| Message ID | 20241015125841.1075560-13-wei.fang@nxp.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
| Series | add basic support for i.MX95 NETC | expand |
On Tue, Oct 15, 2024 at 08:58:40PM +0800, Wei Fang wrote: > The i.MX95 ENETC has been upgraded to revision 4.1, which is very > different from the LS1028A ENETC (revision 1.0) except for the SI > part. Therefore, the fsl-enetc driver is incompatible with i.MX95 > ENETC PF. So add new nxp-enetc4 driver to support i.MX95 ENETC PF, > and this driver will be used to support the ENETC PF with major > revision 4 for other SoCs in the future. > > Currently, the nxp-enetc4 driver only supports basic transmission > feature for i.MX95 ENETC PF, the more basic and advanced features > will be added in the subsequent patches. Nit: wrap at 75 char. > > Signed-off-by: Wei Fang <wei.fang@nxp.com> > --- > v2 changes: > 1. Refine the commit message. > 2. Sort the header files. > 3. Use dev_err_probe() in enetc4_pf_probe(). > 4. Remove unused variable 'pf' from enetc4_pf_remove(). > --- > drivers/net/ethernet/freescale/enetc/Kconfig | 17 + > drivers/net/ethernet/freescale/enetc/Makefile | 3 + > drivers/net/ethernet/freescale/enetc/enetc.c | 50 +- > drivers/net/ethernet/freescale/enetc/enetc.h | 19 +- > .../net/ethernet/freescale/enetc/enetc4_hw.h | 153 ++++ > .../net/ethernet/freescale/enetc/enetc4_pf.c | 757 ++++++++++++++++++ > .../ethernet/freescale/enetc/enetc_ethtool.c | 68 +- > .../net/ethernet/freescale/enetc/enetc_hw.h | 12 +- > .../net/ethernet/freescale/enetc/enetc_pf.h | 9 + > .../freescale/enetc/enetc_pf_common.c | 10 +- > 10 files changed, 1076 insertions(+), 22 deletions(-) > create mode 100644 drivers/net/ethernet/freescale/enetc/enetc4_hw.h > create mode 100644 drivers/net/ethernet/freescale/enetc/enetc4_pf.c > > diff --git a/drivers/net/ethernet/freescale/enetc/Kconfig b/drivers/net/ethernet/freescale/enetc/Kconfig > index fdd3ecbd1dbf..750281e3d285 100644 > --- a/drivers/net/ethernet/freescale/enetc/Kconfig > +++ b/drivers/net/ethernet/freescale/enetc/Kconfig > @@ -33,6 +33,23 @@ config FSL_ENETC > > If compiled as module (M), the module name is fsl-enetc. > > +config NXP_ENETC4 > + tristate "ENETC4 PF driver" > + depends on PCI_MSI > + select MDIO_DEVRES > + select FSL_ENETC_CORE > + select FSL_ENETC_MDIO > + select NXP_ENETC_PF_COMMON > + select PHYLINK > + select DIMLIB > + help > + This driver supports NXP ENETC devices with major revision 4. ENETC is > + as the NIC functionality in NETC, it supports virtualization/isolation > + based on PCIe Single Root IO Virtualization (SR-IOV) and a full range > + of TSN standards and NIC offload capabilities. > + > + If compiled as module (M), the module name is nxp-enetc4. > + > config FSL_ENETC_VF > tristate "ENETC VF driver" > depends on PCI_MSI > diff --git a/drivers/net/ethernet/freescale/enetc/Makefile b/drivers/net/ethernet/freescale/enetc/Makefile > index b81ca462e358..5417815957b5 100644 > --- a/drivers/net/ethernet/freescale/enetc/Makefile > +++ b/drivers/net/ethernet/freescale/enetc/Makefile > @@ -11,6 +11,9 @@ fsl-enetc-y := enetc_pf.o > fsl-enetc-$(CONFIG_PCI_IOV) += enetc_msg.o > fsl-enetc-$(CONFIG_FSL_ENETC_QOS) += enetc_qos.o > > +obj-$(CONFIG_NXP_ENETC4) += nxp-enetc4.o > +nxp-enetc4-y := enetc4_pf.o > + > obj-$(CONFIG_FSL_ENETC_VF) += fsl-enetc-vf.o > fsl-enetc-vf-y := enetc_vf.o > > diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c > index 72ddf8b16271..fd7a9dae9e14 100644 > --- a/drivers/net/ethernet/freescale/enetc/enetc.c > +++ b/drivers/net/ethernet/freescale/enetc/enetc.c > @@ -2,6 +2,7 @@ > /* Copyright 2017-2019 NXP */ > > #include "enetc.h" > +#include <linux/clk.h> > #include <linux/bpf_trace.h> > #include <linux/tcp.h> > #include <linux/udp.h> > @@ -21,7 +22,7 @@ void enetc_port_mac_wr(struct enetc_si *si, u32 reg, u32 val) > { > enetc_port_wr(&si->hw, reg, val); > if (si->hw_features & ENETC_SI_F_QBU) > - enetc_port_wr(&si->hw, reg + ENETC_PMAC_OFFSET, val); > + enetc_port_wr(&si->hw, reg + si->pmac_offset, val); > } > EXPORT_SYMBOL_GPL(enetc_port_mac_wr); > > @@ -700,8 +701,10 @@ static void enetc_rx_dim_work(struct work_struct *w) > net_dim_get_rx_moderation(dim->mode, dim->profile_ix); > struct enetc_int_vector *v = > container_of(dim, struct enetc_int_vector, rx_dim); > + struct enetc_ndev_priv *priv = netdev_priv(v->rx_ring.ndev); > + u64 clk_freq = priv->si->clk_freq; > > - v->rx_ictt = enetc_usecs_to_cycles(moder.usec); > + v->rx_ictt = enetc_usecs_to_cycles(moder.usec, clk_freq); > dim->state = DIM_START_MEASURE; > } > > @@ -1721,14 +1724,25 @@ void enetc_get_si_caps(struct enetc_si *si) > struct enetc_hw *hw = &si->hw; > u32 val; > > + if (is_enetc_rev1(si)) > + si->clk_freq = ENETC_CLK; > + else > + si->clk_freq = ENETC_CLK_333M; > + As pervious suggested if use pci drvdata, needn't this check branch si->clk_freq = drvdata->clk_frq; > /* find out how many of various resources we have to work with */ > val = enetc_rd(hw, ENETC_SICAPR0); > si->num_rx_rings = (val >> 16) & 0xff; > si->num_tx_rings = val & 0xff; > > - val = enetc_rd(hw, ENETC_SIRFSCAPR); > - si->num_fs_entries = ENETC_SIRFSCAPR_GET_NUM_RFS(val); > - si->num_fs_entries = min(si->num_fs_entries, ENETC_MAX_RFS_SIZE); > + val = enetc_rd(hw, ENETC_SIPCAPR0); > + if (val & ENETC_SIPCAPR0_RFS) { > + val = enetc_rd(hw, ENETC_SIRFSCAPR); > + si->num_fs_entries = ENETC_SIRFSCAPR_GET_NUM_RFS(val); > + si->num_fs_entries = min(si->num_fs_entries, ENETC_MAX_RFS_SIZE); > + } else { > + /* ENETC which not supports RFS */ > + si->num_fs_entries = 0; > + } > > si->num_rss = 0; > val = enetc_rd(hw, ENETC_SIPCAPR0); > @@ -1742,8 +1756,11 @@ void enetc_get_si_caps(struct enetc_si *si) > if (val & ENETC_SIPCAPR0_QBV) > si->hw_features |= ENETC_SI_F_QBV; > > - if (val & ENETC_SIPCAPR0_QBU) > + if (val & ENETC_SIPCAPR0_QBU) { > si->hw_features |= ENETC_SI_F_QBU; > + si->pmac_offset = is_enetc_rev1(si) ? ENETC_PMAC_OFFSET : > + ENETC4_PMAC_OFFSET; > + } > > if (val & ENETC_SIPCAPR0_PSFP) > si->hw_features |= ENETC_SI_F_PSFP; > @@ -2056,7 +2073,7 @@ int enetc_configure_si(struct enetc_ndev_priv *priv) > /* enable SI */ > enetc_wr(hw, ENETC_SIMR, ENETC_SIMR_EN); > > - if (si->num_rss) { > + if (si->num_rss && is_enetc_rev1(si)) { > err = enetc_setup_default_rss_table(si, priv->num_rx_rings); > if (err) > return err; > @@ -2080,9 +2097,15 @@ void enetc_init_si_rings_params(struct enetc_ndev_priv *priv) > */ > priv->num_rx_rings = min_t(int, cpus, si->num_rx_rings); > priv->num_tx_rings = si->num_tx_rings; > - priv->bdr_int_num = cpus; > + if (is_enetc_rev1(si)) { > + priv->bdr_int_num = cpus; > + priv->tx_ictt = enetc_usecs_to_cycles(600, ENETC_CLK); > + } else { > + priv->bdr_int_num = priv->num_rx_rings; > + priv->tx_ictt = enetc_usecs_to_cycles(500, ENETC_CLK_333M); > + } > + why need 500/600 for difference version? Maybe priv->tx_ictt = enetc_usecs_to_cycles(500, si-> clk_freq); > priv->ic_mode = ENETC_IC_RX_ADAPTIVE | ENETC_IC_TX_MANUAL; > - priv->tx_ictt = ENETC_TXIC_TIMETHR; > } > EXPORT_SYMBOL_GPL(enetc_init_si_rings_params); > > @@ -2475,10 +2498,14 @@ int enetc_open(struct net_device *ndev) > > extended = !!(priv->active_offloads & ENETC_F_RX_TSTAMP); > > - err = enetc_setup_irqs(priv); > + err = clk_prepare_enable(priv->ref_clk); > if (err) > return err; > > + err = enetc_setup_irqs(priv); > + if (err) > + goto err_setup_irqs; > + > err = enetc_phylink_connect(ndev); > if (err) > goto err_phy_connect; > @@ -2510,6 +2537,8 @@ int enetc_open(struct net_device *ndev) > phylink_disconnect_phy(priv->phylink); > err_phy_connect: > enetc_free_irqs(priv); > +err_setup_irqs: > + clk_disable_unprepare(priv->ref_clk); > > return err; > } > @@ -2559,6 +2588,7 @@ int enetc_close(struct net_device *ndev) > enetc_assign_tx_resources(priv, NULL); > > enetc_free_irqs(priv); > + clk_disable_unprepare(priv->ref_clk); > > return 0; > } > diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h > index 97524dfa234c..7f1ea11c33a0 100644 > --- a/drivers/net/ethernet/freescale/enetc/enetc.h > +++ b/drivers/net/ethernet/freescale/enetc/enetc.h > @@ -14,6 +14,7 @@ > #include <net/xdp.h> > > #include "enetc_hw.h" > +#include "enetc4_hw.h" > > #define ENETC_MAC_MAXFRM_SIZE 9600 > #define ENETC_MAX_MTU (ENETC_MAC_MAXFRM_SIZE - \ > @@ -222,6 +223,7 @@ struct enetc_msg_swbd { > }; > > #define ENETC_REV1 0x1 > +#define ENETC_REV4 0x4 > enum enetc_errata { > ENETC_ERR_VLAN_ISOL = BIT(0), > ENETC_ERR_UCMCSWP = BIT(1), > @@ -247,10 +249,22 @@ struct enetc_si { > int num_rss; /* number of RSS buckets */ > unsigned short pad; > int hw_features; > + int pmac_offset; /* Only valid for PSI which supports 802.1Qbu */ > + u64 clk_freq; > }; > > #define ENETC_SI_ALIGN 32 > > +static inline bool is_enetc_rev1(struct enetc_si *si) > +{ > + return si->pdev->revision == ENETC_REV1; > +} > + > +static inline bool is_enetc_rev4(struct enetc_si *si) > +{ > + return si->pdev->revision == ENETC_REV4; > +} > + > static inline void *enetc_si_priv(const struct enetc_si *si) > { > return (char *)si + ALIGN(sizeof(struct enetc_si), ENETC_SI_ALIGN); > @@ -302,7 +316,7 @@ struct enetc_cls_rule { > int used; > }; > > -#define ENETC_MAX_BDR_INT 2 /* fixed to max # of available cpus */ > +#define ENETC_MAX_BDR_INT 6 /* fixed to max # of available cpus */ > struct psfp_cap { > u32 max_streamid; > u32 max_psfp_filter; > @@ -340,7 +354,6 @@ enum enetc_ic_mode { > > #define ENETC_RXIC_PKTTHR min_t(u32, 256, ENETC_RX_RING_DEFAULT_SIZE / 2) > #define ENETC_TXIC_PKTTHR min_t(u32, 128, ENETC_TX_RING_DEFAULT_SIZE / 2) > -#define ENETC_TXIC_TIMETHR enetc_usecs_to_cycles(600) > > struct enetc_ndev_priv { > struct net_device *ndev; > @@ -388,6 +401,8 @@ struct enetc_ndev_priv { > * and link state updates > */ > struct mutex mm_lock; > + > + struct clk *ref_clk; /* RGMII/RMII reference clock */ > }; > > /* Messaging */ > diff --git a/drivers/net/ethernet/freescale/enetc/enetc4_hw.h b/drivers/net/ethernet/freescale/enetc/enetc4_hw.h > new file mode 100644 > index 000000000000..0b2a35189e9d > --- /dev/null > +++ b/drivers/net/ethernet/freescale/enetc/enetc4_hw.h > @@ -0,0 +1,153 @@ > +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ > +/* > + * This header file defines the register offsets and bit fields > + * of ENETC4 PF and VFs. Note that the same registers as ENETC > + * version 1.0 are defined in the enetc_hw.h file. > + * > + * Copyright 2024 NXP > + */ > +#ifndef __ENETC4_HW_H_ > +#define __ENETC4_HW_H_ > + > +/***************************ENETC port registers**************************/ > +#define ENETC4_ECAPR0 0x0 > +#define ECAPR0_RFS BIT(2) > +#define ECAPR0_TSD BIT(5) > +#define ECAPR0_RSS BIT(8) > +#define ECAPR0_RSC BIT(9) > +#define ECAPR0_LSO BIT(10) > +#define ECAPR0_WO BIT(13) > + > +#define ENETC4_ECAPR1 0x4 > +#define ECAPR1_NUM_TCS GENMASK(6, 4) > +#define ECAPR1_NUM_MCH GENMASK(9, 8) > +#define ECAPR1_NUM_UCH GENMASK(11, 10) > +#define ECAPR1_NUM_MSIX GENMASK(22, 12) > +#define ECAPR1_NUM_VSI GENMASK(27, 24) > +#define ECAPR1_NUM_IPV BIT(31) > + > +#define ENETC4_ECAPR2 0x8 > +#define ECAPR2_NUM_TX_BDR GENMASK(9, 0) > +#define ECAPR2_NUM_RX_BDR GENMASK(25, 16) > + > +#define ENETC4_PMR 0x10 > +#define PMR_SI_EN(a) BIT((16 + (a))) > + > +/* Port Pause ON/OFF threshold register */ > +#define ENETC4_PPAUONTR 0x108 > +#define ENETC4_PPAUOFFTR 0x10c > + > +/* Port Station interface promiscuous MAC mode register */ > +#define ENETC4_PSIPMMR 0x200 > +#define PSIPMMR_SI0_MAC_UP BIT(0) > +#define PSIPMMR_SI_MAC_UP GENMASK(2, 0) > +#define