_err(dev, "dpsw_ctrl_if_get_attributes() = %d\n", err); + return err; + } + + ethsw->fq[i].fqid = ctrl_if_attr.rx_fqid; + ethsw->fq[i].ethsw = ethsw; + ethsw->fq[i++].type = DPSW_QUEUE_RX; + + ethsw->fq[i].fqid = ctrl_if_attr.tx_err_conf_fqid; + ethsw->fq[i].ethsw = ethsw; + ethsw->fq[i++].type = DPSW_QUEUE_TX_ERR_CONF; + + return 0; +} + +/* Free buffers acquired from the buffer pool or which were meant to + * be released in the pool + */ +static void dpaa2_switch_free_bufs(struct ethsw_core *ethsw, u64 *buf_array, int count) +{ + struct device *dev = ethsw->dev; + void *vaddr; + int i; + + for (i = 0; i < count; i++) { + vaddr = dpaa2_iova_to_virt(ethsw->iommu_domain, buf_array[i]); + dma_unmap_page(dev, buf_array[i], DPAA2_SWITCH_RX_BUF_SIZE, + DMA_FROM_DEVICE); + free_pages((unsigned long)vaddr, 0); + } +} + +/* Perform a single release command to add buffers + * to the specified buffer pool + */ +static int dpaa2_switch_add_bufs(struct ethsw_core *ethsw, u16 bpid) +{ + struct device *dev = ethsw->dev; + u64 buf_array[BUFS_PER_CMD]; + struct page *page; + int retries = 0; + dma_addr_t addr; + int err; + int i; + + for (i = 0; i < BUFS_PER_CMD; i++) { + /* Allocate one page for each Rx buffer. WRIOP sees + * the entire page except for a tailroom reserved for + * skb shared info + */ + page = dev_alloc_pages(0); + if (!page) { + dev_err(dev, "buffer allocation failed\n"); + goto err_alloc; + } + + addr = dma_map_page(dev, page, 0, DPAA2_SWITCH_RX_BUF_SIZE, + DMA_FROM_DEVICE); + if (dma_mapping_error(dev, addr)) { + dev_err(dev, "dma_map_single() failed\n"); + goto err_map; + } + buf_array[i] = addr; + } + +release_bufs: + /* In case the portal is busy, retry until successful or + * max retries hit. + */ + while ((err = dpaa2_io_service_release(NULL, bpid, + buf_array, i)) == -EBUSY) { + if (retries++ >= DPAA2_SWITCH_SWP_BUSY_RETRIES) + break; + + cpu_relax(); + } + + /* If release command failed, clean up and bail out. */ + if (err) { + dpaa2_switch_free_bufs(ethsw, buf_array, i); + return 0; + } + + return i; + +err_map: + __free_pages(page, 0); +err_alloc: + /* If we managed to allocate at least some buffers, + * release them to hardware + */ + if (i) + goto release_bufs; + + return 0; +} + +static int dpaa2_switch_refill_bp(struct ethsw_core *ethsw) +{ + int *count = ðsw->buf_count; + int new_count; + int err = 0; + + if (unlikely(*count < DPAA2_ETHSW_REFILL_THRESH)) { + do { + new_count = dpaa2_switch_add_bufs(ethsw, ethsw->bpid); + if (unlikely(!new_count)) { + /* Out of memory; abort for now, we'll + * try later on + */ + break; + } + *count += new_count; + } while (*count < DPAA2_ETHSW_NUM_BUFS); + + if (unlikely(*count < DPAA2_ETHSW_NUM_BUFS)) + err = -ENOMEM; + } + + return err; +} + +static int dpaa2_switch_seed_bp(struct ethsw_core *ethsw) +{ + int *count, i; + + for (i = 0; i < DPAA2_ETHSW_NUM_BUFS; i += BUFS_PER_CMD) { + count = ðsw->buf_count; + *count += dpaa2_switch_add_bufs(ethsw, ethsw->bpid); + + if (unlikely(*count < BUFS_PER_CMD)) + return -ENOMEM; + } + + return 0; +} + +static void dpaa2_switch_drain_bp(struct ethsw_core *ethsw) +{ + u64 buf_array[BUFS_PER_CMD]; + int ret; + + do { + ret = dpaa2_io_service_acquire(NULL, ethsw->bpid, + buf_array, BUFS_PER_CMD); + if (ret < 0) { + dev_err(ethsw->dev, + "dpaa2_io_service_acquire() = %d\n", ret); + return; + } + dpaa2_switch_free_bufs(ethsw, buf_array, ret); + + } while (ret); +} + +static int dpaa2_switch_setup_dpbp(struct ethsw_core *ethsw) +{ + struct dpsw_ctrl_if_pools_cfg dpsw_ctrl_if_pools_cfg = { 0 }; + struct device *dev = ethsw->dev; + struct fsl_mc_device *dpbp_dev; + struct dpbp_attr dpbp_attrs; + int err; + + err = fsl_mc_object_allocate(to_fsl_mc_device(dev), FSL_MC_POOL_DPBP, + &dpbp_dev); + if (err) { + if (err == -ENXIO) + err = -EPROBE_DEFER; + else + dev_err(dev, "DPBP device allocation failed\n"); + return err; + } + ethsw->dpbp_dev = dpbp_dev; + + err = dpbp_open(ethsw->mc_io, 0, dpbp_dev->obj_desc.id, + &dpbp_dev->mc_handle); + if (err) { + dev_err(dev, "dpbp_open() failed\n"); + goto err_open; + } + + err = dpbp_reset(ethsw->mc_io, 0, dpbp_dev->mc_handle); + if (err) { + dev_err(dev, "dpbp_reset() failed\n"); + goto err_reset; + } + + err = dpbp_enable(ethsw->mc_io, 0, dpbp_dev->mc_handle); + if (err) { + dev_err(dev, "dpbp_enable() failed\n"); + goto err_enable; + } + + err = dpbp_get_attributes(ethsw->mc_io, 0, dpbp_dev->mc_handle, + &dpbp_attrs); + if (err) { + dev_err(dev, "dpbp_get_attributes() failed\n"); + goto err_get_attr; + } + + dpsw_ctrl_if_pools_cfg.num_dpbp = 1; + dpsw_ctrl_if_pools_cfg.pools[0].dpbp_id = dpbp_attrs.id; + dpsw_ctrl_if_pools_cfg.pools[0].buffer_size = DPAA2_SWITCH_RX_BUF_SIZE; + dpsw_ctrl_if_pools_cfg.pools[0].backup_pool = 0; + + err = dpsw_ctrl_if_set_pools(ethsw->mc_io, 0, ethsw->dpsw_handle, + &dpsw_ctrl_if_pools_cfg); + if (err) { + dev_err(dev, "dpsw_ctrl_if_set_pools() failed\n"); + goto err_get_attr; + } + ethsw->bpid = dpbp_attrs.id; + + return 0; + +err_get_attr: + dpbp_disable(ethsw->mc_io, 0, dpbp_dev->mc_handle); +err_enable: +err_reset: + dpbp_close(ethsw->mc_io, 0, dpbp_dev->mc_handle); +err_open: + fsl_mc_object_free(dpbp_dev); + return err; +} + +static void dpaa2_switch_free_dpbp(struct ethsw_core *ethsw) +{ + dpbp_disable(ethsw->mc_io, 0, ethsw->dpbp_dev->mc_handle); + dpbp_close(ethsw->mc_io, 0, ethsw->dpbp_dev->mc_handle); + fsl_mc_object_free(ethsw->dpbp_dev); +} + +static int dpaa2_switch_alloc_rings(struct ethsw_core *ethsw) +{ + int i; + + for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++) { + ethsw->fq[i].store = + dpaa2_io_store_create(DPAA2_SWITCH_STORE_SIZE, + ethsw->dev); + if (!ethsw->fq[i].store) { + dev_err(ethsw->dev, "dpaa2_io_store_create failed\n"); + while (--i >= 0) + dpaa2_io_store_destroy(ethsw->fq[i].store); + return -ENOMEM; + } + } + + return 0; +} + +static void dpaa2_switch_destroy_rings(struct ethsw_core *ethsw) +{ + int i; + + for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++) + dpaa2_io_store_destroy(ethsw->fq[i].store); +} + +static int dpaa2_switch_pull_fq(struct dpaa2_switch_fq *fq) +{ + int err, retries = 0; + + /* Try to pull from the FQ while the portal is busy and we didn't hit + * the maximum number fo retries + */ + do { + err = dpaa2_io_service_pull_fq(NULL, fq->fqid, fq->store); + cpu_relax(); + } while (err == -EBUSY && retries++ < DPAA2_SWITCH_SWP_BUSY_RETRIES); + + if (unlikely(err)) + dev_err(fq->ethsw->dev, "dpaa2_io_service_pull err %d", err); + + return err; +} + +/* Consume all frames pull-dequeued into the store */ +static int dpaa2_switch_store_consume(struct dpaa2_switch_fq *fq) +{ + struct ethsw_core *ethsw = fq->ethsw; + int cleaned = 0, is_last; + struct dpaa2_dq *dq; + int retries = 0; + + do { + /* Get the next available FD from the store */ + dq = dpaa2_io_store_next(fq->store, &is_last); + if (unlikely(!dq)) { + if (retries++ >= DPAA2_SWITCH_SWP_BUSY_RETRIES) { + dev_err_once(ethsw->dev, + "No valid dequeue response\n"); + return -ETIMEDOUT; + } + continue; + } + + if (fq->type == DPSW_QUEUE_RX) + dpaa2_switch_rx(fq, dpaa2_dq_fd(dq)); + else + dpaa2_switch_tx_conf(fq, dpaa2_dq_fd(dq)); + cleaned++; + + } while (!is_last); + + return cleaned; +} + +/* NAPI poll routine */ +static int dpaa2_switch_poll(struct napi_struct *napi, int budget) +{ + int err, cleaned = 0, store_cleaned, work_done; + struct dpaa2_switch_fq *fq; + int retries = 0; + + fq = container_of(napi, struct dpaa2_switch_fq, napi); + + do { + err = dpaa2_switch_pull_fq(fq); + if (unlikely(err)) + break; + + /* Refill pool if appropriate */ + dpaa2_switch_refill_bp(fq->ethsw); + + store_cleaned = dpaa2_switch_store_consume(fq); + cleaned += store_cleaned; + + if (cleaned >= budget) { + work_done = budget; + goto out; + } + + } while (store_cleaned); + + /* We didn't consume the entire budget, so finish napi and re-enable + * data availability notifications + */ + napi_complete_done(napi, cleaned); + do { + err = dpaa2_io_service_rearm(NULL, &fq->nctx); + cpu_relax(); + } while (err == -EBUSY && retries++ < DPAA2_SWITCH_SWP_BUSY_RETRIES); + + work_done = max(cleaned, 1); +out: + + return work_done; +} + +static void dpaa2_switch_fqdan_cb(struct dpaa2_io_notification_ctx *nctx) +{ + struct dpaa2_switch_fq *fq; + + fq = container_of(nctx, struct dpaa2_switch_fq, nctx); + + napi_schedule(&fq->napi); +} + +static int dpaa2_switch_setup_dpio(struct ethsw_core *ethsw) +{ + struct dpsw_ctrl_if_queue_cfg queue_cfg; + struct dpaa2_io_notification_ctx *nctx; + int err, i, j; + + for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++) { + nctx = ðsw->fq[i].nctx; + + /* Register a new software context for the FQID. + * By using NULL as the first parameter, we specify that we do + * not care on which cpu are interrupts received for this queue + */ + nctx->is_cdan = 0; + nctx->id = ethsw->fq[i].fqid; + nctx->desired_cpu = DPAA2_IO_ANY_CPU; + nctx->cb = dpaa2_switch_fqdan_cb; + err = dpaa2_io_service_register(NULL, nctx, ethsw->dev); + if (err) { + err = -EPROBE_DEFER; + goto err_register; + } + + queue_cfg.options = DPSW_CTRL_IF_QUEUE_OPT_DEST | + DPSW_CTRL_IF_QUEUE_OPT_USER_CTX; + queue_cfg.dest_cfg.dest_type = DPSW_CTRL_IF_DEST_DPIO; + queue_cfg.dest_cfg.dest_id = nctx->dpio_id; + queue_cfg.dest_cfg.priority = 0; + queue_cfg.user_ctx = nctx->qman64; + + err = dpsw_ctrl_if_set_queue(ethsw->mc_io, 0, + ethsw->dpsw_handle, + ethsw->fq[i].type, + &queue_cfg); + if (err) + goto err_set_queue; + } + + return 0; + +err_set_queue: + dpaa2_io_service_deregister(NULL, nctx, ethsw->dev); +err_register: + for (j = 0; j < i; j++) + dpaa2_io_service_deregister(NULL, ðsw->fq[j].nctx, + ethsw->dev); + + return err; +} + +static void dpaa2_switch_free_dpio(struct ethsw_core *ethsw) +{ + int i; + + for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++) + dpaa2_io_service_deregister(NULL, ðsw->fq[i].nctx, + ethsw->dev); +} + +static int dpaa2_switch_ctrl_if_setup(struct ethsw_core *ethsw) +{ + int err; + + /* setup FQs for Rx and Tx Conf */ + err = dpaa2_switch_setup_fqs(ethsw); + if (err) + return err; + + /* setup the buffer pool needed on the Rx path */ + err = dpaa2_switch_setup_dpbp(ethsw); + if (err) + return err; + + err = dpaa2_switch_seed_bp(ethsw); + if (err) + goto err_free_dpbp; + + err = dpaa2_switch_alloc_rings(ethsw); + if (err) + goto err_drain_dpbp; + + err = dpaa2_switch_setup_dpio(ethsw); + if (err) + goto err_destroy_rings; + + err = dpsw_ctrl_if_enable(ethsw->mc_io, 0, ethsw->dpsw_handle); + if (err) { + dev_err(ethsw->dev, "dpsw_ctrl_if_enable err %d\n", err); + goto err_deregister_dpio; + } + + return 0; + +err_deregister_dpio: + dpaa2_switch_free_dpio(ethsw); +err_destroy_rings: + dpaa2_switch_destroy_rings(ethsw); +err_drain_dpbp: + dpaa2_switch_drain_bp(ethsw); +err_free_dpbp: + dpaa2_switch_free_dpbp(ethsw); + + return err; +} + +static int dpaa2_switch_init(struct fsl_mc_device *sw_dev) +{ + struct device *dev = &sw_dev->dev; + struct ethsw_core *ethsw = dev_get_drvdata(dev); + struct dpsw_vlan_if_cfg vcfg = {0}; + struct dpsw_tci_cfg tci_cfg = {0}; + struct dpsw_stp_cfg stp_cfg; + int err; + u16 i; + + ethsw->dev_id = sw_dev->obj_desc.id; + + err = dpsw_open(ethsw->mc_io, 0, ethsw->dev_id, ðsw->dpsw_handle); + if (err) { + dev_err(dev, "dpsw_open err %d\n", err); + return err; + } + + err = dpsw_get_attributes(ethsw->mc_io, 0, ethsw->dpsw_handle, + ðsw->sw_attr); + if (err) { + dev_err(dev, "dpsw_get_attributes err %d\n", err); + goto err_close; + } + + err = dpsw_get_api_version(ethsw->mc_io, 0, + ðsw->major, + ðsw->minor); + if (err) { + dev_err(dev, "dpsw_get_api_version err %d\n", err); + goto err_close; + } + + /* Minimum supported DPSW version check */ + if (ethsw->major < DPSW_MIN_VER_MAJOR || + (ethsw->major == DPSW_MIN_VER_MAJOR && + ethsw->minor < DPSW_MIN_VER_MINOR)) { + dev_err(dev, "DPSW version %d:%d not supported. Use firmware 10.28.0 or greater.