From 9370bb92b2d16684ee45cf24e879c93c509162da Mon Sep 17 00:00:00 2001 From: hc <hc@nodka.com> Date: Thu, 19 Dec 2024 01:47:39 +0000 Subject: [PATCH] add wifi6 8852be driver --- kernel/drivers/net/ethernet/mscc/ocelot.c | 1824 +++++++++++++++++++++++++++------------------------------- 1 files changed, 845 insertions(+), 979 deletions(-) diff --git a/kernel/drivers/net/ethernet/mscc/ocelot.c b/kernel/drivers/net/ethernet/mscc/ocelot.c index ea30da1..a55861e 100644 --- a/kernel/drivers/net/ethernet/mscc/ocelot.c +++ b/kernel/drivers/net/ethernet/mscc/ocelot.c @@ -4,36 +4,13 @@ * * Copyright (c) 2017 Microsemi Corporation */ -#include <linux/etherdevice.h> -#include <linux/ethtool.h> #include <linux/if_bridge.h> -#include <linux/if_ether.h> -#include <linux/if_vlan.h> -#include <linux/interrupt.h> -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/netdevice.h> -#include <linux/phy.h> -#include <linux/skbuff.h> -#include <net/arp.h> -#include <net/netevent.h> -#include <net/rtnetlink.h> -#include <net/switchdev.h> - +#include <soc/mscc/ocelot_vcap.h> #include "ocelot.h" +#include "ocelot_vcap.h" -/* MAC table entry types. - * ENTRYTYPE_NORMAL is subject to aging. - * ENTRYTYPE_LOCKED is not subject to aging. - * ENTRYTYPE_MACv4 is not subject to aging. For IPv4 multicast. - * ENTRYTYPE_MACv6 is not subject to aging. For IPv6 multicast. - */ -enum macaccess_entry_type { - ENTRYTYPE_NORMAL = 0, - ENTRYTYPE_LOCKED, - ENTRYTYPE_MACv4, - ENTRYTYPE_MACv6, -}; +#define TABLE_UPDATE_SLEEP_US 10 +#define TABLE_UPDATE_TIMEOUT_US 100000 struct ocelot_mact_entry { u8 mac[ETH_ALEN]; @@ -41,23 +18,20 @@ enum macaccess_entry_type type; }; +static inline u32 ocelot_mact_read_macaccess(struct ocelot *ocelot) +{ + return ocelot_read(ocelot, ANA_TABLES_MACACCESS); +} + static inline int ocelot_mact_wait_for_completion(struct ocelot *ocelot) { - unsigned int val, timeout = 10; + u32 val; - /* Wait for the issued mac table command to be completed, or timeout. - * When the command read from ANA_TABLES_MACACCESS is - * MACACCESS_CMD_IDLE, the issued command completed successfully. - */ - do { - val = ocelot_read(ocelot, ANA_TABLES_MACACCESS); - val &= ANA_TABLES_MACACCESS_MAC_TABLE_CMD_M; - } while (val != MACACCESS_CMD_IDLE && timeout--); - - if (!timeout) - return -ETIMEDOUT; - - return 0; + return readx_poll_timeout(ocelot_mact_read_macaccess, + ocelot, val, + (val & ANA_TABLES_MACACCESS_MAC_TABLE_CMD_M) == + MACACCESS_CMD_IDLE, + TABLE_UPDATE_SLEEP_US, TABLE_UPDATE_TIMEOUT_US); } static void ocelot_mact_select(struct ocelot *ocelot, @@ -82,26 +56,38 @@ } -static int ocelot_mact_learn(struct ocelot *ocelot, int port, - const unsigned char mac[ETH_ALEN], - unsigned int vid, - enum macaccess_entry_type type) +int ocelot_mact_learn(struct ocelot *ocelot, int port, + const unsigned char mac[ETH_ALEN], + unsigned int vid, enum macaccess_entry_type type) { + u32 cmd = ANA_TABLES_MACACCESS_VALID | + ANA_TABLES_MACACCESS_DEST_IDX(port) | + ANA_TABLES_MACACCESS_ENTRYTYPE(type) | + ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_LEARN); + unsigned int mc_ports; + + /* Set MAC_CPU_COPY if the CPU port is used by a multicast entry */ + if (type == ENTRYTYPE_MACv4) + mc_ports = (mac[1] << 8) | mac[2]; + else if (type == ENTRYTYPE_MACv6) + mc_ports = (mac[0] << 8) | mac[1]; + else + mc_ports = 0; + + if (mc_ports & BIT(ocelot->num_phys_ports)) + cmd |= ANA_TABLES_MACACCESS_MAC_CPU_COPY; + ocelot_mact_select(ocelot, mac, vid); /* Issue a write command */ - ocelot_write(ocelot, ANA_TABLES_MACACCESS_VALID | - ANA_TABLES_MACACCESS_DEST_IDX(port) | - ANA_TABLES_MACACCESS_ENTRYTYPE(type) | - ANA_TABLES_MACACCESS_MAC_TABLE_CMD(MACACCESS_CMD_LEARN), - ANA_TABLES_MACACCESS); + ocelot_write(ocelot, cmd, ANA_TABLES_MACACCESS); return ocelot_mact_wait_for_completion(ocelot); } +EXPORT_SYMBOL(ocelot_mact_learn); -static int ocelot_mact_forget(struct ocelot *ocelot, - const unsigned char mac[ETH_ALEN], - unsigned int vid) +int ocelot_mact_forget(struct ocelot *ocelot, + const unsigned char mac[ETH_ALEN], unsigned int vid) { ocelot_mact_select(ocelot, mac, vid); @@ -112,6 +98,7 @@ return ocelot_mact_wait_for_completion(ocelot); } +EXPORT_SYMBOL(ocelot_mact_forget); static void ocelot_mact_init(struct ocelot *ocelot) { @@ -129,23 +116,35 @@ ocelot_write(ocelot, MACACCESS_CMD_INIT, ANA_TABLES_MACACCESS); } +static void ocelot_vcap_enable(struct ocelot *ocelot, int port) +{ + ocelot_write_gix(ocelot, ANA_PORT_VCAP_S2_CFG_S2_ENA | + ANA_PORT_VCAP_S2_CFG_S2_IP6_CFG(0xa), + ANA_PORT_VCAP_S2_CFG, port); + + ocelot_write_gix(ocelot, ANA_PORT_VCAP_CFG_S1_ENA, + ANA_PORT_VCAP_CFG, port); + + ocelot_rmw_gix(ocelot, REW_PORT_CFG_ES0_EN, + REW_PORT_CFG_ES0_EN, + REW_PORT_CFG, port); +} + +static inline u32 ocelot_vlant_read_vlanaccess(struct ocelot *ocelot) +{ + return ocelot_read(ocelot, ANA_TABLES_VLANACCESS); +} + static inline int ocelot_vlant_wait_for_completion(struct ocelot *ocelot) { - unsigned int val, timeout = 10; + u32 val; - /* Wait for the issued vlan table command to be completed, or timeout. - * When the command read from ANA_TABLES_VLANACCESS is - * VLANACCESS_CMD_IDLE, the issued command completed successfully. - */ - do { - val = ocelot_read(ocelot, ANA_TABLES_VLANACCESS); - val &= ANA_TABLES_VLANACCESS_VLAN_TBL_CMD_M; - } while (val != ANA_TABLES_VLANACCESS_CMD_IDLE && timeout--); - - if (!timeout) - return -ETIMEDOUT; - - return 0; + return readx_poll_timeout(ocelot_vlant_read_vlanaccess, + ocelot, + val, + (val & ANA_TABLES_VLANACCESS_VLAN_TBL_CMD_M) == + ANA_TABLES_VLANACCESS_CMD_IDLE, + TABLE_UPDATE_SLEEP_US, TABLE_UPDATE_TIMEOUT_US); } static int ocelot_vlant_set_mask(struct ocelot *ocelot, u16 vid, u32 mask) @@ -161,147 +160,159 @@ return ocelot_vlant_wait_for_completion(ocelot); } -static void ocelot_vlan_mode(struct ocelot_port *port, - netdev_features_t features) +static int ocelot_port_set_native_vlan(struct ocelot *ocelot, int port, + u16 vid) { - struct ocelot *ocelot = port->ocelot; - u8 p = port->chip_port; - u32 val; + struct ocelot_port *ocelot_port = ocelot->ports[port]; + u32 val = 0; - /* Filtering */ - val = ocelot_read(ocelot, ANA_VLANMASK); - if (features & NETIF_F_HW_VLAN_CTAG_FILTER) - val |= BIT(p); - else - val &= ~BIT(p); - ocelot_write(ocelot, val, ANA_VLANMASK); -} + if (ocelot_port->vid != vid) { + /* Always permit deleting the native VLAN (vid = 0) */ + if (ocelot_port->vid && vid) { + dev_err(ocelot->dev, + "Port already has a native VLAN: %d\n", + ocelot_port->vid); + return -EBUSY; + } + ocelot_port->vid = vid; + } -static void ocelot_vlan_port_apply(struct ocelot *ocelot, - struct ocelot_port *port) -{ - u32 val; + ocelot_rmw_gix(ocelot, REW_PORT_VLAN_CFG_PORT_VID(vid), + REW_PORT_VLAN_CFG_PORT_VID_M, + REW_PORT_VLAN_CFG, port); - /* Ingress clasification (ANA_PORT_VLAN_CFG) */ - /* Default vlan to clasify for untagged frames (may be zero) */ - val = ANA_PORT_VLAN_CFG_VLAN_VID(port->pvid); - if (port->vlan_aware) - val |= ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA | - ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1); - - ocelot_rmw_gix(ocelot, val, - ANA_PORT_VLAN_CFG_VLAN_VID_M | - ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA | - ANA_PORT_VLAN_CFG_VLAN_POP_CNT_M, - ANA_PORT_VLAN_CFG, port->chip_port); - - /* Drop frames with multicast source address */ - val = ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA; - if (port->vlan_aware && !port->vid) + if (ocelot_port->vlan_aware && !ocelot_port->vid) /* If port is vlan-aware and tagged, drop untagged and priority * tagged frames. */ - val |= ANA_PORT_DROP_CFG_DROP_UNTAGGED_ENA | + val = ANA_PORT_DROP_CFG_DROP_UNTAGGED_ENA | + ANA_PORT_DROP_CFG_DROP_PRIO_S_TAGGED_ENA | + ANA_PORT_DROP_CFG_DROP_PRIO_C_TAGGED_ENA; + ocelot_rmw_gix(ocelot, val, + ANA_PORT_DROP_CFG_DROP_UNTAGGED_ENA | ANA_PORT_DROP_CFG_DROP_PRIO_S_TAGGED_ENA | - ANA_PORT_DROP_CFG_DROP_PRIO_C_TAGGED_ENA; - ocelot_write_gix(ocelot, val, ANA_PORT_DROP_CFG, port->chip_port); + ANA_PORT_DROP_CFG_DROP_PRIO_C_TAGGED_ENA, + ANA_PORT_DROP_CFG, port); - /* Egress configuration (REW_TAG_CFG): VLAN tag type to 8021Q. */ - val = REW_TAG_CFG_TAG_TPID_CFG(0); - - if (port->vlan_aware) { - if (port->vid) + if (ocelot_port->vlan_aware) { + if (ocelot_port->vid) /* Tag all frames except when VID == DEFAULT_VLAN */ - val |= REW_TAG_CFG_TAG_CFG(1); + val = REW_TAG_CFG_TAG_CFG(1); else /* Tag all frames */ - val |= REW_TAG_CFG_TAG_CFG(3); + val = REW_TAG_CFG_TAG_CFG(3); + } else { + /* Port tagging disabled. */ + val = REW_TAG_CFG_TAG_CFG(0); } ocelot_rmw_gix(ocelot, val, - REW_TAG_CFG_TAG_TPID_CFG_M | REW_TAG_CFG_TAG_CFG_M, - REW_TAG_CFG, port->chip_port); + REW_TAG_CFG, port); - /* Set default VLAN and