PSIPMMR_SI0_MAC_MP BIT(16) > +#define PSIPMMR_SI_MAC_MP GENMASK(18, 16) > + > +/* Port Station interface promiscuous VLAN mode register */ > +#define ENETC4_PSIPVMR 0x204 > + > +/* Port RSS key register n. n = 0,1,2,...,9 */ > +#define ENETC4_PRSSKR(n) ((n) * 0x4 + 0x250) > + > +/* Port station interface MAC address filtering capability register */ > +#define ENETC4_PSIMAFCAPR 0x280 > +#define PSIMAFCAPR_NUM_MAC_AFTE GENMASK(11, 0) > + > +/* Port station interface VLAN filtering capability register */ > +#define ENETC4_PSIVLANFCAPR 0x2c0 > +#define PSIVLANFCAPR_NUM_VLAN_FTE GENMASK(11, 0) > + > +/* Port station interface VLAN filtering mode register */ > +#define ENETC4_PSIVLANFMR 0x2c4 > +#define PSIVLANFMR_VS BIT(0) > + > +/* Port Station interface a primary MAC address registers */ > +#define ENETC4_PSIPMAR0(a) ((a) * 0x80 + 0x2000) > +#define ENETC4_PSIPMAR1(a) ((a) * 0x80 + 0x2004) > + > +/* Port station interface a configuration register 0/2 */ > +#define ENETC4_PSICFGR0(a) ((a) * 0x80 + 0x2010) > +#define PSICFGR0_VASE BIT(13) > +#define PSICFGR0_ASE BIT(15) > +#define PSICFGR0_ANTI_SPOOFING (PSICFGR0_VASE | PSICFGR0_ASE) > + > +#define ENETC4_PSICFGR2(a) ((a) * 0x80 + 0x2018) > + > +#define ENETC4_PMCAPR 0x4004 > +#define PMCAPR_HD BIT(8) > +#define PMCAPR_FP GENMASK(10, 9) > + > +/* Port configuration register */ > +#define ENETC4_PCR 0x4010 > +#define PCR_HDR_FMT BIT(0) > +#define PCR_L2DOSE BIT(4) > +#define PCR_TIMER_CS BIT(8) > +#define PCR_PSPEED GENMASK(29, 16) > +#define PCR_PSPEED_VAL(speed) (((speed) / 10 - 1) << 16) > + > +/* Port MAC address register 0/1 */ > +#define ENETC4_PMAR0 0x4020 > +#define ENETC4_PMAR1 0x4024 > + > +/* Port operational register */ > +#define ENETC4_POR 0x4100 > + > +/* Port traffic class a transmit maximum SDU register */ > +#define ENETC4_PTCTMSDUR(a) ((a) * 0x20 + 0x4208) > +#define PTCTMSDUR_MAXSDU GENMASK(15, 0) > +#define PTCTMSDUR_SDU_TYPE GENMASK(17, 16) > +#define SDU_TYPE_PPDU 0 > +#define SDU_TYPE_MPDU 1 > +#define SDU_TYPE_MSDU 2 > + > +#define ENETC4_PMAC_OFFSET 0x400 > +#define ENETC4_PM_CMD_CFG(mac) (0x5008 + (mac) * 0x400) > +#define PM_CMD_CFG_TX_EN BIT(0) > +#define PM_CMD_CFG_RX_EN BIT(1) > +#define PM_CMD_CFG_PAUSE_FWD BIT(7) > +#define PM_CMD_CFG_PAUSE_IGN BIT(8) > +#define PM_CMD_CFG_TX_ADDR_INS BIT(9) > +#define PM_CMD_CFG_LOOP_EN BIT(10) > +#define PM_CMD_CFG_LPBK_MODE GENMASK(12, 11) > +#define LPBCK_MODE_EXT_TX_CLK 0 > +#define LPBCK_MODE_MAC_LEVEL 1 > +#define LPBCK_MODE_INT_TX_CLK 2 > +#define PM_CMD_CFG_CNT_FRM_EN BIT(13) > +#define PM_CMD_CFG_TXP BIT(15) > +#define PM_CMD_CFG_SEND_IDLE BIT(16) > +#define PM_CMD_CFG_HD_FCEN BIT(18) > +#define PM_CMD_CFG_SFD BIT(21) > +#define PM_CMD_CFG_TX_FLUSH BIT(22) > +#define PM_CMD_CFG_TX_LOWP_EN BIT(23) > +#define PM_CMD_CFG_RX_LOWP_EMPTY BIT(24) > +#define PM_CMD_CFG_SWR BIT(26) > +#define PM_CMD_CFG_TS_MODE BIT(30) > +#define PM_CMD_CFG_MG BIT(31) > + > +/* Port MAC 0/1 Maximum Frame Length Register */ > +#define ENETC4_PM_MAXFRM(mac) (0x5014 + (mac) * 0x400) > + > +/* Port MAC 0/1 Pause Quanta Register */ > +#define ENETC4_PM_PAUSE_QUANTA(mac) (0x5054 + (mac) * 0x400) > + > +/* Port MAC 0/1 Pause Quanta Threshold Register */ > +#define ENETC4_PM_PAUSE_THRESH(mac) (0x5064 + (mac) * 0x400) > + > +/* Port MAC 0 Interface Mode Control Register */ > +#define ENETC4_PM_IF_MODE(mac) (0x5300 + (mac) * 0x400) > +#define PM_IF_MODE_IFMODE GENMASK(2, 0) > +#define IFMODE_XGMII 0 > +#define IFMODE_RMII 3 > +#define IFMODE_RGMII 4 > +#define IFMODE_SGMII 5 > +#define PM_IF_MODE_REVMII BIT(3) > +#define PM_IF_MODE_M10 BIT(4) > +#define PM_IF_MODE_HD BIT(6) > +#define PM_IF_MODE_SSP GENMASK(14, 13) > +#define SSP_100M 0 > +#define SSP_10M 1 > +#define SSP_1G 2 > +#define PM_IF_MODE_ENA BIT(15) > + > +#endif > diff --git a/drivers/net/ethernet/freescale/enetc/enetc4_pf.c b/drivers/net/ethernet/freescale/enetc/enetc4_pf.c > new file mode 100644 > index 000000000000..cde529a19f13 > --- /dev/null > +++ b/drivers/net/ethernet/freescale/enetc/enetc4_pf.c > @@ -0,0 +1,757 @@ > +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) > +/* Copyright 2024 NXP */ > +#include <linux/clk.h> > +#include <linux/fsl/netc_global.h> > +#include <linux/module.h> > +#include <linux/of_net.h> > +#include <linux/of_platform.h> > +#include <linux/pinctrl/consumer.h> > +#include <linux/unaligned.h> > + > +#include "enetc_pf.h" > + > +#define ENETC_SI_MAX_RING_NUM 8 > + > +static void enetc4_get_port_caps(struct enetc_pf *pf) > +{ > + struct enetc_hw *hw = &pf->si->hw; > + u32 val; > + > + val = enetc_port_rd(hw, ENETC4_ECAPR1); > + pf->caps.num_vsi = (val & ECAPR1_NUM_VSI) >> 24; > + pf->caps.num_msix = ((val & ECAPR1_NUM_MSIX) >> 12) + 1; > + > + val = enetc_port_rd(hw, ENETC4_ECAPR2); > + pf->caps.num_rx_bdr = (val & ECAPR2_NUM_RX_BDR) >> 16; > + pf->caps.num_tx_bdr = val & ECAPR2_NUM_TX_BDR; > + > + val = enetc_port_rd(hw, ENETC4_PMCAPR); > + pf->caps.half_duplex = (val & PMCAPR_HD) ? 1 : 0; > +} > + > +static void enetc4_pf_set_si_primary_mac(struct enetc_hw *hw, int si, > + const u8 *addr) > +{ > + u16 lower = get_unaligned_le16(addr + 4); > + u32 upper = get_unaligned_le32(addr); > + > + if (si != 0) { > + __raw_writel(upper, hw->port + ENETC4_PSIPMAR0(si)); > + __raw_writew(lower, hw->port + ENETC4_PSIPMAR1(si)); > + } else { > + __raw_writel(upper, hw->port + ENETC4_PMAR0); > + __raw_writew(lower, hw->port + ENETC4_PMAR1); > + } > +} > + > +static void enetc4_pf_get_si_primary_mac(struct enetc_hw *hw, int si, > + u8 *addr) > +{ > + u32 upper; > + u16 lower; > + > + upper = __raw_readl(hw->port + ENETC4_PSIPMAR0(si)); > + lower = __raw_readw(hw->port + ENETC4_PSIPMAR1(si)); > + > + put_unaligned_le32(upper, addr); > + put_unaligned_le16(lower, addr + 4); > +} > + > +static const struct enetc_pf_ops enetc4_pf_ops = { > + .set_si_primary_mac = enetc4_pf_set_si_primary_mac, > + .get_si_primary_mac = enetc4_pf_get_si_primary_mac, > +}; > + > +static int enetc4_pf_struct_init(struct enetc_si *si) > +{ > + struct enetc_pf *pf = enetc_si_priv(si); > + > + pf->si = si; > + pf->total_vfs = pci_sriov_get_totalvfs(si->pdev); > + > + enetc4_get_port_caps(pf); > + enetc_pf_ops_register(pf, &enetc4_pf_ops); > + > + return 0; > +} > + > +static u32 enetc4_psicfgr0_val_construct(bool is_vf, u32 num_tx_bdr, u32 num_rx_bdr) > +{ > + u32 val; > + > + val = ENETC_PSICFGR0_SET_TXBDR(num_tx_bdr); > + val |= ENETC_PSICFGR0_SET_RXBDR(num_rx_bdr); > + val |= ENETC_PSICFGR0_SIVC(ENETC_VLAN_TYPE_C | ENETC_VLAN_TYPE_S); > + > + if (is_vf) > + val |= ENETC_PSICFGR0_VTE | ENETC_PSICFGR0_SIVIE; > + > + return val; > +} > + > +static void enetc4_default_rings_allocation(struct enetc_pf *pf) > +{ > + struct enetc_hw *hw = &pf->si->hw; > + u32 num_rx_bdr, num_tx_bdr, val; > + u32 vf_tx_bdr, vf_rx_bdr; > + int i, rx_rem, tx_rem; > + > + if (pf->caps.num_rx_bdr < ENETC_SI_MAX_RING_NUM + pf->caps.num_vsi) > + num_rx_bdr = pf->caps.num_rx_bdr - pf->caps.num_vsi; > + else > + num_rx_bdr = ENETC_SI_MAX_RING_NUM; > + > + if (pf->caps.num_tx_bdr < ENETC_SI_MAX_RING_NUM + pf->caps.num_vsi) > + num_tx_bdr = pf->caps.num_tx_bdr - pf->caps.num_vsi; > + else > + num_tx_bdr = ENETC_SI_MAX_RING_NUM; > + > + val = enetc4_psicfgr0_val_construct(false, num_tx_bdr, num_rx_bdr); > + enetc_port_wr(hw, ENETC4_PSICFGR0(0), val); > + > + num_rx_bdr = pf->caps.num_rx_bdr - num_rx_bdr; > + rx_rem = num_rx_bdr % pf->caps.num_vsi; > + num_rx_bdr = num_rx_bdr / pf->caps.num_vsi; > + > + num_tx_bdr = pf->caps.num_tx_bdr - num_tx_bdr; > + tx_rem = num_tx_bdr % pf->caps.num_vsi; > + num_tx_bdr = num_tx_bdr / pf->caps.num_vsi; > + > + for (i = 0; i < pf->caps.num_vsi; i++) { > + vf_tx_bdr = (i < tx_rem) ? num_tx_bdr + 1 : num_tx_bdr; > + vf_rx_bdr = (i < rx_rem) ? num_rx_bdr + 1 : num_rx_bdr; > + val = enetc4_psicfgr0_val_construct(true, vf_tx_bdr, vf_rx_bdr); > + enetc_port_wr(hw, ENETC4_PSICFGR0(i + 1), val); > + } > +} > + > +static void enetc4_allocate_si_rings(struct enetc_pf *pf) > +{ > + enetc4_default_rings_allocation(pf); > +} > + > +static void enetc4_pf_set_si_vlan_promisc(struct enetc_hw *hw, int si, bool en) > +{ > + u32 val = enetc_port_rd(hw, ENETC4_PSIPVMR); > + > + if (en) > + val |= BIT(si); > + else > + val &= ~BIT(si); > + > + enetc_port_wr(hw, ENETC4_PSIPVMR, val); > +} > + > +static void enetc4_set_default_si_vlan_promisc(struct enetc_pf *pf) > +{ > + struct enetc_hw *hw = &pf->si->hw; > + int num_si = pf->caps.num_vsi + 1; > + int i; > + > + /* enforce VLAN promisc mode for all SIs */ > + for (i = 0; i < num_si; i++) > + enetc4_pf_set_si_vlan_promisc(hw, i, true); > +} > + > +/* Allocate the number of MSI-X vectors for per SI. */ > +static void enetc4_set_si_msix_num(struct enetc_pf *pf) > +{ > + struct enetc_hw *hw = &pf->si->hw; > + int i, num_msix, total_si; > + u32 val; > + > + total_si = pf->caps.num_vsi + 1; > + > + num_msix = pf->caps.num_msix / total_si + > + pf->caps.num_msix % total_si - 1; > + val = num_msix & 0x3f; > + enetc_port_wr(hw, ENETC4_PSICFGR2(0), val); > + > + num_msix = pf->caps.num_msix / total_si - 1; > + val = num_msix & 0x3f; > + for (i = 0; i < pf->caps.num_vsi; i++) > + enetc_port_wr(hw, ENETC4_PSICFGR2(i + 1), val); > +} > + > +static void enetc4_enable_all_si(struct enetc_pf *pf) > +{ > + struct enetc_hw *hw = &pf->si->hw; > + int num_si = pf->caps.num_vsi + 1; > + u32 si_bitmap = 0; > + int i; > + > + /* Master enable for all SIs */ > + for (i = 0; i < num_si; i++) > + si_bitmap |= PMR_SI_EN(i); > + > + enetc_port_wr(hw, ENETC4_PMR, si_bitmap); > +} > + > +static void enetc4_configure_port_si(struct enetc_pf *pf) > +{ > + struct enetc_hw *hw = &pf->si->hw; > + > + enetc4_allocate_si_rings(pf); > + > + /* Outer VLAN tag will be used for VLAN filtering */ > + enetc_port_wr(hw, ENETC4_PSIVLANFMR, PSIVLANFMR_VS); > + > + enetc4_set_default_si_vlan_promisc(pf); > + > + /* Disable SI MAC multicast & unicast promiscuous */ > + enetc_port_wr(hw, ENETC4_PSIPMMR, 0); > + > + enetc4_set_si_msix_num(pf); > + > + enetc4_enable_all_si(pf); > +} > + > +static void enetc4_pf_reset_tc_msdu(struct enetc_hw *hw) > +{ > + u32 val = ENETC_MAC_MAXFRM_SIZE; > + int tc; > + > + val = u32_replace_bits(val, SDU_TYPE_MPDU, PTCTMSDUR_SDU_TYPE); > + > + for (tc = 0; tc < 8; tc++) > + enetc_port_wr(hw, ENETC4_PTCTMSDUR(tc), val); > +} > + > +static void enetc4_set_trx_frame_size(struct enetc_pf *pf) > +{ > + struct enetc_si *si = pf->si; > + > + enetc_port_mac_wr(si, ENETC4_PM_MAXFRM(0), > + ENETC_SET_MAXFRM(ENETC_MAC_MAXFRM_SIZE)); > + > + enetc4_pf_reset_tc_msdu(&si->hw); > +} > + > +static void enetc4_set_rss_key(struct enetc_hw *hw, const u8 *bytes) > +{ > + int i; > + > + for (i = 0; i < ENETC_RSSHASH_KEY_SIZE / 4; i++) > + enetc_port_wr(hw, ENETC4_PRSSKR(i), ((u32 *)bytes)[i]); > +} > + > +static void enetc4_set_default_rss_key(struct enetc_pf *pf) > +{ > + u8 hash_key[ENETC_RSSHASH_KEY_SIZE] = {0}; > + struct enetc_hw *hw = &pf->si->hw; > + > + /* set up hash key */ > + get_random_bytes(hash_key, ENETC_RSSHASH_KEY_SIZE); > + enetc4_set_rss_key(hw, hash_key); > +} > + > +static void enetc4_enable_trx(struct enetc_pf *pf) > +{ > + struct enetc_hw *hw = &pf->si->hw; > + > + /* Enable port transmit/receive */ > + enetc_port_wr(hw, ENETC4_POR, 0); > +} > + > +static void enetc4_configure_port(struct enetc_pf *pf) > +{ > + enetc4_configure_port_si(pf); > + enetc4_set_trx_frame_size(pf); > + enetc4_set_default_rss_key(pf); > + enetc4_enable_trx(pf); > +} > + > +static int enetc4_pf_init(struct enetc_pf *pf) > +{ > + struct