diff options
Diffstat (limited to 'drivers/net/ethernet/freescale/enetc/enetc_pf.c')
| -rw-r--r-- | drivers/net/ethernet/freescale/enetc/enetc_pf.c | 815 |
1 files changed, 498 insertions, 317 deletions
diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.c b/drivers/net/ethernet/freescale/enetc/enetc_pf.c index 7d28f5e9b46b..de0fb272c847 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_pf.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.c @@ -1,51 +1,45 @@ // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) /* Copyright 2017-2019 NXP */ +#include <linux/unaligned.h> #include <linux/module.h> -#include <linux/of_mdio.h> +#include <linux/of.h> +#include <linux/of_platform.h> #include <linux/of_net.h> -#include "enetc_pf.h" +#include <linux/pcs-lynx.h> +#include "enetc_ierb.h" +#include "enetc_pf_common.h" -#define ENETC_DRV_VER_MAJ 1 -#define ENETC_DRV_VER_MIN 0 - -#define ENETC_DRV_VER_STR __stringify(ENETC_DRV_VER_MAJ) "." \ - __stringify(ENETC_DRV_VER_MIN) -static const char enetc_drv_ver[] = ENETC_DRV_VER_STR; #define ENETC_DRV_NAME_STR "ENETC PF driver" -static const char enetc_drv_name[] = ENETC_DRV_NAME_STR; static void enetc_pf_get_primary_mac_addr(struct enetc_hw *hw, int si, u8 *addr) { u32 upper = __raw_readl(hw->port + ENETC_PSIPMAR0(si)); u16 lower = __raw_readw(hw->port + ENETC_PSIPMAR1(si)); - *(u32 *)addr = upper; - *(u16 *)(addr + 4) = lower; + put_unaligned_le32(upper, addr); + put_unaligned_le16(lower, addr + 4); } static void enetc_pf_set_primary_mac_addr(struct enetc_hw *hw, int si, const u8 *addr) { - u32 upper = *(const u32 *)addr; - u16 lower = *(const u16 *)(addr + 4); + u32 upper = get_unaligned_le32(addr); + u16 lower = get_unaligned_le16(addr + 4); __raw_writel(upper, hw->port + ENETC_PSIPMAR0(si)); __raw_writew(lower, hw->port + ENETC_PSIPMAR1(si)); } -static int enetc_pf_set_mac_addr(struct net_device *ndev, void *addr) +static struct phylink_pcs *enetc_pf_create_pcs(struct enetc_pf *pf, + struct mii_bus *bus) { - struct enetc_ndev_priv *priv = netdev_priv(ndev); - struct sockaddr *saddr = addr; - - if (!is_valid_ether_addr(saddr->sa_data)) - return -EADDRNOTAVAIL; - - memcpy(ndev->dev_addr, saddr->sa_data, ndev->addr_len); - enetc_pf_set_primary_mac_addr(&priv->si->hw, 0, saddr->sa_data); + return lynx_pcs_create_mdiodev(bus, 0); +} - return 0; +static void enetc_pf_destroy_pcs(struct phylink_pcs *pcs) +{ + lynx_pcs_destroy(pcs); } static void enetc_set_vlan_promisc(struct enetc_hw *hw, char si_map) @@ -56,21 +50,6 @@ static void enetc_set_vlan_promisc(struct enetc_hw *hw, char si_map) enetc_port_wr(hw, ENETC_PSIPVMR, ENETC_PSIPVMR_SET_VP(si_map) | val); } -static bool enetc_si_vlan_promisc_is_on(struct enetc_pf *pf, int si_idx) -{ - return pf->vlan_promisc_simap & BIT(si_idx); -} - -static bool enetc_vlan_filter_is_on(struct enetc_pf *pf) -{ - int i; - - for_each_set_bit(i, pf->active_vlans, VLAN_N_VID) - return true; - - return false; -} - static void enetc_enable_si_vlan_promisc(struct enetc_pf *pf, int si_idx) { pf->vlan_promisc_simap |= BIT(si_idx); @@ -93,30 +72,6 @@ static void enetc_set_isol_vlan(struct enetc_hw *hw, int si, u16 vlan, u8 qos) enetc_port_wr(hw, ENETC_PSIVLANR(si), val); } -static int enetc_mac_addr_hash_idx(const u8 *addr) -{ - u64 fold = __swab64(ether_addr_to_u64(addr)) >> 16; - u64 mask = 0; - int res = 0; - int i; - - for (i = 0; i < 8; i++) - mask |= BIT_ULL(i * 6); - - for (i = 0; i < 6; i++) - res |= (hweight64(fold & (mask << i)) & 0x1) << i; - - return res; -} - -static void enetc_reset_mac_addr_filter(struct enetc_mac_filter *filter) -{ - filter->mac_addr_cnt = 0; - - bitmap_zero(filter->mac_hash_table, - ENETC_MADDR_HASH_TBL_SZ); -} - static void enetc_add_mac_addr_em_filter(struct enetc_mac_filter *filter, const unsigned char *addr) { @@ -125,16 +80,6 @@ static void enetc_add_mac_addr_em_filter(struct enetc_mac_filter *filter, filter->mac_addr_cnt++; } -static void enetc_add_mac_addr_ht_filter(struct enetc_mac_filter *filter, - const unsigned char *addr) -{ - int idx = enetc_mac_addr_hash_idx(addr); - - /* add hash table entry */ - __set_bit(idx, filter->mac_hash_table); - filter->mac_addr_cnt++; -} - static void enetc_clear_mac_ht_flt(struct enetc_si *si, int si_idx, int type) { bool err = si->errata & ENETC_ERR_UCMCSWP; @@ -149,16 +94,20 @@ static void enetc_clear_mac_ht_flt(struct enetc_si *si, int si_idx, int type) } static void enetc_set_mac_ht_flt(struct enetc_si *si, int si_idx, int type, - u32 *hash) + unsigned long hash) { bool err = si->errata & ENETC_ERR_UCMCSWP; if (type == UC) { - enetc_port_wr(&si->hw, ENETC_PSIUMHFR0(si_idx, err), *hash); - enetc_port_wr(&si->hw, ENETC_PSIUMHFR1(si_idx), *(hash + 1)); + enetc_port_wr(&si->hw, ENETC_PSIUMHFR0(si_idx, err), + lower_32_bits(hash)); + enetc_port_wr(&si->hw, ENETC_PSIUMHFR1(si_idx), + upper_32_bits(hash)); } else { /* MC */ - enetc_port_wr(&si->hw, ENETC_PSIMMHFR0(si_idx, err), *hash); - enetc_port_wr(&si->hw, ENETC_PSIMMHFR1(si_idx), *(hash + 1)); + enetc_port_wr(&si->hw, ENETC_PSIMMHFR0(si_idx, err), + lower_32_bits(hash)); + enetc_port_wr(&si->hw, ENETC_PSIMMHFR1(si_idx), + upper_32_bits(hash)); } } @@ -202,7 +151,7 @@ static void enetc_sync_mac_filters(struct enetc_pf *pf) if (i == UC) enetc_clear_mac_flt_entry(si, pos); - enetc_set_mac_ht_flt(si, 0, i, (u32 *)f->mac_hash_table); + enetc_set_mac_ht_flt(si, 0, i, *f->mac_hash_table); } } @@ -222,10 +171,6 @@ static void enetc_pf_set_rx_mode(struct net_device *ndev) psipmr = ENETC_PSIPMR_SET_UP(0) | ENETC_PSIPMR_SET_MP(0); uprom = true; mprom = true; - /* enable VLAN promisc mode for SI0 */ - if (!enetc_si_vlan_promisc_is_on(pf, 0)) - enetc_enable_si_vlan_promisc(pf, 0); - } else if (ndev->flags & IFF_ALLMULTI) { /* enable multi cast promisc mode for SI0 (PF) */ psipmr = ENETC_PSIPMR_SET_MP(0); @@ -271,94 +216,26 @@ static void enetc_pf_set_rx_mode(struct net_device *ndev) enetc_port_wr(hw, ENETC_PSIPMR, psipmr); } -static void enetc_set_vlan_ht_filter(struct enetc_hw *hw, int si_idx, - u32 *hash) -{ - enetc_port_wr(hw, ENETC_PSIVHFR0(si_idx), *hash); - enetc_port_wr(hw, ENETC_PSIVHFR1(si_idx), *(hash + 1)); -} - -static int enetc_vid_hash_idx(unsigned int vid) -{ - int res = 0; - int i; - - for (i = 0; i < 6; i++) - res |= (hweight8(vid & (BIT(i) | BIT(i + 6))) & 0x1) << i; - - return res; -} - -static void enetc_sync_vlan_ht_filter(struct enetc_pf *pf, bool rehash) -{ - int i; - - if (rehash) { - bitmap_zero(pf->vlan_ht_filter, ENETC_VLAN_HT_SIZE); - - for_each_set_bit(i, pf->active_vlans, VLAN_N_VID) { - int hidx = enetc_vid_hash_idx(i); - - __set_bit(hidx, pf->vlan_ht_filter); - } - } - - enetc_set_vlan_ht_filter(&pf->si->hw, 0, (u32 *)pf->vlan_ht_filter); -} - -static int enetc_vlan_rx_add_vid(struct net_device *ndev, __be16 prot, u16 vid) -{ - struct enetc_ndev_priv *priv = netdev_priv(ndev); - struct enetc_pf *pf = enetc_si_priv(priv->si); - int idx; - - if (enetc_si_vlan_promisc_is_on(pf, 0)) - enetc_disable_si_vlan_promisc(pf, 0); - - __set_bit(vid, pf->active_vlans); - - idx = enetc_vid_hash_idx(vid); - if (!