tag type to 8021Q. */ - val = REW_PORT_VLAN_CFG_PORT_TPID(ETH_P_8021Q) | - REW_PORT_VLAN_CFG_PORT_VID(port->vid); - ocelot_rmw_gix(ocelot, val, - REW_PORT_VLAN_CFG_PORT_TPID_M | - REW_PORT_VLAN_CFG_PORT_VID_M, - REW_PORT_VLAN_CFG, port->chip_port); + return 0; } -static int ocelot_vlan_vid_add(struct net_device *dev, u16 vid, bool pvid, - bool untagged) +int ocelot_port_vlan_filtering(struct ocelot *ocelot, int port, + bool vlan_aware, struct switchdev_trans *trans) { - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; + struct ocelot_port *ocelot_port = ocelot->ports[port]; + u32 val; + + if (switchdev_trans_ph_prepare(trans)) { + struct ocelot_vcap_block *block = &ocelot->block[VCAP_IS1]; + struct ocelot_vcap_filter *filter; + + list_for_each_entry(filter, &block->rules, list) { + if (filter->ingress_port_mask & BIT(port) && + filter->action.vid_replace_ena) { + dev_err(ocelot->dev, + "Cannot change VLAN state with vlan modify rules active\n"); + return -EBUSY; + } + } + + return 0; + } + + ocelot_port->vlan_aware = vlan_aware; + + if (vlan_aware) + val = ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA | + ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1); + else + val = 0; + ocelot_rmw_gix(ocelot, val, + ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA | + ANA_PORT_VLAN_CFG_VLAN_POP_CNT_M, + ANA_PORT_VLAN_CFG, port); + + ocelot_port_set_native_vlan(ocelot, port, ocelot_port->vid); + + return 0; +} +EXPORT_SYMBOL(ocelot_port_vlan_filtering); + +/* Default vlan to clasify for untagged frames (may be zero) */ +static void ocelot_port_set_pvid(struct ocelot *ocelot, int port, u16 pvid) +{ + struct ocelot_port *ocelot_port = ocelot->ports[port]; + + ocelot_rmw_gix(ocelot, + ANA_PORT_VLAN_CFG_VLAN_VID(pvid), + ANA_PORT_VLAN_CFG_VLAN_VID_M, + ANA_PORT_VLAN_CFG, port); + + ocelot_port->pvid = pvid; +} + +int ocelot_vlan_add(struct ocelot *ocelot, int port, u16 vid, bool pvid, + bool untagged) +{ int ret; - /* Add the port MAC address to with the right VLAN information */ - ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr, vid, - ENTRYTYPE_LOCKED); - /* Make the port a member of the VLAN */ - ocelot->vlan_mask[vid] |= BIT(port->chip_port); + ocelot->vlan_mask[vid] |= BIT(port); ret = ocelot_vlant_set_mask(ocelot, vid, ocelot->vlan_mask[vid]); if (ret) return ret; /* Default ingress vlan classification */ if (pvid) - port->pvid = vid; + ocelot_port_set_pvid(ocelot, port, vid); /* Untagged egress vlan clasification */ - if (untagged && port->vid != vid) { - if (port->vid) { - dev_err(ocelot->dev, - "Port already has a native VLAN: %d\n", - port->vid); - return -EBUSY; - } - port->vid = vid; + if (untagged) { + ret = ocelot_port_set_native_vlan(ocelot, port, vid); + if (ret) + return ret; } - - ocelot_vlan_port_apply(ocelot, port); return 0; } +EXPORT_SYMBOL(ocelot_vlan_add); -static int ocelot_vlan_vid_del(struct net_device *dev, u16 vid) +int ocelot_vlan_del(struct ocelot *ocelot, int port, u16 vid) { - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; + struct ocelot_port *ocelot_port = ocelot->ports[port]; int ret; - /* 8021q removes VID 0 on module unload for all interfaces - * with VLAN filtering feature. We need to keep it to receive - * untagged traffic. - */ - if (vid == 0) - return 0; - - /* Del the port MAC address to with the right VLAN information */ - ocelot_mact_forget(ocelot, dev->dev_addr, vid); - /* Stop the port from being a member of the vlan */ - ocelot->vlan_mask[vid] &= ~BIT(port->chip_port); + ocelot->vlan_mask[vid] &= ~BIT(port); ret = ocelot_vlant_set_mask(ocelot, vid, ocelot->vlan_mask[vid]); if (ret) return ret; /* Ingress */ - if (port->pvid == vid) - port->pvid = 0; + if (ocelot_port->pvid == vid) + ocelot_port_set_pvid(ocelot, port, 0); /* Egress */ - if (port->vid == vid) - port->vid = 0; - - ocelot_vlan_port_apply(ocelot, port); + if (ocelot_port->vid == vid) + ocelot_port_set_native_vlan(ocelot, port, 0); return 0; } +EXPORT_SYMBOL(ocelot_vlan_del); static void ocelot_vlan_init(struct ocelot *ocelot) { @@ -325,16 +336,11 @@ ocelot->vlan_mask[0] = GENMASK(ocelot->num_phys_ports - 1, 0); ocelot_vlant_set_mask(ocelot, 0, ocelot->vlan_mask[0]); - /* Configure the CPU port to be VLAN aware */ - ocelot_write_gix(ocelot, ANA_PORT_VLAN_CFG_VLAN_VID(0) | - ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA | - ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1), - ANA_PORT_VLAN_CFG, ocelot->num_phys_ports); - /* Set vlan ingress filter mask to all ports but the CPU port by * default. */ - ocelot_write(ocelot, GENMASK(9, 0), ANA_VLANMASK); + ocelot_write(ocelot, GENMASK(ocelot->num_phys_ports - 1, 0), + ANA_VLANMASK); for (port = 0; port < ocelot->num_phys_ports; port++) { ocelot_write_gix(ocelot, 0, REW_PORT_VLAN_CFG, port); @@ -342,26 +348,72 @@ } } -/* Watermark encode - * Bit 8: Unit; 0:1, 1:16 - * Bit 7-0: Value to be multiplied with unit - */ -static u16 ocelot_wm_enc(u16 value) +static u32 ocelot_read_eq_avail(struct ocelot *ocelot, int port) { - if (value >= BIT(8)) - return BIT(8) | (value / 16); - - return value; + return ocelot_read_rix(ocelot, QSYS_SW_STATUS, port); } -static void ocelot_port_adjust_link(struct net_device *dev) +int ocelot_port_flush(struct ocelot *ocelot, int port) { - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; - u8 p = port->chip_port; - int speed, atop_wm, mode = 0; + unsigned int pause_ena; + int err, val; - switch (dev->phydev->speed) { + /* Disable dequeuing from the egress queues */ + ocelot_rmw_rix(ocelot, QSYS_PORT_MODE_DEQUEUE_DIS, + QSYS_PORT_MODE_DEQUEUE_DIS, + QSYS_PORT_MODE, port); + + /* Disable flow control */ + ocelot_fields_read(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, &pause_ena); + ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 0); + + /* Disable priority flow control */ + ocelot_fields_write(ocelot, port, + QSYS_SWITCH_PORT_MODE_TX_PFC_ENA, 0); + + /* Wait at least the time it takes to receive a frame of maximum length + * at the port. + * Worst-case delays for 10 kilobyte jumbo frames are: + * 8 ms on a 10M port + * 800 μs on a 100M port + * 80 μs on a 1G port + * 32 μs on a 2.5G port + */ + usleep_range(8000, 10000); + + /* Disable half duplex backpressure. */ + ocelot_rmw_rix(ocelot, 0, SYS_FRONT_PORT_MODE_HDX_MODE, + SYS_FRONT_PORT_MODE, port); + + /* Flush the queues associated with the port. */ + ocelot_rmw_gix(ocelot, REW_PORT_CFG_FLUSH_ENA, REW_PORT_CFG_FLUSH_ENA, + REW_PORT_CFG, port); + + /* Enable dequeuing from the egress queues. */ + ocelot_rmw_rix(ocelot, 0, QSYS_PORT_MODE_DEQUEUE_DIS, QSYS_PORT_MODE, + port); + + /* Wait until flushing is complete. */ + err = read_poll_timeout(ocelot_read_eq_avail, val, !val, + 100, 2000000, false, ocelot, port); + + /* Clear flushing again. */ + ocelot_rmw_gix(ocelot, 0, REW_PORT_CFG_FLUSH_ENA, REW_PORT_CFG, port); + + /* Re-enable flow control */ + ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, pause_ena); + + return err; +} +EXPORT_SYMBOL(ocelot_port_flush); + +void ocelot_adjust_link(struct ocelot *ocelot, int port, + struct phy_device *phydev) +{ + struct ocelot_port *ocelot_port = ocelot->ports[port]; + int speed, mode = 0; + + switch (phydev->speed) { case SPEED_10: speed = OCELOT_SPEED_10; break; @@ -377,87 +429,54 @@ mode = DEV_MAC_MODE_CFG_GIGA_MODE_ENA; break; default: - netdev_err(dev, "Unsupported PHY speed: %d\n", - dev->phydev->speed); + dev_err(ocelot->dev, "Unsupported PHY speed on port %d: %d\n", + port, phydev->speed); return; } - phy_print_status(dev->phydev); + phy_print_status(phydev); - if (!dev->phydev->link) + if (!phydev->link) return; /* Only full duplex supported for now */ - ocelot_port_writel(port, DEV_MAC_MODE_CFG_FDX_ENA | + ocelot_port_writel(ocelot_port, DEV_MAC_MODE_CFG_FDX_ENA | mode, DEV_MAC_MODE_CFG); - /* Set MAC IFG Gaps - * FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 0 - * !FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 5 - */ - ocelot_port_writel(port, DEV_MAC_IFG_CFG_TX_IFG(5), DEV_MAC_IFG_CFG); - - /* Load seed (0) and set MAC HDX late collision */ - ocelot_port_writel(port, DEV_MAC_HDX_CFG_LATE_COL_POS(67) | - DEV_MAC_HDX_CFG_SEED_LOAD, - DEV_MAC_HDX_CFG); - mdelay(1); - ocelot_port_writel(port, DEV_MAC_HDX_CFG_LATE_COL_POS(67), - DEV_MAC_HDX_CFG); - /* Disable HDX fast control */ - ocelot_port_writel(port, DEV_PORT_MISC_HDX_FAST_DIS, DEV_PORT_MISC); + ocelot_port_writel(ocelot_port, DEV_PORT_MISC_HDX_FAST_DIS, + DEV_PORT_MISC); /* SGMII only for now */ - ocelot_port_writel(port, PCS1G_MODE_CFG_SGMII_MODE_ENA, PCS1G_MODE_CFG); - ocelot_port_writel(port, PCS1G_SD_CFG_SD_SEL, PCS1G_SD_CFG); + ocelot_port_writel(ocelot_port, PCS1G_MODE_CFG_SGMII_MODE_ENA, + PCS1G_MODE_CFG); + ocelot_port_writel(ocelot_port, PCS1G_SD_CFG_SD_SEL, PCS1G_SD_CFG); /* Enable