device *dev = &pf->si->pdev->dev; > + int err; > + > + /* Initialize the MAC address for PF and VFs */ > + err = enetc_setup_mac_addresses(dev->of_node, pf); > + if (err) { > + dev_err(dev, "Failed to set MAC addresses\n"); > + return err; > + } > + > + enetc4_configure_port(pf); > + > + return 0; > +} > + > +static const struct net_device_ops enetc4_ndev_ops = { > + .ndo_open = enetc_open, > + .ndo_stop = enetc_close, > + .ndo_start_xmit = enetc_xmit, > + .ndo_get_stats = enetc_get_stats, > + .ndo_set_mac_address = enetc_pf_set_mac_addr, > +}; > + > +static struct phylink_pcs * > +enetc4_pl_mac_select_pcs(struct phylink_config *config, phy_interface_t iface) > +{ > + struct enetc_pf *pf = phylink_to_enetc_pf(config); > + > + return pf->pcs; > +} > + > +static void enetc4_mac_config(struct enetc_pf *pf, unsigned int mode, > + phy_interface_t phy_mode) > +{ > + struct enetc_ndev_priv *priv = netdev_priv(pf->si->ndev); > + struct enetc_si *si = pf->si; > + u32 val; > + > + val = enetc_port_mac_rd(si, ENETC4_PM_IF_MODE(0)); > + val &= ~(PM_IF_MODE_IFMODE | PM_IF_MODE_ENA); > + > + switch (phy_mode) { > + case PHY_INTERFACE_MODE_RGMII: > + case PHY_INTERFACE_MODE_RGMII_ID: > + case PHY_INTERFACE_MODE_RGMII_RXID: > + case PHY_INTERFACE_MODE_RGMII_TXID: > + val |= IFMODE_RGMII; > + /* We need to enable auto-negotiation for the MAC > + * if its RGMII interface support In-Band status. > + */ > + if (phylink_autoneg_inband(mode)) > + val |= PM_IF_MODE_ENA; > + break; > + case PHY_INTERFACE_MODE_RMII: > + val |= IFMODE_RMII; > + break; > + case PHY_INTERFACE_MODE_SGMII: > + case PHY_INTERFACE_MODE_2500BASEX: > + val |= IFMODE_SGMII; > + break; > + case PHY_INTERFACE_MODE_10GBASER: > + case PHY_INTERFACE_MODE_XGMII: > + case PHY_INTERFACE_MODE_USXGMII: > + val |= IFMODE_XGMII; > + break; > + default: > + dev_err(priv->dev, > + "Unsupported PHY mode:%d\n", phy_mode); > + return; > + } > + > + enetc_port_mac_wr(si, ENETC4_PM_IF_MODE(0), val); > +} > + > +static void enetc4_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); > + > + enetc4_mac_config(pf, mode, state->interface); > +} > + > +static void enetc4_set_port_speed(struct enetc_ndev_priv *priv, int speed) > +{ > + u32 old_speed = priv->speed; > + u32 val; > + > + if (speed == old_speed) > + return; > + > + val = enetc_port_rd(&priv->si->hw, ENETC4_PCR); > + val &= ~PCR_PSPEED; > + > + switch (speed) { > + case SPEED_100: > + case SPEED_1000: > + case SPEED_2500: > + case SPEED_10000: > + val |= (PCR_PSPEED & PCR_PSPEED_VAL(speed)); > + break; > + case SPEED_10: > + default: > + val |= (PCR_PSPEED & PCR_PSPEED_VAL(SPEED_10)); > + } > + > + priv->speed = speed; > + enetc_port_wr(&priv->si->hw, ENETC4_PCR, val); > +} > + > +static void enetc4_set_rgmii_mac(struct enetc_pf *pf, int speed, int duplex) > +{ > + struct enetc_si *si = pf->si; > + u32 old_val, val; > + > + old_val = enetc_port_mac_rd(si, ENETC4_PM_IF_MODE(0)); > + val = old_val & ~(PM_IF_MODE_ENA | PM_IF_MODE_M10 | PM_IF_MODE_REVMII); > + > + switch (speed) { > + case SPEED_1000: > + val = u32_replace_bits(val, SSP_1G, PM_IF_MODE_SSP); > + break; > + case SPEED_100: > + val = u32_replace_bits(val, SSP_100M, PM_IF_MODE_SSP); > + break; > + case SPEED_10: > + val = u32_replace_bits(val, SSP_10M, PM_IF_MODE_SSP); > + } > + > + val = u32_replace_bits(val, duplex == DUPLEX_FULL ? 0 : 1, > + PM_IF_MODE_HD); > + > + if (val == old_val) > + return; > + > + enetc_port_mac_wr(si, ENETC4_PM_IF_MODE(0), val); > +} > + > +static void enetc4_set_rmii_mac(struct enetc_pf *pf, int speed, int duplex) > +{ > + struct enetc_si *si = pf->si; > + u32 old_val, val; > + > + old_val = enetc_port_mac_rd(si, ENETC4_PM_IF_MODE(0)); > + val = old_val & ~(PM_IF_MODE_ENA | PM_IF_MODE_SSP); > + > + switch (speed) { > + case SPEED_100: > + val &= ~PM_IF_MODE_M10; > + break; > + case SPEED_10: > + val |= PM_IF_MODE_M10; > + } > + > + val = u32_replace_bits(val, duplex == DUPLEX_FULL ? 0 : 1, > + PM_IF_MODE_HD); > + > + if (val == old_val) > + return; > + > + enetc_port_mac_wr(si, ENETC4_PM_IF_MODE(0), val); > +} > + > +static void enetc4_set_hd_flow_control(struct enetc_pf *pf, bool enable) > +{ > + struct enetc_si *si = pf->si; > + u32 old_val, val; > + > + if (!pf->caps.half_duplex) > + return; > + > + old_val = enetc_port_mac_rd(si, ENETC4_PM_CMD_CFG(0)); > + val = u32_replace_bits(old_val, enable ? 1 : 0, PM_CMD_CFG_HD_FCEN); > + if (val == old_val) > + return; > + > + enetc_port_mac_wr(si, ENETC4_PM_CMD_CFG(0), val); > +} > + > +static void enetc4_set_rx_pause(struct enetc_pf *pf, bool rx_pause) > +{ > + struct enetc_si *si = pf->si; > + u32 old_val, val; > + > + old_val = enetc_port_mac_rd(si, ENETC4_PM_CMD_CFG(0)); > + val = u32_replace_bits(old_val, rx_pause ? 0 : 1, PM_CMD_CFG_PAUSE_IGN); > + if (val == old_val) > + return; > + > + enetc_port_mac_wr(si, ENETC4_PM_CMD_CFG(0), val); > +} > + > +static void enetc4_set_tx_pause(struct enetc_pf *pf, int num_rxbdr, bool tx_pause) > +{ > + u32 pause_off_thresh = 0, pause_on_thresh = 0; > + u32 init_quanta = 0, refresh_quanta = 0; > + struct enetc_hw *hw = &pf->si->hw; > + u32 rbmr, old_rbmr; > + int i; > + > + for (i = 0; i < num_rxbdr; i++) { > + old_rbmr = enetc_rxbdr_rd(hw, i, ENETC_RBMR); > + rbmr = u32_replace_bits(old_rbmr, tx_pause ? 1 : 0, ENETC_RBMR_CM); > + if (rbmr == old_rbmr) > + continue; > + > + enetc_rxbdr_wr(hw, i, 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; > + } > + > + enetc_port_mac_wr(pf->si, ENETC4_PM_PAUSE_QUANTA(0), init_quanta); > + enetc_port_mac_wr(pf->si, ENETC4_PM_PAUSE_THRESH(0), refresh_quanta); > + enetc_port_wr(hw, ENETC4_PPAUONTR, pause_on_thresh); > + enetc_port_wr(hw, ENETC4_PPAUOFFTR, pause_off_thresh); > +} > + > +static void enetc4_enable_mac(struct enetc_pf *pf, bool en) > +{ > + struct enetc_si *si = pf->si; > + u32 val; > + > + val = enetc_port_mac_rd(si, ENETC4_PM_CMD_CFG(0)); > + val &= ~(PM_CMD_CFG_TX_EN | PM_CMD_CFG_RX_EN); > + val |= en ? (PM_CMD_CFG_TX_EN | PM_CMD_CFG_RX_EN) : 0; > + > + enetc_port_mac_wr(si, ENETC4_PM_CMD_CFG(0), val); > +} > + > +static void enetc4_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); > + struct enetc_si *si = pf->si; > + struct enetc_ndev_priv *priv; > + bool hd_fc = false; > + > + priv = netdev_priv(si->ndev); > + enetc4_set_port_speed(priv, speed); > + > + if (!phylink_autoneg_inband(mode) && > + phy_interface_mode_is_rgmii(interface)) > + enetc4_set_rgmii_mac(pf, speed, duplex); > + > + if (interface == PHY_INTERFACE_MODE_RMII) > + enetc4_set_rmii_mac(pf, speed, duplex); > + > + if (duplex == DUPLEX_FULL) { > + /* When preemption is enabled, generation of PAUSE frames > + * must be disabled, as stated in the IEEE 802.3 standard. > + */ > + if (priv->active_offloads & ENETC_F_QBU) > + tx_pause = false; > + } else { /* DUPLEX_HALF */ > + if (tx_pause || rx_pause) > + hd_fc = true; > + > + /* As per 802.3 annex 31B, PAUSE frames are only supported > + * when the link is configured for full duplex operation. > + */ > + tx_pause = false; > + rx_pause = false; > + } > + > + enetc4_set_hd_flow_control(pf, hd_fc); > + enetc4_set_tx_pause(pf, priv->num_rx_rings, tx_pause); > + enetc4_set_rx_pause(pf, rx_pause); > + enetc4_enable_mac(pf, true); > +} > + > +static void enetc4_pl_mac_link_down(struct phylink_config *config, > + unsigned int mode, > + phy_interface_t interface) > +{ > + struct enetc_pf *pf = phylink_to_enetc_pf(config); > + > + enetc4_enable_mac(pf, false); > +} > + > +static const struct phylink_mac_ops enetc_pl_mac_ops = { > + .mac_select_pcs = enetc4_pl_mac_select_pcs, > + .mac_config = enetc4_pl_mac_config, > + .mac_link_up = enetc4_pl_mac_link_up, > + .mac_link_down = enetc4_pl_mac_link_down, > +}; > + > +static int enetc4_link_init(struct enetc_ndev_priv *priv, > + struct device_node *node) > +{ > + struct enetc_pf *pf = enetc_si_priv(priv->si); > + struct device *dev = priv->dev; > + int err; > + > + err = of_get_phy_mode(node, &pf->if_mode); > + if (err) { > + dev_err(dev, "Failed to get PHY mode\n"); > + return err; > + } > + > + err = enetc_mdiobus_create(pf, node); > + if (err) { > + dev_err(dev, "Failed to create MDIO bus\n"); > + return err; > + } > + > + err = enetc_phylink_create(priv, node, &enetc_pl_mac_ops); > + if (err) { > + dev_err(dev, "Failed to create phylink\n"); > + goto err_phylink_create; > + } > + > + return 0; > + > +err_phylink_create: > + enetc_mdiobus_destroy(pf); > + > + return err; > +} > + > +static void enetc4_link_deinit(struct enetc_ndev_priv *priv) > +{ > + struct enetc_pf *pf = enetc_si_priv(priv->si); > + > + enetc_phylink_destroy(priv); > + enetc_mdiobus_destroy(pf); > +} > + > +static int enetc4_pf_netdev_create(struct enetc_si *si) > +{ > + struct device *dev = &si->pdev->dev; > + struct enetc_ndev_priv *priv; > + struct net_device *ndev; > + int err; > + > + ndev = alloc_etherdev_mqs(sizeof(struct enetc_ndev_priv), > + si->num_tx_rings, si->num_rx_rings); > + if (!ndev) > + return -ENOMEM; > + > + priv = netdev_priv(ndev); > + priv->ref_clk = devm_clk_get_optional(dev, "enet_ref_clk"); > + if (IS_ERR(priv->ref_clk)) { > + dev_err(dev, "Get enet_ref_clk failed\n"); > + err = PTR_ERR(priv->ref_clk); > + goto err_clk_get; > + } > + > + enetc_pf_netdev_setup(si, ndev, &enetc4_ndev_ops); > + > + enetc_init_si_rings_params(priv); > + > + err = enetc_configure_si(priv); > + if (err) { > + dev_err(dev, "Failed to configure SI\n"); > + goto err_config_si; > + } > + > + err = enetc_alloc_msix(priv); > + if (err) { > + dev_err(dev, "Failed to alloc MSI-X\n"); > + goto err_alloc_msix; > + } > + > + err = enetc4_link_init(priv, dev->of_node); > + if (err) > + goto err_link_init; > + > + err = register_netdev(ndev); > + if (err) { > + dev_err(dev, "Failed to register netdev\n"); > + goto err_reg_netdev; > + } > + > + return 0; > + > +err_reg_netdev: > + enetc4_link_deinit(priv); > +err_link_init: > + enetc_free_msix(priv); > +err_alloc_msix: > +err_config_si: > +err_clk_get: > + mutex_destroy(&priv->mm_lock); > + free_netdev(ndev); > + > + return err; > +} > + > +static void enetc4_pf_netdev_destroy(struct enetc_si *si) > +{ > + struct net_device *ndev = si->ndev; > + struct enetc_ndev_priv *priv; > + > + priv = netdev_priv(ndev); > + unregister_netdev(ndev); > + enetc_free_msix(priv); > + free_netdev(ndev); > +} > + > +static int enetc4_pf_probe(struct pci_dev *pdev, > + const struct pci_device_id *ent) > +{ > + struct device *dev = &pdev->dev; > + struct enetc_si *si; > + struct enetc_pf *pf; > + int err; > + > + err = enetc_pci_probe(pdev, KBUILD_MODNAME, sizeof(*pf)); > + if (err) { > + dev_err_probe(dev, err, "PCIe probing failed\n"); > + return err; > + } return dev_err_probe(dev, err, "PCIe probing failed\n"); > + > + /* si is the private data. */ > + si = pci_get_drvdata(pdev); > + if (!si->hw.port || !si->hw.global) { > + err = -ENODEV; > + dev_err_probe(dev, err, "Couldn't map PF only space\n"); > + goto err_enetc_pci_probe; > + } > + > + err = enetc4_pf_struct_init(si); > + if (err) > + goto err_pf_struct_init; > + > + pf = enetc_si_priv(si); > + err = enetc4_pf_init(pf); > + if (err) > + goto err_pf_init; > + > + pinctrl_pm_select_default_state(dev); > + enetc_get_si_caps(si); > + err = enetc4_pf_netdev_create(si); > + if (err) > + goto err_netdev_create; > + > + return 0; > + > +err_netdev_create: > +err_pf_init: > +err_pf_struct_init: > +err_enetc_pci_probe: > + enetc_pci_remove(pdev); still suggest use devm_add_action_or_reset() to simplify error handle. > + > + return err; > +} > + > +static void