[PATCH net-next 10/11] net: enetc: add preliminary support for i.MX95 ENETC PF
From: Wei Fang
Date: Wed Oct 09 2024 - 06:10:48 EST
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 we developed the nxp-enetc4 driver for i.MX95 ENETC
PF, and this driver will be used to support the ENETC PF with major
revision 4 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@xxxxxxx>
---
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 | 761 ++++++++++++++++++
.../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, 1080 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 6f3306f14060..357c42efc4fb 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 NXP_ENETC_PF_COMMON
+ select FSL_ENETC_CORE
+ select FSL_ENETC_MDIO
+ 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 b84c88a76762..4e672089e260 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..e38ade76260b
--- /dev/null
+++ b/drivers/net/ethernet/freescale/enetc/enetc4_pf.c
@@ -0,0 +1,761 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
+/* Copyright 2024 NXP */
+#include <linux/unaligned.h>
+#include <linux/module.h>
+#include <linux/of_net.h>
+#include <linux/of_platform.h>
+#include <linux/clk.h>
+#include <linux/pinctrl/consumer.h>
+#include <linux/fsl/netc_global.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(dev, "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(dev, "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;
+ struct enetc_pf *pf;
+
+ si = pci_get_drvdata(pdev);
+ pf = enetc_si_priv(si);
+
+ 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 ad7dab0eb752..91f2b5afb506 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 {
@@ -60,6 +68,7 @@ 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 bbfb5c1ffd13..d00e1ddadb43 100644
--- a/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c
+++ b/drivers/net/ethernet/freescale/enetc/enetc_pf_common.c
@@ -119,10 +119,17 @@ 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 | NETIF_F_GSO_UDP_L4;
+ 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;
@@ -133,6 +140,7 @@ 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