PCS */ - ocelot_port_writel(port, PCS1G_CFG_PCS_ENA, PCS1G_CFG); + ocelot_port_writel(ocelot_port, PCS1G_CFG_PCS_ENA, PCS1G_CFG); /* No aneg on SGMII */ - ocelot_port_writel(port, 0, PCS1G_ANEG_CFG); + ocelot_port_writel(ocelot_port, 0, PCS1G_ANEG_CFG); /* No loopback */ - ocelot_port_writel(port, 0, PCS1G_LB_CFG); - - /* Set Max Length and maximum tags allowed */ - ocelot_port_writel(port, VLAN_ETH_FRAME_LEN, DEV_MAC_MAXLEN_CFG); - ocelot_port_writel(port, DEV_MAC_TAGS_CFG_TAG_ID(ETH_P_8021AD) | - DEV_MAC_TAGS_CFG_VLAN_AWR_ENA | - DEV_MAC_TAGS_CFG_VLAN_LEN_AWR_ENA, - DEV_MAC_TAGS_CFG); + ocelot_port_writel(ocelot_port, 0, PCS1G_LB_CFG); /* Enable MAC module */ - ocelot_port_writel(port, DEV_MAC_ENA_CFG_RX_ENA | + ocelot_port_writel(ocelot_port, DEV_MAC_ENA_CFG_RX_ENA | DEV_MAC_ENA_CFG_TX_ENA, DEV_MAC_ENA_CFG); /* Take MAC, Port, Phy (intern) and PCS (SGMII/Serdes) clock out of * reset */ - ocelot_port_writel(port, DEV_CLOCK_CFG_LINK_SPEED(speed), + ocelot_port_writel(ocelot_port, DEV_CLOCK_CFG_LINK_SPEED(speed), DEV_CLOCK_CFG); - - /* Set SMAC of Pause frame (00:00:00:00:00:00) */ - ocelot_port_writel(port, 0, DEV_MAC_FC_MAC_HIGH_CFG); - ocelot_port_writel(port, 0, DEV_MAC_FC_MAC_LOW_CFG); /* No PFC */ ocelot_write_gix(ocelot, ANA_PFC_PFC_CFG_FC_LINK_SPEED(speed), - ANA_PFC_PFC_CFG, p); - - /* Set Pause WM hysteresis - * 152 = 6 * VLAN_ETH_FRAME_LEN / OCELOT_BUFFER_CELL_SZ - * 101 = 4 * VLAN_ETH_FRAME_LEN / OCELOT_BUFFER_CELL_SZ - */ - ocelot_write_rix(ocelot, SYS_PAUSE_CFG_PAUSE_ENA | - SYS_PAUSE_CFG_PAUSE_STOP(101) | - SYS_PAUSE_CFG_PAUSE_START(152), SYS_PAUSE_CFG, p); + ANA_PFC_PFC_CFG, port); /* Core: Enable port for frame transfer */ - ocelot_write_rix(ocelot, QSYS_SWITCH_PORT_MODE_INGRESS_DROP_MODE | - QSYS_SWITCH_PORT_MODE_SCH_NEXT_CFG(1) | - QSYS_SWITCH_PORT_MODE_PORT_ENA, - QSYS_SWITCH_PORT_MODE, p); + ocelot_fields_write(ocelot, port, + QSYS_SWITCH_PORT_MODE_PORT_ENA, 1); /* Flow control */ ocelot_write_rix(ocelot, SYS_MAC_FC_CFG_PAUSE_VAL_CFG(0xffff) | @@ -465,273 +484,149 @@ SYS_MAC_FC_CFG_ZERO_PAUSE_ENA | SYS_MAC_FC_CFG_FC_LATENCY_CFG(0x7) | SYS_MAC_FC_CFG_FC_LINK_SPEED(speed), - SYS_MAC_FC_CFG, p); - ocelot_write_rix(ocelot, 0, ANA_POL_FLOWC, p); - - /* Tail dropping watermark */ - atop_wm = (ocelot->shared_queue_sz - 9 * VLAN_ETH_FRAME_LEN) / OCELOT_BUFFER_CELL_SZ; - ocelot_write_rix(ocelot, ocelot_wm_enc(9 * VLAN_ETH_FRAME_LEN), - SYS_ATOP, p); - ocelot_write(ocelot, ocelot_wm_enc(atop_wm), SYS_ATOP_TOT_CFG); + SYS_MAC_FC_CFG, port); + ocelot_write_rix(ocelot, 0, ANA_POL_FLOWC, port); } +EXPORT_SYMBOL(ocelot_adjust_link); -static int ocelot_port_open(struct net_device *dev) +void ocelot_port_enable(struct ocelot *ocelot, int port, + struct phy_device *phy) { - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; - int err; - /* Enable receiving frames on the port, and activate auto-learning of * MAC addresses. */ ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_LEARNAUTO | ANA_PORT_PORT_CFG_RECV_ENA | - ANA_PORT_PORT_CFG_PORTID_VAL(port->chip_port), - ANA_PORT_PORT_CFG, port->chip_port); - - err = phy_connect_direct(dev, port->phy, &ocelot_port_adjust_link, - PHY_INTERFACE_MODE_NA); - if (err) { - netdev_err(dev, "Could not attach to PHY\n"); - return err; - } - - dev->phydev = port->phy; - - phy_attached_info(port->phy); - phy_start(port->phy); - return 0; + ANA_PORT_PORT_CFG_PORTID_VAL(port), + ANA_PORT_PORT_CFG, port); } +EXPORT_SYMBOL(ocelot_port_enable); -static int ocelot_port_stop(struct net_device *dev) +void ocelot_port_disable(struct ocelot *ocelot, int port) { - struct ocelot_port *port = netdev_priv(dev); + struct ocelot_port *ocelot_port = ocelot->ports[port]; - phy_disconnect(port->phy); - - dev->phydev = NULL; - - ocelot_port_writel(port, 0, DEV_MAC_ENA_CFG); - ocelot_rmw_rix(port->ocelot, 0, QSYS_SWITCH_PORT_MODE_PORT_ENA, - QSYS_SWITCH_PORT_MODE, port->chip_port); - return 0; + ocelot_port_writel(ocelot_port, 0, DEV_MAC_ENA_CFG); + ocelot_fields_write(ocelot, port, QSYS_SWITCH_PORT_MODE_PORT_ENA, 0); } +EXPORT_SYMBOL(ocelot_port_disable); -/* Generate the IFH for frame injection - * - * The IFH is a 128bit-value - * bit 127: bypass the analyzer processing - * bit 56-67: destination mask - * bit 28-29: pop_cnt: 3 disables all rewriting of the frame - * bit 20-27: cpu extraction queue mask - * bit 16: tag type 0: C-tag, 1: S-tag - * bit 0-11: VID - */ -static int ocelot_gen_ifh(u32 *ifh, struct frame_info *info) +void ocelot_port_add_txtstamp_skb(struct ocelot *ocelot, int port, + struct sk_buff *clone) { - ifh[0] = IFH_INJ_BYPASS; - ifh[1] = (0xf00 & info->port) >> 8; - ifh[2] = (0xff & info->port) << 24; - ifh[3] = (info->tag_type << 16) | info->vid; + struct ocelot_port *ocelot_port = ocelot->ports[port]; - return 0; + spin_lock(&ocelot_port->ts_id_lock); + + skb_shinfo(clone)->tx_flags |= SKBTX_IN_PROGRESS; + /* Store timestamp ID in cb[0] of sk_buff */ + clone->cb[0] = ocelot_port->ts_id; + ocelot_port->ts_id = (ocelot_port->ts_id + 1) % 4; + skb_queue_tail(&ocelot_port->tx_skbs, clone); + + spin_unlock(&ocelot_port->ts_id_lock); } +EXPORT_SYMBOL(ocelot_port_add_txtstamp_skb); -static int ocelot_port_xmit(struct sk_buff *skb, struct net_device *dev) +static void ocelot_get_hwtimestamp(struct ocelot *ocelot, + struct timespec64 *ts) { - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; - u32 val, ifh[IFH_LEN]; - struct frame_info info = {}; - u8 grp = 0; /* Send everything on CPU group 0 */ - unsigned int i, count, last; - - val = ocelot_read(ocelot, QS_INJ_STATUS); - if (!(val & QS_INJ_STATUS_FIFO_RDY(BIT(grp))) || - (val & QS_INJ_STATUS_WMARK_REACHED(BIT(grp)))) - return NETDEV_TX_BUSY; - - ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) | - QS_INJ_CTRL_SOF, QS_INJ_CTRL, grp); - - info.port = BIT(port->chip_port); - info.tag_type = IFH_TAG_TYPE_C; - info.vid = skb_vlan_tag_get(skb); - ocelot_gen_ifh(ifh, &info); - - for (i = 0; i < IFH_LEN; i++) - ocelot_write_rix(ocelot, (__force u32)cpu_to_be32(ifh[i]), - QS_INJ_WR, grp); - - count = (skb->len + 3) / 4; - last = skb->len % 4; - for (i = 0; i < count; i++) { - ocelot_write_rix(ocelot, ((u32 *)skb->data)[i], QS_INJ_WR, grp); - } - - /* Add padding */ - while (i < (OCELOT_BUFFER_CELL_SZ / 4)) { - ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp); - i++; - } - - /* Indicate EOF and valid bytes in last word */ - ocelot_write_rix(ocelot, QS_INJ_CTRL_GAP_SIZE(1) | - QS_INJ_CTRL_VLD_BYTES(skb->len < OCELOT_BUFFER_CELL_SZ ? 0 : last) | - QS_INJ_CTRL_EOF, - QS_INJ_CTRL, grp); - - /* Add dummy CRC */ - ocelot_write_rix(ocelot, 0, QS_INJ_WR, grp); - skb_tx_timestamp(skb); - - dev->stats.tx_packets++; - dev->stats.tx_bytes += skb->len; - dev_kfree_skb_any(skb); - - return NETDEV_TX_OK; -} - -static void ocelot_mact_mc_reset(struct ocelot_port *port) -{ - struct ocelot *ocelot = port->ocelot; - struct netdev_hw_addr *ha, *n; - - /* Free and forget all the MAC addresses stored in the port private mc - * list. These are mc addresses that were previously added by calling - * ocelot_mact_mc_add(). - */ - list_for_each_entry_safe(ha, n, &port->mc, list) { - ocelot_mact_forget(ocelot, ha->addr, port->pvid); - list_del(&ha->list); - kfree(ha); - } -} - -static int ocelot_mact_mc_add(struct ocelot_port *port, - struct netdev_hw_addr *hw_addr) -{ - struct ocelot *ocelot = port->ocelot; - struct netdev_hw_addr *ha = kzalloc(sizeof(*ha), GFP_ATOMIC); - - if (!ha) - return -ENOMEM; - - memcpy(ha, hw_addr, sizeof(*ha)); - list_add_tail(&ha->list, &port->mc); - - ocelot_mact_learn(ocelot, PGID_CPU, ha->addr, port->pvid, - ENTRYTYPE_LOCKED); - - return 0; -} - -static void ocelot_set_rx_mode(struct net_device *dev) -{ - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; - struct netdev_hw_addr *ha; - int i; + unsigned long flags; u32 val; - /* This doesn't handle promiscuous mode because the bridge core is - * setting IFF_PROMISC on all slave interfaces and all frames would be - * forwarded to the CPU port. - */ - val = GENMASK(ocelot->num_phys_ports - 1, 0); - for (i = ocelot->num_phys_ports + 1; i < PGID_CPU; i++) - ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i); + spin_lock_irqsave(&ocelot->ptp_clock_lock, flags); - /* Handle the device multicast addresses. First remove all the - * previously installed addresses and then add the latest ones to the - * mac table. - */ - ocelot_mact_mc_reset(port); - netdev_for_each_mc_addr(ha, dev) - ocelot_mact_mc_add(port, ha); + /* Read current PTP time to get seconds */ + val = ocelot_read_rix(ocelot, PTP_PIN_CFG, TOD_ACC_PIN); + + val &= ~(PTP_PIN_CFG_SYNC | PTP_PIN_CFG_ACTION_MASK | PTP_PIN_CFG_DOM); + val |= PTP_PIN_CFG_ACTION(PTP_PIN_ACTION_SAVE); + ocelot_write_rix(ocelot, val, PTP_PIN_CFG, TOD_ACC_PIN); + ts->tv_sec = ocelot_read_rix(ocelot, PTP_PIN_TOD_SEC_LSB, TOD_ACC_PIN); + + /* Read packet HW timestamp from FIFO */ + val = ocelot_read(ocelot, SYS_PTP_TXSTAMP); + ts->tv_nsec = SYS_PTP_TXSTAMP_PTP_TXSTAMP(val); + + /* Sec has incremented since the ts was registered */ + if ((ts->tv_sec & 0x1) != !!