enetc4_pf_remove(struct pci_dev *pdev) > +{ > + struct enetc_si *si = pci_get_drvdata(pdev); > + > + enetc4_pf_netdev_destroy(si); > + enetc_pci_remove(pdev); > +} > + > +static const struct pci_device_id enetc4_pf_id_table[] = { > + { PCI_DEVICE(PCI_VENDOR_ID_NXP2, PCI_DEVICE_ID_NXP2_ENETC_PF) }, > + { 0, } /* End of table. */ > +}; > +MODULE_DEVICE_TABLE(pci, enetc4_pf_id_table); > + > +static struct pci_driver enetc4_pf_driver = { > + .name = KBUILD_MODNAME, > + .id_table = enetc4_pf_id_table, > + .probe = enetc4_pf_probe, > + .remove = enetc4_pf_remove, > +}; > +module_pci_driver(enetc4_pf_driver); > + > +MODULE_DESCRIPTION("ENETC4 PF Driver"); > +MODULE_LICENSE("Dual BSD/GPL"); > diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c > index 2563eb8ac7b6..13ce771e0c43 100644 > --- a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c > +++ b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c > @@ -44,6 +44,9 @@ static int enetc_get_reglen(struct net_device *ndev) > struct enetc_hw *hw = &priv->si->hw; > int len; > > + if (is_enetc_rev4(priv->si)) > + return -EOPNOTSUPP; > + > len = ARRAY_SIZE(enetc_si_regs); > len += ARRAY_SIZE(enetc_txbdr_regs) * priv->num_tx_rings; > len += ARRAY_SIZE(enetc_rxbdr_regs) * priv->num_rx_rings; > @@ -68,6 +71,9 @@ static void enetc_get_regs(struct net_device *ndev, struct ethtool_regs *regs, > int i, j; > u32 addr; > > + if (is_enetc_rev4(priv->si)) > + return; > + > for (i = 0; i < ARRAY_SIZE(enetc_si_regs); i++) { > *buf++ = enetc_si_regs[i]; > *buf++ = enetc_rd(hw, enetc_si_regs[i]); > @@ -229,6 +235,9 @@ static int enetc_get_sset_count(struct net_device *ndev, int sset) > struct enetc_ndev_priv *priv = netdev_priv(ndev); > int len; > > + if (is_enetc_rev4(priv->si)) > + return -EOPNOTSUPP; > + > if (sset != ETH_SS_STATS) > return -EOPNOTSUPP; > > @@ -250,6 +259,9 @@ static void enetc_get_strings(struct net_device *ndev, u32 stringset, u8 *data) > u8 *p = data; > int i, j; > > + if (is_enetc_rev4(priv->si)) > + return; > + > switch (stringset) { > case ETH_SS_STATS: > for (i = 0; i < ARRAY_SIZE(enetc_si_counters); i++) { > @@ -290,6 +302,9 @@ static void enetc_get_ethtool_stats(struct net_device *ndev, > struct enetc_hw *hw = &priv->si->hw; > int i, o = 0; > > + if (is_enetc_rev4(priv->si)) > + return; > + > for (i = 0; i < ARRAY_SIZE(enetc_si_counters); i++) > data[o++] = enetc_rd64(hw, enetc_si_counters[i].reg); > > @@ -331,6 +346,9 @@ static void enetc_get_pause_stats(struct net_device *ndev, > struct enetc_hw *hw = &priv->si->hw; > struct enetc_si *si = priv->si; > > + if (is_enetc_rev4(si)) > + return; > + > switch (pause_stats->src) { > case ETHTOOL_MAC_STATS_SRC_EMAC: > enetc_pause_stats(hw, 0, pause_stats); > @@ -418,6 +436,9 @@ static void enetc_get_eth_mac_stats(struct net_device *ndev, > struct enetc_hw *hw = &priv->si->hw; > struct enetc_si *si = priv->si; > > + if (is_enetc_rev4(si)) > + return; > + > switch (mac_stats->src) { > case ETHTOOL_MAC_STATS_SRC_EMAC: > enetc_mac_stats(hw, 0, mac_stats); > @@ -439,6 +460,9 @@ static void enetc_get_eth_ctrl_stats(struct net_device *ndev, > struct enetc_hw *hw = &priv->si->hw; > struct enetc_si *si = priv->si; > > + if (is_enetc_rev4(si)) > + return; > + > switch (ctrl_stats->src) { > case ETHTOOL_MAC_STATS_SRC_EMAC: > enetc_ctrl_stats(hw, 0, ctrl_stats); > @@ -461,6 +485,9 @@ static void enetc_get_rmon_stats(struct net_device *ndev, > struct enetc_hw *hw = &priv->si->hw; > struct enetc_si *si = priv->si; > > + if (is_enetc_rev4(si)) > + return; > + > *ranges = enetc_rmon_ranges; > > switch (rmon_stats->src) { > @@ -593,6 +620,9 @@ static int enetc_get_rxnfc(struct net_device *ndev, struct ethtool_rxnfc *rxnfc, > struct enetc_ndev_priv *priv = netdev_priv(ndev); > int i, j; > > + if (is_enetc_rev4(priv->si)) > + return -EOPNOTSUPP; > + > switch (rxnfc->cmd) { > case ETHTOOL_GRXRINGS: > rxnfc->data = priv->num_rx_rings; > @@ -643,6 +673,9 @@ static int enetc_set_rxnfc(struct net_device *ndev, struct ethtool_rxnfc *rxnfc) > struct enetc_ndev_priv *priv = netdev_priv(ndev); > int err; > > + if (is_enetc_rev4(priv->si)) > + return -EOPNOTSUPP; > + > switch (rxnfc->cmd) { > case ETHTOOL_SRXCLSRLINS: > if (rxnfc->fs.location >= priv->si->num_fs_entries) > @@ -678,6 +711,9 @@ static u32 enetc_get_rxfh_key_size(struct net_device *ndev) > { > struct enetc_ndev_priv *priv = netdev_priv(ndev); > > + if (is_enetc_rev4(priv->si)) > + return 0; > + > /* return the size of the RX flow hash key. PF only */ > return (priv->si->hw.port) ? ENETC_RSSHASH_KEY_SIZE : 0; > } > @@ -686,6 +722,9 @@ static u32 enetc_get_rxfh_indir_size(struct net_device *ndev) > { > struct enetc_ndev_priv *priv = netdev_priv(ndev); > > + if (is_enetc_rev4(priv->si)) > + return 0; > + > /* return the size of the RX flow hash indirection table */ > return priv->si->num_rss; > } > @@ -697,6 +736,9 @@ static int enetc_get_rxfh(struct net_device *ndev, > struct enetc_hw *hw = &priv->si->hw; > int err = 0, i; > > + if (is_enetc_rev4(priv->si)) > + return -EOPNOTSUPP; > + > /* return hash function */ > rxfh->hfunc = ETH_RSS_HASH_TOP; > > @@ -731,6 +773,9 @@ static int enetc_set_rxfh(struct net_device *ndev, > struct enetc_hw *hw = &priv->si->hw; > int err = 0; > > + if (is_enetc_rev4(priv->si)) > + return -EOPNOTSUPP; > + > /* set hash key, if PF */ > if (rxfh->key && hw->port) > enetc_set_rss_key(hw, rxfh->key); > @@ -775,9 +820,10 @@ static int enetc_get_coalesce(struct net_device *ndev, > { > struct enetc_ndev_priv *priv = netdev_priv(ndev); > struct enetc_int_vector *v = priv->int_vector[0]; > + u64 clk_freq = priv->si->clk_freq; > > - ic->tx_coalesce_usecs = enetc_cycles_to_usecs(priv->tx_ictt); > - ic->rx_coalesce_usecs = enetc_cycles_to_usecs(v->rx_ictt); > + ic->tx_coalesce_usecs = enetc_cycles_to_usecs(priv->tx_ictt, clk_freq); > + ic->rx_coalesce_usecs = enetc_cycles_to_usecs(v->rx_ictt, clk_freq); > > ic->tx_max_coalesced_frames = ENETC_TXIC_PKTTHR; > ic->rx_max_coalesced_frames = ENETC_RXIC_PKTTHR; > @@ -793,12 +839,13 @@ static int enetc_set_coalesce(struct net_device *ndev, > struct netlink_ext_ack *extack) > { > struct enetc_ndev_priv *priv = netdev_priv(ndev); > + u64 clk_freq = priv->si->clk_freq; > u32 rx_ictt, tx_ictt; > int i, ic_mode; > bool changed; > > - tx_ictt = enetc_usecs_to_cycles(ic->tx_coalesce_usecs); > - rx_ictt = enetc_usecs_to_cycles(ic->rx_coalesce_usecs); > + tx_ictt = enetc_usecs_to_cycles(ic->tx_coalesce_usecs, clk_freq); > + rx_ictt = enetc_usecs_to_cycles(ic->rx_coalesce_usecs, clk_freq); > > if (ic->rx_max_coalesced_frames != ENETC_RXIC_PKTTHR) > return -EOPNOTSUPP; > @@ -843,8 +890,12 @@ static int enetc_set_coalesce(struct net_device *ndev, > static int enetc_get_ts_info(struct net_device *ndev, > struct kernel_ethtool_ts_info *info) > { > + struct enetc_ndev_priv *priv = netdev_priv(ndev); > int *phc_idx; > > + if (is_enetc_rev4(priv->si)) > + return -EOPNOTSUPP; > + > phc_idx = symbol_get(enetc_phc_index); > if (phc_idx) { > info->phc_index = *phc_idx; > @@ -942,6 +993,9 @@ static void enetc_get_mm_stats(struct net_device *ndev, > struct enetc_hw *hw = &priv->si->hw; > struct enetc_si *si = priv->si; > > + if (is_enetc_rev4(si)) > + return; > + > if (!(si->hw_features & ENETC_SI_F_QBU)) > return; > > @@ -960,6 +1014,9 @@ static int enetc_get_mm(struct net_device *ndev, struct ethtool_mm_state *state) > struct enetc_hw *hw = &si->hw; > u32 lafs, rafs, val; > > + if (is_enetc_rev4(si)) > + return -EOPNOTSUPP; > + > if (!(si->hw_features & ENETC_SI_F_QBU)) > return -EOPNOTSUPP; > > @@ -1090,6 +1147,9 @@ static int enetc_set_mm(struct net_device *ndev, struct ethtool_mm_cfg *cfg, > u32 val, add_frag_size; > int err; > > + if (is_enetc_rev4(si)) > + return -EOPNOTSUPP; > + > if (!(si->hw_features & ENETC_SI_F_QBU)) > return -EOPNOTSUPP; > > diff --git a/drivers/net/ethernet/freescale/enetc/enetc_hw.h b/drivers/net/ethernet/freescale/enetc/enetc_hw.h > index 6a7b9b75d660..230e94986091 100644 > --- a/drivers/net/ethernet/freescale/enetc/enetc_hw.h > +++ b/drivers/net/ethernet/freescale/enetc/enetc_hw.h > @@ -25,6 +25,7 @@ > #define ENETC_SIPCAPR0_RSS BIT(8) > #define ENETC_SIPCAPR0_QBV BIT(4) > #define ENETC_SIPCAPR0_QBU BIT(3) > +#define ENETC_SIPCAPR0_RFS BIT(2) > #define ENETC_SIPCAPR1 0x24 > #define ENETC_SITGTGR 0x30 > #define ENETC_SIRBGCR 0x38 > @@ -971,15 +972,16 @@ struct enetc_cbd { > u8 status_flags; > }; > > -#define ENETC_CLK 400000000ULL > -static inline u32 enetc_cycles_to_usecs(u32 cycles) > +#define ENETC_CLK 400000000ULL > +#define ENETC_CLK_333M 333000000ULL > +static inline u32 enetc_cycles_to_usecs(u32 cycles, u64 clk_freq) > { > - return (u32)div_u64(cycles * 1000000ULL, ENETC_CLK); > + return (u32)div_u64(cycles * 1000000ULL, clk_freq); > } > > -static inline u32 enetc_usecs_to_cycles(u32 usecs) > +static inline u32 enetc_usecs_to_cycles(u32 usecs, u64 clk_freq) > { > - return (u32)div_u64(usecs * ENETC_CLK, 1000000ULL); > + return (u32)div_u64(usecs * clk_freq, 1000000ULL); > } > > /* Port traffic class frame preemption register */ > diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.h b/drivers/net/ethernet/freescale/enetc/enetc_pf.h > index 39db9d5c2e50..5ed97137e5c5 100644 > --- a/drivers/net/ethernet/freescale/enetc/enetc_pf.h > +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.h > @@ -28,6 +28,14 @@ struct enetc_vf_state { > enum enetc_vf_flags flags; > }; > > +struct enetc_port_caps { > + u32 half_duplex:1; > + int num_vsi; > + int num_msix; > + int num_rx_bdr; > + int num_tx_bdr; > +}; > + > struct enetc_pf; > > struct enetc_pf_ops { > @@ -61,6 +69,7 @@ struct enetc_pf { > phy_interface_t if_mode; > struct phylink_config phylink_config; > > + struct enetc_port_caps caps; > const struct enetc_pf_ops *ops; > }; > > diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c b/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c > index 2c6ce887f583..18fe7861a6fe 100644 > --- a/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c > +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c > @@ -120,10 +120,17 @@ void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev, > ndev->vlan_features = NETIF_F_SG | NETIF_F_HW_CSUM | > NETIF_F_TSO | NETIF_F_TSO6; > > + ndev->priv_flags |= IFF_UNICAST_FLT; > + > + /* TODO: currently, i.MX95 ENETC driver does not support advanced features */ > + if (is_enetc_rev4(si)) { > + ndev->hw_features &= ~(NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_LOOPBACK); > + goto end; > + } > + > if (si->num_rss) > ndev->hw_features |= NETIF_F_RXHASH; > > - ndev->priv_flags |= IFF_UNICAST_FLT; > ndev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | > NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_RX_SG | > NETDEV_XDP_ACT_NDO_XMIT_SG; > @@ -135,6 +142,7 @@ void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev, > ndev->hw_features |= NETIF_F_HW_TC; > } > > +end: > /* pick up primary MAC address from SI */ > enetc_load_primary_mac_addr(&si->hw, ndev); > } > -- > 2.34.1 >