__test_and_set_bit(idx, pf->vlan_ht_filter)) - enetc_sync_vlan_ht_filter(pf, false); - - return 0; -} - -static int enetc_vlan_rx_del_vid(struct net_device *ndev, __be16 prot, u16 vid) -{ - struct enetc_ndev_priv *priv = netdev_priv(ndev); - struct enetc_pf *pf = enetc_si_priv(priv->si); - - __clear_bit(vid, pf->active_vlans); - enetc_sync_vlan_ht_filter(pf, true); - - if (!enetc_vlan_filter_is_on(pf)) - enetc_enable_si_vlan_promisc(pf, 0); - - return 0; -} - static void enetc_set_loopback(struct net_device *ndev, bool en) { struct enetc_ndev_priv *priv = netdev_priv(ndev); - struct enetc_hw *hw = &priv->si->hw; + struct enetc_si *si = priv->si; u32 reg; - reg = enetc_port_rd(hw, ENETC_PM0_IF_MODE); - if (reg & ENETC_PMO_IFM_RG) { + reg = enetc_port_mac_rd(si, ENETC_PM0_IF_MODE); + if (reg & ENETC_PM0_IFM_RG) { /* RGMII mode */ reg = (reg & ~ENETC_PM0_IFM_RLP) | (en ? ENETC_PM0_IFM_RLP : 0); - enetc_port_wr(hw, ENETC_PM0_IF_MODE, reg); + enetc_port_mac_wr(si, ENETC_PM0_IF_MODE, reg); } else { /* assume SGMII mode */ - reg = enetc_port_rd(hw, ENETC_PM0_CMD_CFG); + reg = enetc_port_mac_rd(si, ENETC_PM0_CMD_CFG); reg = (reg & ~ENETC_PM0_CMD_XGLP) | (en ? ENETC_PM0_CMD_XGLP : 0); reg = (reg & ~ENETC_PM0_CMD_PHY_TX_EN) | (en ? ENETC_PM0_CMD_PHY_TX_EN : 0); - enetc_port_wr(hw, ENETC_PM0_CMD_CFG, reg); - enetc_port_wr(hw, ENETC_PM1_CMD_CFG, reg); + enetc_port_mac_wr(si, ENETC_PM0_CMD_CFG, reg); } } @@ -416,25 +293,6 @@ static int enetc_pf_set_vf_spoofchk(struct net_device *ndev, int vf, bool en) return 0; } -static void enetc_port_setup_primary_mac_address(struct enetc_si *si) -{ - unsigned char mac_addr[MAX_ADDR_LEN]; - struct enetc_pf *pf = enetc_si_priv(si); - struct enetc_hw *hw = &si->hw; - int i; - - /* check MAC addresses for PF and all VFs, if any is 0 set it ro rand */ - for (i = 0; i < pf->total_vfs + 1; i++) { - enetc_pf_get_primary_mac_addr(hw, i, mac_addr); - if (!is_zero_ether_addr(mac_addr)) - continue; - eth_random_addr(mac_addr); - dev_info(&si->pdev->dev, "no MAC address specified for SI%d, using %pM\n", - i, mac_addr); - enetc_pf_set_primary_mac_addr(hw, i, mac_addr); - } -} - static void enetc_port_assign_rfs_entries(struct enetc_si *si) { struct enetc_pf *pf = enetc_si_priv(si); @@ -456,6 +314,23 @@ static void enetc_port_assign_rfs_entries(struct enetc_si *si) enetc_port_wr(hw, ENETC_PRFSMR, ENETC_PRFSMR_RFSE); } +static void enetc_port_get_caps(struct enetc_si *si) +{ + struct enetc_hw *hw = &si->hw; + u32 val; + + val = enetc_port_rd(hw, ENETC_PCAPR0); + + if (val & ENETC_PCAPR0_QBV) + si->hw_features |= ENETC_SI_F_QBV; + + if (val & ENETC_PCAPR0_QBU) + si->hw_features |= ENETC_SI_F_QBU; + + if (val & ENETC_PCAPR0_PSFP) + si->hw_features |= ENETC_SI_F_PSFP; +} + static void enetc_port_si_configure(struct enetc_si *si) { struct enetc_pf *pf = enetc_si_priv(si); @@ -463,6 +338,8 @@ static void enetc_port_si_configure(struct enetc_si *si) int num_rings, i; u32 val; + enetc_port_get_caps(si); + val = enetc_port_rd(hw, ENETC_PCAPR0); num_rings = min(ENETC_PCAPR0_RXBDR(val), ENETC_PCAPR0_TXBDR(val)); @@ -507,62 +384,88 @@ static void enetc_port_si_configure(struct enetc_si *si) enetc_port_wr(hw, ENETC_PSIVLANFMR, ENETC_PSIVLANFMR_VS); } -static void enetc_configure_port_mac(struct enetc_hw *hw) +void enetc_set_ptcmsdur(struct enetc_hw *hw, u32 *max_sdu) { - enetc_port_wr(hw, ENETC_PM0_MAXFRM, - ENETC_SET_MAXFRM(ENETC_RX_MAXFRM_SIZE)); + int tc; - enetc_port_wr(hw, ENETC_PTCMSDUR(0), ENETC_MAC_MAXFRM_SIZE); - enetc_port_wr(hw, ENETC_PTXMBAR, 2 * ENETC_MAC_MAXFRM_SIZE); + for (tc = 0; tc < 8; tc++) { + u32 val = ENETC_MAC_MAXFRM_SIZE; - enetc_port_wr(hw, ENETC_PM0_CMD_CFG, ENETC_PM0_CMD_PHY_TX_EN | - ENETC_PM0_CMD_TXP | ENETC_PM0_PROMISC | - ENETC_PM0_TX_EN | ENETC_PM0_RX_EN); + if (max_sdu[tc]) + val = max_sdu[tc] + VLAN_ETH_HLEN; - enetc_port_wr(hw, ENETC_PM1_CMD_CFG, ENETC_PM0_CMD_PHY_TX_EN | - ENETC_PM0_CMD_TXP | ENETC_PM0_PROMISC | - ENETC_PM0_TX_EN | ENETC_PM0_RX_EN); - /* set auto-speed for RGMII */ - if (enetc_port_rd(hw, ENETC_PM0_IF_MODE) & ENETC_PMO_IFM_RG) - enetc_port_wr(hw, ENETC_PM0_IF_MODE, ENETC_PM0_IFM_RGAUTO); - if (enetc_global_rd(hw, ENETC_G_EPFBLPR(1)) == ENETC_G_EPFBLPR1_XGMII) - enetc_port_wr(hw, ENETC_PM0_IF_MODE, ENETC_PM0_IFM_XGMII); + enetc_port_wr(hw, ENETC_PTCMSDUR(tc), val); + } } -static void enetc_configure_port_pmac(struct enetc_hw *hw) +void enetc_reset_ptcmsdur(struct enetc_hw *hw) { - u32 temp; + int tc; - /* Set pMAC step lock */ - temp = enetc_port_rd(hw, ENETC_PFPMR); - enetc_port_wr(hw, ENETC_PFPMR, - temp | ENETC_PFPMR_PMACE | ENETC_PFPMR_MWLM); + for (tc = 0; tc < 8; tc++) + enetc_port_wr(hw, ENETC_PTCMSDUR(tc), ENETC_MAC_MAXFRM_SIZE); +} + +static void enetc_configure_port_mac(struct enetc_si *si) +{ + struct enetc_hw *hw = &si->hw; - temp = enetc_port_rd(hw, ENETC_MMCSR); - enetc_port_wr(hw, ENETC_MMCSR, temp | ENETC_MMCSR_ME); + enetc_port_mac_wr(si, ENETC_PM0_MAXFRM, + ENETC_SET_MAXFRM(ENETC_RX_MAXFRM_SIZE)); + + enetc_reset_ptcmsdur(hw); + + enetc_port_mac_wr(si, ENETC_PM0_CMD_CFG, ENETC_PM0_CMD_PHY_TX_EN | + ENETC_PM0_CMD_TXP | ENETC_PM0_PROMISC); + + /* On LS1028A, the MAC RX FIFO defaults to 2, which is too high + * and may lead to RX lock-up under traffic. Set it to 1 instead, + * as recommended by the hardware team. + */ + enetc_port_mac_wr(si, ENETC_PM0_RX_FIFO, ENETC_PM0_RX_FIFO_VAL); +} + +static void enetc_mac_config(struct enetc_si *si, phy_interface_t phy_mode) +{ + u32 val; + + if (phy_interface_mode_is_rgmii(phy_mode)) { + val = enetc_port_mac_rd(si, ENETC_PM0_IF_MODE); + val &= ~(ENETC_PM0_IFM_EN_AUTO | ENETC_PM0_IFM_IFMODE_MASK); + val |= ENETC_PM0_IFM_IFMODE_GMII | ENETC_PM0_IFM_RG; + enetc_port_mac_wr(si, ENETC_PM0_IF_MODE, val); + } + + if (phy_mode == PHY_INTERFACE_MODE_USXGMII) { + val = ENETC_PM0_IFM_FULL_DPX | ENETC_PM0_IFM_IFMODE_XGMII; + enetc_port_mac_wr(si, ENETC_PM0_IF_MODE, val); + } +} + +static void enetc_mac_enable(struct enetc_si *si, bool en) +{ + u32 val = enetc_port_mac_rd(si, ENETC_PM0_CMD_CFG); + + val &= ~(ENETC_PM0_TX_EN | ENETC_PM0_RX_EN); + val |= en ? (ENETC_PM0_TX_EN | ENETC_PM0_RX_EN) : 0; + + enetc_port_mac_wr(si, ENETC_PM0_CMD_CFG, val); } static void enetc_configure_port(struct enetc_pf *pf) { - u8 hash_key[ENETC_RSSHASH_KEY_SIZE]; struct enetc_hw *hw = &pf->si->hw; - enetc_configure_port_pmac(hw); - - enetc_configure_port_mac(hw); + enetc_configure_port_mac(pf->si); enetc_port_si_configure(pf->si); /* set up hash key */ - get_random_bytes(hash_key, ENETC_RSSHASH_KEY_SIZE); - enetc_set_rss_key(hw, hash_key); + enetc_set_default_rss_key(pf); /* split up RFS entries */ enetc_port_assign_rfs_entries(pf->si); - /* fix-up primary MAC addresses, if not set already */ - enetc_port_setup_primary_mac_address(pf->si); - /* enforce VLAN promisc mode for all SIs */ pf->vlan_promisc_simap = ENETC_VLAN_PROMISC_MAP_ALL; enetc_set_vlan_promisc(hw, pf->vlan_promisc_simap); @@ -629,19 +532,11 @@ static int enetc_sriov_configure(struct pci_dev *pdev, int num_vfs) if (!num_vfs) { enetc_msg_psi_free(pf); - kfree(pf->vf_state); pf->num_vfs = 0; pci_disable_sriov(pdev); } else { pf->num_vfs = num_vfs; - pf->vf_state = kcalloc(num_vfs, sizeof(struct enetc_vf_state), - GFP_KERNEL); - if (!pf->vf_state) { - pf->num_vfs = 0; - return -ENOMEM; - } - err = enetc_msg_psi_init(pf); if (err) { dev_err(&pdev->dev, "enetc_msg_psi_init (%d)\n", err); @@ -660,7 +555,6 @@ static int enetc_sriov_configure(struct pci_dev *pdev, int num_vfs) err_en_sriov: enetc_msg_psi_free(pf); err_msg_psi: - kfree(pf->vf_state); pf->num_vfs = 0; return err; @@ -674,19 +568,50 @@ static int enetc_pf_set_features(struct net_device *ndev, { netdev_features_t changed = ndev->features ^ features; struct enetc_ndev_priv *priv = netdev_priv(ndev); + int err; + + if (changed & NETIF_F_HW_TC) { + err = enetc_set_psfp(ndev, !!(features & NETIF_F_HW_TC)); + if (err) + return err; + } - if (changed & NETIF_F_HW_VLAN_CTAG_RX) - enetc_enable_rxvlan(&priv->si->hw, 0, - !!(features & NETIF_F_HW_VLAN_CTAG_RX)); + if (changed & NETIF_F_HW_VLAN_CTAG_FILTER) { + struct enetc_pf *pf = enetc_si_priv(priv->si); - if (changed & NETIF_F_HW_VLAN_CTAG_TX) - enetc_enable_txvlan(&priv->si->hw, 0, - !!