\n", + ethsw->major, ethsw->minor); + err = -EOPNOTSUPP; + goto err_close; + } + + if (!dpaa2_switch_supports_cpu_traffic(ethsw)) { + err = -EOPNOTSUPP; + goto err_close; + } + + dpaa2_switch_detect_features(ethsw); + + err = dpsw_reset(ethsw->mc_io, 0, ethsw->dpsw_handle); + if (err) { + dev_err(dev, "dpsw_reset err %d\n", err); + goto err_close; + } + + stp_cfg.vlan_id = DEFAULT_VLAN_ID; + stp_cfg.state = DPSW_STP_STATE_FORWARDING; + + for (i = 0; i < ethsw->sw_attr.num_ifs; i++) { + err = dpsw_if_disable(ethsw->mc_io, 0, ethsw->dpsw_handle, i); + if (err) { + dev_err(dev, "dpsw_if_disable err %d\n", err); + goto err_close; + } + + err = dpsw_if_set_stp(ethsw->mc_io, 0, ethsw->dpsw_handle, i, + &stp_cfg); + if (err) { + dev_err(dev, "dpsw_if_set_stp err %d for port %d\n", + err, i); + goto err_close; + } + + /* Switch starts with all ports configured to VLAN 1. Need to + * remove this setting to allow configuration at bridge join + */ + vcfg.num_ifs = 1; + vcfg.if_id[0] = i; + err = dpsw_vlan_remove_if_untagged(ethsw->mc_io, 0, ethsw->dpsw_handle, + DEFAULT_VLAN_ID, &vcfg); + if (err) { + dev_err(dev, "dpsw_vlan_remove_if_untagged err %d\n", + err); + goto err_close; + } + + tci_cfg.vlan_id = 4095; + err = dpsw_if_set_tci(ethsw->mc_io, 0, ethsw->dpsw_handle, i, &tci_cfg); + if (err) { + dev_err(dev, "dpsw_if_set_tci err %d\n", err); + goto err_close; + } + + err = dpsw_vlan_remove_if(ethsw->mc_io, 0, ethsw->dpsw_handle, + DEFAULT_VLAN_ID, &vcfg); + if (err) { + dev_err(dev, "dpsw_vlan_remove_if err %d\n", err); + goto err_close; + } + } + + err = dpsw_vlan_remove(ethsw->mc_io, 0, ethsw->dpsw_handle, DEFAULT_VLAN_ID); + if (err) { + dev_err(dev, "dpsw_vlan_remove err %d\n", err); + goto err_close; + } + + ethsw->workqueue = alloc_ordered_workqueue("%s_%d_ordered", + WQ_MEM_RECLAIM, "ethsw", + ethsw->sw_attr.id); + if (!ethsw->workqueue) { + err = -ENOMEM; + goto err_close; + } + + err = dpsw_fdb_remove(ethsw->mc_io, 0, ethsw->dpsw_handle, 0); + if (err) + goto err_destroy_ordered_workqueue; + + err = dpaa2_switch_ctrl_if_setup(ethsw); + if (err) + goto err_destroy_ordered_workqueue; + + return 0; + +err_destroy_ordered_workqueue: + destroy_workqueue(ethsw->workqueue); + +err_close: + dpsw_close(ethsw->mc_io, 0, ethsw->dpsw_handle); + return err; +} + +static int dpaa2_switch_port_init(struct ethsw_port_priv *port_priv, u16 port) +{ + struct switchdev_obj_port_vlan vlan = { + .obj.id = SWITCHDEV_OBJ_ID_PORT_VLAN, + .vid = DEFAULT_VLAN_ID, + .flags = BRIDGE_VLAN_INFO_UNTAGGED | BRIDGE_VLAN_INFO_PVID, + }; + struct net_device *netdev = port_priv->netdev; + struct ethsw_core *ethsw = port_priv->ethsw_data; + struct dpsw_fdb_cfg fdb_cfg = {0}; + struct dpaa2_switch_fdb *fdb; + struct dpsw_if_attr dpsw_if_attr; + u16 fdb_id; + int err; + + /* Get the Tx queue for this specific port */ + err = dpsw_if_get_attributes(ethsw->mc_io, 0, ethsw->dpsw_handle, + port_priv->idx, &dpsw_if_attr); + if (err) { + netdev_err(netdev, "dpsw_if_get_attributes err %d\n", err); + return err; + } + port_priv->tx_qdid = dpsw_if_attr.qdid; + + /* Create a FDB table for this particular switch port */ + fdb_cfg.num_fdb_entries = ethsw->sw_attr.max_fdb_entries / ethsw->sw_attr.num_ifs; + err = dpsw_fdb_add(ethsw->mc_io, 0, ethsw->dpsw_handle, + &fdb_id, &fdb_cfg); + if (err) { + netdev_err(netdev, "dpsw_fdb_add err %d\n", err); + return err; + } + + /* Find an unused dpaa2_switch_fdb structure and use it */ + fdb = dpaa2_switch_fdb_get_unused(ethsw); + fdb->fdb_id = fdb_id; + fdb->in_use = true; + fdb->bridge_dev = NULL; + port_priv->fdb = fdb; + + /* We need to add VLAN 1 as the PVID on this port until it is under a + * bridge since the DPAA2 switch is not able to handle the traffic in a + * VLAN unaware fashion + */ + err = dpaa2_switch_port_vlans_add(netdev, &vlan); + if (err) + return err; + + /* Setup the egress flooding domains (broadcast, unknown unicast */ + err = dpaa2_switch_fdb_set_egress_flood(ethsw, port_priv->fdb->fdb_id); + if (err) + return err; + + return err; +} + +static void dpaa2_switch_takedown(struct fsl_mc_device *sw_dev) +{ + struct device *dev = &sw_dev->dev; + struct ethsw_core *ethsw = dev_get_drvdata(dev); + int err; + + err = dpsw_close(ethsw->mc_io, 0, ethsw->dpsw_handle); + if (err) + dev_warn(dev, "dpsw_close err %d\n", err); +} + +static void dpaa2_switch_ctrl_if_teardown(struct ethsw_core *ethsw) +{ + dpsw_ctrl_if_disable(ethsw->mc_io, 0, ethsw->dpsw_handle); + dpaa2_switch_free_dpio(ethsw); + dpaa2_switch_destroy_rings(ethsw); + dpaa2_switch_drain_bp(ethsw); + dpaa2_switch_free_dpbp(ethsw); +} + +static int dpaa2_switch_remove(struct fsl_mc_device *sw_dev) +{ + struct ethsw_port_priv *port_priv; + struct ethsw_core *ethsw; + struct device *dev; + int i; + + dev = &sw_dev->dev; + ethsw = dev_get_drvdata(dev); + + dpaa2_switch_ctrl_if_teardown(ethsw); + + dpaa2_switch_teardown_irqs(sw_dev); + + dpsw_disable(ethsw->mc_io, 0, ethsw->dpsw_handle); + + for (i = 0; i < ethsw->sw_attr.num_ifs; i++) { + port_priv = ethsw->ports[i]; + unregister_netdev(port_priv->netdev); + free_netdev(port_priv->netdev); + } + + kfree(ethsw->fdbs); + kfree(ethsw->ports); + + dpaa2_switch_takedown(sw_dev); + + destroy_workqueue(ethsw->workqueue); + + fsl_mc_portal_free(ethsw->mc_io); + + kfree(ethsw); + + dev_set_drvdata(dev, NULL); + + return 0; +} + +static int dpaa2_switch_probe_port(struct ethsw_core *ethsw, + u16 port_idx) +{ + struct ethsw_port_priv *port_priv; + struct device *dev = ethsw->dev; + struct net_device *port_netdev; + int err; + + port_netdev = alloc_etherdev(sizeof(struct ethsw_port_priv)); + if (!port_netdev) { + dev_err(dev, "alloc_etherdev error\n"); + return -ENOMEM; + } + + port_priv = netdev_priv(port_netdev); + port_priv->netdev = port_netdev; + port_priv->ethsw_data = ethsw; + + port_priv->idx = port_idx; + port_priv->stp_state = BR_STATE_FORWARDING; + + SET_NETDEV_DEV(port_netdev, dev); + port_netdev->netdev_ops = &dpaa2_switch_port_ops; + port_netdev->ethtool_ops = &dpaa2_switch_port_ethtool_ops; + + port_netdev->needed_headroom = DPAA2_SWITCH_NEEDED_HEADROOM; + + /* Set MTU limits */ + port_netdev->min_mtu = ETH_MIN_MTU; + port_netdev->max_mtu = ETHSW_MAX_FRAME_LENGTH; + + /* Populate the private port structure so that later calls to + * dpaa2_switch_port_init() can use it. + */ + ethsw->ports[port_idx] = port_priv; + + /* The DPAA2 switch's ingress path depends on the VLAN table, + * thus we are not able to disable VLAN filtering. + */ + port_netdev->features = NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_STAG_FILTER; + + err = dpaa2_switch_port_init(port_priv, port_idx); + if (err) + goto err_port_probe; + + err = dpaa2_switch_port_set_mac_addr(port_priv); + if (err) + goto err_port_probe; + + return 0; + +err_port_probe: + free_netdev(port_netdev); + ethsw->ports[port_idx] = NULL; + + return err; +} + +static int dpaa2_switch_probe(struct fsl_mc_device *sw_dev) +{ + struct device *dev = &sw_dev->dev; + struct ethsw_core *ethsw; + int i, err; + + /* Allocate switch core*/ + ethsw = kzalloc(sizeof(*ethsw), GFP_KERNEL); + + if (!ethsw) + return -ENOMEM; + + ethsw->dev = dev; + ethsw->iommu_domain = iommu_get_domain_for_dev(dev); + dev_set_drvdata(dev, ethsw); + + err = fsl_mc_portal_allocate(sw_dev, FSL_MC_IO_ATOMIC_CONTEXT_PORTAL, + ðsw->mc_io); + if (err) { + if (err == -ENXIO) + err = -EPROBE_DEFER; + else + dev_err(dev, "fsl_mc_portal_allocate err %d\n", err); + goto err_free_drvdata; + } + + err = dpaa2_switch_init(sw_dev); + if (err) + goto err_free_cmdport; + + ethsw->ports = kcalloc(ethsw->sw_attr.num_ifs, sizeof(*ethsw->ports), + GFP_KERNEL); + if (!(ethsw->ports)) { + err = -ENOMEM; + goto err_takedown; + } + + ethsw->fdbs = kcalloc(ethsw->sw_attr.num_ifs, sizeof(*ethsw->fdbs), + GFP_KERNEL); + if (!ethsw->fdbs) { + err = -ENOMEM; + goto err_free_ports; + } + + for (i = 0; i < ethsw->sw_attr.num_ifs; i++) { + err = dpaa2_switch_probe_port(ethsw, i); + if (err) + goto err_free_netdev; + } + + /* Add a NAPI instance for each of the Rx queues. The first port's + * net_device will be associated with the instances since we do not have + * different queues for each switch ports. + */ + for (i = 0; i < DPAA2_SWITCH_RX_NUM_FQS; i++) + netif_napi_add(ethsw->ports[0]->netdev, + ðsw->fq[i].napi, dpaa2_switch_poll, + NAPI_POLL_WEIGHT); + + err = dpsw_enable(ethsw->mc_io, 0, ethsw->dpsw_handle); + if (err) { + dev_err(ethsw->dev, "dpsw_enable err %d\n", err); + goto err_free_netdev; + } + + /* Setup IRQs */ + err = dpaa2_switch_setup_irqs(sw_dev); + if (err) + goto err_stop; + + /* Register the netdev only when the entire setup is done and the + * switch port interfaces are ready to receive traffic + */ + for (i = 0; i < ethsw->sw_attr.num_ifs; i++) { + err = register_netdev(ethsw->ports[i]->netdev); + if (err < 0) { + dev_err(dev, "register_netdev error %d\n", err); + goto err_unregister_ports; + } + } + + return 0; + +err_unregister_ports: + for (i--; i >= 0; i--) + unregister_netdev(ethsw->ports[i]->netdev); + dpaa2_switch_teardown_irqs(sw_dev); +err_stop: + dpsw_disable(ethsw->mc_io, 0, ethsw->dpsw_handle); +err_free_netdev: + for (i--; i >= 0; i--) + free_netdev(ethsw->ports[i]->netdev); + kfree(ethsw->fdbs); +err_free_ports: + kfree(ethsw->ports); + +err_takedown: + dpaa2_switch_takedown(sw_dev); + +err_free_cmdport: + fsl_mc_portal_free(ethsw->mc_io); + +err_free_drvdata: + kfree(ethsw); + dev_set_drvdata(dev, NULL); + + return err; +} + +static const struct fsl_mc_device_id dpaa2_switch_match_id_table[] = { + { + .vendor = FSL_MC_VENDOR_FREESCALE, + .obj_type = "dpsw", + }, + { .vendor = 0x0 } +}; +MODULE_DEVICE_TABLE(fslmc, dpaa2_switch_match_id_table); + +static struct fsl_mc_driver dpaa2_switch_drv = { + .driver = { + .name = KBUILD_MODNAME, + .owner = THIS_MODULE, + }, + .probe = dpaa2_switch_probe, + .remove = dpaa2_switch_remove, + .match_id_table = dpaa2_switch_match_id_table +}; + +static struct notifier_block dpaa2_switch_port_nb __read_mostly = { + .notifier_call = dpaa2_switch_port_netdevice_event, +}; + +static struct notifier_block dpaa2_switch_port_switchdev_nb = { + .notifier_call = dpaa2_switch_port_event, +}; + +static struct notifier_block dpaa2_switch_port_switchdev_blocking_nb = { + .notifier_call = dpaa2_switch_port_blocking_event, +}; + +static int dpaa2_switch_register_notifiers(void) +{ + int err; + + err = register_netdevice_notifier(&dpaa2_switch_port_nb); + if (err) { + pr_err("dpaa2-switch: failed to register net_device notifier (%d)\n", err); + return err; + } + + err = register_switchdev_notifier(&dpaa2_switch_port_switchdev_nb); + if (err) { + pr_err("dpaa2-switch: failed to register switchdev notifier (%d)\n", err); + goto err_switchdev_nb; + } + + err = register_switchdev_blocking_notifier(&dpaa2_switch_port_switchdev_blocking_nb); + if (err) { + pr_err("dpaa2-switch: failed to register switchdev blocking notifier (%d)\n", err); + goto err_switchdev_blocking_nb; + } + + return 0; + +err_switchdev_blocking_nb: + unregister_switchdev_notifier(&dpaa2_switch_port_switchdev_nb); +err_switchdev_nb: + unregister_netdevice_notifier(&dpaa2_switch_port_nb); + + return err; +} + +static void dpaa2_switch_unregister_notifiers(void) +{ + int err; + + err = unregister_switchdev_blocking_notifier(&dpaa2_switch_port_switchdev_blocking_nb); + if (err) + pr_err("dpaa2-switch: failed to unregister switchdev blocking notifier (%d)\n", + err); + + err = unregister_switchdev_notifier(&dpaa2_switch_port_switchdev_nb); + if (err) + pr_err("dpaa2-switch: failed to unregister switchdev notifier (%d)\n", err); + + err = unregister_netdevice_notifier(&dpaa2_switch_port_nb); + if (err) + pr_err("dpaa2-switch: failed to unregister net_device notifier (%d)\n", err); +} + +static int __init dpaa2_switch_driver_init(void) +{ + int err; + + err = fsl_mc_driver_register(&dpaa2_switch_drv); + if (err) + return err; + + err = dpaa2_switch_register_notifiers(); + if (err) { + fsl_mc_driver_unregister(&dpaa2_switch_drv); + return err; + } + + return 0; +} + +static void __exit dpaa2_switch_driver_exit(void) +{ + dpaa2_switch_unregister_notifiers(); + fsl_mc_driver_unregister(&dpaa2_switch_drv); +} + +module_init(dpaa2_switch_driver_init); +module_exit(dpaa2_switch_driver_exit); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("DPAA2 Ethernet Switch Driver"); diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.h new file mode 100644 index 000000000000..933563064015 --- /dev/null +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-switch.h @@ -0,0 +1,178 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * DPAA2 Ethernet Switch declarations + * + * Copyright 2014-2016 Freescale Semiconductor Inc. + * Copyright 2017-2021 NXP + * + */ + +#ifndef __ETHSW_H +#define __ETHSW_H + +#include <linux/netdevice.h> +#include <linux/etherdevice.h> +#include <linux/rtnetlink.h> +#include <linux/if_vlan.h> +#include <uapi/linux/if_bridge.h> +#include <net/switchdev.h> +#include <linux/if_bridge.h> +#include <linux/fsl/mc.h> +#include <soc/fsl/dpaa2-io.h> + +#include "dpsw.h" + +/* Number of IRQs supported */ +#define DPSW_IRQ_NUM 2 + +/* Port is member of VLAN */ +#define ETHSW_VLAN_MEMBER 1 +/* VLAN to be treated as untagged on egress */ +#define ETHSW_VLAN_UNTAGGED 2 +/* Untagged frames will be assigned to this VLAN */ +#define ETHSW_VLAN_PVID 4 +/* VLAN configured on the switch */ +#define ETHSW_VLAN_GLOBAL 8 + +/* Maximum Frame Length supported by HW (currently 10k) */ +#define DPAA2_MFL (10 * 1024) +#define ETHSW_MAX_FRAME_LENGTH (DPAA2_MFL - VLAN_ETH_HLEN - ETH_FCS_LEN) +#define ETHSW_L2_MAX_FRM(mtu) ((mtu) + VLAN_ETH_HLEN + ETH_FCS_LEN) + +#define ETHSW_FEATURE_MAC_ADDR BIT(0) + +/* Number of receive queues (one RX and one TX_CONF) */ +#define DPAA2_SWITCH_RX_NUM_FQS 2 + +/* Hardware requires alignment for ingress/egress buffer addresses */ +#define DPAA2_SWITCH_RX_BUF_RAW_SIZE PAGE_SIZE +#define DPAA2_SWITCH_RX_BUF_TAILROOM \ + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)) +#define DPAA2_SWITCH_RX_BUF_SIZE \ + (DPAA2_SWITCH_RX_BUF_RAW_SIZE - DPAA2_SWITCH_RX_BUF_TAILROOM) + +#define DPAA2_SWITCH_STORE_SIZE 16 + +/* Buffer management */ +#define BUFS_PER_CMD 7 +#define DPAA2_ETHSW_NUM_BUFS (1024 * BUFS_PER_CMD) +#define DPAA2_ETHSW_REFILL_THRESH (DPAA2_ETHSW_NUM_BUFS * 5 / 6) + +/* Number of times to retry DPIO portal operations while waiting + * for portal to finish executing current command and become + * available. We want to avoid being stuck in a while loop in case + * hardware becomes unresponsive, but not give up too easily if + * the portal really is busy for valid reasons + */ +#define DPAA2_SWITCH_SWP_BUSY_RETRIES 1000 + +/* Hardware annotation buffer size */ +#define DPAA2_SWITCH_HWA_SIZE 64 +/* Software annotation buffer size */ +#define DPAA2_SWITCH_SWA_SIZE 64 + +#define DPAA2_SWITCH_TX_BUF_ALIGN 64 + +#define DPAA2_SWITCH_TX_DATA_OFFSET \ + (DPAA2_SWITCH_HWA_SIZE + DPAA2_SWITCH_SWA_SIZE) + +#define DPAA2_SWITCH_NEEDED_HEADROOM \ + (DPAA2_SWITCH_TX_DATA_OFFSET + DPAA2_SWITCH_TX_BUF_ALIGN) + +extern const struct ethtool_ops dpaa2_switch_port_ethtool_ops; + +struct ethsw_core; + +struct dpaa2_switch_fq { + struct ethsw_core *ethsw; + enum dpsw_queue_type type; + struct dpaa2_io_store *store; + struct dpaa2_io_notification_ctx nctx; + struct napi_struct napi; + u32 fqid; +}; + +struct dpaa2_switch_fdb { + struct net_device *bridge_dev; + u16 fdb_id; + bool in_use; +}; + +/* Per port private data */ +struct ethsw_port_priv { + struct net_device *netdev; + u16 idx; + struct ethsw_core *ethsw_data; + u8 link_state; + u8 stp_state; + bool flood; + + u8 vlans[VLAN_VID_MASK + 1]; + u16 pvid; + u16 tx_qdid; + + struct dpaa2_switch_fdb *fdb; +}; + +/* Switch data */ +struct ethsw_core { + struct device *dev; + struct fsl_mc_io *mc_io; + u16 dpsw_handle; + struct dpsw_attr sw_attr; + u16 major, minor; + unsigned long features; + int dev_id; + struct ethsw_port_priv **ports; + struct iommu_domain *iommu_domain; + + u8 vlans[VLAN_VID_MASK + 1]; + + struct workqueue_struct *workqueue; + + struct dpaa2_switch_fq fq[DPAA2_SWITCH_RX_NUM_FQS]; + struct fsl_mc_device *dpbp_dev; + int buf_count; + u16 bpid; + int napi_users; + + struct dpaa2_switch_fdb *fdbs; +}; + +static inline bool dpaa2_switch_supports_cpu_traffic(struct ethsw_core *ethsw) +{ + if (ethsw->sw_attr.options & DPSW_OPT_CTRL_IF_DIS) { + dev_err(ethsw->dev, "Control Interface is disabled, cannot probe\n"); + return false; + } + + if (ethsw->sw_attr.flooding_cfg != DPSW_FLOODING_PER_FDB) { + dev_err(ethsw->dev, "Flooding domain is not per FDB, cannot probe\n"); + return false; + } + + if (ethsw->sw_attr.broadcast_cfg != DPSW_BROADCAST_PER_FDB) { + dev_err(ethsw->dev, "Broadcast domain is not per FDB, cannot probe\n"); + return false; + } + + if (ethsw->sw_attr.max_fdbs < ethsw->sw_attr.num_ifs) { + dev_err(ethsw->dev, "The number of FDBs is lower than the number of ports, cannot probe\n"); + return false; + } + + return true; +} + +bool dpaa2_switch_port_dev_check(const struct net_device *netdev); + +int dpaa2_switch_port_vlans_add(struct net_device *netdev, + const struct switchdev_obj_port_vlan *vlan); + +int dpaa2_switch_port_vlans_del(struct net_device *netdev, + const struct switchdev_obj_port_vlan *vlan); + +typedef int dpaa2_switch_fdb_cb_t(struct ethsw_port_priv *port_priv, + struct fdb_dump_entry *fdb_entry, + void *data); +#endif /* __ETHSW_H */ diff --git a/drivers/net/ethernet/freescale/dpaa2/dpsw-cmd.h b/drivers/net/ethernet/freescale/dpaa2/dpsw-cmd.h new file mode 100644 index 000000000000..eb620e832412 --- /dev/null +++ b/drivers/net/ethernet/freescale/dpaa2/dpsw-cmd.h @@ -0,0 +1,458 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2014-2016 Freescale Semiconductor Inc. + * Copyright 2017-2021 NXP + * + */ + +#ifndef __FSL_DPSW_CMD_H +#define __FSL_DPSW_CMD_H + +#include "dpsw.h" + +/* DPSW Version */ +#define DPSW_VER_MAJOR 8 +#define DPSW_VER_MINOR 9 + +#define DPSW_CMD_BASE_VERSION 1 +#define DPSW_CMD_VERSION_2 2 +#define DPSW_CMD_ID_OFFSET 4 + +#define DPSW_CMD_ID(id) (((id) << DPSW_CMD_ID_OFFSET) | DPSW_CMD_BASE_VERSION) +#define DPSW_CMD_V2(id) (((id) << DPSW_CMD_ID_OFFSET) | DPSW_CMD_VERSION_2) + +/* Command IDs */ +#define DPSW_CMDID_CLOSE DPSW_CMD_ID(0x800) +#define DPSW_CMDID_OPEN DPSW_CMD_ID(0x802) + +#define DPSW_CMDID_GET_API_VERSION DPSW_CMD_ID(0xa02) + +#define DPSW_CMDID_ENABLE DPSW_CMD_ID(0x002) +#define DPSW_CMDID_DISABLE DPSW_CMD_ID(0x003) +#define DPSW_CMDID_GET_ATTR DPSW_CMD_V2(0x004) +#define DPSW_CMDID_RESET DPSW_CMD_ID(0x005) + +#define DPSW_CMDID_SET_IRQ_ENABLE DPSW_CMD_ID(0x012) + +#define DPSW_CMDID_SET_IRQ_MASK DPSW_CMD_ID(0x014) + +#define DPSW_CMDID_GET_IRQ_STATUS DPSW_CMD_ID(0x016) +#define DPSW_CMDID_CLEAR_IRQ_STATUS DPSW_CMD_ID(0x017) + +#define DPSW_CMDID_IF_SET_TCI DPSW_CMD_ID(0x030) +#define DPSW_CMDID_IF_SET_STP DPSW_CMD_ID(0x031) + +#define DPSW_CMDID_IF_GET_COUNTER DPSW_CMD_V2(0x034) + +#define DPSW_CMDID_IF_ENABLE DPSW_CMD_ID(0x03D) +#define DPSW_CMDID_IF_DISABLE DPSW_CMD_ID(0x03E) + +#define DPSW_CMDID_IF_GET_ATTR DPSW_CMD_ID(0x042) + +#define DPSW_CMDID_IF_SET_MAX_FRAME_LENGTH DPSW_CMD_ID(0x044) + +#define DPSW_CMDID_IF_GET_LINK_STATE DPSW_CMD_ID(0x046) + +#define DPSW_CMDID_IF_GET_TCI DPSW_CMD_ID(0x04A) + +#define DPSW_CMDID_IF_SET_LINK_CFG DPSW_CMD_ID(0x04C) + +#define DPSW_CMDID_VLAN_ADD DPSW_CMD_ID(0x060) +#define DPSW_CMDID_VLAN_ADD_IF DPSW_CMD_V2(0x061) +#define DPSW_CMDID_VLAN_ADD_IF_UNTAGGED DPSW_CMD_ID(0x062) + +#define DPSW_CMDID_VLAN_REMOVE_IF DPSW_CMD_ID(0x064) +#define DPSW_CMDID_VLAN_REMOVE_IF_UNTAGGED DPSW_CMD_ID(0x065) +#define DPSW_CMDID_VLAN_REMOVE_IF_FLOODING DPSW_CMD_ID(0x066) +#define DPSW_CMDID_VLAN_REMOVE DPSW_CMD_ID(0x067) + +#define DPSW_CMDID_FDB_ADD DPSW_CMD_ID(0x082) +#define DPSW_CMDID_FDB_REMOVE DPSW_CMD_ID(0x083) +#define DPSW_CMDID_FDB_ADD_UNICAST DPSW_CMD_ID(0x084) +#define DPSW_CMDID_FDB_REMOVE_UNICAST DPSW_CMD_ID(0x085) +#define DPSW_CMDID_FDB_ADD_MULTICAST DPSW_CMD_ID(0x086) +#define DPSW_CMDID_FDB_REMOVE_MULTICAST DPSW_CMD_ID(0x087) +#define DPSW_CMDID_FDB_DUMP DPSW_CMD_ID(0x08A) + +#define DPSW_CMDID_IF_GET_PORT_MAC_ADDR DPSW_CMD_ID(0x0A7) +#define DPSW_CMDID_IF_GET_PRIMARY_MAC_ADDR DPSW_CMD_ID(0x0A8) +#define DPSW_CMDID_IF_SET_PRIMARY_MAC_ADDR DPSW_CMD_ID(0x0A9) + +#define DPSW_CMDID_CTRL_IF_GET_ATTR DPSW_CMD_ID(0x0A0) +#define DPSW_CMDID_CTRL_IF_SET_POOLS DPSW_CMD_ID(0x0A1) +#define DPSW_CMDID_CTRL_IF_ENABLE DPSW_CMD_ID(0x0A2) +#define DPSW_CMDID_CTRL_IF_DISABLE DPSW_CMD_ID(0x0A3) +#define DPSW_CMDID_CTRL_IF_SET_QUEUE DPSW_CMD_ID(0x0A6) + +#define DPSW_CMDID_SET_EGRESS_FLOOD DPSW_CMD_ID(0x0AC) + +/* Macros for accessing command fields smaller than 1byte */ +#define DPSW_MASK(field) \ + GENMASK(DPSW_##field##_SHIFT + DPSW_##field##_SIZE - 1, \ + DPSW_##field##_SHIFT) +#define dpsw_set_field(var, field, val) \ + ((var) |= (((val) << DPSW_##field##_SHIFT) & DPSW_MASK(field))) +#define dpsw_get_field(var, field) \ + (((var) & DPSW_MASK(field)) >> DPSW_##field##_SHIFT) +#define dpsw_get_bit(var, bit) \ + (((var) >> (bit)) & GENMASK(0, 0)) + +#pragma pack(push, 1) +struct dpsw_cmd_open { + __le32 dpsw_id; +}; + +#define DPSW_COMPONENT_TYPE_SHIFT 0 +#define DPSW_COMPONENT_TYPE_SIZE 4 + +struct dpsw_cmd_create { + /* cmd word 0 */ + __le16 num_ifs; + u8 max_fdbs; + u8 max_meters_per_if; + /* from LSB: only the first 4 bits */ + u8 component_type; + u8 pad[3]; + /* cmd word 1 */ + __le16 max_vlans; + __le16 max_fdb_entries; + __le16 fdb_aging_time; + __le16 max_fdb_mc_groups; + /* cmd word 2 */ + __le64 options; +}; + +struct dpsw_cmd_destroy { + __le32 dpsw_id; +}; + +#define DPSW_ENABLE_SHIFT 0 +#define DPSW_ENABLE_SIZE 1 + +struct dpsw_rsp_is_enabled { + /* from LSB: enable:1 */ + u8 enabled; +}; + +struct dpsw_cmd_set_irq_enable { + u8 enable_state; + u8 pad[3]; + u8 irq_index; +}; + +struct dpsw_cmd_get_irq_enable { + __le32 pad; + u8 irq_index; +}; + +struct dpsw_rsp_get_irq_enable { + u8 enable_state; +}; + +struct dpsw_cmd_set_irq_mask { + __le32 mask; + u8 irq_index; +}; + +struct dpsw_cmd_get_irq_mask { + __le32 pad; + u8 irq_index; +}; + +struct dpsw_rsp_get_irq_mask { + __le32 mask; +}; + +struct dpsw_cmd_get_irq_status { + __le32 status; + u8 irq_index; +}; + +struct dpsw_rsp_get_irq_status { + __le32 status; +}; + +struct dpsw_cmd_clear_irq_status { + __le32 status; + u8 irq_index; +}; + +#define DPSW_COMPONENT_TYPE_SHIFT 0 +#define DPSW_COMPONENT_TYPE_SIZE 4 + +#define DPSW_FLOODING_CFG_SHIFT 0 +#define DPSW_FLOODING_CFG_SIZE 4 + +#define DPSW_BROADCAST_CFG_SHIFT 4 +#define DPSW_BROADCAST_CFG_SIZE 4 + +struct dpsw_rsp_get_attr { + /* cmd word 0 */ + __le16 num_ifs; + u8 max_fdbs; + u8 num_fdbs; + __le16 max_vlans; + __le16 num_vlans; + /* cmd word 1 */ + __le16 max_fdb_entries; + __le16 fdb_aging_time; + __le32 dpsw_id; + /* cmd word 2 */ + __le16 mem_size; + __le16 max_fdb_mc_groups; + u8 max_meters_per_if; + /* from LSB only the first 4 bits */ + u8 component_type; + /* [0:3] - flooding configuration + * [4:7] - broadcast configuration + */ + u8 repl_cfg; + u8 pad; + /* cmd word 3 */ + __le64 options; +}; + +#define DPSW_VLAN_ID_SHIFT 0 +#define DPSW_VLAN_ID_SIZE 12 +#define DPSW_DEI_SHIFT 12 +#define DPSW_DEI_SIZE 1 +#define DPSW_PCP_SHIFT 13 +#define DPSW_PCP_SIZE 3 + +struct dpsw_cmd_if_set_tci { + __le16 if_id; + /* from LSB: VLAN_ID:12 DEI:1 PCP:3 */ + __le16 conf; +}; + +struct dpsw_cmd_if_get_tci { + __le16 if_id; +}; + +struct dpsw_rsp_if_get_tci { + __le16 pad; + __le16 vlan_id; + u8 dei; + u8 pcp; +}; + +#define DPSW_STATE_SHIFT 0 +#define