> -----Original Message----- > From: Frank Li <frank.li@nxp.com> > Sent: 2024年10月16日 2:38 > To: Wei Fang <wei.fang@nxp.com> > Cc: davem@davemloft.net; edumazet@google.com; kuba@kernel.org; > pabeni@redhat.com; robh@kernel.org; krzk+dt@kernel.org; > conor+dt@kernel.org; Vladimir Oltean <vladimir.oltean@nxp.com>; Claudiu > Manoil <claudiu.manoil@nxp.com>; Clark Wang <xiaoning.wang@nxp.com>; > christophe.leroy@csgroup.eu; linux@armlinux.org.uk; bhelgaas@google.com; > horms@kernel.org; imx@lists.linux.dev; netdev@vger.kernel.org; > devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; > linux-pci@vger.kernel.org > Subject: Re: [PATCH v2 net-next 12/13] net: enetc: add preliminary support for > i.MX95 ENETC PF > > On Tue, Oct 15, 2024 at 08:58:40PM +0800, Wei Fang wrote: > > The i.MX95 ENETC has been upgraded to revision 4.1, which is very > > different from the LS1028A ENETC (revision 1.0) except for the SI > > part. Therefore, the fsl-enetc driver is incompatible with i.MX95 > > ENETC PF. So add new nxp-enetc4 driver to support i.MX95 ENETC PF, and > > this driver will be used to support the ENETC PF with major revision 4 > > for other SoCs in the future. > > > > Currently, the nxp-enetc4 driver only supports basic transmission > > feature for i.MX95 ENETC PF, the more basic and advanced features will > > be added in the subsequent patches. > > Nit: wrap at 75 char. All lines are within 75 characters. I think you removed extra line breaks from the email. > > + if (is_enetc_rev1(si)) > > + si->clk_freq = ENETC_CLK; > > + else > > + si->clk_freq = ENETC_CLK_333M; > > + > > > As pervious suggested > if use pci drvdata, needn't this check branch > si->clk_freq = drvdata->clk_frq; > Subsequent ENETCs basically use the same device ID, so if we match drvdata by vendor ID and device ID, their drvdata are the same. However, their system clock frequencies are not exactly the same, some may be 400MHz, and some may be 333MHz. Of course, we can also match through compatible string, but VF node does not have a corresponding DTS node, so this is not suitable for VF. However, this function is shared by both PF and VF drivers. So I still think that different clock frequencies should be distinguished according to the IP revision. > > /* find out how many of various resources we have to work with */ > > val = enetc_rd(hw, ENETC_SICAPR0); > > si->num_rx_rings = (val >> 16) & 0xff; > > si->num_tx_rings = val & 0xff; > > > > @@ -2080,9 +2097,15 @@ void enetc_init_si_rings_params(struct > enetc_ndev_priv *priv) > > */ > > priv->num_rx_rings = min_t(int, cpus, si->num_rx_rings); > > priv->num_tx_rings = si->num_tx_rings; > > - priv->bdr_int_num = cpus; > > + if (is_enetc_rev1(si)) { > > + priv->bdr_int_num = cpus; > > + priv->tx_ictt = enetc_usecs_to_cycles(600, ENETC_CLK); > > + } else { > > + priv->bdr_int_num = priv->num_rx_rings; > > + priv->tx_ictt = enetc_usecs_to_cycles(500, ENETC_CLK_333M); > > + } > > + > > why need 500/600 for difference version? > Because the clock freq is different. > Maybe > priv->tx_ictt = enetc_usecs_to_cycles(500, si-> clk_freq); > Yes, I'll refine it, thanks > > priv->ic_mode = ENETC_IC_RX_ADAPTIVE | ENETC_IC_TX_MANUAL; > > - priv->tx_ictt = ENETC_TXIC_TIMETHR; > > } > > EXPORT_SYMBOL_GPL(enetc_init_si_rings_params); > > +static int enetc4_pf_probe(struct pci_dev *pdev, > > + const struct pci_device_id *ent) { > > + struct device *dev = &pdev->dev; > > + struct enetc_si *si; > > + struct enetc_pf *pf; > > + int err; > > + > > + err = enetc_pci_probe(pdev, KBUILD_MODNAME, sizeof(*pf)); > > + if (err) { > > + dev_err_probe(dev, err, "PCIe probing failed\n"); > > + return err; > > + } > > return dev_err_probe(dev, err, "PCIe probing failed\n"); > Okay, thanks. > > + > > + /* si is the private data. */ > > + si = pci_get_drvdata(pdev); > > + if (!si->hw.port || !si->hw.global) { > > + err = -ENODEV; > > + dev_err_probe(dev, err, "Couldn't map PF only space\n"); > > + goto err_enetc_pci_probe; > > + } > > + > > + err = enetc4_pf_struct_init(si); > > + if (err) > > + goto err_pf_struct_init; > > + > > + pf = enetc_si_priv(si); > > + err = enetc4_pf_init(pf); > > + if (err) > > + goto err_pf_init; > > + > > + pinctrl_pm_select_default_state(dev); > > + enetc_get_si_caps(si); > > + err = enetc4_pf_netdev_create(si); > > + if (err) > > + goto err_netdev_create; > > + > > + return 0; > > + > > +err_netdev_create: > > +err_pf_init: > > +err_pf_struct_init: > > +err_enetc_pci_probe: > > + enetc_pci_remove(pdev); > > still suggest use devm_add_action_or_reset() to simplify error handle. I'm not sure, but I will consider it. thanks. > > > + > > + return err; > > +}
diff --git a/drivers/net/ethernet/freescale/enetc/Kconfig b/drivers/net/ethernet/freescale/enetc/Kconfig index fdd3ecbd1dbf..750281e3d285 100644 --- a/drivers/net/ethernet/freescale/enetc/Kconfig +++ b/drivers/net/ethernet/freescale/enetc/Kconfig @@ -33,6 +33,23 @@ config FSL_ENETC If compiled as module (M), the module name is fsl-enetc. +config NXP_ENETC4 + tristate "ENETC4 PF driver" + depends on PCI_MSI + select MDIO_DEVRES + select FSL_ENETC_CORE + select FSL_ENETC_MDIO + select NXP_ENETC_PF_COMMON + select PHYLINK + select DIMLIB + help + This driver supports NXP ENETC devices with major revision 4. ENETC is + as the NIC functionality in NETC, it supports virtualization/isolation + based on PCIe Single Root IO Virtualization (SR-IOV) and a full range + of TSN standards and NIC offload capabilities. + + If compiled as module (M), the module name is nxp-enetc4. + config FSL_ENETC_VF tristate "ENETC VF driver" depends on PCI_MSI diff --git a/drivers/net/ethernet/freescale/enetc/Makefile b/drivers/net/ethernet/freescale/enetc/Makefile index b81ca462e358..5417815957b5 100644 --- a/drivers/net/ethernet/freescale/enetc/Makefile +++ b/drivers/net/ethernet/freescale/enetc/Makefile @@ -11,6 +11,9 @@ fsl-enetc-y := enetc_pf.o fsl-enetc-$(CONFIG_PCI_IOV) += enetc_msg.o fsl-enetc-$(CONFIG_FSL_ENETC_QOS) += enetc_qos.o +obj-$(CONFIG_NXP_ENETC4) += nxp-enetc4.o +nxp-enetc4-y := enetc4_pf.o + obj-$(CONFIG_FSL_ENETC_VF) += fsl-enetc-vf.o fsl-enetc-vf-y := enetc_vf.o diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c index 72ddf8b16271..fd7a9dae9e14 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.c +++ b/drivers/net/ethernet/freescale/enetc/enetc.c @@ -2,6 +2,7 @@ /* Copyright 2017-2019 NXP */ #include "enetc.h" +#include <linux/clk.h> #include <linux/bpf_trace.h> #include <linux/tcp.h> #include <linux/udp.h> @@ -21,7 +22,7 @@ void enetc_port_mac_wr(struct enetc_si *si, u32 reg, u32 val) { enetc_port_wr(&si->hw, reg, val); if (si->hw_features & ENETC_SI_F_QBU) - enetc_port_wr(&si->hw, reg + ENETC_PMAC_OFFSET, val); + enetc_port_wr(&si->hw, reg + si->pmac_offset, val); } EXPORT_SYMBOL_GPL(enetc_port_mac_wr); @@ -700,8 +701,10 @@ static void enetc_rx_dim_work(struct work_struct *w) net_dim_get_rx_moderation(dim->mode, dim->profile_ix); struct enetc_int_vector *v = container_of(dim, struct enetc_int_vector, rx_dim); + struct enetc_ndev_priv *priv = netdev_priv(v->rx_ring.ndev); + u64 clk_freq = priv->si->clk_freq; - v->rx_ictt = enetc_usecs_to_cycles(moder.usec); + v->rx_ictt = enetc_usecs_to_cycles(moder.usec, clk_freq); dim->state = DIM_START_MEASURE; } @@ -1721,14 +1724,25 @@ void enetc_get_si_caps(struct enetc_si *si) struct enetc_hw *hw = &si->hw; u32 val; + if (is_enetc_rev1(si)) + si->clk_freq = ENETC_CLK; + else + si->clk_freq = ENETC_CLK_333M; + /* find out how many of various resources we have to work with */ val = enetc_rd(hw, ENETC_SICAPR0); si->num_rx_rings = (val >> 16) & 0xff; si->num_tx_rings = val & 0xff; - val = enetc_rd(hw, ENETC_SIRFSCAPR); - si->num_fs_entries = ENETC_SIRFSCAPR_GET_NUM_RFS(val); - si->num_fs_entries = min(si->num_fs_entries, ENETC_MAX_RFS_SIZE); + val = enetc_rd(hw, ENETC_SIPCAPR0); + if (val & ENETC_SIPCAPR0_RFS) { + val = enetc_rd(hw, ENETC_SIRFSCAPR); + si->num_fs_entries = ENETC_SIRFSCAPR_GET_NUM_RFS(val); + si->num_fs_entries = min(si->num_fs_entries, ENETC_MAX_RFS_SIZE); + } else { + /* ENETC which not supports RFS */ + si->num_fs_entries = 0; + } si->num_rss = 0; val = enetc_rd(hw, ENETC_SIPCAPR0); @@ -1742,8 +1756,11 @@ void enetc_get_si_caps(struct enetc_si *si) if (val & ENETC_SIPCAPR0_QBV) si->hw_features |= ENETC_SI_F_QBV; - if (val & ENETC_SIPCAPR0_QBU) + if (val & ENETC_SIPCAPR0_QBU) { si->hw_features |= ENETC_SI_F_QBU; + si->pmac_offset = is_enetc_rev1(si) ? ENETC_PMAC_OFFSET : + ENETC4_PMAC_OFFSET; + } if (val & ENETC_SIPCAPR0_PSFP) si->hw_features |= ENETC_SI_F_PSFP; @@ -2056,7 +2073,7 @@ int enetc_configure_si(struct enetc_ndev_priv *priv) /* enable SI */ enetc_wr(hw, ENETC_SIMR, ENETC_SIMR_EN); - if (si->num_rss) { + if (si->num_rss && is_enetc_rev1(si)) { err = enetc_setup_default_rss_table(si, priv->num_rx_rings); if (err) return err; @@ -2080,9 +2097,15 @@ void enetc_init_si_rings_params(struct enetc_ndev_priv *priv) */ priv->num_rx_rings = min_t(int, cpus, si->num_rx_rings); priv->num_tx_rings = si->num_tx_rings; - priv->bdr_int_num = cpus; + if (is_enetc_rev1(si)) { + priv->bdr_int_num = cpus; + priv->tx_ictt = enetc_usecs_to_cycles(600, ENETC_CLK); + } else { + priv->bdr_int_num = priv->num_rx_rings; + priv->tx_ictt = enetc_usecs_to_cycles(500, ENETC_CLK_333M); + } + priv->ic_mode = ENETC_IC_RX_ADAPTIVE | ENETC_IC_TX_MANUAL; - priv->tx_ictt = ENETC_TXIC_TIMETHR; } EXPORT_SYMBOL_GPL(enetc_init_si_rings_params); @@ -2475,10 +2498,14 @@ int enetc_open(struct net_device *ndev) extended = !!(priv->active_offloads & ENETC_F_RX_TSTAMP); - err = enetc_setup_irqs(priv); + err = clk_prepare_enable(priv->ref_clk); if (err) return err; + err = enetc_setup_irqs(priv); + if (err) + goto err_setup_irqs; + err = enetc_phylink_connect(ndev); if (err) goto err_phy_connect; @@ -2510,6 +2537,8 @@ int enetc_open(struct net_device *ndev) phylink_disconnect_phy(priv->phylink); err_phy_connect: enetc_free_irqs(priv); +err_setup_irqs: + clk_disable_unprepare(priv->ref_clk); return err; } @@ -2559,6 +2588,7 @@ int enetc_close(struct net_device *ndev) enetc_assign_tx_resources(priv, NULL); enetc_free_irqs(priv); + clk_disable_unprepare(priv->ref_clk); return 0; } diff --git a/drivers/net/ethernet/freescale/enetc/enetc.h b/drivers/net/ethernet/freescale/enetc/enetc.h index 97524dfa234c..7f1ea11c33a0 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.h +++ b/drivers/net/ethernet/freescale/enetc/enetc.h @@ -14,6 +14,7 @@ #include <net/xdp.h> #include "enetc_hw.h" +#include "enetc4_hw.h" #define ENETC_MAC_MAXFRM_SIZE 9600 #define ENETC_MAX_MTU (ENETC_MAC_MAXFRM_SIZE - \ @@ -222,6 +223,7 @@ struct enetc_msg_swbd { }; #define ENETC_REV1 0x1 +#define ENETC_REV4 0x4 enum enetc_errata { ENETC_ERR_VLAN_ISOL = BIT(0), ENETC_ERR_UCMCSWP = BIT(1), @@ -247,10 +249,22 @@ struct enetc_si { int num_rss; /* number of RSS buckets */ unsigned short pad; int hw_features; + int pmac_offset; /* Only valid for PSI which supports 802.1Qbu */ + u64 clk_freq; }; #define ENETC_SI_ALIGN 32 +static inline bool is_enetc_rev1(struct enetc_si *si) +{ + return si->pdev->revision == ENETC_REV1; +} + +static inline bool is_enetc_rev4(struct enetc_si *si) +{ + return si->pdev->revision == ENETC_REV4; +} + static inline void *enetc_si_priv(const struct enetc_si *si) { return (char *)si + ALIGN(sizeof(struct enetc_si), ENETC_SI_ALIGN); @@ -302,7 +316,7 @@ struct enetc_cls_rule { int used; }; -#define ENETC_MAX_BDR_INT 2 /* fixed to max # of available cpus */ +#define ENETC_MAX_BDR_INT 6 /* fixed to max # of available cpus */ struct psfp_cap { u32 max_streamid; u32 max_psfp_filter; @@ -340,7 +354,6 @@ enum enetc_ic_mode { #define ENETC_RXIC_PKTTHR min_t(u32, 256, ENETC_RX_RING_DEFAULT_SIZE / 2) #define ENETC_TXIC_PKTTHR min_t(u32, 128, ENETC_TX_RING_DEFAULT_SIZE / 2) -#define ENETC_TXIC_TIMETHR enetc_usecs_to_cycles(600) struct enetc_ndev_priv { struct net_device *ndev; @@ -388,6 +401,8 @@ struct enetc_ndev_priv { * and link state updates */ struct mutex mm_lock; + + struct clk *ref_clk; /* RGMII/RMII reference clock */ }; /* Messaging */ diff --git a/drivers/net/ethernet/freescale/enetc/enetc4_hw.h b/drivers/net/ethernet/freescale/enetc/enetc4_hw.h new file mode 100644 index 000000000000..0b2a35189e9d --- /dev/null +++ b/drivers/net/ethernet/freescale/enetc/enetc4_hw.h @@ -0,0 +1,153 @@ +/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */ +/* + * This header file defines the register offsets and bit fields + * of ENETC4 PF and VFs. Note that the same registers as ENETC + * version 1.0 are defined in the enetc_hw.h file. + * + * Copyright 2024 NXP + */ +#ifndef __ENETC4_HW_H_ +#define __ENETC4_HW_H_ + +/***************************ENETC port registers**************************/ +#define ENETC4_ECAPR0 0x0 +#define ECAPR0_RFS BIT(2) +#define ECAPR0_TSD BIT(5) +#define ECAPR0_RSS BIT(8) +#define ECAPR0_RSC BIT(9) +#define ECAPR0_LSO BIT(10) +#define ECAPR0_WO BIT(13) + +#define ENETC4_ECAPR1 0x4 +#define ECAPR1_NUM_TCS GENMASK(6, 4) +#define ECAPR1_NUM_MCH GENMASK(9, 8) +#define ECAPR1_NUM_UCH GENMASK(11, 10) +#define ECAPR1_NUM_MSIX GENMASK(22, 12) +#define ECAPR1_NUM_VSI GENMASK(27, 24) +#define ECAPR1_NUM_IPV BIT(31) + +#define ENETC4_ECAPR2 0x8 +#define ECAPR2_NUM_TX_BDR GENMASK(9, 0) +#define ECAPR2_NUM_RX_BDR GENMASK(25, 16) + +#define ENETC4_PMR 0x10 +#define PMR_SI_EN(a) BIT((16 + (a))) + +/* Port Pause ON/OFF threshold register */ +#define ENETC4_PPAUONTR 0x108 +#define ENETC4_PPAUOFFTR 0x10c + +/* Port Station interface promiscuous MAC mode register */ +#define ENETC4_PSIPMMR 0x200 +#define PSIPMMR_SI0_MAC_UP BIT(0) +#define PSIPMMR_SI_MAC_UP GENMASK(2, 0) +#define PSIPMMR_SI0_MAC_MP BIT(16) +#define PSIPMMR_SI_MAC_MP GENMASK(18, 16) + +/* Port Station interface promiscuous VLAN mode register */ +#define ENETC4_PSIPVMR 0x204 + +/* Port RSS key register n. n = 0,1,2,...,9 */ +#define ENETC4_PRSSKR(n) ((n) * 0x4 + 0x250) + +/* Port station interface MAC address filtering capability register */ +#define ENETC4_PSIMAFCAPR 0x280 +#define PSIMAFCAPR_NUM_MAC_AFTE GENMASK(11, 0) + +/* Port station interface VLAN filtering capability register */ +#define ENETC4_PSIVLANFCAPR 0x2c0 +#define PSIVLANFCAPR_NUM_VLAN_FTE GENMASK(11, 0) + +/* Port station interface VLAN filtering mode register */ +#define ENETC4_PSIVLANFMR 0x2c4 +#define PSIVLANFMR_VS BIT(0) + +/* Port Station interface a primary MAC address registers */ +#define ENETC4_PSIPMAR0(a) ((a) * 0x80 + 0x2000) +#define ENETC4_PSIPMAR1(a) ((a) * 0x80 + 0x2004) + +/* Port station interface a configuration register 0/2 */ +#define ENETC4_PSICFGR0(a) ((a) * 0x80 + 0x2010) +#define PSICFGR0_VASE BIT(13) +#define PSICFGR0_ASE BIT(15) +#define PSICFGR0_ANTI_SPOOFING (PSICFGR0_VASE | PSICFGR0_ASE) + +#define ENETC4_PSICFGR2(a) ((a) * 0x80 + 0x2018) + +#define ENETC4_PMCAPR 0x4004 +#define PMCAPR_HD BIT(8) +#define PMCAPR_FP GENMASK(10, 9) + +/* Port configuration register */ +#define ENETC4_PCR 0x4010 +#define PCR_HDR_FMT BIT(0) +#define PCR_L2DOSE BIT(4) +#define PCR_TIMER_CS BIT(8) +#define PCR_PSPEED GENMASK(29, 16) +#define PCR_PSPEED_VAL(speed) (((speed) / 10 - 1) << 16) + +/* Port MAC address register 0/1 */ +#define ENETC4_PMAR0 0x4020 +#define ENETC4_PMAR1 0x4024 + +/* Port operational register */ +#define ENETC4_POR 0x4100 + +/* Port traffic class a transmit maximum SDU register */ +#define ENETC4_PTCTMSDUR(a) ((a) * 0x20 + 0x4208) +#define PTCTMSDUR_MAXSDU GENMASK(15, 0) +#define PTCTMSDUR_SDU_TYPE GENMASK(17, 16) +#define SDU_TYPE_PPDU 0 +#define SDU_TYPE_MPDU 1 +#define SDU_TYPE_MSDU 2 + +#define ENETC4_PMAC_OFFSET 0x400 +#define ENETC4_PM_CMD_CFG(mac) (0x5008 + (mac) * 0x400) +#define PM_CMD_CFG_TX_EN BIT(0) +#define PM_CMD_CFG_RX_EN BIT(1) +#define PM_CMD_CFG_PAUSE_FWD BIT(7) +#define PM_CMD_CFG_PAUSE_IGN BIT(8) +#define PM_CMD_CFG_TX_ADDR_INS BIT(9) +#define PM_CMD_CFG_LOOP_EN BIT(10) +#define PM_CMD_CFG_LPBK_MODE GENMASK(12, 11) +#define LPBCK_MODE_EXT_TX_CLK 0 +#define LPBCK_MODE_MAC_LEVEL 1 +#define LPBCK_MODE_INT_TX_CLK 2 +#define PM_CMD_CFG_CNT_FRM_EN BIT(13) +#define PM_CMD_CFG_TXP BIT(15) +#define PM_CMD_CFG_SEND_IDLE BIT(16) +#define PM_CMD_CFG_HD_FCEN BIT(18) +#define PM_CMD_CFG_SFD BIT(21) +#define PM_CMD_CFG_TX_FLUSH BIT(22) +#define PM_CMD_CFG_TX_LOWP_EN BIT(23) +#define PM_CMD_CFG_RX_LOWP_EMPTY BIT(24) +#define PM_CMD_CFG_SWR BIT(26) +#define PM_CMD_CFG_TS_MODE BIT(30) +#define PM_CMD_CFG_MG BIT(31) + +/* Port MAC 0/1 Maximum Frame Length Register */ +#define ENETC4_PM_MAXFRM(mac) (0x5014 + (mac) * 0x400) + +/* Port MAC 0/1 Pause Quanta Register */ +#define ENETC4_PM_PAUSE_QUANTA(mac) (0x5054 + (mac) * 0x400) + +/* Port MAC 0/1 Pause Quanta Threshold Register */ +#define ENETC4_PM_PAUSE_THRESH(mac) (0x5064 + (mac) * 0x400) + +/* Port MAC 0 Interface Mode Control Register */ +#define ENETC4_PM_IF_MODE(mac) (0x5300 + (mac) * 0x400) +#define PM_IF_MODE_IFMODE GENMASK(2, 0) +#define IFMODE_XGMII 0 +#define IFMODE_RMII 3 +#define IFMODE_RGMII 4 +#define IFMODE_SGMII 5 +#define PM_IF_MODE_REVMII BIT(3) +#define PM_IF_MODE_M10 BIT(4) +#define PM_IF_MODE_HD BIT(6) +#define PM_IF_MODE_SSP GENMASK(14, 13) +#define SSP_100M 0 +#define SSP_10M 1 +#define SSP_1G 2 +#define PM_IF_MODE_ENA BIT(15) + +#endif diff --git a/drivers/net/ethernet/freescale/enetc/enetc4_pf.c b/drivers/net/ethernet/freescale/enetc/enetc4_pf.c new file mode 100644 index 000000000000..cde529a19f13 --- /dev/null +++ b/drivers/net/ethernet/freescale/enetc/enetc4_pf.c @@ -0,0 +1,757 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) +/* Copyright 2024 NXP */ +#include <linux/clk.h> +#include <linux/fsl/netc_global.h> +#include <linux/module.h> +#include <linux/of_net.h> +#include <linux/of_platform.h> +#include <linux/pinctrl/consumer.h> +#include <linux/unaligned.h> + +#include "enetc_pf.h" + +#define ENETC_SI_MAX_RING_NUM 8 + +static void enetc4_get_port_caps(struct enetc_pf *pf) +{ + struct enetc_hw *hw = &pf->si->hw; + u32 val; + + val = enetc_port_rd(hw, ENETC4_ECAPR1); + pf->caps.num_vsi = (val & ECAPR1_NUM_VSI) >> 24; + pf->caps.num_msix = ((val & ECAPR1_NUM_MSIX) >> 12) + 1; + + val = enetc_port_rd(hw, ENETC4_ECAPR2); + pf->caps.num_rx_bdr = (val & ECAPR2_NUM_RX_BDR) >> 16; + pf->caps.num_tx_bdr = val & ECAPR2_NUM_TX_BDR; + + val = enetc_port_rd(hw, ENETC4_PMCAPR); + pf->caps.half_duplex = (val & PMCAPR_HD) ? 1 : 0; +} + +static void enetc4_pf_set_si_primary_mac(struct enetc_hw *hw, int si, + const u8 *addr) +{ + u16 lower = get_unaligned_le16(addr + 4); + u32 upper = get_unaligned_le32(addr); + + if (si != 0) { + __raw_writel(upper, hw->port + ENETC4_PSIPMAR0(si)); + __raw_writew(lower, hw->port + ENETC4_PSIPMAR1(si)); + } else { + __raw_writel(upper, hw->port + ENETC4_PMAR0); + __raw_writew(lower, hw->port + ENETC4_PMAR1); + } +} + +static void enetc4_pf_get_si_primary_mac(struct enetc_hw *hw, int si, + u8 *addr) +{ + u32 upper; + u16 lower; + + upper = __raw_readl(hw->port + ENETC4_PSIPMAR0(si)); + lower = __raw_readw(hw->port + ENETC4_PSIPMAR1(si)); + + put_unaligned_le32(upper, addr); + put_unaligned_le16(lower, addr + 4); +} + +static const struct enetc_pf_ops enetc4_pf_ops = { + .set_si_primary_mac = enetc4_pf_set_si_primary_mac, + .get_si_primary_mac = enetc4_pf_get_si_primary_mac, +}; + +static int enetc4_pf_struct_init(struct enetc_si *si) +{ + struct enetc_pf *pf = enetc_si_priv(si); + + pf->si = si; + pf->total_vfs = pci_sriov_get_totalvfs(si->pdev); + + enetc4_get_port_caps(pf); + enetc_pf_ops_register(pf, &enetc4_pf_ops); + + return 0; +} + +static u32 enetc4_psicfgr0_val_construct(bool is_vf, u32 num_tx_bdr, u32 num_rx_bdr) +{ + u32 val; + + val = ENETC_PSICFGR0_SET_TXBDR(num_tx_bdr); + val |= ENETC_PSICFGR0_SET_RXBDR(num_rx_bdr); + val |= ENETC_PSICFGR0_SIVC(ENETC_VLAN_TYPE_C | ENETC_VLAN_TYPE_S); + + if (is_vf) + val |= ENETC_PSICFGR0_VTE | ENETC_PSICFGR0_SIVIE; + + return val; +} + +static void enetc4_default_rings_allocation(struct enetc_pf *pf) +{ + struct enetc_hw *hw = &pf->si->hw; + u32 num_rx_bdr, num_tx_bdr, val; + u32 vf_tx_bdr, vf_rx_bdr; + int i, rx_rem, tx_rem; + + if (pf->caps.num_rx_bdr < ENETC_SI_MAX_RING_NUM + pf->caps.num_vsi) + num_rx_bdr = pf->caps.num_rx_bdr - pf->caps.num_vsi; + else + num_rx_bdr = ENETC_SI_MAX_RING_NUM; + + if (pf->caps.num_tx_bdr < ENETC_SI_MAX_RING_NUM + pf->caps.num_vsi) + num_tx_bdr = pf->caps.num_tx_bdr - pf->caps.num_vsi; + else + num_tx_bdr = ENETC_SI_MAX_RING_NUM; + + val = enetc4_psicfgr0_val_construct(false, num_tx_bdr, num_rx_bdr); + enetc_port_wr(hw, ENETC4_PSICFGR0(0), val); + + num_rx_bdr = pf->caps.num_rx_bdr - num_rx_bdr; + rx_rem = num_rx_bdr % pf->caps.num_vsi; + num_rx_bdr = num_rx_bdr / pf->caps.num_vsi; + + num_tx_bdr = pf->caps.num_tx_bdr - num_tx_bdr; + tx_rem = num_tx_bdr % pf->caps.num_vsi; + num_tx_bdr = num_tx_bdr / pf->caps.num_vsi; + + for (i = 0; i < pf->caps.num_vsi; i++) { + vf_tx_bdr = (i < tx_rem) ? num_tx_bdr + 1 : num_tx_bdr; + vf_rx_bdr = (i < rx_rem) ? num_rx_bdr + 1 : num_rx_bdr; + val = enetc4_psicfgr0_val_construct(true, vf_tx_bdr, vf_rx_bdr); + enetc_port_wr(hw, ENETC4_PSICFGR0(i + 1), val); + } +} + +static void enetc4_allocate_si_rings(struct enetc_pf *pf) +{ + enetc4_default_rings_allocation(pf); +} + +static void enetc4_pf_set_si_vlan_promisc(struct enetc_hw *hw, int si, bool en) +{ + u32 val = enetc_port_rd(hw, ENETC4_PSIPVMR); + + if (en) + val |= BIT(si); + else + val &= ~BIT(si); + + enetc_port_wr(hw, ENETC4_PSIPVMR, val); +} + +static void enetc4_set_default_si_vlan_promisc(struct enetc_pf *pf) +{ + struct enetc_hw *hw = &pf->si->hw; + int num_si = pf->caps.num_vsi + 1; + int i; + + /* enforce VLAN promisc mode for all SIs */ + for (i = 0; i < num_si; i++) + enetc4_pf_set_si_vlan_promisc(hw, i, true); +} + +/* Allocate the number of MSI-X vectors for per SI. */ +static void enetc4_set_si_msix_num(struct enetc_pf *pf) +{ + struct enetc_hw *hw = &pf->si->hw; + int i, num_msix, total_si; + u32 val; + + total_si = pf->caps.num_vsi + 1; + + num_msix = pf->caps.num_msix / total_si + + pf->caps.num_msix % total_si - 1; + val = num_msix & 0x3f; + enetc_port_wr(hw, ENETC4_PSICFGR2(0), val); + + num_msix = pf->caps.num_msix / total_si - 1; + val = num_msix & 0x3f; + for (i = 0; i < pf->caps.num_vsi; i++) + enetc_port_wr(hw, ENETC4_PSICFGR2(i + 1), val); +} + +static void enetc4_enable_all_si(struct enetc_pf *pf) +{ + struct enetc_hw *hw = &pf->si->hw; + int num_si = pf->caps.num_vsi + 1; + u32 si_bitmap = 0; + int i; + + /* Master enable for all SIs */ + for (i = 0; i < num_si; i++) + si_bitmap |= PMR_SI_EN(i); + + enetc_port_wr(hw, ENETC4_PMR, si_bitmap); +} + +static void enetc4_configure_port_si(struct enetc_pf *pf) +{ + struct enetc_hw *hw = &pf->si->hw; + + enetc4_allocate_si_rings(pf); + + /* Outer VLAN tag will be used for VLAN filtering */ + enetc_port_wr(hw, ENETC4_PSIVLANFMR, PSIVLANFMR_VS); + + enetc4_set_default_si_vlan_promisc(pf); + + /* Disable SI MAC multicast & unicast promiscuous */ + enetc_port_wr(hw, ENETC4_PSIPMMR, 0); + + enetc4_set_si_msix_num(pf); + + enetc4_enable_all_si(pf); +} + +static void enetc4_pf_reset_tc_msdu(struct enetc_hw *hw) +{ + u32 val = ENETC_MAC_MAXFRM_SIZE; + int tc; + + val = u32_replace_bits(val, SDU_TYPE_MPDU, PTCTMSDUR_SDU_TYPE); + + for (tc = 0; tc < 8; tc++) + enetc_port_wr(hw, ENETC4_PTCTMSDUR(tc), val); +} + +static void enetc4_set_trx_frame_size(struct enetc_pf *pf) +{ + struct enetc_si *si = pf->si; + + enetc_port_mac_wr(si, ENETC4_PM_MAXFRM(0), + ENETC_SET_MAXFRM(ENETC_MAC_MAXFRM_SIZE)); + + enetc4_pf_reset_tc_msdu(&si->hw); +} + +static void enetc4_set_rss_key(struct enetc_hw *hw, const u8 *bytes) +{ + int i; + + for (i = 0; i < ENETC_RSSHASH_KEY_SIZE / 4; i++) + enetc_port_wr(hw, ENETC4_PRSSKR(i), ((u32 *)bytes)[i]); +} + +static void enetc4_set_default_rss_key(struct enetc_pf *pf) +{ + u8 hash_key[ENETC_RSSHASH_KEY_SIZE] = {0}; + struct enetc_hw *hw = &pf->si->hw; + + /* set up hash key */ + get_random_bytes(hash_key, ENETC_RSSHASH_KEY_SIZE); + enetc4_set_rss_key(hw, hash_key); +} + +static void enetc4_enable_trx(struct enetc_pf *pf) +{ + struct enetc_hw *hw = &pf->si->hw; + + /* Enable port transmit/receive */ + enetc_port_wr(hw, ENETC4_POR, 0); +} + +static void enetc4_configure_port(struct enetc_pf *pf) +{ + enetc4_configure_port_si(pf); + enetc4_set_trx_frame_size(pf); + enetc4_set_default_rss_key(pf); + enetc4_enable_trx(pf); +} + +static int enetc4_pf_init(struct enetc_pf *pf) +{ + struct device *dev = &pf->si->pdev->dev; + int err; + + /* Initialize the MAC address for PF and VFs */ + err = enetc_setup_mac_addresses(dev->of_node, pf); + if (err) { + dev_err(dev, "Failed to set MAC addresses\n"); + return err; + } + + enetc4_configure_port(pf); + + return 0; +} + +static const struct net_device_ops enetc4_ndev_ops = { + .ndo_open = enetc_open, + .ndo_stop = enetc_close, + .ndo_start_xmit = enetc_xmit, + .ndo_get_stats = enetc_get_stats, + .ndo_set_mac_address = enetc_pf_set_mac_addr, +}; + +static struct phylink_pcs * +enetc4_pl_mac_select_pcs(struct phylink_config *config, phy_interface_t iface) +{ + struct enetc_pf *pf = phylink_to_enetc_pf(config); + + return pf->pcs; +} + +static void enetc4_mac_config(struct enetc_pf *pf, unsigned int mode, + phy_interface_t phy_mode) +{ + struct enetc_ndev_priv *priv = netdev_priv(pf->si->ndev); + struct enetc_si *si = pf->si; + u32 val; + + val = enetc_port_mac_rd(si, ENETC4_PM_IF_MODE(0)); + val &= ~(PM_IF_MODE_IFMODE | PM_IF_MODE_ENA); + + switch (phy_mode) { + case PHY_INTERFACE_MODE_RGMII: + case PHY_INTERFACE_MODE_RGMII_ID: + case PHY_INTERFACE_MODE_RGMII_RXID: + case PHY_INTERFACE_MODE_RGMII_TXID: + val |= IFMODE_RGMII; + /* We need to enable auto-negotiation for the MAC + * if its RGMII interface support In-Band status. + */ + if (phylink_autoneg_inband(mode)) + val |= PM_IF_MODE_ENA; + break; + case PHY_INTERFACE_MODE_RMII: + val |= IFMODE_RMII; + break; + case PHY_INTERFACE_MODE_SGMII: + case PHY_INTERFACE_MODE_2500BASEX: + val |= IFMODE_SGMII; + break; + case PHY_INTERFACE_MODE_10GBASER: + case PHY_INTERFACE_MODE_XGMII: + case PHY_INTERFACE_MODE_USXGMII: + val |= IFMODE_XGMII; + break; + default: + dev_err(priv->dev, + "Unsupported PHY mode:%d\n", phy_mode); + return; + } + + enetc_port_mac_wr(si, ENETC4_PM_IF_MODE(0), val); +} + +static void enetc4_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); + + enetc4_mac_config(pf, mode, state->interface); +} + +static void enetc4_set_port_speed(struct enetc_ndev_priv *priv, int speed) +{ + u32 old_speed = priv->speed; + u32 val; + + if (speed == old_speed) + return; + + val = enetc_port_rd(&priv->si->hw, ENETC4_PCR); + val &= ~PCR_PSPEED; + + switch (speed) { + case SPEED_100: + case SPEED_1000: + case SPEED_2500: + case SPEED_10000: + val |= (PCR_PSPEED & PCR_PSPEED_VAL(speed)); + break; + case SPEED_10: + default: + val |= (PCR_PSPEED & PCR_PSPEED_VAL(SPEED_10)); + } + + priv->speed = speed; + enetc_port_wr(&priv->si->hw, ENETC4_PCR, val); +} + +static void enetc4_set_rgmii_mac(struct enetc_pf *pf, int speed, int duplex) +{ + struct enetc_si *si = pf->si; + u32 old_val, val; + + old_val = enetc_port_mac_rd(si, ENETC4_PM_IF_MODE(0)); + val = old_val & ~(PM_IF_MODE_ENA | PM_IF_MODE_M10 | PM_IF_MODE_REVMII); + + switch (speed) { + case SPEED_1000: + val = u32_replace_bits(val, SSP_1G, PM_IF_MODE_SSP); + break; + case SPEED_100: + val = u32_replace_bits(val, SSP_100M, PM_IF_MODE_SSP); + break; + case SPEED_10: + val = u32_replace_bits(val, SSP_10M, PM_IF_MODE_SSP); + } + + val = u32_replace_bits(val, duplex == DUPLEX_FULL ? 0 : 1, + PM_IF_MODE_HD); + + if (val == old_val) + return; + + enetc_port_mac_wr(si, ENETC4_PM_IF_MODE(0), val); +} + +static void enetc4_set_rmii_mac(struct enetc_pf *pf, int speed, int duplex) +{ + struct enetc_si *si = pf->si; + u32 old_val, val; + + old_val = enetc_port_mac_rd(si, ENETC4_PM_IF_MODE(0)); + val = old_val & ~(PM_IF_MODE_ENA | PM_IF_MODE_SSP); + + switch (speed) { + case SPEED_100: + val &= ~PM_IF_MODE_M10; + break; + case SPEED_10: + val |= PM_IF_MODE_M10; + } + + val = u32_replace_bits(val, duplex == DUPLEX_FULL ? 0 : 1, + PM_IF_MODE_HD); + + if (val == old_val) + return; + + enetc_port_mac_wr(si, ENETC4_PM_IF_MODE(0), val); +} + +static void enetc4_set_hd_flow_control(struct enetc_pf *pf, bool enable) +{ + struct enetc_si *si = pf->si; + u32 old_val, val; + + if (!pf->caps.half_duplex) + return; + + old_val = enetc_port_mac_rd(si, ENETC4_PM_CMD_CFG(0)); + val = u32_replace_bits(old_val, enable ? 1 : 0, PM_CMD_CFG_HD_FCEN); + if (val == old_val) + return; + + enetc_port_mac_wr(si, ENETC4_PM_CMD_CFG(0), val); +} + +static void enetc4_set_rx_pause(struct enetc_pf *pf, bool rx_pause) +{ + struct enetc_si *si = pf->si; + u32 old_val, val; + + old_val = enetc_port_mac_rd(si, ENETC4_PM_CMD_CFG(0)); + val = u32_replace_bits(old_val, rx_pause ? 0 : 1, PM_CMD_CFG_PAUSE_IGN); + if (val == old_val) + return; + + enetc_port_mac_wr(si, ENETC4_PM_CMD_CFG(0), val); +} + +static void enetc4_set_tx_pause(struct enetc_pf *pf, int num_rxbdr, bool tx_pause) +{ + u32 pause_off_thresh = 0, pause_on_thresh = 0; + u32 init_quanta = 0, refresh_quanta = 0; + struct enetc_hw *hw = &pf->si->hw; + u32 rbmr, old_rbmr; + int i; + + for (i = 0; i < num_rxbdr; i++) { + old_rbmr = enetc_rxbdr_rd(hw, i, ENETC_RBMR); + rbmr = u32_replace_bits(old_rbmr, tx_pause ? 1 : 0, ENETC_RBMR_CM); + if (rbmr == old_rbmr) + continue; + + enetc_rxbdr_wr(hw, i, 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; + } + + enetc_port_mac_wr(pf->si, ENETC4_PM_PAUSE_QUANTA(0), init_quanta); + enetc_port_mac_wr(pf->si, ENETC4_PM_PAUSE_THRESH(0), refresh_quanta); + enetc_port_wr(hw, ENETC4_PPAUONTR, pause_on_thresh); + enetc_port_wr(hw, ENETC4_PPAUOFFTR, pause_off_thresh); +} + +static void enetc4_enable_mac(struct enetc_pf *pf, bool en) +{ + struct enetc_si *si = pf->si; + u32 val; + + val = enetc_port_mac_rd(si, ENETC4_PM_CMD_CFG(0)); + val &= ~(PM_CMD_CFG_TX_EN | PM_CMD_CFG_RX_EN); + val |= en ? (PM_CMD_CFG_TX_EN | PM_CMD_CFG_RX_EN) : 0; + + enetc_port_mac_wr(si, ENETC4_PM_CMD_CFG(0), val); +} + +static void enetc4_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); + struct enetc_si *si = pf->si; + struct enetc_ndev_priv *priv; + bool hd_fc = false; + + priv = netdev_priv(si->ndev); + enetc4_set_port_speed(priv, speed); + + if (!phylink_autoneg_inband(mode) && + phy_interface_mode_is_rgmii(interface)) + enetc4_set_rgmii_mac(pf, speed, duplex); + + if (interface == PHY_INTERFACE_MODE_RMII) + enetc4_set_rmii_mac(pf, speed, duplex); + + if (duplex == DUPLEX_FULL) { + /* When preemption is enabled, generation of PAUSE frames + * must be disabled, as stated in the IEEE 802.3 standard. + */ + if (priv->active_offloads & ENETC_F_QBU) + tx_pause = false; + } else { /* DUPLEX_HALF */ + if (tx_pause || rx_pause) + hd_fc = true; + + /* As per 802.3 annex 31B, PAUSE frames are only supported + * when the link is configured for full duplex operation. + */ + tx_pause = false; + rx_pause = false; + } + + enetc4_set_hd_flow_control(pf, hd_fc); + enetc4_set_tx_pause(pf, priv->num_rx_rings, tx_pause); + enetc4_set_rx_pause(pf, rx_pause); + enetc4_enable_mac(pf, true); +} + +static void enetc4_pl_mac_link_down(struct phylink_config *config, + unsigned int mode, + phy_interface_t interface) +{ + struct enetc_pf *pf = phylink_to_enetc_pf(config); + + enetc4_enable_mac(pf, false); +} + +static const struct phylink_mac_ops enetc_pl_mac_ops = { + .mac_select_pcs = enetc4_pl_mac_select_pcs, + .mac_config = enetc4_pl_mac_config, + .mac_link_up = enetc4_pl_mac_link_up, + .mac_link_down = enetc4_pl_mac_link_down, +}; + +static int enetc4_link_init(struct enetc_ndev_priv *priv, + struct device_node *node) +{ + struct enetc_pf *pf = enetc_si_priv(priv->si); + struct device *dev = priv->dev; + int err; + + err = of_get_phy_mode(node, &pf->if_mode); + if (err) { + dev_err(dev, "Failed to get PHY mode\n"); + return err; + } + + err = enetc_mdiobus_create(pf, node); + if (err) { + dev_err(dev, "Failed to create MDIO bus\n"); + return err; + } + + err = enetc_phylink_create(priv, node, &enetc_pl_mac_ops); + if (err) { + dev_err(dev, "Failed to create phylink\n"); + goto err_phylink_create; + } + + return 0; + +err_phylink_create: + enetc_mdiobus_destroy(pf); + + return err; +} + +static void enetc4_link_deinit(struct enetc_ndev_priv *priv) +{ + struct enetc_pf *pf = enetc_si_priv(priv->si); + + enetc_phylink_destroy(priv); + enetc_mdiobus_destroy(pf); +} + +static int enetc4_pf_netdev_create(struct enetc_si *si) +{ + struct device *dev = &si->pdev->dev; + struct enetc_ndev_priv *priv; + struct net_device *ndev; + int err; + + ndev = alloc_etherdev_mqs(sizeof(struct enetc_ndev_priv), + si->num_tx_rings, si->num_rx_rings); + if (!ndev) + return -ENOMEM; + + priv = netdev_priv(ndev); + priv->ref_clk = devm_clk_get_optional(dev, "enet_ref_clk"); + if (IS_ERR(priv->ref_clk)) { + dev_err(dev, "Get enet_ref_clk failed\n"); + err = PTR_ERR(priv->ref_clk); + goto err_clk_get; + } + + enetc_pf_netdev_setup(si, ndev, &enetc4_ndev_ops); + + enetc_init_si_rings_params(priv); + + err = enetc_configure_si(priv); + if (err) { + dev_err(dev, "Failed to configure SI\n"); + goto err_config_si; + } + + err = enetc_alloc_msix(priv); + if (err) { + dev_err(dev, "Failed to alloc MSI-X\n"); + goto err_alloc_msix; + } + + err = enetc4_link_init(priv, dev->of_node); + if (err) + goto err_link_init; + + err = register_netdev(ndev); + if (err) { + dev_err(dev, "Failed to register netdev\n"); + goto err_reg_netdev; + } + + return 0; + +err_reg_netdev: + enetc4_link_deinit(priv); +err_link_init: + enetc_free_msix(priv); +err_alloc_msix: +err_config_si: +err_clk_get: + mutex_destroy(&priv->mm_lock); + free_netdev(ndev); + + return err; +} + +static void enetc4_pf_netdev_destroy(struct enetc_si *si) +{ + struct net_device *ndev = si->ndev; + struct enetc_ndev_priv *priv; + + priv = netdev_priv(ndev); + unregister_netdev(ndev); + enetc_free_msix(priv); + free_netdev(ndev); +} + +static int enetc4_pf_probe(struct pci_dev *pdev, + const struct pci_device_id *ent) +{ + struct device *dev = &pdev->dev; + struct enetc_si *si; + struct enetc_pf *pf; + int err; + + err = enetc_pci_probe(pdev, KBUILD_MODNAME, sizeof(*pf)); + if (err) { + dev_err_probe(dev, err, "PCIe probing failed\n"); + return err; + } + + /* si is the private data. */ + si = pci_get_drvdata(pdev); + if (!si->hw.port || !si->hw.global) { + err = -ENODEV; + dev_err_probe(dev, err, "Couldn't map PF only space\n"); + goto err_enetc_pci_probe; + } + + err = enetc4_pf_struct_init(si); + if (err) + goto err_pf_struct_init; + + pf = enetc_si_priv(si); + err = enetc4_pf_init(pf); + if (err) + goto err_pf_init; + + pinctrl_pm_select_default_state(dev); + enetc_get_si_caps(si); + err = enetc4_pf_netdev_create(si); + if (err) + goto err_netdev_create; + + return 0; + +err_netdev_create: +err_pf_init: +err_pf_struct_init: +err_enetc_pci_probe: + enetc_pci_remove(pdev); + + return err; +} + +static void enetc4_pf_remove(struct pci_dev *pdev) +{ + struct enetc_si *si = pci_get_drvdata(pdev); + + enetc4_pf_netdev_destroy(si); + enetc_pci_remove(pdev); +} + +static const struct pci_device_id