(features & NETIF_F_HW_VLAN_CTAG_TX)); + if (!!(features & NETIF_F_HW_VLAN_CTAG_FILTER)) + enetc_disable_si_vlan_promisc(pf, 0); + else + enetc_enable_si_vlan_promisc(pf, 0); + } if (changed & NETIF_F_LOOPBACK) enetc_set_loopback(ndev, !!(features & NETIF_F_LOOPBACK)); - return enetc_set_features(ndev, features); + enetc_set_features(ndev, features); + + return 0; +} + +static int enetc_pf_setup_tc(struct net_device *ndev, enum tc_setup_type type, + void *type_data) +{ + switch (type) { + case TC_QUERY_CAPS: + return enetc_qos_query_caps(ndev, type_data); + case TC_SETUP_QDISC_MQPRIO: + return enetc_setup_tc_mqprio(ndev, type_data); + case TC_SETUP_QDISC_TAPRIO: + return enetc_setup_tc_taprio(ndev, type_data); + case TC_SETUP_QDISC_CBS: + return enetc_setup_tc_cbs(ndev, type_data); + case TC_SETUP_QDISC_ETF: + return enetc_setup_tc_txtime(ndev, type_data); + case TC_SETUP_BLOCK: + return enetc_setup_tc_psfp(ndev, type_data); + default: + return -EOPNOTSUPP; + } } static const struct net_device_ops enetc_ndev_ops = { @@ -702,127 +627,346 @@ static const struct net_device_ops enetc_ndev_ops = { .ndo_set_vf_vlan = enetc_pf_set_vf_vlan, .ndo_set_vf_spoofchk = enetc_pf_set_vf_spoofchk, .ndo_set_features = enetc_pf_set_features, + .ndo_eth_ioctl = enetc_ioctl, + .ndo_setup_tc = enetc_pf_setup_tc, + .ndo_bpf = enetc_setup_bpf, + .ndo_xdp_xmit = enetc_xdp_xmit, + .ndo_hwtstamp_get = enetc_hwtstamp_get, + .ndo_hwtstamp_set = enetc_hwtstamp_set, }; -static void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev, - const struct net_device_ops *ndev_ops) +static struct phylink_pcs * +enetc_pl_mac_select_pcs(struct phylink_config *config, phy_interface_t iface) { - struct enetc_ndev_priv *priv = netdev_priv(ndev); + struct enetc_pf *pf = phylink_to_enetc_pf(config); - SET_NETDEV_DEV(ndev, &si->pdev->dev); - priv->ndev = ndev; - priv->si = si; - priv->dev = &si->pdev->dev; - si->ndev = ndev; + return pf->pcs; +} - priv->msg_enable = (NETIF_MSG_WOL << 1) - 1; - ndev->netdev_ops = ndev_ops; - enetc_set_ethtool_ops(ndev); - ndev->watchdog_timeo = 5 * HZ; - ndev->max_mtu = ENETC_MAX_MTU; +static void enetc_pl_mac_config(struct phylink_config *config, + unsigned int mode, + const struct phylink_link_state *state) +{ + struct enetc_pf *pf = phylink_to_enetc_pf(config); - ndev->hw_features = NETIF_F_RXCSUM | NETIF_F_HW_CSUM | - NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | - NETIF_F_LOOPBACK; - ndev->features = NETIF_F_HIGHDMA | NETIF_F_SG | - NETIF_F_RXCSUM | NETIF_F_HW_CSUM | - NETIF_F_HW_VLAN_CTAG_TX | - NETIF_F_HW_VLAN_CTAG_RX | - NETIF_F_HW_VLAN_CTAG_FILTER; + enetc_mac_config(pf->si, state->interface); +} - if (si->num_rss) - ndev->hw_features |= NETIF_F_RXHASH; +static void enetc_force_rgmii_mac(struct enetc_si *si, int speed, int duplex) +{ + u32 old_val, val; + + old_val = val = enetc_port_mac_rd(si, ENETC_PM0_IF_MODE); + + if (speed == SPEED_1000) { + val &= ~ENETC_PM0_IFM_SSP_MASK; + val |= ENETC_PM0_IFM_SSP_1000; + } else if (speed == SPEED_100) { + val &= ~ENETC_PM0_IFM_SSP_MASK; + val |= ENETC_PM0_IFM_SSP_100; + } else if (speed == SPEED_10) { + val &= ~ENETC_PM0_IFM_SSP_MASK; + val |= ENETC_PM0_IFM_SSP_10; + } - if (si->errata & ENETC_ERR_TXCSUM) { - ndev->hw_features &= ~NETIF_F_HW_CSUM; - ndev->features &= ~NETIF_F_HW_CSUM; + if (duplex == DUPLEX_FULL) + val |= ENETC_PM0_IFM_FULL_DPX; + else + val &= ~ENETC_PM0_IFM_FULL_DPX; + + if (val == old_val) + return; + + enetc_port_mac_wr(si, ENETC_PM0_IF_MODE, val); +} + +static void enetc_pl_mac_link_up(struct phylink_config *config, + struct phy_device *phy, unsigned int mode, + phy_interface_t interface, int speed, + int duplex, bool tx_pause, bool rx_pause) +{ + struct enetc_pf *pf = phylink_to_enetc_pf(config); + u32 pause_off_thresh = 0, pause_on_thresh = 0; + u32 init_quanta = 0, refresh_quanta = 0; + struct enetc_hw *hw = &pf->si->hw; + struct enetc_si *si = pf->si; + struct enetc_ndev_priv *priv; + u32 rbmr, cmd_cfg; + int idx; + + priv = netdev_priv(pf->si->ndev); + + if (pf->si->hw_features & ENETC_SI_F_QBV) + enetc_sched_speed_set(priv, speed); + + if (!phylink_autoneg_inband(mode) && + phy_interface_mode_is_rgmii(interface)) + enetc_force_rgmii_mac(si, speed, duplex); + + /* Flow control */ + for (idx = 0; idx < priv->num_rx_rings; idx++) { + rbmr = enetc_rxbdr_rd(hw, idx, ENETC_RBMR); + + if (tx_pause) + rbmr |= ENETC_RBMR_CM; + else + rbmr &= ~ENETC_RBMR_CM; + + enetc_rxbdr_wr(hw, idx, ENETC_RBMR, rbmr); + } + + if (tx_pause) { + /* When the port first enters congestion, send a PAUSE request + * with the maximum number of quanta. When the port exits + * congestion, it will automatically send a PAUSE frame with + * zero quanta. + */ + init_quanta = 0xffff; + + /* Also, set up the refresh timer to send follow-up PAUSE + * frames at half the quanta value, in case the congestion + * condition persists. + */ + refresh_quanta = 0xffff / 2; + + /* Start emitting PAUSE frames when 3 large frames (or more + * smaller frames) have accumulated in the FIFO waiting to be + * DMAed to the RX ring. + */ + pause_on_thresh = 3 * ENETC_MAC_MAXFRM_SIZE; + pause_off_thresh = 1 * ENETC_MAC_MAXFRM_SIZE; } - ndev->priv_flags |= IFF_UNICAST_FLT; + enetc_port_mac_wr(si, ENETC_PM0_PAUSE_QUANTA, init_quanta); + enetc_port_mac_wr(si, ENETC_PM0_PAUSE_THRESH, refresh_quanta); + enetc_port_wr(hw, ENETC_PPAUONTR, pause_on_thresh); + enetc_port_wr(hw, ENETC_PPAUOFFTR, pause_off_thresh); - /* pick up primary MAC address from SI */ - enetc_get_primary_mac_addr(&si->hw, ndev->dev_addr); + cmd_cfg = enetc_port_mac_rd(si, ENETC_PM0_CMD_CFG); + + if (rx_pause) + cmd_cfg &= ~ENETC_PM0_PAUSE_IGN; + else + cmd_cfg |= ENETC_PM0_PAUSE_IGN; + + enetc_port_mac_wr(si, ENETC_PM0_CMD_CFG, cmd_cfg); + + enetc_mac_enable(si, true); + + if (si->hw_features & ENETC_SI_F_QBU) + enetc_mm_link_state_update(priv, true); } -static int enetc_of_get_phy(struct enetc_ndev_priv *priv) +static void enetc_pl_mac_link_down(struct phylink_config *config, + unsigned int mode, + phy_interface_t interface) { - struct device_node *np = priv->dev->of_node; - int err; + struct enetc_pf *pf = phylink_to_enetc_pf(config); + struct enetc_si *si = pf->si; + struct enetc_ndev_priv *priv; - if (!np) { - dev_err(priv->dev, "missing ENETC port node\n"); + priv = netdev_priv(si->ndev); + + if (si->hw_features & ENETC_SI_F_QBU) + enetc_mm_link_state_update(priv, false); + + enetc_mac_enable(si, false); +} + +static const struct phylink_mac_ops enetc_mac_phylink_ops = { + .mac_select_pcs = enetc_pl_mac_select_pcs, + .mac_config = enetc_pl_mac_config, + .mac_link_up = enetc_pl_mac_link_up, + .mac_link_down = enetc_pl_mac_link_down, +}; + +/* Initialize the entire shared memory for the flow steering entries + * of this port (PF + VFs) + */ +static int enetc_init_port_rfs_memory(struct enetc_si *si) +{ + struct enetc_cmd_rfse rfse = {0}; + struct enetc_hw *hw = &si->hw; + int num_rfs, i, err = 0; + u32 val; + + val = enetc_port_rd(hw, ENETC_PRFSCAPR); + num_rfs = ENETC_PRFSCAPR_GET_NUM_RFS(val); + + for (i = 0; i < num_rfs; i++) { + err = enetc_set_fs_entry(si, &rfse, i); + if (err) + break; + } + + return err; +} + +static int enetc_init_port_rss_memory(struct enetc_si *si) +{ + struct enetc_hw *hw = &si->hw; + int num_rss, err; + int *rss_table; + u32 val; + + val = enetc_port_rd(hw, ENETC_PRSSCAPR); + num_rss = ENETC_PRSSCAPR_GET_NUM_RSS(val); + if (!num_rss) + return 0; + + rss_table = kcalloc(num_rss, sizeof(*rss_table), GFP_KERNEL); + if (!rss_table) + return -ENOMEM; + + err = enetc_set_rss_table(si, rss_table, num_rss); + + kfree(rss_table); + + return