(val & SYS_PTP_TXSTAMP_PTP_TXSTAMP_SEC)) + ts->tv_sec--; + + spin_unlock_irqrestore(&ocelot->ptp_clock_lock, flags); } -static int ocelot_port_get_phys_port_name(struct net_device *dev, - char *buf, size_t len) +void ocelot_get_txtstamp(struct ocelot *ocelot) { - struct ocelot_port *port = netdev_priv(dev); - int ret; + int budget = OCELOT_PTP_QUEUE_SZ; - ret = snprintf(buf, len, "p%d", port->chip_port); - if (ret >= len) - return -EINVAL; + while (budget--) { + struct sk_buff *skb, *skb_tmp, *skb_match = NULL; + struct skb_shared_hwtstamps shhwtstamps; + struct ocelot_port *port; + struct timespec64 ts; + unsigned long flags; + u32 val, id, txport; - return 0; + val = ocelot_read(ocelot, SYS_PTP_STATUS); + + /* Check if a timestamp can be retrieved */ + if (!(val & SYS_PTP_STATUS_PTP_MESS_VLD)) + break; + + WARN_ON(val & SYS_PTP_STATUS_PTP_OVFL); + + /* Retrieve the ts ID and Tx port */ + id = SYS_PTP_STATUS_PTP_MESS_ID_X(val); + txport = SYS_PTP_STATUS_PTP_MESS_TXPORT_X(val); + + /* Retrieve its associated skb */ + port = ocelot->ports[txport]; + + spin_lock_irqsave(&port->tx_skbs.lock, flags); + + skb_queue_walk_safe(&port->tx_skbs, skb, skb_tmp) { + if (skb->cb[0] != id) + continue; + __skb_unlink(skb, &port->tx_skbs); + skb_match = skb; + break; + } + + spin_unlock_irqrestore(&port->tx_skbs.lock, flags); + + if (WARN_ON(!skb_match)) + continue; + + /* Get the h/w timestamp */ + ocelot_get_hwtimestamp(ocelot, &ts); + + /* Set the timestamp into the skb */ + memset(&shhwtstamps, 0, sizeof(shhwtstamps)); + shhwtstamps.hwtstamp = ktime_set(ts.tv_sec, ts.tv_nsec); + skb_complete_tx_timestamp(skb_match, &shhwtstamps); + + /* Next ts */ + ocelot_write(ocelot, SYS_PTP_NXT_PTP_NXT, SYS_PTP_NXT); + } } +EXPORT_SYMBOL(ocelot_get_txtstamp); -static int ocelot_port_set_mac_address(struct net_device *dev, void *p) +int ocelot_fdb_add(struct ocelot *ocelot, int port, + const unsigned char *addr, u16 vid) { - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; - const struct sockaddr *addr = p; + struct ocelot_port *ocelot_port = ocelot->ports[port]; + int pgid = port; - /* Learn the new net device MAC address in the mac table. */ - ocelot_mact_learn(ocelot, PGID_CPU, addr->sa_data, port->pvid, - ENTRYTYPE_LOCKED); - /* Then forget the previous one. */ - ocelot_mact_forget(ocelot, dev->dev_addr, port->pvid); - - ether_addr_copy(dev->dev_addr, addr->sa_data); - return 0; -} - -static void ocelot_get_stats64(struct net_device *dev, - struct rtnl_link_stats64 *stats) -{ - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; - - /* Configure the port to read the stats from */ - ocelot_write(ocelot, SYS_STAT_CFG_STAT_VIEW(port->chip_port), - SYS_STAT_CFG); - - /* Get Rx stats */ - stats->rx_bytes = ocelot_read(ocelot, SYS_COUNT_RX_OCTETS); - stats->rx_packets = ocelot_read(ocelot, SYS_COUNT_RX_SHORTS) + - ocelot_read(ocelot, SYS_COUNT_RX_FRAGMENTS) + - ocelot_read(ocelot, SYS_COUNT_RX_JABBERS) + - ocelot_read(ocelot, SYS_COUNT_RX_LONGS) + - ocelot_read(ocelot, SYS_COUNT_RX_64) + - ocelot_read(ocelot, SYS_COUNT_RX_65_127) + - ocelot_read(ocelot, SYS_COUNT_RX_128_255) + - ocelot_read(ocelot, SYS_COUNT_RX_256_1023) + - ocelot_read(ocelot, SYS_COUNT_RX_1024_1526) + - ocelot_read(ocelot, SYS_COUNT_RX_1527_MAX); - stats->multicast = ocelot_read(ocelot, SYS_COUNT_RX_MULTICAST); - stats->rx_dropped = dev->stats.rx_dropped; - - /* Get Tx stats */ - stats->tx_bytes = ocelot_read(ocelot, SYS_COUNT_TX_OCTETS); - stats->tx_packets = ocelot_read(ocelot, SYS_COUNT_TX_64) + - ocelot_read(ocelot, SYS_COUNT_TX_65_127) + - ocelot_read(ocelot, SYS_COUNT_TX_128_511) + - ocelot_read(ocelot, SYS_COUNT_TX_512_1023) + - ocelot_read(ocelot, SYS_COUNT_TX_1024_1526) + - ocelot_read(ocelot, SYS_COUNT_TX_1527_MAX); - stats->tx_dropped = ocelot_read(ocelot, SYS_COUNT_TX_DROPS) + - ocelot_read(ocelot, SYS_COUNT_TX_AGING); - stats->collisions = ocelot_read(ocelot, SYS_COUNT_TX_COLLISION); -} - -static int ocelot_fdb_add(struct ndmsg *ndm, struct nlattr *tb[], - struct net_device *dev, const unsigned char *addr, - u16 vid, u16 flags) -{ - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; + if (port == ocelot->npi) + pgid = PGID_CPU; if (!vid) { - if (!port->vlan_aware) + if (!ocelot_port->vlan_aware) /* If the bridge is not VLAN aware and no VID was * provided, set it to pvid to ensure the MAC entry * matches incoming untagged packets */ - vid = port->pvid; + vid = ocelot_port->pvid; else /* If the bridge is VLAN aware a VID must be provided as * otherwise the learnt entry wouldn't match any frame. @@ -739,30 +634,21 @@ return -EINVAL; } - return ocelot_mact_learn(ocelot, port->chip_port, addr, vid, - ENTRYTYPE_LOCKED); + return ocelot_mact_learn(ocelot, pgid, addr, vid, ENTRYTYPE_LOCKED); } +EXPORT_SYMBOL(ocelot_fdb_add); -static int ocelot_fdb_del(struct ndmsg *ndm, struct nlattr *tb[], - struct net_device *dev, - const unsigned char *addr, u16 vid) +int ocelot_fdb_del(struct ocelot *ocelot, int port, + const unsigned char *addr, u16 vid) { - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; - return ocelot_mact_forget(ocelot, addr, vid); } +EXPORT_SYMBOL(ocelot_fdb_del); -struct ocelot_dump_ctx { - struct net_device *dev; - struct sk_buff *skb; - struct netlink_callback *cb; - int idx; -}; - -static int ocelot_fdb_do_dump(struct ocelot_mact_entry *entry, - struct ocelot_dump_ctx *dump) +int ocelot_port_fdb_do_dump(const unsigned char *addr, u16 vid, + bool is_static, void *data) { + struct ocelot_dump_ctx *dump = data; u32 portid = NETLINK_CB(dump->cb->skb).portid; u32 seq = dump->cb->nlh->nlmsg_seq; struct nlmsghdr *nlh; @@ -783,12 +669,12 @@ ndm->ndm_flags = NTF_SELF; ndm->ndm_type = 0; ndm->ndm_ifindex = dump->dev->ifindex; - ndm->ndm_state = NUD_REACHABLE; + ndm->ndm_state = is_static ? NUD_NOARP : NUD_REACHABLE; - if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, entry->mac)) + if (nla_put(dump->skb, NDA_LLADDR, ETH_ALEN, addr)) goto nla_put_failure; - if (entry->vid && nla_put_u16(dump->skb, NDA_VLAN, entry->vid)) + if (vid && nla_put_u16(dump->skb, NDA_VLAN, vid)) goto nla_put_failure; nlmsg_end(dump->skb, nlh); @@ -801,13 +687,13 @@ nlmsg_cancel(dump->skb, nlh); return -EMSGSIZE; } +EXPORT_SYMBOL(ocelot_port_fdb_do_dump); -static inline int ocelot_mact_read(struct ocelot_port *port, int row, int col, - struct ocelot_mact_entry *entry) +static int ocelot_mact_read(struct ocelot *ocelot, int port, int row, int col, + struct ocelot_mact_entry *entry) { - struct ocelot *ocelot = port->ocelot; - char mac[ETH_ALEN]; u32 val, dst, macl, mach; + char mac[ETH_ALEN]; /* Set row and column to read from */ ocelot_field_write(ocelot, ANA_TABLES_MACTINDX_M_INDEX, row); @@ -830,7 +716,7 @@ * do not report it. */ dst = (val & ANA_TABLES_MACACCESS_DEST_IDX_M) >> 3; - if (dst != port->chip_port) + if (dst != port) return -EINVAL; /* Get the entry's MAC address and VLAN id */ @@ -850,90 +736,107 @@ return 0; } -static int ocelot_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb, - struct net_device *dev, - struct net_device *filter_dev, int *idx) +int ocelot_fdb_dump(struct ocelot *ocelot, int port, + dsa_fdb_dump_cb_t *cb, void *data) { - struct ocelot_port *port = netdev_priv(dev); - int i, j, ret = 0; - struct ocelot_dump_ctx dump = { - .dev = dev, - .skb = skb, - .cb = cb, - .idx = *idx, - }; + int i, j; - struct ocelot_mact_entry entry; - - /* Loop through all the mac tables entries. There are 1024 rows of 4 - * entries. - */ - for (i = 0; i < 1024; i++) { + /* Loop through all the mac tables entries. */ + for (i = 0; i < ocelot->num_mact_rows; i++) { for (j = 0; j < 4; j++) { - ret = ocelot_mact_read(port, i, j, &entry); + struct ocelot_mact_entry entry; + bool is_static; + int ret; + + ret = ocelot_mact_read(ocelot, port, i, j, &entry); /* If the entry is invalid (wrong port, invalid...), * skip it. */ if (ret == -EINVAL) continue; else if (ret) - goto end; + return ret; - ret = ocelot_fdb_do_dump(&entry, &dump); + is_static = (entry.type == ENTRYTYPE_LOCKED); + + ret = cb(entry.mac, entry.vid, is_static, data); if (ret) - goto end; + return ret; } } -end: - *idx = dump.idx; - return ret; -} - -static int ocelot_vlan_rx_add_vid(struct net_device *dev, __be16 proto, - u16 vid) -{ - return ocelot_vlan_vid_add(dev, vid, false, false); -} - -static int