DPSW_STATE_SIZE 4 + +struct dpsw_cmd_if_set_stp { + __le16 if_id; + __le16 vlan_id; + /* only the first LSB 4 bits */ + u8 state; +}; + +#define DPSW_COUNTER_TYPE_SHIFT 0 +#define DPSW_COUNTER_TYPE_SIZE 5 + +struct dpsw_cmd_if_get_counter { + __le16 if_id; + /* from LSB: type:5 */ + u8 type; +}; + +struct dpsw_rsp_if_get_counter { + __le64 pad; + __le64 counter; +}; + +struct dpsw_cmd_if { + __le16 if_id; +}; + +#define DPSW_ADMIT_UNTAGGED_SHIFT 0 +#define DPSW_ADMIT_UNTAGGED_SIZE 4 +#define DPSW_ENABLED_SHIFT 5 +#define DPSW_ENABLED_SIZE 1 +#define DPSW_ACCEPT_ALL_VLAN_SHIFT 6 +#define DPSW_ACCEPT_ALL_VLAN_SIZE 1 + +struct dpsw_rsp_if_get_attr { + /* cmd word 0 */ + /* from LSB: admit_untagged:4 enabled:1 accept_all_vlan:1 */ + u8 conf; + u8 pad1; + u8 num_tcs; + u8 pad2; + __le16 qdid; + /* cmd word 1 */ + __le32 options; + __le32 pad3; + /* cmd word 2 */ + __le32 rate; +}; + +struct dpsw_cmd_if_set_max_frame_length { + __le16 if_id; + __le16 frame_length; +}; + +struct dpsw_cmd_if_set_link_cfg { + /* cmd word 0 */ + __le16 if_id; + u8 pad[6]; + /* cmd word 1 */ + __le32 rate; + __le32 pad1; + /* cmd word 2 */ + __le64 options; +}; + +struct dpsw_cmd_if_get_link_state { + __le16 if_id; +}; + +#define DPSW_UP_SHIFT 0 +#define DPSW_UP_SIZE 1 + +struct dpsw_rsp_if_get_link_state { + /* cmd word 0 */ + __le32 pad0; + u8 up; + u8 pad1[3]; + /* cmd word 1 */ + __le32 rate; + __le32 pad2; + /* cmd word 2 */ + __le64 options; +}; + +struct dpsw_vlan_add { + __le16 fdb_id; + __le16 vlan_id; +}; + +struct dpsw_cmd_vlan_add_if { + /* cmd word 0 */ + __le16 options; + __le16 vlan_id; + __le16 fdb_id; + __le16 pad0; + /* cmd word 1-4 */ + __le64 if_id; +}; + +struct dpsw_cmd_vlan_manage_if { + /* cmd word 0 */ + __le16 pad0; + __le16 vlan_id; + __le32 pad1; + /* cmd word 1-4 */ + __le64 if_id[4]; +}; + +struct dpsw_cmd_vlan_remove { + __le16 pad; + __le16 vlan_id; +}; + +struct dpsw_cmd_fdb_add { + __le32 pad; + __le16 fdb_ageing_time; + __le16 num_fdb_entries; +}; + +struct dpsw_rsp_fdb_add { + __le16 fdb_id; +}; + +struct dpsw_cmd_fdb_remove { + __le16 fdb_id; +}; + +#define DPSW_ENTRY_TYPE_SHIFT 0 +#define DPSW_ENTRY_TYPE_SIZE 4 + +struct dpsw_cmd_fdb_unicast_op { + /* cmd word 0 */ + __le16 fdb_id; + u8 mac_addr[6]; + /* cmd word 1 */ + __le16 if_egress; + /* only the first 4 bits from LSB */ + u8 type; +}; + +struct dpsw_cmd_fdb_multicast_op { + /* cmd word 0 */ + __le16 fdb_id; + __le16 num_ifs; + /* only the first 4 bits from LSB */ + u8 type; + u8 pad[3]; + /* cmd word 1 */ + u8 mac_addr[6]; + __le16 pad2; + /* cmd word 2-5 */ + __le64 if_id[4]; +}; + +struct dpsw_cmd_fdb_dump { + __le16 fdb_id; + __le16 pad0; + __le32 pad1; + __le64 iova_addr; + __le32 iova_size; +}; + +struct dpsw_rsp_fdb_dump { + __le16 num_entries; +}; + +struct dpsw_rsp_ctrl_if_get_attr { + __le64 pad; + __le32 rx_fqid; + __le32 rx_err_fqid; + __le32 tx_err_conf_fqid; +}; + +#define DPSW_BACKUP_POOL(val, order) (((val) & 0x1) << (order)) +struct dpsw_cmd_ctrl_if_set_pools { + u8 num_dpbp; + u8 backup_pool_mask; + __le16 pad; + __le32 dpbp_id[DPSW_MAX_DPBP]; + __le16 buffer_size[DPSW_MAX_DPBP]; +}; + +#define DPSW_DEST_TYPE_SHIFT 0 +#define DPSW_DEST_TYPE_SIZE 4 + +struct dpsw_cmd_ctrl_if_set_queue { + __le32 dest_id; + u8 dest_priority; + u8 pad; + /* from LSB: dest_type:4 */ + u8 dest_type; + u8 qtype; + __le64 user_ctx; + __le32 options; +}; + +struct dpsw_rsp_get_api_version { + __le16 version_major; + __le16 version_minor; +}; + +struct dpsw_rsp_if_get_mac_addr { + __le16 pad; + u8 mac_addr[6]; +}; + +struct dpsw_cmd_if_set_mac_addr { + __le16 if_id; + u8 mac_addr[6]; +}; + +struct dpsw_cmd_set_egress_flood { + __le16 fdb_id; + u8 flood_type; + u8 pad[5]; + __le64 if_id; +}; +#pragma pack(pop) +#endif /* __FSL_DPSW_CMD_H */ diff --git a/drivers/net/ethernet/freescale/dpaa2/dpsw.c b/drivers/net/ethernet/freescale/dpaa2/dpsw.c new file mode 100644 index 000000000000..5189f156100e --- /dev/null +++ b/drivers/net/ethernet/freescale/dpaa2/dpsw.c @@ -0,0 +1,1486 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright 2014-2016 Freescale Semiconductor Inc. + * Copyright 2017-2021 NXP + * + */ + +#include <linux/fsl/mc.h> +#include "dpsw.h" +#include "dpsw-cmd.h" + +static void build_if_id_bitmap(__le64 *bmap, + const u16 *id, + const u16 num_ifs) +{ + int i; + + for (i = 0; (i < num_ifs) && (i < DPSW_MAX_IF); i++) { + if (id[i] < DPSW_MAX_IF) + bmap[id[i] / 64] |= cpu_to_le64(BIT_MASK(id[i] % 64)); + } +} + +/** + * dpsw_open() - Open a control session for the specified object + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @dpsw_id: DPSW unique ID + * @token: Returned token; use in subsequent API calls + * + * This function can be used to open a control session for an + * already created object; an object may have been declared in + * the DPL or by calling the dpsw_create() function. + * This function returns a unique authentication token, + * associated with the specific object ID and the specific MC + * portal; this token must be used in all subsequent commands for + * this specific object + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_open(struct fsl_mc_io *mc_io, + u32 cmd_flags, + int dpsw_id, + u16 *token) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_open *cmd_params; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_OPEN, + cmd_flags, + 0); + cmd_params = (struct dpsw_cmd_open *)cmd.params; + cmd_params->dpsw_id = cpu_to_le32(dpsw_id); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + *token = mc_cmd_hdr_read_token(&cmd); + + return 0; +} + +/** + * dpsw_close() - Close the control session of the object + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * + * After this function is called, no further operations are + * allowed on the object without opening a new control session. + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_close(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token) +{ + struct fsl_mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_CLOSE, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_enable() - Enable DPSW functionality + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token) +{ + struct fsl_mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_ENABLE, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_disable() - Disable DPSW functionality + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_disable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token) +{ + struct fsl_mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_DISABLE, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_reset() - Reset the DPSW, returns the object to initial state. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_reset(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token) +{ + struct fsl_mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_RESET, + cmd_flags, + token); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_set_irq_enable() - Set overall interrupt state. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPCI object + * @irq_index: The interrupt index to configure + * @en: Interrupt state - enable = 1, disable = 0 + * + * Allows GPP software to control when interrupts are generated. + * Each interrupt can have up to 32 causes. The enable/disable control's the + * overall interrupt state. if the interrupt is disabled no causes will cause + * an interrupt + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_set_irq_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u8 en) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_set_irq_enable *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_SET_IRQ_ENABLE, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_set_irq_enable *)cmd.params; + dpsw_set_field(cmd_params->enable_state, ENABLE, en); + cmd_params->irq_index = irq_index; + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_set_irq_mask() - Set interrupt mask. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPCI object + * @irq_index: The interrupt index to configure + * @mask: Event mask to trigger interrupt; + * each bit: + * 0 = ignore event + * 1 = consider event for asserting IRQ + * + * Every interrupt can have up to 32 causes and the interrupt model supports + * masking/unmasking each cause independently + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_set_irq_mask(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 mask) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_set_irq_mask *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_SET_IRQ_MASK, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_set_irq_mask *)cmd.params; + cmd_params->mask = cpu_to_le32(mask); + cmd_params->irq_index = irq_index; + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_get_irq_status() - Get the current status of any pending interrupts + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @irq_index: The interrupt index to configure + * @status: Returned interrupts status - one bit per cause: + * 0 = no interrupt pending + * 1 = interrupt pending + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_get_irq_status(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 *status) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_get_irq_status *cmd_params; + struct dpsw_rsp_get_irq_status *rsp_params; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_GET_IRQ_STATUS, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_get_irq_status *)cmd.params; + cmd_params->status = cpu_to_le32(*status); + cmd_params->irq_index = irq_index; + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + rsp_params = (struct dpsw_rsp_get_irq_status *)cmd.params; + *status = le32_to_cpu(rsp_params->status); + + return 0; +} + +/** + * dpsw_clear_irq_status() - Clear a pending interrupt's status + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPCI object + * @irq_index: The interrupt index to configure + * @status: bits to clear (W1C) - one bit per cause: + * 0 = don't change + * 1 = clear status bit + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_clear_irq_status(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 status) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_clear_irq_status *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_CLEAR_IRQ_STATUS, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_clear_irq_status *)cmd.params; + cmd_params->status = cpu_to_le32(status); + cmd_params->irq_index = irq_index; + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_get_attributes() - Retrieve DPSW attributes + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @attr: Returned DPSW attributes + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_get_attributes(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpsw_attr *attr) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_rsp_get_attr *rsp_params; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_GET_ATTR, + cmd_flags, + token); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + rsp_params = (struct dpsw_rsp_get_attr *)cmd.params; + attr->num_ifs = le16_to_cpu(rsp_params->num_ifs); + attr->max_fdbs = rsp_params->max_fdbs; + attr->num_fdbs = rsp_params->num_fdbs; + attr->max_vlans = le16_to_cpu(rsp_params->max_vlans); + attr->num_vlans = le16_to_cpu(rsp_params->num_vlans); + attr->max_fdb_entries = le16_to_cpu(rsp_params->max_fdb_entries); + attr->fdb_aging_time = le16_to_cpu(rsp_params->fdb_aging_time); + attr->id = le32_to_cpu(rsp_params->dpsw_id); + attr->mem_size = le16_to_cpu(rsp_params->mem_size); + attr->max_fdb_mc_groups = le16_to_cpu(rsp_params->max_fdb_mc_groups); + attr->max_meters_per_if = rsp_params->max_meters_per_if; + attr->options = le64_to_cpu(rsp_params->options); + attr->component_type = dpsw_get_field(rsp_params->component_type, COMPONENT_TYPE); + attr->flooding_cfg = dpsw_get_field(rsp_params->repl_cfg, FLOODING_CFG); + attr->broadcast_cfg = dpsw_get_field(rsp_params->repl_cfg, BROADCAST_CFG); + return 0; +} + +/** + * dpsw_if_set_link_cfg() - Set the link configuration. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface id + * @cfg: Link configuration + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_if_set_link_cfg(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + struct dpsw_link_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_if_set_link_cfg *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_LINK_CFG, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if_set_link_cfg *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + cmd_params->rate = cpu_to_le32(cfg->rate); + cmd_params->options = cpu_to_le64(cfg->options); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_if_get_link_state - Return the link state + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface id + * @state: Link state 1 - linkup, 0 - link down or disconnected + * + * @Return '0' on Success; Error code otherwise. + */ +int dpsw_if_get_link_state(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + struct dpsw_link_state *state) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_if_get_link_state *cmd_params; + struct dpsw_rsp_if_get_link_state *rsp_params; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_GET_LINK_STATE, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if_get_link_state *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + rsp_params = (struct dpsw_rsp_if_get_link_state *)cmd.params; + state->rate = le32_to_cpu(rsp_params->rate); + state->options = le64_to_cpu(rsp_params->options); + state->up = dpsw_get_field(rsp_params->up, UP); + + return 0; +} + +/** + * dpsw_if_set_tci() - Set default VLAN Tag Control Information (TCI) + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface Identifier + * @cfg: Tag Control Information Configuration + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_if_set_tci(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + const struct dpsw_tci_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_if_set_tci *cmd_params; + u16 tmp_conf = 0; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_TCI, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if_set_tci *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + dpsw_set_field(tmp_conf, VLAN_ID, cfg->vlan_id); + dpsw_set_field(tmp_conf, DEI, cfg->dei); + dpsw_set_field(tmp_conf, PCP, cfg->pcp); + cmd_params->conf = cpu_to_le16(tmp_conf); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_if_get_tci() - Get default VLAN Tag Control Information (TCI) + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface Identifier + * @cfg: Tag Control Information Configuration + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_if_get_tci(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + struct dpsw_tci_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_if_get_tci *cmd_params; + struct dpsw_rsp_if_get_tci *rsp_params; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_GET_TCI, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if_get_tci *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + rsp_params = (struct dpsw_rsp_if_get_tci *)cmd.params; + cfg->pcp = rsp_params->pcp; + cfg->dei = rsp_params->dei; + cfg->vlan_id = le16_to_cpu(rsp_params->vlan_id); + + return 0; +} + +/** + * dpsw_if_set_stp() - Function sets Spanning Tree Protocol (STP) state. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface Identifier + * @cfg: STP State configuration parameters + * + * The following STP states are supported - + * blocking, listening, learning, forwarding and disabled. + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_if_set_stp(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + const struct dpsw_stp_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_if_set_stp *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_STP, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if_set_stp *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + cmd_params->vlan_id = cpu_to_le16(cfg->vlan_id); + dpsw_set_field(cmd_params->state, STATE, cfg->state); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_if_get_counter() - Get specific counter of particular interface + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface Identifier + * @type: Counter type + * @counter: return value + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_if_get_counter(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + enum dpsw_counter type, + u64 *counter) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_if_get_counter *cmd_params; + struct dpsw_rsp_if_get_counter *rsp_params; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_GET_COUNTER, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if_get_counter *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + dpsw_set_field(cmd_params->type, COUNTER_TYPE, type); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + rsp_params = (struct dpsw_rsp_if_get_counter *)cmd.params; + *counter = le64_to_cpu(rsp_params->counter); + + return 0; +} + +/** + * dpsw_if_enable() - Enable Interface + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface Identifier + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_if_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_if *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_ENABLE, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_if_disable() - Disable Interface + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface Identifier + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_if_disable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_if *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_DISABLE, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_if_get_attributes() - Function obtains attributes of interface + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface Identifier + * @attr: Returned interface attributes + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_if_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + u16 if_id, struct dpsw_if_attr *attr) +{ + struct dpsw_rsp_if_get_attr *rsp_params; + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_if *cmd_params; + int err; + + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_GET_ATTR, cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + rsp_params = (struct dpsw_rsp_if_get_attr *)cmd.params; + attr->num_tcs = rsp_params->num_tcs; + attr->rate = le32_to_cpu(rsp_params->rate); + attr->options = le32_to_cpu(rsp_params->options); + attr->qdid = le16_to_cpu(rsp_params->qdid); + attr->enabled = dpsw_get_field(rsp_params->conf, ENABLED); + attr->accept_all_vlan = dpsw_get_field(rsp_params->conf, + ACCEPT_ALL_VLAN); + attr->admit_untagged = dpsw_get_field(rsp_params->conf, + ADMIT_UNTAGGED); + + return 0; +} + +/** + * dpsw_if_set_max_frame_length() - Set Maximum Receive frame length. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface Identifier + * @frame_length: Maximum Frame Length + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_if_set_max_frame_length(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + u16 frame_length) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_if_set_max_frame_length *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_MAX_FRAME_LENGTH, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if_set_max_frame_length *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + cmd_params->frame_length = cpu_to_le16(frame_length); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_vlan_add() - Adding new VLAN to DPSW. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @vlan_id: VLAN Identifier + * @cfg: VLAN configuration + * + * Only VLAN ID and FDB ID are required parameters here. + * 12 bit VLAN ID is defined in IEEE802.1Q. + * Adding a duplicate VLAN ID is not allowed. + * FDB ID can be shared across multiple VLANs. Shared learning + * is obtained by calling dpsw_vlan_add for multiple VLAN IDs + * with same fdb_id + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_vlan_add(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 vlan_id, + const struct dpsw_vlan_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_vlan_add *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_ADD, + cmd_flags, + token); + cmd_params = (struct dpsw_vlan_add *)cmd.params; + cmd_params->fdb_id = cpu_to_le16(cfg->fdb_id); + cmd_params->vlan_id = cpu_to_le16(vlan_id); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_vlan_add_if() - Adding a set of interfaces to an existing VLAN. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @vlan_id: VLAN Identifier + * @cfg: Set of interfaces to add + * + * It adds only interfaces not belonging to this VLAN yet, + * otherwise an error is generated and an entire command is + * ignored. This function can be called numerous times always + * providing required interfaces delta. + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_vlan_add_if(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 vlan_id, + const struct dpsw_vlan_if_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_vlan_manage_if *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_ADD_IF, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_vlan_manage_if *)cmd.params; + cmd_params->vlan_id = cpu_to_le16(vlan_id); + build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_vlan_add_if_untagged() - Defining a set of interfaces that should be + * transmitted as untagged. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @vlan_id: VLAN Identifier + * @cfg: Set of interfaces that should be transmitted as untagged + * + * These interfaces should already belong to this VLAN. + * By default all interfaces are transmitted as tagged. + * Providing un-existing interface or untagged interface that is + * configured untagged already generates an error and the entire + * command is ignored. + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_vlan_add_if_untagged(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 vlan_id, + const struct dpsw_vlan_if_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_vlan_manage_if *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_ADD_IF_UNTAGGED, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_vlan_manage_if *)cmd.params; + cmd_params->vlan_id = cpu_to_le16(vlan_id); + build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_vlan_remove_if() - Remove interfaces from an existing VLAN. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @vlan_id: VLAN Identifier + * @cfg: Set of interfaces that should be removed + * + * Interfaces must belong to this VLAN, otherwise an error + * is returned and an the command is ignored + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_vlan_remove_if(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 vlan_id, + const struct dpsw_vlan_if_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_vlan_manage_if *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_REMOVE_IF, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_vlan_manage_if *)cmd.params; + cmd_params->vlan_id = cpu_to_le16(vlan_id); + build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_vlan_remove_if_untagged() - Define a set of interfaces that should be + * converted from transmitted as untagged to transmit as tagged. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @vlan_id: VLAN Identifier + * @cfg: Set of interfaces that should be removed + * + * Interfaces provided by API have to belong to this VLAN and + * configured untagged, otherwise an error is returned and the + * command is ignored + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_vlan_remove_if_untagged(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 vlan_id, + const struct dpsw_vlan_if_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_vlan_manage_if *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_REMOVE_IF_UNTAGGED, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_vlan_manage_if *)cmd.params; + cmd_params->vlan_id = cpu_to_le16(vlan_id); + build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_vlan_remove() - Remove an entire VLAN + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @vlan_id: VLAN Identifier + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_vlan_remove(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 vlan_id) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_vlan_remove *cmd_params; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_VLAN_REMOVE, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_vlan_remove *)cmd.params; + cmd_params->vlan_id = cpu_to_le16(vlan_id); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_fdb_add() - Add FDB to switch and Returns handle to FDB table for + * the reference + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @fdb_id: Returned Forwarding Database Identifier + * @cfg: FDB Configuration + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_fdb_add(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, u16 *fdb_id, + const struct dpsw_fdb_cfg *cfg) +{ + struct dpsw_cmd_fdb_add *cmd_params; + struct dpsw_rsp_fdb_add *rsp_params; + struct fsl_mc_command cmd = { 0 }; + int err; + + cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_ADD, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_fdb_add *)cmd.params; + cmd_params->fdb_ageing_time = cpu_to_le16(cfg->fdb_ageing_time); + cmd_params->num_fdb_entries = cpu_to_le16(cfg->num_fdb_entries); + + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + rsp_params = (struct dpsw_rsp_fdb_add *)cmd.params; + *fdb_id = le16_to_cpu(rsp_params->fdb_id); + + return 0; +} + +/** + * dpsw_fdb_remove() - Remove FDB from switch + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @fdb_id: Forwarding Database Identifier + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_fdb_remove(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, u16 fdb_id) +{ + struct dpsw_cmd_fdb_remove *cmd_params; + struct fsl_mc_command cmd = { 0 }; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_REMOVE, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_fdb_remove *)cmd.params; + cmd_params->fdb_id = cpu_to_le16(fdb_id); + + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_fdb_add_unicast() - Function adds an unicast entry into MAC lookup table + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @fdb_id: Forwarding Database Identifier + * @cfg: Unicast entry configuration + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_fdb_add_unicast(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 fdb_id, + const struct dpsw_fdb_unicast_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_fdb_unicast_op *cmd_params; + int i; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_ADD_UNICAST, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_fdb_unicast_op *)cmd.params; + cmd_params->fdb_id = cpu_to_le16(fdb_id); + cmd_params->if_egress = cpu_to_le16(cfg->if_egress); + for (i = 0; i < 6; i++) + cmd_params->mac_addr[i] = cfg->mac_addr[5 - i]; + dpsw_set_field(cmd_params->type, ENTRY_TYPE, cfg->type); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_fdb_dump() - Dump the content of FDB table into memory. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @fdb_id: Forwarding Database Identifier + * @iova_addr: Data will be stored here as an array of struct fdb_dump_entry + * @iova_size: Memory size allocated at iova_addr + * @num_entries:Number of entries written at iova_addr + * + * Return: Completion status. '0' on Success; Error code otherwise. + * + * The memory allocated at iova_addr must be initialized with zero before + * command execution. If the FDB table does not fit into memory MC will stop + * after the memory is filled up. + * The struct fdb_dump_entry array must be parsed until the end of memory + * area or until an entry with mac_addr set to zero is found. + */ +int dpsw_fdb_dump(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 fdb_id, + u64 iova_addr, + u32 iova_size, + u16 *num_entries) +{ + struct dpsw_cmd_fdb_dump *cmd_params; + struct dpsw_rsp_fdb_dump *rsp_params; + struct fsl_mc_command cmd = { 0 }; + int err; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_DUMP, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_fdb_dump *)cmd.params; + cmd_params->fdb_id = cpu_to_le16(fdb_id); + cmd_params->iova_addr = cpu_to_le64(iova_addr); + cmd_params->iova_size = cpu_to_le32(iova_size); + + /* send command to mc */ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + rsp_params = (struct dpsw_rsp_fdb_dump *)cmd.params; + *num_entries = le16_to_cpu(rsp_params->num_entries); + + return 0; +} + +/** + * dpsw_fdb_remove_unicast() - removes an entry from MAC lookup table + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @fdb_id: Forwarding Database Identifier + * @cfg: Unicast entry configuration + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_fdb_remove_unicast(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 fdb_id, + const struct dpsw_fdb_unicast_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_fdb_unicast_op *cmd_params; + int i; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_REMOVE_UNICAST, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_fdb_unicast_op *)cmd.params; + cmd_params->fdb_id = cpu_to_le16(fdb_id); + for (i = 0; i < 6; i++) + cmd_params->mac_addr[i] = cfg->mac_addr[5 - i]; + cmd_params->if_egress = cpu_to_le16(cfg->if_egress); + dpsw_set_field(cmd_params->type, ENTRY_TYPE, cfg->type); + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_fdb_add_multicast() - Add a set of egress interfaces to multi-cast group + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @fdb_id: Forwarding Database Identifier + * @cfg: Multicast entry configuration + * + * If group doesn't exist, it will be created. + * It adds only interfaces not belonging to this multicast group + * yet, otherwise error will be generated and the command is + * ignored. + * This function may be called numerous times always providing + * required interfaces delta. + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_fdb_add_multicast(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 fdb_id, + const struct dpsw_fdb_multicast_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_fdb_multicast_op *cmd_params; + int i; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_ADD_MULTICAST, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_fdb_multicast_op *)cmd.params; + cmd_params->fdb_id = cpu_to_le16(fdb_id); + cmd_params->num_ifs = cpu_to_le16(cfg->num_ifs); + dpsw_set_field(cmd_params->type, ENTRY_TYPE, cfg->type); + build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs); + for (i = 0; i < 6; i++) + cmd_params->mac_addr[i] = cfg->mac_addr[5 - i]; + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_fdb_remove_multicast() - Removing interfaces from an existing multicast + * group. + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @fdb_id: Forwarding Database Identifier + * @cfg: Multicast entry configuration + * + * Interfaces provided by this API have to exist in the group, + * otherwise an error will be returned and an entire command + * ignored. If there is no interface left in the group, + * an entire group is deleted + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_fdb_remove_multicast(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 fdb_id, + const struct dpsw_fdb_multicast_cfg *cfg) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_fdb_multicast_op *cmd_params; + int i; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_FDB_REMOVE_MULTICAST, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_fdb_multicast_op *)cmd.params; + cmd_params->fdb_id = cpu_to_le16(fdb_id); + cmd_params->num_ifs = cpu_to_le16(cfg->num_ifs); + dpsw_set_field(cmd_params->type, ENTRY_TYPE, cfg->type); + build_if_id_bitmap(cmd_params->if_id, cfg->if_id, cfg->num_ifs); + for (i = 0; i < 6; i++) + cmd_params->mac_addr[i] = cfg->mac_addr[5 - i]; + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_ctrl_if_get_attributes() - Obtain control interface attributes + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @attr: Returned control interface attributes + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_ctrl_if_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, + u16 token, struct dpsw_ctrl_if_attr *attr) +{ + struct dpsw_rsp_ctrl_if_get_attr *rsp_params; + struct fsl_mc_command cmd = { 0 }; + int err; + + cmd.header = mc_encode_cmd_header(DPSW_CMDID_CTRL_IF_GET_ATTR, + cmd_flags, token); + + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + rsp_params = (struct dpsw_rsp_ctrl_if_get_attr *)cmd.params; + attr->rx_fqid = le32_to_cpu(rsp_params->rx_fqid); + attr->rx_err_fqid = le32_to_cpu(rsp_params->rx_err_fqid); + attr->tx_err_conf_fqid = le32_to_cpu(rsp_params->tx_err_conf_fqid); + + return 0; +} + +/** + * dpsw_ctrl_if_set_pools() - Set control interface buffer pools + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @cfg: Buffer pools configuration + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_ctrl_if_set_pools(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + const struct dpsw_ctrl_if_pools_cfg *cfg) +{ + struct dpsw_cmd_ctrl_if_set_pools *cmd_params; + struct fsl_mc_command cmd = { 0 }; + int i; + + cmd.header = mc_encode_cmd_header(DPSW_CMDID_CTRL_IF_SET_POOLS, + cmd_flags, token); + cmd_params = (struct dpsw_cmd_ctrl_if_set_pools *)cmd.params; + cmd_params->num_dpbp = cfg->num_dpbp; + for (i = 0; i < DPSW_MAX_DPBP; i++) { + cmd_params->dpbp_id[i] = cpu_to_le32(cfg->pools[i].dpbp_id); + cmd_params->buffer_size[i] = + cpu_to_le16(cfg->pools[i].buffer_size); + cmd_params->backup_pool_mask |= + DPSW_BACKUP_POOL(cfg->pools[i].backup_pool, i); + } + + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_ctrl_if_set_queue() - Set Rx queue configuration + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of dpsw object + * @qtype: dpsw_queue_type of the targeted queue + * @cfg: Rx queue configuration + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_ctrl_if_set_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + enum dpsw_queue_type qtype, + const struct dpsw_ctrl_if_queue_cfg *cfg) +{ + struct dpsw_cmd_ctrl_if_set_queue *cmd_params; + struct fsl_mc_command cmd = { 0 }; + + cmd.header = mc_encode_cmd_header(DPSW_CMDID_CTRL_IF_SET_QUEUE, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_ctrl_if_set_queue *)cmd.params; + cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id); + cmd_params->dest_priority = cfg->dest_cfg.priority; + cmd_params->qtype = qtype; + cmd_params->user_ctx = cpu_to_le64(cfg->user_ctx); + cmd_params->options = cpu_to_le32(cfg->options); + dpsw_set_field(cmd_params->dest_type, + DEST_TYPE, + cfg->dest_cfg.dest_type); + + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_get_api_version() - Get Data Path Switch API version + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @major_ver: Major version of data path switch API + * @minor_ver: Minor version of data path switch API + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver) +{ + struct fsl_mc_command cmd = { 0 }; + struct dpsw_rsp_get_api_version *rsp_params; + int err; + + cmd.header = mc_encode_cmd_header(DPSW_CMDID_GET_API_VERSION, + cmd_flags, + 0); + + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + rsp_params = (struct dpsw_rsp_get_api_version *)cmd.params; + *major_ver = le16_to_cpu(rsp_params->version_major); + *minor_ver = le16_to_cpu(rsp_params->version_minor); + + return 0; +} + +/** + * dpsw_if_get_port_mac_addr() + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface Identifier + * @mac_addr: MAC address of the physical port, if any, otherwise 0 + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_if_get_port_mac_addr(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + u16 if_id, u8 mac_addr[6]) +{ + struct dpsw_rsp_if_get_mac_addr *rsp_params; + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_if *cmd_params; + int err, i; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_GET_PORT_MAC_ADDR, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + rsp_params = (struct dpsw_rsp_if_get_mac_addr *)cmd.params; + for (i = 0; i < 6; i++) + mac_addr[5 - i] = rsp_params->mac_addr[i]; + + return 0; +} + +/** + * dpsw_if_get_primary_mac_addr() + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface Identifier + * @mac_addr: MAC address of the physical port, if any, otherwise 0 + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_if_get_primary_mac_addr(struct fsl_mc_io *mc_io, u32 cmd_flags, + u16 token, u16 if_id, u8 mac_addr[6]) +{ + struct dpsw_rsp_if_get_mac_addr *rsp_params; + struct fsl_mc_command cmd = { 0 }; + struct dpsw_cmd_if *cmd_params; + int err, i; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_PRIMARY_MAC_ADDR, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + + /* send command to mc*/ + err = mc_send_command(mc_io, &cmd); + if (err) + return err; + + /* retrieve response parameters */ + rsp_params = (struct dpsw_rsp_if_get_mac_addr *)cmd.params; + for (i = 0; i < 6; i++) + mac_addr[5 - i] = rsp_params->mac_addr[i]; + + return 0; +} + +/** + * dpsw_if_set_primary_mac_addr() + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @if_id: Interface Identifier + * @mac_addr: MAC address of the physical port, if any, otherwise 0 + * + * Return: Completion status. '0' on Success; Error code otherwise. + */ +int dpsw_if_set_primary_mac_addr(struct fsl_mc_io *mc_io, u32 cmd_flags, + u16 token, u16 if_id, u8 mac_addr[6]) +{ + struct dpsw_cmd_if_set_mac_addr *cmd_params; + struct fsl_mc_command cmd = { 0 }; + int i; + + /* prepare command */ + cmd.header = mc_encode_cmd_header(DPSW_CMDID_IF_SET_PRIMARY_MAC_ADDR, + cmd_flags, + token); + cmd_params = (struct dpsw_cmd_if_set_mac_addr *)cmd.params; + cmd_params->if_id = cpu_to_le16(if_id); + for (i = 0; i < 6; i++) + cmd_params->mac_addr[i] = mac_addr[5 - i]; + + /* send command to mc*/ + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_ctrl_if_enable() - Enable control interface + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_ctrl_if_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token) +{ + struct fsl_mc_command cmd = { 0 }; + + cmd.header = mc_encode_cmd_header(DPSW_CMDID_CTRL_IF_ENABLE, cmd_flags, + token); + + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_ctrl_if_disable() - Function disables control interface + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_ctrl_if_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token) +{ + struct fsl_mc_command cmd = { 0 }; + + cmd.header = mc_encode_cmd_header(DPSW_CMDID_CTRL_IF_DISABLE, + cmd_flags, + token); + + return mc_send_command(mc_io, &cmd); +} + +/** + * dpsw_set_egress_flood() - Set egress parameters associated with an FDB ID + * @mc_io: Pointer to MC portal's I/O object + * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_' + * @token: Token of DPSW object + * @cfg: Egress flooding configuration + * + * Return: '0' on Success; Error code otherwise. + */ +int dpsw_set_egress_flood(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + const struct dpsw_egress_flood_cfg *cfg) +{ + struct dpsw_cmd_set_egress_flood *cmd_params; + struct fsl_mc_command cmd = { 0 }; + + cmd.header = mc_encode_cmd_header(DPSW_CMDID_SET_EGRESS_FLOOD, cmd_flags, token); + cmd_params = (struct dpsw_cmd_set_egress_flood *)cmd.params; + cmd_params->fdb_id = cpu_to_le16(cfg->fdb_id); + cmd_params->flood_type = cfg->flood_type; + build_if_id_bitmap(&cmd_params->if_id, cfg->if_id, cfg->num_ifs); + + return mc_send_command(mc_io, &cmd); +} diff --git a/drivers/net/ethernet/freescale/dpaa2/dpsw.h b/drivers/net/ethernet/freescale/dpaa2/dpsw.h new file mode 100644 index 000000000000..9e04350f3277 --- /dev/null +++ b/drivers/net/ethernet/freescale/dpaa2/dpsw.h @@ -0,0 +1,751 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright 2014-2016 Freescale Semiconductor Inc. + * Copyright 2017-2021 NXP + * + */ + +#ifndef __FSL_DPSW_H +#define __FSL_DPSW_H + +/* Data Path L2-Switch API + * Contains API for handling DPSW topology and functionality + */ + +struct fsl_mc_io; + +/** + * DPSW general definitions + */ + +/** + * Maximum number of traffic class priorities + */ +#define DPSW_MAX_PRIORITIES 8 +/** + * Maximum number of interfaces + */ +#define DPSW_MAX_IF 64 + +int dpsw_open(struct fsl_mc_io *mc_io, + u32 cmd_flags, + int dpsw_id, + u16 *token); + +int dpsw_close(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +/** + * DPSW options + */ + +/** + * Disable flooding + */ +#define DPSW_OPT_FLOODING_DIS 0x0000000000000001ULL +/** + * Disable Multicast + */ +#define DPSW_OPT_MULTICAST_DIS 0x0000000000000004ULL +/** + * Support control interface + */ +#define DPSW_OPT_CTRL_IF_DIS 0x0000000000000010ULL +/** + * Disable flooding metering + */ +#define DPSW_OPT_FLOODING_METERING_DIS 0x0000000000000020ULL +/** + * Enable metering + */ +#define DPSW_OPT_METERING_EN 0x0000000000000040ULL + +/** + * enum dpsw_component_type - component type of a bridge + * @DPSW_COMPONENT_TYPE_C_VLAN: A C-VLAN component of an + * enterprise VLAN bridge or of a Provider Bridge used + * to process C-tagged frames + * @DPSW_COMPONENT_TYPE_S_VLAN: An S-VLAN component of a + * Provider Bridge + * + */ +enum dpsw_component_type { + DPSW_COMPONENT_TYPE_C_VLAN = 0, + DPSW_COMPONENT_TYPE_S_VLAN +}; + +/** + * enum dpsw_flooding_cfg - flooding configuration requested + * @DPSW_FLOODING_PER_VLAN: Flooding replicators are allocated per VLAN and + * interfaces present in each of them can be configured using + * dpsw_vlan_add_if_flooding()/dpsw_vlan_remove_if_flooding(). + * This is the default configuration. + * + * @DPSW_FLOODING_PER_FDB: Flooding replicators are allocated per FDB and + * interfaces present in each of them can be configured using + * dpsw_set_egress_flood(). + */ +enum dpsw_flooding_cfg { + DPSW_FLOODING_PER_VLAN = 0, + DPSW_FLOODING_PER_FDB, +}; + +/** + * enum dpsw_broadcast_cfg - broadcast configuration requested + * @DPSW_BROADCAST_PER_OBJECT: There is only one broadcast replicator per DPSW + * object. This is the default configuration. + * @DPSW_BROADCAST_PER_FDB: Broadcast replicators are allocated per FDB and + * interfaces present in each of them can be configured using + * dpsw_set_egress_flood(). + */ +enum dpsw_broadcast_cfg { + DPSW_BROADCAST_PER_OBJECT = 0, + DPSW_BROADCAST_PER_FDB, +}; + +int dpsw_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +int dpsw_disable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +int dpsw_reset(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token); + +/** + * DPSW IRQ Index and Events + */ + +#define DPSW_IRQ_INDEX_IF 0x0000 +#define DPSW_IRQ_INDEX_L2SW 0x0001 + +/** + * IRQ event - Indicates that the link state changed + */ +#define DPSW_IRQ_EVENT_LINK_CHANGED 0x0001 + +/** + * struct dpsw_irq_cfg - IRQ configuration + * @addr: Address that must be written to signal a message-based interrupt + * @val: Value to write into irq_addr address + * @irq_num: A user defined number associated with this IRQ + */ +struct dpsw_irq_cfg { + u64 addr; + u32 val; + int irq_num; +}; + +int dpsw_set_irq_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u8 en); + +int dpsw_set_irq_mask(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 mask); + +int dpsw_get_irq_status(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 *status); + +int dpsw_clear_irq_status(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u8 irq_index, + u32 status); + +/** + * struct dpsw_attr - Structure representing DPSW attributes + * @id: DPSW object ID + * @options: Enable/Disable DPSW features + * @max_vlans: Maximum Number of VLANs + * @max_meters_per_if: Number of meters per interface + * @max_fdbs: Maximum Number of FDBs + * @max_fdb_entries: Number of FDB entries for default FDB table; + * 0 - indicates default 1024 entries. + * @fdb_aging_time: Default FDB aging time for default FDB table; + * 0 - indicates default 300 seconds + * @max_fdb_mc_groups: Number of multicast groups in each FDB table; + * 0 - indicates default 32 + * @mem_size: DPSW frame storage memory size + * @num_ifs: Number of interfaces + * @num_vlans: Current number of VLANs + * @num_fdbs: Current number of FDBs + * @component_type: Component type of this bridge + * @flooding_cfg: Flooding configuration (PER_VLAN - default, PER_FDB) + * @broadcast_cfg: Broadcast configuration (PER_OBJECT - default, PER_FDB) + */ +struct dpsw_attr { + int id; + u64 options; + u16 max_vlans; + u8 max_meters_per_if; + u8 max_fdbs; + u16 max_fdb_entries; + u16 fdb_aging_time; + u16 max_fdb_mc_groups; + u16 num_ifs; + u16 mem_size; + u16 num_vlans; + u8 num_fdbs; + enum dpsw_component_type component_type; + enum dpsw_flooding_cfg flooding_cfg; + enum dpsw_broadcast_cfg broadcast_cfg; +}; + +int dpsw_get_attributes(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + struct dpsw_attr *attr); + +/** + * struct dpsw_ctrl_if_attr - Control interface attributes + * @rx_fqid: Receive FQID + * @rx_err_fqid: Receive error FQID + * @tx_err_conf_fqid: Transmit error and confirmation FQID + */ +struct dpsw_ctrl_if_attr { + u32 rx_fqid; + u32 rx_err_fqid; + u32 tx_err_conf_fqid; +}; + +int dpsw_ctrl_if_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, + u16 token, struct dpsw_ctrl_if_attr *attr); + +enum dpsw_queue_type { + DPSW_QUEUE_RX, + DPSW_QUEUE_TX_ERR_CONF, + DPSW_QUEUE_RX_ERR, +}; + +/** + * Maximum number of DPBP + */ +#define DPSW_MAX_DPBP 8 + +/** + * struct dpsw_ctrl_if_pools_cfg - Control interface buffer pools configuration + * @num_dpbp: Number of DPBPs + * @pools: Array of buffer pools parameters; The number of valid entries + * must match 'num_dpbp' value + * @pools.dpbp_id: DPBP object ID + * @pools.buffer_size: Buffer size + * @pools.backup_pool: Backup pool + */ +struct dpsw_ctrl_if_pools_cfg { + u8 num_dpbp; + struct { + int dpbp_id; + u16 buffer_size; + int backup_pool; + } pools[DPSW_MAX_DPBP]; +}; + +int dpsw_ctrl_if_set_pools(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + const struct dpsw_ctrl_if_pools_cfg *cfg); + +#define DPSW_CTRL_IF_QUEUE_OPT_USER_CTX 0x00000001 +#define DPSW_CTRL_IF_QUEUE_OPT_DEST 0x00000002 + +enum dpsw_ctrl_if_dest { + DPSW_CTRL_IF_DEST_NONE = 0, + DPSW_CTRL_IF_DEST_DPIO = 1, +}; + +struct dpsw_ctrl_if_dest_cfg { + enum dpsw_ctrl_if_dest dest_type; + int dest_id; + u8 priority; +}; + +struct dpsw_ctrl_if_queue_cfg { + u32 options; + u64 user_ctx; + struct dpsw_ctrl_if_dest_cfg dest_cfg; +}; + +int dpsw_ctrl_if_set_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + enum dpsw_queue_type qtype, + const struct dpsw_ctrl_if_queue_cfg *cfg); + +int dpsw_ctrl_if_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token); + +int dpsw_ctrl_if_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token); + +/** + * enum dpsw_action - Action selection for special/control frames + * @DPSW_ACTION_DROP: Drop frame + * @DPSW_ACTION_REDIRECT: Redirect frame to control port + */ +enum dpsw_action { + DPSW_ACTION_DROP = 0, + DPSW_ACTION_REDIRECT = 1 +}; + +/** + * Enable auto-negotiation + */ +#define DPSW_LINK_OPT_AUTONEG 0x0000000000000001ULL +/** + * Enable half-duplex mode + */ +#define DPSW_LINK_OPT_HALF_DUPLEX 0x0000000000000002ULL +/** + * Enable pause frames + */ +#define DPSW_LINK_OPT_PAUSE 0x0000000000000004ULL +/** + * Enable a-symmetric pause frames + */ +#define DPSW_LINK_OPT_ASYM_PAUSE 0x0000000000000008ULL + +/** + * struct dpsw_link_cfg - Structure representing DPSW link configuration + * @rate: Rate + * @options: Mask of available options; use 'DPSW_LINK_OPT_<X>' values + */ +struct dpsw_link_cfg { + u32 rate; + u64 options; +}; + +int dpsw_if_set_link_cfg(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + struct dpsw_link_cfg *cfg); +/** + * struct dpsw_link_state - Structure representing DPSW link state + * @rate: Rate + * @options: Mask of available options; use 'DPSW_LINK_OPT_<X>' values + * @up: 0 - covers two cases: down and disconnected, 1 - up + */ +struct dpsw_link_state { + u32 rate; + u64 options; + u8 up; +}; + +int dpsw_if_get_link_state(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + struct dpsw_link_state *state); + +/** + * struct dpsw_tci_cfg - Tag Control Information (TCI) configuration + * @pcp: Priority Code Point (PCP): a 3-bit field which refers + * to the IEEE 802.1p priority + * @dei: Drop Eligible Indicator (DEI): a 1-bit field. May be used + * separately or in conjunction with PCP to indicate frames + * eligible to be dropped in the presence of congestion + * @vlan_id: VLAN Identifier (VID): a 12-bit field specifying the VLAN + * to which the frame belongs. The hexadecimal values + * of 0x000 and 0xFFF are reserved; + * all other values may be used as VLAN identifiers, + * allowing up to 4,094 VLANs + */ +struct dpsw_tci_cfg { + u8 pcp; + u8 dei; + u16 vlan_id; +}; + +int dpsw_if_set_tci(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + const struct dpsw_tci_cfg *cfg); + +int dpsw_if_get_tci(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + struct dpsw_tci_cfg *cfg); + +/** + * enum dpsw_stp_state - Spanning Tree Protocol (STP) states + * @DPSW_STP_STATE_BLOCKING: Blocking state + * @DPSW_STP_STATE_LISTENING: Listening state + * @DPSW_STP_STATE_LEARNING: Learning state + * @DPSW_STP_STATE_FORWARDING: Forwarding state + * + */ +enum dpsw_stp_state { + DPSW_STP_STATE_DISABLED = 0, + DPSW_STP_STATE_LISTENING = 1, + DPSW_STP_STATE_LEARNING = 2, + DPSW_STP_STATE_FORWARDING = 3, + DPSW_STP_STATE_BLOCKING = 0 +}; + +/** + * struct dpsw_stp_cfg - Spanning Tree Protocol (STP) Configuration + * @vlan_id: VLAN ID STP state + * @state: STP state + */ +struct dpsw_stp_cfg { + u16 vlan_id; + enum dpsw_stp_state state; +}; + +int dpsw_if_set_stp(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + const struct dpsw_stp_cfg *cfg); + +/** + * enum dpsw_accepted_frames - Types of frames to accept + * @DPSW_ADMIT_ALL: The device accepts VLAN tagged, untagged and + * priority tagged frames + * @DPSW_ADMIT_ONLY_VLAN_TAGGED: The device discards untagged frames or + * Priority-Tagged frames received on this interface. + * + */ +enum dpsw_accepted_frames { + DPSW_ADMIT_ALL = 1, + DPSW_ADMIT_ONLY_VLAN_TAGGED = 3 +}; + +/** + * enum dpsw_counter - Counters types + * @DPSW_CNT_ING_FRAME: Counts ingress frames + * @DPSW_CNT_ING_BYTE: Counts ingress bytes + * @DPSW_CNT_ING_FLTR_FRAME: Counts filtered ingress frames + * @DPSW_CNT_ING_FRAME_DISCARD: Counts discarded ingress frame + * @DPSW_CNT_ING_MCAST_FRAME: Counts ingress multicast frames + * @DPSW_CNT_ING_MCAST_BYTE: Counts ingress multicast bytes + * @DPSW_CNT_ING_BCAST_FRAME: Counts ingress broadcast frames + * @DPSW_CNT_ING_BCAST_BYTES: Counts ingress broadcast bytes + * @DPSW_CNT_EGR_FRAME: Counts egress frames + * @DPSW_CNT_EGR_BYTE: Counts egress bytes + * @DPSW_CNT_EGR_FRAME_DISCARD: Counts discarded egress frames + * @DPSW_CNT_EGR_STP_FRAME_DISCARD: Counts egress STP discarded frames + * @DPSW_CNT_ING_NO_BUFF_DISCARD: Counts ingress no buffer discarded frames + */ +enum dpsw_counter { + DPSW_CNT_ING_FRAME = 0x0, + DPSW_CNT_ING_BYTE = 0x1, + DPSW_CNT_ING_FLTR_FRAME = 0x2, + DPSW_CNT_ING_FRAME_DISCARD = 0x3, + DPSW_CNT_ING_MCAST_FRAME = 0x4, + DPSW_CNT_ING_MCAST_BYTE = 0x5, + DPSW_CNT_ING_BCAST_FRAME = 0x6, + DPSW_CNT_ING_BCAST_BYTES = 0x7, + DPSW_CNT_EGR_FRAME = 0x8, + DPSW_CNT_EGR_BYTE = 0x9, + DPSW_CNT_EGR_FRAME_DISCARD = 0xa, + DPSW_CNT_EGR_STP_FRAME_DISCARD = 0xb, + DPSW_CNT_ING_NO_BUFF_DISCARD = 0xc, +}; + +int dpsw_if_get_counter(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + enum dpsw_counter type, + u64 *counter); + +int dpsw_if_enable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id); + +int dpsw_if_disable(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id); + +/** + * struct dpsw_if_attr - Structure representing DPSW interface attributes + * @num_tcs: Number of traffic classes + * @rate: Transmit rate in bits per second + * @options: Interface configuration options (bitmap) + * @enabled: Indicates if interface is enabled + * @accept_all_vlan: The device discards/accepts incoming frames + * for VLANs that do not include this interface + * @admit_untagged: When set to 'DPSW_ADMIT_ONLY_VLAN_TAGGED', the device + * discards untagged frames or priority-tagged frames received on + * this interface; + * When set to 'DPSW_ADMIT_ALL', untagged frames or priority- + * tagged frames received on this interface are accepted + * @qdid: control frames transmit qdid + */ +struct dpsw_if_attr { + u8 num_tcs; + u32 rate; + u32 options; + int enabled; + int accept_all_vlan; + enum dpsw_accepted_frames admit_untagged; + u16 qdid; +}; + +int dpsw_if_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + u16 if_id, struct dpsw_if_attr *attr); + +int dpsw_if_set_max_frame_length(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 if_id, + u16 frame_length); + +/** + * struct dpsw_vlan_cfg - VLAN Configuration + * @fdb_id: Forwarding Data Base + */ +struct dpsw_vlan_cfg { + u16 fdb_id; +}; + +int dpsw_vlan_add(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 vlan_id, + const struct dpsw_vlan_cfg *cfg); + +#define DPSW_VLAN_ADD_IF_OPT_FDB_ID 0x0001 + +/** + * struct dpsw_vlan_if_cfg - Set of VLAN Interfaces + * @num_ifs: The number of interfaces that are assigned to the egress + * list for this VLAN + * @if_id: The set of interfaces that are + * assigned to the egress list for this VLAN + */ +struct dpsw_vlan_if_cfg { + u16 num_ifs; + u16 options; + u16 if_id[DPSW_MAX_IF]; + u16 fdb_id; +}; + +int dpsw_vlan_add_if(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 vlan_id, + const struct dpsw_vlan_if_cfg *cfg); + +int dpsw_vlan_add_if_untagged(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 vlan_id, + const struct dpsw_vlan_if_cfg *cfg); + +int dpsw_vlan_remove_if(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 vlan_id, + const struct dpsw_vlan_if_cfg *cfg); + +int dpsw_vlan_remove_if_untagged(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 vlan_id, + const struct dpsw_vlan_if_cfg *cfg); + +int dpsw_vlan_remove(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 vlan_id); + +/** + * enum dpsw_fdb_entry_type - FDB Entry type - Static/Dynamic + * @DPSW_FDB_ENTRY_STATIC: Static entry + * @DPSW_FDB_ENTRY_DINAMIC: Dynamic entry + */ +enum dpsw_fdb_entry_type { + DPSW_FDB_ENTRY_STATIC = 0, + DPSW_FDB_ENTRY_DINAMIC = 1 +}; + +/** + * struct dpsw_fdb_unicast_cfg - Unicast entry configuration + * @type: Select static or dynamic entry + * @mac_addr: MAC address + * @if_egress: Egress interface ID + */ +struct dpsw_fdb_unicast_cfg { + enum dpsw_fdb_entry_type type; + u8 mac_addr[6]; + u16 if_egress; +}; + +int dpsw_fdb_add_unicast(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 fdb_id, + const struct dpsw_fdb_unicast_cfg *cfg); + +int dpsw_fdb_remove_unicast(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 fdb_id, + const struct dpsw_fdb_unicast_cfg *cfg); + +#define DPSW_FDB_ENTRY_TYPE_DYNAMIC BIT(0) +#define DPSW_FDB_ENTRY_TYPE_UNICAST BIT(1) + +/** + * struct fdb_dump_entry - fdb snapshot entry + * @mac_addr: MAC address + * @type: bit0 - DINAMIC(1)/STATIC(0), bit1 - UNICAST(1)/MULTICAST(0) + * @if_info: unicast - egress interface, multicast - number of egress interfaces + * @if_mask: multicast - egress interface mask + */ +struct fdb_dump_entry { + u8 mac_addr[6]; + u8 type; + u8 if_info; + u8 if_mask[8]; +}; + +int dpsw_fdb_dump(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 fdb_id, + u64 iova_addr, + u32 iova_size, + u16 *num_entries); + +/** + * struct dpsw_fdb_multicast_cfg - Multi-cast entry configuration + * @type: Select static or dynamic entry + * @mac_addr: MAC address + * @num_ifs: Number of external and internal interfaces + * @if_id: Egress interface IDs + */ +struct dpsw_fdb_multicast_cfg { + enum dpsw_fdb_entry_type type; + u8 mac_addr[6]; + u16 num_ifs; + u16 if_id[DPSW_MAX_IF]; +}; + +int dpsw_fdb_add_multicast(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 fdb_id, + const struct dpsw_fdb_multicast_cfg *cfg); + +int dpsw_fdb_remove_multicast(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 token, + u16 fdb_id, + const struct dpsw_fdb_multicast_cfg *cfg); + +/** + * enum dpsw_fdb_learning_mode - Auto-learning modes + * @DPSW_FDB_LEARNING_MODE_DIS: Disable Auto-learning + * @DPSW_FDB_LEARNING_MODE_HW: Enable HW auto-Learning + * @DPSW_FDB_LEARNING_MODE_NON_SECURE: Enable None secure learning by CPU + * @DPSW_FDB_LEARNING_MODE_SECURE: Enable secure learning by CPU + * + * NONE - SECURE LEARNING + * SMAC found DMAC found CTLU Action + * v v Forward frame to + * 1. DMAC destination + * - v Forward frame to + * 1. DMAC destination + * 2. Control interface + * v - Forward frame to + * 1. Flooding list of interfaces + * - - Forward frame to + * 1. Flooding list of interfaces + * 2. Control interface + * SECURE LEARING + * SMAC found DMAC found CTLU Action + * v v Forward frame to + * 1. DMAC destination + * - v Forward frame to + * 1. Control interface + * v - Forward frame to + * 1. Flooding list of interfaces + * - - Forward frame to + * 1. Control interface + */ +enum dpsw_fdb_learning_mode { + DPSW_FDB_LEARNING_MODE_DIS = 0, + DPSW_FDB_LEARNING_MODE_HW = 1, + DPSW_FDB_LEARNING_MODE_NON_SECURE = 2, + DPSW_FDB_LEARNING_MODE_SECURE = 3 +}; + +/** + * struct dpsw_fdb_attr - FDB Attributes + * @max_fdb_entries: Number of FDB entries + * @fdb_ageing_time: Ageing time in seconds + * @learning_mode: Learning mode + * @num_fdb_mc_groups: Current number of multicast groups + * @max_fdb_mc_groups: Maximum number of multicast groups + */ +struct dpsw_fdb_attr { + u16 max_fdb_entries; + u16 fdb_ageing_time; + enum dpsw_fdb_learning_mode learning_mode; + u16 num_fdb_mc_groups; + u16 max_fdb_mc_groups; +}; + +int dpsw_get_api_version(struct fsl_mc_io *mc_io, + u32 cmd_flags, + u16 *major_ver, + u16 *minor_ver); + +int dpsw_if_get_port_mac_addr(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + u16 if_id, u8 mac_addr[6]); + +int dpsw_if_get_primary_mac_addr(struct fsl_mc_io *mc_io, u32 cmd_flags, + u16 token, u16 if_id, u8 mac_addr[6]); + +int dpsw_if_set_primary_mac_addr(struct fsl_mc_io *mc_io, u32 cmd_flags, + u16 token, u16 if_id, u8 mac_addr[6]); + +/** + * struct dpsw_fdb_cfg - FDB Configuration + * @num_fdb_entries: Number of FDB entries + * @fdb_ageing_time: Ageing time in seconds + */ +struct dpsw_fdb_cfg { + u16 num_fdb_entries; + u16 fdb_ageing_time; +}; + +int dpsw_fdb_add(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, u16 *fdb_id, + const struct dpsw_fdb_cfg *cfg); + +int dpsw_fdb_remove(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, u16 fdb_id); + +/** + * enum dpsw_flood_type - Define the flood type of a DPSW object + * @DPSW_BROADCAST: Broadcast flooding + * @DPSW_FLOODING: Unknown flooding + */ +enum dpsw_flood_type { + DPSW_BROADCAST = 0, + DPSW_FLOODING, +}; + +struct dpsw_egress_flood_cfg { + u16 fdb_id; + enum dpsw_flood_type flood_type; + u16 num_ifs; + u16 if_id[DPSW_MAX_IF]; +}; + +int dpsw_set_egress_flood(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token, + const struct dpsw_egress_flood_cfg *cfg); + +#endif /* __FSL_DPSW_H */ |