err; +} + +static int enetc_pf_register_with_ierb(struct pci_dev *pdev) +{ + struct platform_device *ierb_pdev; + struct device_node *ierb_node; + int ret; + + ierb_node = of_find_compatible_node(NULL, NULL, + "fsl,ls1028a-enetc-ierb"); + if (!ierb_node) + return -ENODEV; + + if (!of_device_is_available(ierb_node)) { + of_node_put(ierb_node); return -ENODEV; } - priv->phy_node = of_parse_phandle(np, "phy-handle", 0); - if (!priv->phy_node) { - if (!of_phy_is_fixed_link(np)) { - dev_err(priv->dev, "PHY not specified\n"); - return -ENODEV; - } + ierb_pdev = of_find_device_by_node(ierb_node); + of_node_put(ierb_node); - err = of_phy_register_fixed_link(np); - if (err < 0) { - dev_err(priv->dev, "fixed link registration failed\n"); - return err; - } + if (!ierb_pdev) + return -EPROBE_DEFER; + + ret = enetc_ierb_register_pf(ierb_pdev, pdev); + + put_device(&ierb_pdev->dev); + + return ret; +} + +static const struct enetc_si_ops enetc_psi_ops = { + .get_rss_table = enetc_get_rss_table, + .set_rss_table = enetc_set_rss_table, +}; - priv->phy_node = of_node_get(np); +static struct enetc_si *enetc_psi_create(struct pci_dev *pdev) +{ + struct enetc_si *si; + int err; + + err = enetc_pci_probe(pdev, KBUILD_MODNAME, sizeof(struct enetc_pf)); + if (err) { + dev_err_probe(&pdev->dev, err, "PCI probing failed\n"); + goto out; } - priv->if_mode = of_get_phy_mode(np); - if (priv->if_mode < 0) { - dev_err(priv->dev, "missing phy type\n"); - of_node_put(priv->phy_node); - if (of_phy_is_fixed_link(np)) - of_phy_deregister_fixed_link(np); + si = pci_get_drvdata(pdev); + if (!si->hw.port || !si->hw.global) { + err = -ENODEV; + dev_err(&pdev->dev, "could not map PF space, probing a VF?\n"); + goto out_pci_remove; + } - return -EINVAL; + si->revision = enetc_get_ip_revision(&si->hw); + si->ops = &enetc_psi_ops; + err = enetc_get_driver_data(si); + if (err) { + dev_err(&pdev->dev, "Could not get PF driver data\n"); + goto out_pci_remove; } - return 0; + err = enetc_setup_cbdr(&pdev->dev, &si->hw, ENETC_CBDR_DEFAULT_SIZE, + &si->cbd_ring); + if (err) + goto out_pci_remove; + + err = enetc_init_port_rfs_memory(si); + if (err) { + dev_err(&pdev->dev, "Failed to initialize RFS memory\n"); + goto out_teardown_cbdr; + } + + err = enetc_init_port_rss_memory(si); + if (err) { + dev_err(&pdev->dev, "Failed to initialize RSS memory\n"); + goto out_teardown_cbdr; + } + + return si; + +out_teardown_cbdr: + enetc_teardown_cbdr(&si->cbd_ring); +out_pci_remove: + enetc_pci_remove(pdev); +out: + return ERR_PTR(err); } -static void enetc_of_put_phy(struct enetc_ndev_priv *priv) +static void enetc_psi_destroy(struct pci_dev *pdev) { - struct device_node *np = priv->dev->of_node; + struct enetc_si *si = pci_get_drvdata(pdev); - if (np && of_phy_is_fixed_link(np)) - of_phy_deregister_fixed_link(np); - if (priv->phy_node) - of_node_put(priv->phy_node); + enetc_teardown_cbdr(&si->cbd_ring); + enetc_pci_remove(pdev); } +static const struct enetc_pf_ops enetc_pf_ops = { + .set_si_primary_mac = enetc_pf_set_primary_mac_addr, + .get_si_primary_mac = enetc_pf_get_primary_mac_addr, + .create_pcs = enetc_pf_create_pcs, + .destroy_pcs = enetc_pf_destroy_pcs, + .enable_psfp = enetc_psfp_enable, +}; + static int enetc_pf_probe(struct pci_dev *pdev, const struct pci_device_id *ent) { + struct device_node *node = pdev->dev.of_node; struct enetc_ndev_priv *priv; struct net_device *ndev; struct enetc_si *si; struct enetc_pf *pf; int err; - if (pdev->dev.of_node && !of_device_is_available(pdev->dev.of_node)) { - dev_info(&pdev->dev, "device is disabled, skipping\n"); - return -ENODEV; - } - - err = enetc_pci_probe(pdev, KBUILD_MODNAME, sizeof(*pf)); - if (err) { - dev_err(&pdev->dev, "PCI probing failed\n"); + err = enetc_pf_register_with_ierb(pdev); + if (err == -EPROBE_DEFER) return err; - } - - si = pci_get_drvdata(pdev); - if (!si->hw.port || !si->hw.global) { - err = -ENODEV; - dev_err(&pdev->dev, "could not map PF space, probing a VF?