enetc4_pf_id_table[] = { + { PCI_DEVICE(PCI_VENDOR_ID_NXP2, PCI_DEVICE_ID_NXP2_ENETC_PF) }, + { 0, } /* End of table. */ +}; +MODULE_DEVICE_TABLE(pci, enetc4_pf_id_table); + +static struct pci_driver enetc4_pf_driver = { + .name = KBUILD_MODNAME, + .id_table = enetc4_pf_id_table, + .probe = enetc4_pf_probe, + .remove = enetc4_pf_remove, +}; +module_pci_driver(enetc4_pf_driver); + +MODULE_DESCRIPTION("ENETC4 PF Driver"); +MODULE_LICENSE("Dual BSD/GPL"); diff --git a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c index 2563eb8ac7b6..13ce771e0c43 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_ethtool.c @@ -44,6 +44,9 @@ static int enetc_get_reglen(struct net_device *ndev) struct enetc_hw *hw = &priv->si->hw; int len; + if (is_enetc_rev4(priv->si)) + return -EOPNOTSUPP; + len = ARRAY_SIZE(enetc_si_regs); len += ARRAY_SIZE(enetc_txbdr_regs) * priv->num_tx_rings; len += ARRAY_SIZE(enetc_rxbdr_regs) * priv->num_rx_rings; @@ -68,6 +71,9 @@ static void enetc_get_regs(struct net_device *ndev, struct ethtool_regs *regs, int i, j; u32 addr; + if (is_enetc_rev4(priv->si)) + return; + for (i = 0; i < ARRAY_SIZE(enetc_si_regs); i++) { *buf++ = enetc_si_regs[i]; *buf++ = enetc_rd(hw, enetc_si_regs[i]); @@ -229,6 +235,9 @@ static int enetc_get_sset_count(struct net_device *ndev, int sset) struct enetc_ndev_priv *priv = netdev_priv(ndev); int len; + if (is_enetc_rev4(priv->si)) + return -EOPNOTSUPP; + if (sset != ETH_SS_STATS) return -EOPNOTSUPP; @@ -250,6 +259,9 @@ static void enetc_get_strings(struct net_device *ndev, u32 stringset, u8 *data) u8 *p = data; int i, j; + if (is_enetc_rev4(priv->si)) + return; + switch (stringset) { case ETH_SS_STATS: for (i = 0; i < ARRAY_SIZE(enetc_si_counters); i++) { @@ -290,6 +302,9 @@ static void enetc_get_ethtool_stats(struct net_device *ndev, struct enetc_hw *hw = &priv->si->hw; int i, o = 0; + if (is_enetc_rev4(priv->si)) + return; + for (i = 0; i < ARRAY_SIZE(enetc_si_counters); i++) data[o++] = enetc_rd64(hw, enetc_si_counters[i].reg); @@ -331,6 +346,9 @@ static void enetc_get_pause_stats(struct net_device *ndev, struct enetc_hw *hw = &priv->si->hw; struct enetc_si *si = priv->si; + if (is_enetc_rev4(si)) + return; + switch (pause_stats->src) { case ETHTOOL_MAC_STATS_SRC_EMAC: enetc_pause_stats(hw, 0, pause_stats); @@ -418,6 +436,9 @@ static void enetc_get_eth_mac_stats(struct net_device *ndev, struct enetc_hw *hw = &priv->si->hw; struct enetc_si *si = priv->si; + if (is_enetc_rev4(si)) + return; + switch (mac_stats->src) { case ETHTOOL_MAC_STATS_SRC_EMAC: enetc_mac_stats(hw, 0, mac_stats); @@ -439,6 +460,9 @@ static void enetc_get_eth_ctrl_stats(struct net_device *ndev, struct enetc_hw *hw = &priv->si->hw; struct enetc_si *si = priv->si; + if (is_enetc_rev4(si)) + return; + switch (ctrl_stats->src) { case ETHTOOL_MAC_STATS_SRC_EMAC: enetc_ctrl_stats(hw, 0, ctrl_stats); @@ -461,6 +485,9 @@ static void enetc_get_rmon_stats(struct net_device *ndev, struct enetc_hw *hw = &priv->si->hw; struct enetc_si *si = priv->si; + if (is_enetc_rev4(si)) + return; + *ranges = enetc_rmon_ranges; switch (rmon_stats->src) { @@ -593,6 +620,9 @@ static int enetc_get_rxnfc(struct net_device *ndev, struct ethtool_rxnfc *rxnfc, struct enetc_ndev_priv *priv = netdev_priv(ndev); int i, j; + if (is_enetc_rev4(priv->si)) + return -EOPNOTSUPP; + switch (rxnfc->cmd) { case ETHTOOL_GRXRINGS: rxnfc->data = priv->num_rx_rings; @@ -643,6 +673,9 @@ static int enetc_set_rxnfc(struct net_device *ndev, struct ethtool_rxnfc *rxnfc) struct enetc_ndev_priv *priv = netdev_priv(ndev); int err; + if (is_enetc_rev4(priv->si)) + return -EOPNOTSUPP; + switch (rxnfc->cmd) { case ETHTOOL_SRXCLSRLINS: if (rxnfc->fs.location >= priv->si->num_fs_entries) @@ -678,6 +711,9 @@ static u32 enetc_get_rxfh_key_size(struct net_device *ndev) { struct enetc_ndev_priv *priv = netdev_priv(ndev); + if (is_enetc_rev4(priv->si)) + return 0; + /* return the size of the RX flow hash key. PF only */ return (priv->si->hw.port) ? ENETC_RSSHASH_KEY_SIZE : 0; } @@ -686,6 +722,9 @@ static u32 enetc_get_rxfh_indir_size(struct net_device *ndev) { struct enetc_ndev_priv *priv = netdev_priv(ndev); + if (is_enetc_rev4(priv->si)) + return 0; + /* return the size of the RX flow hash indirection table */ return priv->si->num_rss; } @@ -697,6 +736,9 @@ static int enetc_get_rxfh(struct net_device *ndev, struct enetc_hw *hw = &priv->si->hw; int err = 0, i; + if (is_enetc_rev4(priv->si)) + return -EOPNOTSUPP; + /* return hash function */ rxfh->hfunc = ETH_RSS_HASH_TOP; @@ -731,6 +773,9 @@ static int enetc_set_rxfh(struct net_device *ndev, struct enetc_hw *hw = &priv->si->hw; int err = 0; + if (is_enetc_rev4(priv->si)) + return -EOPNOTSUPP; + /* set hash key, if PF */ if (rxfh->key && hw->port) enetc_set_rss_key(hw, rxfh->key); @@ -775,9 +820,10 @@ static int enetc_get_coalesce(struct net_device *ndev, { struct enetc_ndev_priv *priv = netdev_priv(ndev); struct enetc_int_vector *v = priv->int_vector[0]; + u64 clk_freq = priv->si->clk_freq; - ic->tx_coalesce_usecs = enetc_cycles_to_usecs(priv->tx_ictt); - ic->rx_coalesce_usecs = enetc_cycles_to_usecs(v->rx_ictt); + ic->tx_coalesce_usecs = enetc_cycles_to_usecs(priv->tx_ictt, clk_freq); + ic->rx_coalesce_usecs = enetc_cycles_to_usecs(v->rx_ictt, clk_freq); ic->tx_max_coalesced_frames = ENETC_TXIC_PKTTHR; ic->rx_max_coalesced_frames = ENETC_RXIC_PKTTHR; @@ -793,12 +839,13 @@ static int enetc_set_coalesce(struct net_device *ndev, struct netlink_ext_ack *extack) { struct enetc_ndev_priv *priv = netdev_priv(ndev); + u64 clk_freq = priv->si->clk_freq; u32 rx_ictt, tx_ictt; int i, ic_mode; bool changed; - tx_ictt = enetc_usecs_to_cycles(ic->tx_coalesce_usecs); - rx_ictt = enetc_usecs_to_cycles(ic->rx_coalesce_usecs); + tx_ictt = enetc_usecs_to_cycles(ic->tx_coalesce_usecs, clk_freq); + rx_ictt = enetc_usecs_to_cycles(ic->rx_coalesce_usecs, clk_freq); if (ic->rx_max_coalesced_frames != ENETC_RXIC_PKTTHR) return -EOPNOTSUPP; @@ -843,8 +890,12 @@ static int enetc_set_coalesce(struct net_device *ndev, static int enetc_get_ts_info(struct net_device *ndev, struct kernel_ethtool_ts_info *info) { + struct enetc_ndev_priv *priv = netdev_priv(ndev); int *phc_idx; + if (is_enetc_rev4(priv->si)) + return -EOPNOTSUPP; + phc_idx = symbol_get(enetc_phc_index); if (phc_idx) { info->phc_index = *phc_idx; @@ -942,6 +993,9 @@ static void enetc_get_mm_stats(struct net_device *ndev, struct enetc_hw *hw = &priv->si->hw; struct enetc_si *si = priv->si; + if (is_enetc_rev4(si)) + return; + if (!(si->hw_features & ENETC_SI_F_QBU)) return; @@ -960,6 +1014,9 @@ static int enetc_get_mm(struct net_device *ndev, struct ethtool_mm_state *state) struct enetc_hw *hw = &si->hw; u32 lafs, rafs, val; + if (is_enetc_rev4(si)) + return -EOPNOTSUPP; + if (!(si->hw_features & ENETC_SI_F_QBU)) return -EOPNOTSUPP; @@ -1090,6 +1147,9 @@ static int enetc_set_mm(struct net_device *ndev, struct ethtool_mm_cfg *cfg, u32 val, add_frag_size; int err; + if (is_enetc_rev4(si)) + return -EOPNOTSUPP; + if (!(si->hw_features & ENETC_SI_F_QBU)) return -EOPNOTSUPP; diff --git a/drivers/net/ethernet/freescale/enetc/enetc_hw.h b/drivers/net/ethernet/freescale/enetc/enetc_hw.h index 6a7b9b75d660..230e94986091 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_hw.h +++ b/drivers/net/ethernet/freescale/enetc/enetc_hw.h @@ -25,6 +25,7 @@ #define ENETC_SIPCAPR0_RSS BIT(8) #define ENETC_SIPCAPR0_QBV BIT(4) #define ENETC_SIPCAPR0_QBU BIT(3) +#define ENETC_SIPCAPR0_RFS BIT(2) #define ENETC_SIPCAPR1 0x24 #define ENETC_SITGTGR 0x30 #define ENETC_SIRBGCR 0x38 @@ -971,15 +972,16 @@ struct enetc_cbd { u8 status_flags; }; -#define ENETC_CLK 400000000ULL -static inline u32 enetc_cycles_to_usecs(u32 cycles) +#define ENETC_CLK 400000000ULL +#define ENETC_CLK_333M 333000000ULL +static inline u32 enetc_cycles_to_usecs(u32 cycles, u64 clk_freq) { - return (u32)div_u64(cycles * 1000000ULL, ENETC_CLK); + return (u32)div_u64(cycles * 1000000ULL, clk_freq); } -static inline u32 enetc_usecs_to_cycles(u32 usecs) +static inline u32 enetc_usecs_to_cycles(u32 usecs, u64 clk_freq) { - return (u32)div_u64(usecs * ENETC_CLK, 1000000ULL); + return (u32)div_u64(usecs * clk_freq, 1000000ULL); } /* Port traffic class frame preemption register */ diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf.h b/drivers/net/ethernet/freescale/enetc/enetc_pf.h index 39db9d5c2e50..5ed97137e5c5 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_pf.h +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf.h @@ -28,6 +28,14 @@ struct enetc_vf_state { enum enetc_vf_flags flags; }; +struct enetc_port_caps { + u32 half_duplex:1; + int num_vsi; + int num_msix; + int num_rx_bdr; + int num_tx_bdr; +}; + struct enetc_pf; struct enetc_pf_ops { @@ -61,6 +69,7 @@ struct enetc_pf { phy_interface_t if_mode; struct phylink_config phylink_config; + struct enetc_port_caps caps; const struct enetc_pf_ops *ops; }; diff --git a/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c b/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c index 2c6ce887f583..18fe7861a6fe 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c +++ b/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c @@ -120,10 +120,17 @@ void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev, ndev->vlan_features = NETIF_F_SG | NETIF_F_HW_CSUM | NETIF_F_TSO | NETIF_F_TSO6; + ndev->priv_flags |= IFF_UNICAST_FLT; + + /* TODO: currently, i.MX95 ENETC driver does not support advanced features */ + if (is_enetc_rev4(si)) { + ndev->hw_features &= ~(NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_LOOPBACK); + goto end; + } + if (si->num_rss) ndev->hw_features |= NETIF_F_RXHASH; - ndev->priv_flags |= IFF_UNICAST_FLT; ndev->xdp_features = NETDEV_XDP_ACT_BASIC | NETDEV_XDP_ACT_REDIRECT | NETDEV_XDP_ACT_NDO_XMIT | NETDEV_XDP_ACT_RX_SG | NETDEV_XDP_ACT_NDO_XMIT_SG; @@ -135,6 +142,7 @@ void enetc_pf_netdev_setup(struct enetc_si *si, struct net_device *ndev, ndev->hw_features |= NETIF_F_HW_TC; } +end: /* pick up primary MAC address from SI */ enetc_load_primary_mac_addr(&si->hw, ndev); }
The i.MX95 ENETC has been upgraded to revision 4.1, which is very different from the LS1028A ENETC (revision 1.0) except for the SI part. Therefore, the fsl-enetc driver is incompatible with i.MX95 ENETC PF. So add new nxp-enetc4 driver to support i.MX95 ENETC PF, and this driver will be used to support the ENETC PF with major revision 4 for other SoCs in the future. Currently, the nxp-enetc4 driver only supports basic transmission feature for i.MX95 ENETC PF, the more basic and advanced features will be added in the subsequent patches. Signed-off-by: Wei Fang <wei.fang@nxp.com> --- v2 changes: 1. Refine the commit message. 2. Sort the header files. 3. Use dev_err_probe() in enetc4_pf_probe(). 4. Remove unused variable 'pf' from enetc4_pf_remove(). --- drivers/net/ethernet/freescale/enetc/Kconfig | 17 + drivers/net/ethernet/freescale/enetc/Makefile | 3 + drivers/net/ethernet/freescale/enetc/enetc.c | 50 +- drivers/net/ethernet/freescale/enetc/enetc.h | 19 +- .../net/ethernet/freescale/enetc/enetc4_hw.h | 153 ++++ .../net/ethernet/freescale/enetc/enetc4_pf.c | 757 ++++++++++++++++++ .../ethernet/freescale/enetc/enetc_ethtool.c | 68 +- .../net/ethernet/freescale/enetc/enetc_hw.h | 12 +- .../net/ethernet/freescale/enetc/enetc_pf.h | 9 + .../freescale/enetc/enetc_pf_common.c | 10 +- 10 files changed, 1076 insertions(+), 22 deletions(-) create mode 100644 drivers/net/ethernet/freescale/enetc/enetc4_hw.h create mode 100644 drivers/net/ethernet/freescale/enetc/enetc4_pf.c