ocelot_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, - u16 vid) -{ - return ocelot_vlan_vid_del(dev, vid); -} - -static int ocelot_set_features(struct net_device *dev, - netdev_features_t features) -{ - struct ocelot_port *port = netdev_priv(dev); - netdev_features_t changed = dev->features ^ features; - - if (changed & NETIF_F_HW_VLAN_CTAG_FILTER) - ocelot_vlan_mode(port, features); - return 0; } +EXPORT_SYMBOL(ocelot_fdb_dump); -static const struct net_device_ops ocelot_port_netdev_ops = { - .ndo_open = ocelot_port_open, - .ndo_stop = ocelot_port_stop, - .ndo_start_xmit = ocelot_port_xmit, - .ndo_set_rx_mode = ocelot_set_rx_mode, - .ndo_get_phys_port_name = ocelot_port_get_phys_port_name, - .ndo_set_mac_address = ocelot_port_set_mac_address, - .ndo_get_stats64 = ocelot_get_stats64, - .ndo_fdb_add = ocelot_fdb_add, - .ndo_fdb_del = ocelot_fdb_del, - .ndo_fdb_dump = ocelot_fdb_dump, - .ndo_vlan_rx_add_vid = ocelot_vlan_rx_add_vid, - .ndo_vlan_rx_kill_vid = ocelot_vlan_rx_kill_vid, - .ndo_set_features = ocelot_set_features, -}; - -static void ocelot_get_strings(struct net_device *netdev, u32 sset, u8 *data) +int ocelot_hwstamp_get(struct ocelot *ocelot, int port, struct ifreq *ifr) { - struct ocelot_port *port = netdev_priv(netdev); - struct ocelot *ocelot = port->ocelot; + return copy_to_user(ifr->ifr_data, &ocelot->hwtstamp_config, + sizeof(ocelot->hwtstamp_config)) ? -EFAULT : 0; +} +EXPORT_SYMBOL(ocelot_hwstamp_get); + +int ocelot_hwstamp_set(struct ocelot *ocelot, int port, struct ifreq *ifr) +{ + struct ocelot_port *ocelot_port = ocelot->ports[port]; + struct hwtstamp_config cfg; + + if (copy_from_user(&cfg, ifr->ifr_data, sizeof(cfg))) + return -EFAULT; + + /* reserved for future extensions */ + if (cfg.flags) + return -EINVAL; + + /* Tx type sanity check */ + switch (cfg.tx_type) { + case HWTSTAMP_TX_ON: + ocelot_port->ptp_cmd = IFH_REW_OP_TWO_STEP_PTP; + break; + case HWTSTAMP_TX_ONESTEP_SYNC: + /* IFH_REW_OP_ONE_STEP_PTP updates the correctional field, we + * need to update the origin time. + */ + ocelot_port->ptp_cmd = IFH_REW_OP_ORIGIN_PTP; + break; + case HWTSTAMP_TX_OFF: + ocelot_port->ptp_cmd = 0; + break; + default: + return -ERANGE; + } + + mutex_lock(&ocelot->ptp_lock); + + switch (cfg.rx_filter) { + case HWTSTAMP_FILTER_NONE: + break; + case HWTSTAMP_FILTER_PTP_V2_L4_EVENT: + case HWTSTAMP_FILTER_PTP_V2_L4_SYNC: + case HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_L2_EVENT: + case HWTSTAMP_FILTER_PTP_V2_L2_SYNC: + case HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ: + case HWTSTAMP_FILTER_PTP_V2_EVENT: + case HWTSTAMP_FILTER_PTP_V2_SYNC: + case HWTSTAMP_FILTER_PTP_V2_DELAY_REQ: + cfg.rx_filter = HWTSTAMP_FILTER_PTP_V2_EVENT; + break; + default: + mutex_unlock(&ocelot->ptp_lock); + return -ERANGE; + } + + /* Commit back the result & save it */ + memcpy(&ocelot->hwtstamp_config, &cfg, sizeof(cfg)); + mutex_unlock(&ocelot->ptp_lock); + + return copy_to_user(ifr->ifr_data, &cfg, sizeof(cfg)) ? -EFAULT : 0; +} +EXPORT_SYMBOL(ocelot_hwstamp_set); + +void ocelot_get_strings(struct ocelot *ocelot, int port, u32 sset, u8 *data) +{ int i; if (sset != ETH_SS_STATS) @@ -943,14 +846,12 @@ memcpy(data + i * ETH_GSTRING_LEN, ocelot->stats_layout[i].name, ETH_GSTRING_LEN); } +EXPORT_SYMBOL(ocelot_get_strings); -static void ocelot_check_stats(struct work_struct *work) +/* Caller must hold &ocelot->stats_lock */ +static void ocelot_update_stats(struct ocelot *ocelot) { - struct delayed_work *del_work = to_delayed_work(work); - struct ocelot *ocelot = container_of(del_work, struct ocelot, stats_work); int i, j; - - mutex_lock(&ocelot->stats_lock); for (i = 0; i < ocelot->num_phys_ports; i++) { /* Configure the port to read the stats from */ @@ -970,106 +871,108 @@ ~(u64)U32_MAX) + val; } } - - cancel_delayed_work(&ocelot->stats_work); - queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work, - OCELOT_STATS_CHECK_DELAY); - - mutex_unlock(&ocelot->stats_lock); } -static void ocelot_get_ethtool_stats(struct net_device *dev, - struct ethtool_stats *stats, u64 *data) +static void ocelot_check_stats_work(struct work_struct *work) { - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; + struct delayed_work *del_work = to_delayed_work(work); + struct ocelot *ocelot = container_of(del_work, struct ocelot, + stats_work); + + mutex_lock(&ocelot->stats_lock); + ocelot_update_stats(ocelot); + mutex_unlock(&ocelot->stats_lock); + + queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work, + OCELOT_STATS_CHECK_DELAY); +} + +void ocelot_get_ethtool_stats(struct ocelot *ocelot, int port, u64 *data) +{ int i; + mutex_lock(&ocelot->stats_lock); + /* check and update now */ - ocelot_check_stats(&ocelot->stats_work.work); + ocelot_update_stats(ocelot); /* Copy all counters */ for (i = 0; i < ocelot->num_stats; i++) - *data++ = ocelot->stats[port->chip_port * ocelot->num_stats + i]; + *data++ = ocelot->stats[port * ocelot->num_stats + i]; + + mutex_unlock(&ocelot->stats_lock); } +EXPORT_SYMBOL(ocelot_get_ethtool_stats); -static int ocelot_get_sset_count(struct net_device *dev, int sset) +int ocelot_get_sset_count(struct ocelot *ocelot, int port, int sset) { - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; - if (sset != ETH_SS_STATS) return -EOPNOTSUPP; + return ocelot->num_stats; } +EXPORT_SYMBOL(ocelot_get_sset_count); -static const struct ethtool_ops ocelot_ethtool_ops = { - .get_strings = ocelot_get_strings, - .get_ethtool_stats = ocelot_get_ethtool_stats, - .get_sset_count = ocelot_get_sset_count, - .get_link_ksettings = phy_ethtool_get_link_ksettings, - .set_link_ksettings = phy_ethtool_set_link_ksettings, -}; - -static int ocelot_port_attr_get(struct net_device *dev, - struct switchdev_attr *attr) +int ocelot_get_ts_info(struct ocelot *ocelot, int port, + struct ethtool_ts_info *info) { - struct ocelot_port *ocelot_port = netdev_priv(dev); - struct ocelot *ocelot = ocelot_port->ocelot; - - switch (attr->id) { - case SWITCHDEV_ATTR_ID_PORT_PARENT_ID: - attr->u.ppid.id_len = sizeof(ocelot->base_mac); - memcpy(&attr->u.ppid.id, &ocelot->base_mac, - attr->u.ppid.id_len); - break; - default: - return -EOPNOTSUPP; + info->phc_index = ocelot->ptp_clock ? + ptp_clock_index(ocelot->ptp_clock) : -1; + if (info->phc_index == -1) { + info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE | + SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE; + return 0; } + info->so_timestamping |= SOF_TIMESTAMPING_TX_SOFTWARE | + SOF_TIMESTAMPING_RX_SOFTWARE | + SOF_TIMESTAMPING_SOFTWARE | + SOF_TIMESTAMPING_TX_HARDWARE | + SOF_TIMESTAMPING_RX_HARDWARE | + SOF_TIMESTAMPING_RAW_HARDWARE; + info->tx_types = BIT(HWTSTAMP_TX_OFF) | BIT(HWTSTAMP_TX_ON) | + BIT(HWTSTAMP_TX_ONESTEP_SYNC); + info->rx_filters = BIT(HWTSTAMP_FILTER_NONE) | + BIT(HWTSTAMP_FILTER_PTP_V2_EVENT) | + BIT(HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | + BIT(HWTSTAMP_FILTER_PTP_V2_L4_EVENT); return 0; } +EXPORT_SYMBOL(ocelot_get_ts_info); -static int ocelot_port_attr_stp_state_set(struct ocelot_port *ocelot_port, - struct switchdev_trans *trans, - u8 state) +void ocelot_bridge_stp_state_set(struct ocelot *ocelot, int port, u8 state) { - struct ocelot *ocelot = ocelot_port->ocelot; u32 port_cfg; - int port, i; + int p, i; - if (switchdev_trans_ph_prepare(trans)) - return 0; + if (!(BIT(port) & ocelot->bridge_mask)) + return; - if (!(BIT(ocelot_port->chip_port) & ocelot->bridge_mask)) - return 0; - - port_cfg = ocelot_read_gix(ocelot, ANA_PORT_PORT_CFG, - ocelot_port->chip_port); + port_cfg = ocelot_read_gix(ocelot, ANA_PORT_PORT_CFG, port); switch (state) { case BR_STATE_FORWARDING: - ocelot->bridge_fwd_mask |= BIT(ocelot_port->chip_port); - /* Fallthrough */ + ocelot->bridge_fwd_mask |= BIT(port); + fallthrough; case BR_STATE_LEARNING: port_cfg |= ANA_PORT_PORT_CFG_LEARN_ENA; break; default: port_cfg &= ~ANA_PORT_PORT_CFG_LEARN_ENA; - ocelot->bridge_fwd_mask &= ~BIT(ocelot_port->chip_port); + ocelot->bridge_fwd_mask &= ~BIT(port); break; } - ocelot_write_gix(ocelot, port_cfg, ANA_PORT_PORT_CFG, - ocelot_port->chip_port); + ocelot_write_gix(ocelot, port_cfg, ANA_PORT_PORT_CFG, port); /* Apply FWD mask. The loop is needed to add/remove the current port as * a source for the other ports. */ - for (port = 0; port < ocelot->num_phys_ports; port++) { - if (ocelot->bridge_fwd_mask & BIT(port)) { - unsigned long mask = ocelot->bridge_fwd_mask & ~BIT(port); + for (p = 0; p < ocelot->num_phys_ports; p++) { + if (ocelot->bridge_fwd_mask & BIT(p)) { + unsigned long mask = ocelot->bridge_fwd_mask & ~BIT(p); for (i = 0; i < ocelot->num_phys_ports; i++) { unsigned long bond_mask = ocelot->lags[i]; @@ -1077,120 +980,35 @@ if (!bond_mask) continue; - if (bond_mask & BIT(port)) { + if (bond_mask & BIT(p)) { mask &= ~bond_mask; break; } } - ocelot_write_rix(ocelot, - BIT(ocelot->num_phys_ports) | mask, - ANA_PGID_PGID, PGID_SRC + port); + ocelot_write_rix(ocelot, mask, + ANA_PGID_PGID, PGID_SRC + p); } else { - /* Only the CPU port, this is compatible with link - * aggregation. - */ - ocelot_write_rix(ocelot, - BIT(ocelot->num_phys_ports), - ANA_PGID_PGID, PGID_SRC + port); + ocelot_write_rix(ocelot, 0, + ANA_PGID_PGID, PGID_SRC + p); } } - - return 0; } +EXPORT_SYMBOL(ocelot_bridge_stp_state_set); -static void ocelot_port_attr_ageing_set(struct ocelot_port *ocelot_port, - unsigned long ageing_clock_t) +void ocelot_set_ageing_time(struct ocelot *ocelot, unsigned int msecs) { - struct ocelot *ocelot = ocelot_port->ocelot; - unsigned long ageing_jiffies = clock_t_to_jiffies(ageing_clock_t); - u32 ageing_time = jiffies_to_msecs(ageing_jiffies) / 1000; + unsigned int age_period = ANA_AUTOAGE_AGE_PERIOD(msecs / 2000); - ocelot_write(ocelot, ANA_AUTOAGE_AGE_PERIOD(ageing_time / 2), - ANA_AUTOAGE); + /* Setting AGE_PERIOD to zero effectively disables automatic aging, + * which is clearly not what our intention is. So avoid that. + */ + if (!age_period) + age_period = 1; + + ocelot_rmw(ocelot, age_period, ANA_AUTOAGE_AGE_PERIOD_M, ANA_AUTOAGE); } - -static void ocelot_port_attr_mc_set(struct ocelot_port *port, bool mc) -{ - struct ocelot *ocelot = port->ocelot; - u32 val = ocelot_read_gix(ocelot, ANA_PORT_CPU_FWD_CFG, - port->chip_port); - - if (mc) - val |= ANA_PORT_CPU_FWD_CFG_CPU_IGMP_REDIR_ENA | - ANA_PORT_CPU_FWD_CFG_CPU_MLD_REDIR_ENA | - ANA_PORT_CPU_FWD_CFG_CPU_IPMC_CTRL_COPY_ENA; - else - val &= ~(ANA_PORT_CPU_FWD_CFG_CPU_IGMP_REDIR_ENA | - ANA_PORT_CPU_FWD_CFG_CPU_MLD_REDIR_ENA | - ANA_PORT_CPU_FWD_CFG_CPU_IPMC_CTRL_COPY_ENA); - - ocelot_write_gix(ocelot, val, ANA_PORT_CPU_FWD_CFG, port->chip_port); -} - -static int ocelot_port_attr_set(struct net_device *dev, - const struct switchdev_attr *attr, - struct switchdev_trans *trans) -{ - struct ocelot_port *ocelot_port = netdev_priv(dev); - int err = 0; - - switch (attr->id) { - case SWITCHDEV_ATTR_ID_PORT_STP_STATE: - ocelot_port_attr_stp_state_set(ocelot_port, trans, - attr->u.stp_state); - break; - case SWITCHDEV_ATTR_ID_BRIDGE_AGEING_TIME: - ocelot_port_attr_ageing_set(ocelot_port, attr->u.ageing_time); - break; - case SWITCHDEV_ATTR_ID_BRIDGE_VLAN_FILTERING: - ocelot_port->vlan_aware = attr->u.vlan_filtering; - ocelot_vlan_port_apply(ocelot_port->ocelot, ocelot_port); - break; - case SWITCHDEV_ATTR_ID_BRIDGE_MC_DISABLED: - ocelot_port_attr_mc_set(ocelot_port, !attr->u.mc_disabled); - break; - default: - err = -EOPNOTSUPP; - break; - } - - return err; -} - -static int ocelot_port_obj_add_vlan(struct net_device *dev, - const struct switchdev_obj_port_vlan *vlan, - struct switchdev_trans *trans) -{ - int ret; - u16 vid; - - for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) { - ret = ocelot_vlan_vid_add(dev, vid, - vlan->flags & BRIDGE_VLAN_INFO_PVID, - vlan->flags & BRIDGE_VLAN_INFO_UNTAGGED); - if (ret) - return ret; - } - - return 0; -} - -static int ocelot_port_vlan_del_vlan(struct net_device *dev, - const struct switchdev_obj_port_vlan *vlan) -{ - int ret; - u16 vid; - - for (vid = vlan->vid_begin; vid <= vlan->vid_end; vid++) { - ret = ocelot_vlan_vid_del(dev, vid); - - if (ret) - return ret; - } - - return 0; -} +EXPORT_SYMBOL(ocelot_set_ageing_time); static struct ocelot_multicast *ocelot_multicast_get(struct ocelot *ocelot, const unsigned char *addr, @@ -1206,139 +1024,156 @@ return NULL; } -static int ocelot_port_obj_add_mdb(struct net_device *dev, - const struct switchdev_obj_port_mdb *mdb, - struct switchdev_trans *trans) +static enum macaccess_entry_type ocelot_classify_mdb(const unsigned char *addr) { - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; - struct ocelot_multicast *mc; + if (addr[0] == 0x01 && addr[1] == 0x00 && addr[2] == 0x5e) + return ENTRYTYPE_MACv4; + if (addr[0] == 0x33 && addr[1] == 0x33) + return ENTRYTYPE_MACv6; + return ENTRYTYPE_NORMAL; +} + +static int ocelot_mdb_get_pgid(struct ocelot *ocelot, + enum macaccess_entry_type entry_type) +{ + int pgid; + + /* According to VSC7514 datasheet 3.9.1.5 IPv4 Multicast Entries and + * 3.9.1.6 IPv6 Multicast Entries, "Instead of a lookup in the + * destination mask table (PGID), the destination set is programmed as + * part of the entry MAC address.", and the DEST_IDX is set to 0. + */ + if (entry_type == ENTRYTYPE_MACv4 || + entry_type == ENTRYTYPE_MACv6) + return 0; + + for_each_nonreserved_multicast_dest_pgid(ocelot, pgid) { + struct ocelot_multicast *mc; + bool used = false; + + list_for_each_entry(mc, &ocelot->multicast, list) { + if (mc->pgid == pgid) { + used = true; + break; + } + } + + if (!used) + return pgid; + } + + return -1; +} + +static void ocelot_encode_ports_to_mdb(unsigned char *addr, + struct ocelot_multicast *mc, + enum macaccess_entry_type entry_type) +{ + memcpy(addr, mc->addr, ETH_ALEN); + + if (entry_type == ENTRYTYPE_MACv4) { + addr[0] = 0; + addr[1] = mc->ports >> 8; + addr[2] = mc->ports & 0xff; + } else if (entry_type == ENTRYTYPE_MACv6) { + addr[0] = mc->ports >> 8; + addr[1] = mc->ports & 0xff; + } +} + +int ocelot_port_mdb_add(struct ocelot *ocelot, int port, + const struct switchdev_obj_port_mdb *mdb) +{ + struct ocelot_port *ocelot_port = ocelot->ports[port]; + enum macaccess_entry_type entry_type; unsigned char addr[ETH_ALEN]; + struct ocelot_multicast *mc; u16 vid = mdb->vid; bool new = false; + if (port == ocelot->npi) + port = ocelot->num_phys_ports; + if (!vid) - vid = port->pvid; + vid = ocelot_port->pvid; + + entry_type = ocelot_classify_mdb(mdb->addr); mc = ocelot_multicast_get(ocelot, mdb->addr, vid); if (!mc) { + int pgid = ocelot_mdb_get_pgid(ocelot, entry_type); + + if (pgid < 0) { + dev_err(ocelot->dev, + "No more PGIDs available for mdb %pM vid %d\n", + mdb->addr, vid); + return -ENOSPC; + } + mc = devm_kzalloc(ocelot->dev, sizeof(*mc), GFP_KERNEL); if (!mc) return -ENOMEM; memcpy(mc->addr, mdb->addr, ETH_ALEN); mc->vid = vid; + mc->pgid = pgid; list_add_tail(&mc->list, &ocelot->multicast); new = true; } - memcpy(addr, mc->addr, ETH_ALEN); - addr[0] = 0; - if (!new) { - addr[2] = mc->ports << 0; - addr[1] = mc->ports << 8; + ocelot_encode_ports_to_mdb(addr, mc, entry_type); ocelot_mact_forget(ocelot, addr, vid); } - mc->ports |= BIT(port->chip_port); - addr[2] = mc->ports << 0; - addr[1] = mc->ports << 8; + mc->ports |= BIT(port); + ocelot_encode_ports_to_mdb(addr, mc, entry_type); - return ocelot_mact_learn(ocelot, 0, addr, vid, ENTRYTYPE_MACv4); + return ocelot_mact_learn(ocelot, mc->pgid, addr, vid, entry_type); } +EXPORT_SYMBOL(ocelot_port_mdb_add); -static int ocelot_port_obj_del_mdb(struct net_device *dev, - const struct switchdev_obj_port_mdb *mdb) +int ocelot_port_mdb_del(struct ocelot *ocelot, int port, + const struct switchdev_obj_port_mdb *mdb) { - struct ocelot_port *port = netdev_priv(dev); - struct ocelot *ocelot = port->ocelot; - struct ocelot_multicast *mc; + struct ocelot_port *ocelot_port = ocelot->ports[port]; + enum macaccess_entry_type entry_type; unsigned char addr[ETH_ALEN]; + struct ocelot_multicast *mc; u16 vid = mdb->vid; + if (port == ocelot->npi) + port = ocelot->num_phys_ports; + if (!vid) - vid = port->pvid; + vid = ocelot_port->pvid; mc = ocelot_multicast_get(ocelot, mdb->addr, vid); if (!mc) return -ENOENT; - memcpy(addr, mc->addr, ETH_ALEN); - addr[2] = mc->ports << 0; - addr[1] = mc->ports << 8; - addr[0] = 0; + entry_type = ocelot_classify_mdb(mdb->addr); + + ocelot_encode_ports_to_mdb(addr, mc, entry_type); ocelot_mact_forget(ocelot, addr, vid); - mc->ports &= ~BIT(port->chip_port); + mc->ports &= ~BIT(port); if (!mc->ports) { list_del(&mc->list); devm_kfree(ocelot->dev, mc); return 0; } - addr[2] = mc->ports << 0; - addr[1] = mc->ports << 8; + ocelot_encode_ports_to_mdb(addr, mc, entry_type); - return ocelot_mact_learn(ocelot, 0, addr, vid, ENTRYTYPE_MACv4); + return ocelot_mact_learn(ocelot, mc->pgid, addr, vid, entry_type); } +EXPORT_SYMBOL(ocelot_port_mdb_del); -static int ocelot_port_obj_add(struct net_device *dev, - const struct switchdev_obj *obj, - struct switchdev_trans *trans) +int ocelot_port_bridge_join(struct ocelot *ocelot, int port, + struct net_device *bridge) { - int ret = 0; - - switch (obj->id) { - case SWITCHDEV_OBJ_ID_PORT_VLAN: - ret = ocelot_port_obj_add_vlan(dev, - SWITCHDEV_OBJ_PORT_VLAN(obj), - trans); - break; - case SWITCHDEV_OBJ_ID_PORT_MDB: - ret = ocelot_port_obj_add_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj), - trans); - break; - default: - return -EOPNOTSUPP; - } - - return ret; -} - -static int ocelot_port_obj_del(struct net_device *dev, - const struct switchdev_obj *obj) -{ - int ret = 0; - - switch (obj->id) { - case SWITCHDEV_OBJ_ID_PORT_VLAN: - ret = ocelot_port_vlan_del_vlan(dev, - SWITCHDEV_OBJ_PORT_VLAN(obj)); - break; - case SWITCHDEV_OBJ_ID_PORT_MDB: - ret = ocelot_port_obj_del_mdb(dev, SWITCHDEV_OBJ_PORT_MDB(obj)); - break; - default: - return -EOPNOTSUPP; - } - - return ret; -} - -static const struct switchdev_ops ocelot_port_switchdev_ops = { - .switchdev_port_attr_get = ocelot_port_attr_get, - .switchdev_port_attr_set = ocelot_port_attr_set, - .switchdev_port_obj_add = ocelot_port_obj_add, - .switchdev_port_obj_del = ocelot_port_obj_del, -}; - -static int ocelot_port_bridge_join(struct ocelot_port *ocelot_port, - struct net_device *bridge) -{ - struct ocelot *ocelot = ocelot_port->ocelot; - if (!ocelot->bridge_mask) { ocelot->hw_bridge_dev = bridge; } else { @@ -1348,36 +1183,47 @@ return -ENODEV; } - ocelot->bridge_mask |= BIT(ocelot_port->chip_port); + ocelot->bridge_mask |= BIT(port); return 0; } +EXPORT_SYMBOL(ocelot_port_bridge_join); -static void ocelot_port_bridge_leave(struct ocelot_port *ocelot_port, - struct net_device *bridge) +int ocelot_port_bridge_leave(struct ocelot *ocelot, int port, + struct net_device *bridge) { - struct ocelot *ocelot = ocelot_port->ocelot; + struct switchdev_trans trans; + int ret; - ocelot->bridge_mask &= ~BIT(ocelot_port->chip_port); + ocelot->bridge_mask &= ~BIT(port); if (!ocelot->bridge_mask) ocelot->hw_bridge_dev = NULL; - /* Clear bridge vlan settings before calling ocelot_vlan_port_apply */ - ocelot_port->vlan_aware = 0; - ocelot_port->pvid = 0; - ocelot_port->vid = 0; + trans.ph_prepare = true; + ret = ocelot_port_vlan_filtering(ocelot, port, false, &trans); + if (ret) + return ret; + + trans.ph_prepare = false; + ret = ocelot_port_vlan_filtering(ocelot, port, false, &trans); + if (ret) + return ret; + + ocelot_port_set_pvid(ocelot, port, 0); + return ocelot_port_set_native_vlan(ocelot, port, 0); } +EXPORT_SYMBOL(ocelot_port_bridge_leave); static void ocelot_set_aggr_pgids(struct ocelot *ocelot) { int i, port, lag; /* Reset destination and aggregation PGIDS */ - for (port = 0; port < ocelot->num_phys_ports; port++) + for_each_unicast_dest_pgid(ocelot, port) ocelot_write_rix(ocelot, BIT(port), ANA_PGID_PGID, port); - for (i = PGID_AGGR; i < PGID_SRC; i++) + for_each_aggr_pgid(ocelot, i) ocelot_write_rix(ocelot, GENMASK(ocelot->num_phys_ports - 1, 0), ANA_PGID_PGID, i); @@ -1399,7 +1245,7 @@ aggr_count++; } - for (i = PGID_AGGR; i < PGID_SRC; i++) { + for_each_aggr_pgid(ocelot, i) { u32 ac; ac = ocelot_read_rix(ocelot, ANA_PGID_PGID, i); @@ -1427,20 +1273,18 @@ } } -static int ocelot_port_lag_join(struct ocelot_port *ocelot_port, - struct net_device *bond) +int ocelot_port_lag_join(struct ocelot *ocelot, int port, + struct net_device *bond) { - struct ocelot *ocelot = ocelot_port->ocelot; - int p = ocelot_port->chip_port; - int lag, lp; struct net_device *ndev; u32 bond_mask = 0; + int lag, lp; rcu_read_lock(); for_each_netdev_in_bond_rcu(bond, ndev) { - struct ocelot_port *port = netdev_priv(ndev); + struct ocelot_port_private *priv = netdev_priv(ndev); - bond_mask |= BIT(port->chip_port); + bond_mask |= BIT(priv->chip_port); } rcu_read_unlock(); @@ -1449,17 +1293,17 @@ /* If the new port is the lowest one, use it as the logical port from * now on */ - if (p == lp) { - lag = p; - ocelot->lags[p] = bond_mask; - bond_mask &= ~BIT(p); + if (port == lp) { + lag = port; + ocelot->lags[port] = bond_mask; + bond_mask &= ~BIT(port); if (bond_mask) { lp = __ffs(bond_mask); ocelot->lags[lp] = 0; } } else { lag = lp; - ocelot->lags[lp] |= BIT(p); + ocelot->lags[lp] |= BIT(port); } ocelot_setup_lag(ocelot, lag); @@ -1467,181 +1311,198 @@ return 0; } +EXPORT_SYMBOL(ocelot_port_lag_join); -static void ocelot_port_lag_leave(struct ocelot_port *ocelot_port, - struct net_device *bond) +void ocelot_port_lag_leave(struct ocelot *ocelot, int port, + struct net_device *bond) { - struct ocelot *ocelot = ocelot_port->ocelot; - int p = ocelot_port->chip_port; u32 port_cfg; int i; /* Remove port from any lag */ for (i = 0; i < ocelot->num_phys_ports; i++) - ocelot->lags[i] &= ~BIT(ocelot_port->chip_port); + ocelot->lags[i] &= ~BIT(port); /* if it was the logical port of the lag, move the lag config to the * next port */ - if (ocelot->lags[p]) { - int n = __ffs(ocelot->lags[p]); + if (ocelot->lags[port]) { + int n = __ffs(ocelot->lags[port]); - ocelot->lags[n] = ocelot->lags[p]; - ocelot->lags[p] = 0; + ocelot->lags[n] = ocelot->lags[port]; + ocelot->lags[port] = 0; ocelot_setup_lag(ocelot, n); } - port_cfg = ocelot_read_gix(ocelot, ANA_PORT_PORT_CFG, p); + port_cfg = ocelot_read_gix(ocelot, ANA_PORT_PORT_CFG, port); port_cfg &= ~ANA_PORT_PORT_CFG_PORTID_VAL_M; - ocelot_write_gix(ocelot, port_cfg | ANA_PORT_PORT_CFG_PORTID_VAL(p), - ANA_PORT_PORT_CFG, p); + ocelot_write_gix(ocelot, port_cfg | ANA_PORT_PORT_CFG_PORTID_VAL(port), + ANA_PORT_PORT_CFG, port); ocelot_set_aggr_pgids(ocelot); } +EXPORT_SYMBOL(ocelot_port_lag_leave); -/* Checks if the net_device instance given to us originate from our driver. */ -static bool ocelot_netdevice_dev_check(const struct net_device *dev) +/* Configure the maximum SDU (L2 payload) on RX to the value specified in @sdu. + * The length of VLAN tags is accounted for automatically via DEV_MAC_TAGS_CFG. + * In the special case that it's the NPI port that we're configuring, the + * length of the tag and optional prefix needs to be accounted for privately, + * in order to be able to sustain communication at the requested @sdu. + */ +void ocelot_port_set_maxlen(struct ocelot *ocelot, int port, size_t sdu) { - return dev->netdev_ops == &ocelot_port_netdev_ops; + struct ocelot_port *ocelot_port = ocelot->ports[port]; + int maxlen = sdu + ETH_HLEN + ETH_FCS_LEN; + int pause_start, pause_stop; + int atop, atop_tot; + + if (port == ocelot->npi) { + maxlen += OCELOT_TAG_LEN; + + if (ocelot->inj_prefix == OCELOT_TAG_PREFIX_SHORT) + maxlen += OCELOT_SHORT_PREFIX_LEN; + else if (ocelot->inj_prefix == OCELOT_TAG_PREFIX_LONG) + maxlen += OCELOT_LONG_PREFIX_LEN; + } + + ocelot_port_writel(ocelot_port, maxlen, DEV_MAC_MAXLEN_CFG); + + /* Set Pause watermark hysteresis */ + pause_start = 6 * maxlen / OCELOT_BUFFER_CELL_SZ; + pause_stop = 4 * maxlen / OCELOT_BUFFER_CELL_SZ; + ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_START, + pause_start); + ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_STOP, + pause_stop); + + /* Tail dropping watermarks */ + atop_tot = (ocelot->shared_queue_sz - 9 * maxlen) / + OCELOT_BUFFER_CELL_SZ; + atop = (9 * maxlen) / OCELOT_BUFFER_CELL_SZ; + ocelot_write_rix(ocelot, ocelot->ops->wm_enc(atop), SYS_ATOP, port); + ocelot_write(ocelot, ocelot->ops->wm_enc(atop_tot), SYS_ATOP_TOT_CFG); } +EXPORT_SYMBOL(ocelot_port_set_maxlen); -static int ocelot_netdevice_port_event(struct net_device *dev, - unsigned long event, - struct netdev_notifier_changeupper_info *info) +int ocelot_get_max_mtu(struct ocelot *ocelot, int port) { - struct ocelot_port *ocelot_port = netdev_priv(dev); - int err = 0; + int max_mtu = 65535 - ETH_HLEN - ETH_FCS_LEN; - switch (event) { - case NETDEV_CHANGEUPPER: - if (netif_is_bridge_master(info->upper_dev)) { - if (info->linking) - err = ocelot_port_bridge_join(ocelot_port, - info->upper_dev); - else - ocelot_port_bridge_leave(ocelot_port, - info->upper_dev); + if (port == ocelot->npi) { + max_mtu -= OCELOT_TAG_LEN; - ocelot_vlan_port_apply(ocelot_port->ocelot, - ocelot_port); - } - if (netif_is_lag_master(info->upper_dev)) { - if (info->linking) - err = ocelot_port_lag_join(ocelot_port, - info->upper_dev); - else - ocelot_port_lag_leave(ocelot_port, - info->upper_dev); - } - break; - default: - break; + if (ocelot->inj_prefix == OCELOT_TAG_PREFIX_SHORT) + max_mtu -= OCELOT_SHORT_PREFIX_LEN; + else if (ocelot->inj_prefix == OCELOT_TAG_PREFIX_LONG) + max_mtu -= OCELOT_LONG_PREFIX_LEN; } - return err; + return max_mtu; } +EXPORT_SYMBOL(ocelot_get_max_mtu); -static int ocelot_netdevice_event(struct notifier_block *unused, - unsigned long event, void *ptr) +void ocelot_init_port(struct ocelot *ocelot, int port) { - struct netdev_notifier_changeupper_info *info = ptr; - struct net_device *dev = netdev_notifier_info_to_dev(ptr); - int ret = 0; + struct ocelot_port *ocelot_port = ocelot->ports[port]; - if (event == NETDEV_PRECHANGEUPPER && - ocelot_netdevice_dev_check(dev) && - netif_is_lag_master(info->upper_dev)) { - struct netdev_lag_upper_info *lag_upper_info = info->upper_info; - struct netlink_ext_ack *extack; - - if (lag_upper_info && - lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) { - extack = netdev_notifier_info_to_extack(&info->info); - NL_SET_ERR_MSG_MOD(extack, "LAG