\n"); - goto err_map_pf_space; + if (err) + dev_warn(&pdev->dev, + "Could not register with IERB driver: %pe, please update the device tree\n", + ERR_PTR(err)); + + si = enetc_psi_create(pdev); + if (IS_ERR(si)) { + err = PTR_ERR(si); + goto err_psi_create; } pf = enetc_si_priv(si); pf->si = si; + pf->ops = &enetc_pf_ops; + pf->total_vfs = pci_sriov_get_totalvfs(pdev); + if (pf->total_vfs) { + pf->vf_state = kcalloc(pf->total_vfs, sizeof(struct enetc_vf_state), + GFP_KERNEL); + if (!pf->vf_state) + goto err_alloc_vf_state; + } + + err = enetc_setup_mac_addresses(node, pf); + if (err) + goto err_setup_mac_addresses; enetc_configure_port(pf); @@ -839,6 +983,8 @@ static int enetc_pf_probe(struct pci_dev *pdev, priv = netdev_priv(ndev); + mutex_init(&priv->mm_lock); + enetc_init_si_rings_params(priv); err = enetc_alloc_si_resources(priv); @@ -847,39 +993,57 @@ static int enetc_pf_probe(struct pci_dev *pdev, goto err_alloc_si_res; } + err = enetc_configure_si(priv); + if (err) { + dev_err(&pdev->dev, "Failed to configure SI\n"); + goto err_config_si; + } + err = enetc_alloc_msix(priv); if (err) { dev_err(&pdev->dev, "MSIX alloc failed\n"); goto err_alloc_msix; } - err = enetc_of_get_phy(priv); + err = of_get_phy_mode(node, &pf->if_mode); + if (err) { + dev_err(&pdev->dev, "Failed to read PHY mode\n"); + goto err_phy_mode; + } + + err = enetc_mdiobus_create(pf, node); + if (err) + goto err_mdiobus_create; + + err = enetc_phylink_create(priv, node, &enetc_mac_phylink_ops); if (err) - dev_warn(&pdev->dev, "Fallback to PHY-less operation\n"); + goto err_phylink_create; err = register_netdev(ndev); if (err) goto err_reg_netdev; - netif_carrier_off(ndev); - - netif_info(priv, probe, ndev, "%s v%s\n", - enetc_drv_name, enetc_drv_ver); - return 0; err_reg_netdev: - enetc_of_put_phy(priv); + enetc_phylink_destroy(priv); +err_phylink_create: + enetc_mdiobus_destroy(pf); +err_mdiobus_create: +err_phy_mode: enetc_free_msix(priv); +err_config_si: err_alloc_msix: enetc_free_si_resources(priv); err_alloc_si_res: si->ndev = NULL; free_netdev(ndev); err_alloc_netdev: -err_map_pf_space: - enetc_pci_remove(pdev); - +err_setup_mac_addresses: + kfree(pf->vf_state); +err_alloc_vf_state: + enetc_psi_destroy(pdev); +err_psi_create: return err; } @@ -889,25 +1053,43 @@ static void enetc_pf_remove(struct pci_dev *pdev) struct enetc_pf *pf = enetc_si_priv(si); struct enetc_ndev_priv *priv; + priv = netdev_priv(si->ndev); + if (pf->num_vfs) enetc_sriov_configure(pdev, 0); - priv = netdev_priv(si->ndev); - netif_info(priv, drv, si->ndev, "%s v%s remove\n", - enetc_drv_name, enetc_drv_ver); - unregister_netdev(si->ndev); - enetc_of_put_phy(priv); + enetc_phylink_destroy(priv); + enetc_mdiobus_destroy(pf); enetc_free_msix(priv); enetc_free_si_resources(priv); free_netdev(si->ndev); + kfree(pf->vf_state); - enetc_pci_remove(pdev); + enetc_psi_destroy(pdev); +} + +static void enetc_fixup_clear_rss_rfs(struct pci_dev *pdev) +{ + struct device_node *node = pdev->dev.of_node; + struct enetc_si *si; + + /* Only apply quirk for disabled functions. For the ones + * that are enabled, enetc_pf_probe() will apply it. + */ + if (node && of_device_is_available(node)) + return; + + si = enetc_psi_create(pdev); + if (!IS_ERR(si)) + enetc_psi_destroy(pdev); } +DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID_PF, + enetc_fixup_clear_rss_rfs); static const struct pci_device_id enetc_pf_id_table[] = { { PCI_DEVICE(PCI_VENDOR_ID_FREESCALE, ENETC_DEV_ID_PF) }, @@ -928,4 +1110,3 @@ module_pci_driver(enetc_pf_driver); MODULE_DESCRIPTION(ENETC_DRV_NAME_STR); MODULE_LICENSE("Dual BSD/GPL"); -MODULE_VERSION(ENETC_DRV_VER_STR); |