device using unsupported Tx type"); - - ret = -EINVAL; - goto notify; - } - } - - if (netif_is_lag_master(dev)) { - struct net_device *slave; - struct list_head *iter; - - netdev_for_each_lower_dev(dev, slave, iter) { - ret = ocelot_netdevice_port_event(slave, event, info); - if (ret) - goto notify; - } - } else { - ret = ocelot_netdevice_port_event(dev, event, info); - } - -notify: - return notifier_from_errno(ret); -} - -struct notifier_block ocelot_netdevice_nb __read_mostly = { - .notifier_call = ocelot_netdevice_event, -}; -EXPORT_SYMBOL(ocelot_netdevice_nb); - -int ocelot_probe_port(struct ocelot *ocelot, u8 port, - void __iomem *regs, - struct phy_device *phy) -{ - struct ocelot_port *ocelot_port; - struct net_device *dev; - int err; - - dev = alloc_etherdev(sizeof(struct ocelot_port)); - if (!dev) - return -ENOMEM; - SET_NETDEV_DEV(dev, ocelot->dev); - ocelot_port = netdev_priv(dev); - ocelot_port->dev = dev; - ocelot_port->ocelot = ocelot; - ocelot_port->regs = regs; - ocelot_port->chip_port = port; - ocelot_port->phy = phy; - INIT_LIST_HEAD(&ocelot_port->mc); - ocelot->ports[port] = ocelot_port; - - dev->netdev_ops = &ocelot_port_netdev_ops; - dev->ethtool_ops = &ocelot_ethtool_ops; - dev->switchdev_ops = &ocelot_port_switchdev_ops; - - dev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; - dev->features |= NETIF_F_HW_VLAN_CTAG_FILTER; - - memcpy(dev->dev_addr, ocelot->base_mac, ETH_ALEN); - dev->dev_addr[ETH_ALEN - 1] += port; - ocelot_mact_learn(ocelot, PGID_CPU, dev->dev_addr, ocelot_port->pvid, - ENTRYTYPE_LOCKED); - - err = register_netdev(dev); - if (err) { - dev_err(ocelot->dev, "register_netdev failed\n"); - goto err_register_netdev; - } + skb_queue_head_init(&ocelot_port->tx_skbs); + spin_lock_init(&ocelot_port->ts_id_lock); /* Basic L2 initialization */ - ocelot_vlan_port_apply(ocelot, ocelot_port); - return 0; + /* Set MAC IFG Gaps + * FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 0 + * !FDX: TX_IFG = 5, RX_IFG1 = RX_IFG2 = 5 + */ + ocelot_port_writel(ocelot_port, DEV_MAC_IFG_CFG_TX_IFG(5), + DEV_MAC_IFG_CFG); -err_register_netdev: - free_netdev(dev); - return err; + /* Load seed (0) and set MAC HDX late collision */ + ocelot_port_writel(ocelot_port, DEV_MAC_HDX_CFG_LATE_COL_POS(67) | + DEV_MAC_HDX_CFG_SEED_LOAD, + DEV_MAC_HDX_CFG); + mdelay(1); + ocelot_port_writel(ocelot_port, DEV_MAC_HDX_CFG_LATE_COL_POS(67), + DEV_MAC_HDX_CFG); + + /* Set Max Length and maximum tags allowed */ + ocelot_port_set_maxlen(ocelot, port, ETH_DATA_LEN); + ocelot_port_writel(ocelot_port, DEV_MAC_TAGS_CFG_TAG_ID(ETH_P_8021AD) | + DEV_MAC_TAGS_CFG_VLAN_AWR_ENA | + DEV_MAC_TAGS_CFG_VLAN_DBL_AWR_ENA | + DEV_MAC_TAGS_CFG_VLAN_LEN_AWR_ENA, + DEV_MAC_TAGS_CFG); + + /* Set SMAC of Pause frame (00:00:00:00:00:00) */ + ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_HIGH_CFG); + ocelot_port_writel(ocelot_port, 0, DEV_MAC_FC_MAC_LOW_CFG); + + /* Enable transmission of pause frames */ + ocelot_fields_write(ocelot, port, SYS_PAUSE_CFG_PAUSE_ENA, 1); + + /* Drop frames with multicast source address */ + ocelot_rmw_gix(ocelot, ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA, + ANA_PORT_DROP_CFG_DROP_MC_SMAC_ENA, + ANA_PORT_DROP_CFG, port); + + /* Set default VLAN and tag type to 8021Q. */ + ocelot_rmw_gix(ocelot, REW_PORT_VLAN_CFG_PORT_TPID(ETH_P_8021Q), + REW_PORT_VLAN_CFG_PORT_TPID_M, + REW_PORT_VLAN_CFG, port); + + /* Enable vcap lookups */ + ocelot_vcap_enable(ocelot, port); } -EXPORT_SYMBOL(ocelot_probe_port); +EXPORT_SYMBOL(ocelot_init_port); + +/* Configure and enable the CPU port module, which is a set of queues + * accessible through register MMIO, frame DMA or Ethernet (in case + * NPI mode is used). + */ +static void ocelot_cpu_port_init(struct ocelot *ocelot) +{ + int cpu = ocelot->num_phys_ports; + + /* The unicast destination PGID for the CPU port module is unused */ + ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, cpu); + /* Instead set up a multicast destination PGID for traffic copied to + * the CPU. Whitelisted MAC addresses like the port netdevice MAC + * addresses will be copied to the CPU via this PGID. + */ + ocelot_write_rix(ocelot, BIT(cpu), ANA_PGID_PGID, PGID_CPU); + ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_RECV_ENA | + ANA_PORT_PORT_CFG_PORTID_VAL(cpu), + ANA_PORT_PORT_CFG, cpu); + + /* Enable CPU port module */ + ocelot_fields_write(ocelot, cpu, QSYS_SWITCH_PORT_MODE_PORT_ENA, 1); + /* CPU port Injection/Extraction configuration */ + ocelot_fields_write(ocelot, cpu, SYS_PORT_MODE_INCL_XTR_HDR, + ocelot->xtr_prefix); + ocelot_fields_write(ocelot, cpu, SYS_PORT_MODE_INCL_INJ_HDR, + ocelot->inj_prefix); + + /* Configure the CPU port to be VLAN aware */ + ocelot_write_gix(ocelot, ANA_PORT_VLAN_CFG_VLAN_VID(0) | + ANA_PORT_VLAN_CFG_VLAN_AWARE_ENA | + ANA_PORT_VLAN_CFG_VLAN_POP_CNT(1), + ANA_PORT_VLAN_CFG, cpu); +} int ocelot_init(struct ocelot *ocelot) { - u32 port; - int i, cpu = ocelot->num_phys_ports; char queue_name[32]; + int i, ret; + u32 port; + + if (ocelot->ops->reset) { + ret = ocelot->ops->reset(ocelot); + if (ret) { + dev_err(ocelot->dev, "Switch reset failed\n"); + return ret; + } + } ocelot->lags = devm_kcalloc(ocelot->dev, ocelot->num_phys_ports, sizeof(u32), GFP_KERNEL); @@ -1655,14 +1516,19 @@ return -ENOMEM; mutex_init(&ocelot->stats_lock); + mutex_init(&ocelot->ptp_lock); + spin_lock_init(&ocelot->ptp_clock_lock); snprintf(queue_name, sizeof(queue_name), "%s-stats", dev_name(ocelot->dev)); ocelot->stats_queue = create_singlethread_workqueue(queue_name); if (!ocelot->stats_queue) return -ENOMEM; + INIT_LIST_HEAD(&ocelot->multicast); ocelot_mact_init(ocelot); ocelot_vlan_init(ocelot); + ocelot_vcap_init(ocelot); + ocelot_cpu_port_init(ocelot); for (port = 0; port < ocelot->num_phys_ports; port++) { /* Clear all counters (5 groups) */ @@ -1695,10 +1561,11 @@ SYS_FRM_AGING_MAX_AGE(307692), SYS_FRM_AGING); /* Setup flooding PGIDs */ - ocelot_write_rix(ocelot, ANA_FLOODING_FLD_MULTICAST(PGID_MC) | - ANA_FLOODING_FLD_BROADCAST(PGID_MC) | - ANA_FLOODING_FLD_UNICAST(PGID_UC), - ANA_FLOODING, 0); + for (i = 0; i < ocelot->num_flooding_pgids; i++) + ocelot_write_rix(ocelot, ANA_FLOODING_FLD_MULTICAST(PGID_MC) | + ANA_FLOODING_FLD_BROADCAST(PGID_MC) | + ANA_FLOODING_FLD_UNICAST(PGID_UC), + ANA_FLOODING, i); ocelot_write(ocelot, ANA_FLOODING_IPMC_FLD_MC6_DATA(PGID_MCIPV6) | ANA_FLOODING_IPMC_FLD_MC6_CTRL(PGID_MC) | ANA_FLOODING_IPMC_FLD_MC4_DATA(PGID_MCIPV4) | @@ -1717,15 +1584,8 @@ ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_SRC + port); } - /* Configure and enable the CPU port. */ - ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, cpu); - ocelot_write_rix(ocelot, BIT(cpu), ANA_PGID_PGID, PGID_CPU); - ocelot_write_gix(ocelot, ANA_PORT_PORT_CFG_RECV_ENA | - ANA_PORT_PORT_CFG_PORTID_VAL(cpu), - ANA_PORT_PORT_CFG, cpu); - /* Allow broadcast MAC frames. */ - for (i = ocelot->num_phys_ports + 1; i < PGID_CPU; i++) { + for_each_nonreserved_multicast_dest_pgid(ocelot, i) { u32 val = ANA_PGID_PGID_PGID(GENMASK(ocelot->num_phys_ports - 1, 0)); ocelot_write_rix(ocelot, val, ANA_PGID_PGID, i); @@ -1733,16 +1593,13 @@ ocelot_write_rix(ocelot, ANA_PGID_PGID_PGID(GENMASK(ocelot->num_phys_ports, 0)), ANA_PGID_PGID, PGID_MC); - ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV4); - ocelot_write_rix(ocelot, 0, ANA_PGID_PGID, PGID_MCIPV6); + ocelot_write_rix(ocelot, + ANA_PGID_PGID_PGID(GENMASK(ocelot->num_phys_ports, 0)), + ANA_PGID_PGID, PGID_MCIPV4); + ocelot_write_rix(ocelot, + ANA_PGID_PGID_PGID(GENMASK(ocelot->num_phys_ports, 0)), + ANA_PGID_PGID, PGID_MCIPV6); - /* CPU port Injection/Extraction configuration */ - ocelot_write_rix(ocelot, QSYS_SWITCH_PORT_MODE_INGRESS_DROP_MODE | - QSYS_SWITCH_PORT_MODE_SCH_NEXT_CFG(1) | - QSYS_SWITCH_PORT_MODE_PORT_ENA, - QSYS_SWITCH_PORT_MODE, cpu); - ocelot_write_rix(ocelot, SYS_PORT_MODE_INCL_XTR_HDR(1) | - SYS_PORT_MODE_INCL_INJ_HDR(1), SYS_PORT_MODE, cpu); /* Allow manual injection via DEVCPU_QS registers, and byte swap these * registers endianness. */ @@ -1764,9 +1621,10 @@ ANA_CPUQ_8021_CFG_CPUQ_BPDU_VAL(6), ANA_CPUQ_8021_CFG, i); - INIT_DELAYED_WORK(&ocelot->stats_work, ocelot_check_stats); + INIT_DELAYED_WORK(&ocelot->stats_work, ocelot_check_stats_work); queue_delayed_work(ocelot->stats_queue, &ocelot->stats_work, OCELOT_STATS_CHECK_DELAY); + return 0; } EXPORT_SYMBOL(ocelot_init); @@ -1779,4 +1637,12 @@ } EXPORT_SYMBOL(ocelot_deinit); +void ocelot_deinit_port(struct ocelot *ocelot, int port) +{ + struct ocelot_port *ocelot_port = ocelot->ports[port]; + + skb_queue_purge(&ocelot_port->tx_skbs); +} +EXPORT_SYMBOL(ocelot_deinit_port); + MODULE_LICENSE("Dual MIT/GPL"); -- Gitblit v1.6.2