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Message-Id: <20230811153249.283984-4-radu-nicolae.pirea@oss.nxp.com>
Date: Fri, 11 Aug 2023 18:32:47 +0300
From: "Radu Pirea (NXP OSS)" <radu-nicolae.pirea@....nxp.com>
To: andrew@...n.ch,
hkallweit1@...il.com,
linux@...linux.org.uk,
davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com,
richardcochran@...il.com,
sd@...asysnail.net
Cc: netdev@...r.kernel.org,
linux-kernel@...r.kernel.org,
"Radu Pirea (NXP OSS)" <radu-nicolae.pirea@....nxp.com>
Subject: [RFC net-next v1 3/5] net: phy: nxp-c45-tja11xx add MACsec support
Add MACsec support.
Signed-off-by: Radu Pirea (NXP OSS) <radu-nicolae.pirea@....nxp.com>
---
MAINTAINERS | 2 +-
drivers/net/phy/Makefile | 2 +-
drivers/net/phy/nxp-c45-tja11xx-macsec.c | 1819 ++++++++++++++++++++++
drivers/net/phy/nxp-c45-tja11xx.c | 72 +-
drivers/net/phy/nxp-c45-tja11xx.h | 37 +
5 files changed, 1901 insertions(+), 31 deletions(-)
create mode 100644 drivers/net/phy/nxp-c45-tja11xx-macsec.c
create mode 100644 drivers/net/phy/nxp-c45-tja11xx.h
diff --git a/MAINTAINERS b/MAINTAINERS
index d984c9a7b12c..f2af99e74e05 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -15173,7 +15173,7 @@ NXP C45 TJA11XX PHY DRIVER
M: Radu Pirea <radu-nicolae.pirea@....nxp.com>
L: netdev@...r.kernel.org
S: Maintained
-F: drivers/net/phy/nxp-c45-tja11xx.c
+F: drivers/net/phy/nxp-c45-tja11xx*
NXP FSPI DRIVER
M: Han Xu <han.xu@....com>
diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
index c945ed9bd14b..cdf0b42deb01 100644
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -83,7 +83,7 @@ obj-$(CONFIG_MICROSEMI_PHY) += mscc/
obj-$(CONFIG_MOTORCOMM_PHY) += motorcomm.o
obj-$(CONFIG_NATIONAL_PHY) += national.o
obj-$(CONFIG_NCN26000_PHY) += ncn26000.o
-obj-$(CONFIG_NXP_C45_TJA11XX_PHY) += nxp-c45-tja11xx.o
+obj-$(CONFIG_NXP_C45_TJA11XX_PHY) += nxp-c45-tja11xx.o nxp-c45-tja11xx-macsec.o
obj-$(CONFIG_NXP_CBTX_PHY) += nxp-cbtx.o
obj-$(CONFIG_NXP_TJA11XX_PHY) += nxp-tja11xx.o
obj-$(CONFIG_QSEMI_PHY) += qsemi.o
diff --git a/drivers/net/phy/nxp-c45-tja11xx-macsec.c b/drivers/net/phy/nxp-c45-tja11xx-macsec.c
new file mode 100644
index 000000000000..da63e35571d0
--- /dev/null
+++ b/drivers/net/phy/nxp-c45-tja11xx-macsec.c
@@ -0,0 +1,1819 @@
+// SPDX-License-Identifier: GPL-2.0
+/* NXP C45 PTP PHY driver interface
+ * Copyright 2023 NXP
+ * Author: Radu Pirea <radu-nicolae.pirea@....nxp.com>
+ */
+
+#include <linux/delay.h>
+#include <linux/ethtool_netlink.h>
+#include <linux/kernel.h>
+#include <linux/mii.h>
+#include <linux/module.h>
+#include <linux/phy.h>
+#include <linux/processor.h>
+#include <net/macsec.h>
+
+#include "nxp-c45-tja11xx.h"
+
+#define MACSEC_REG_SIZE 32
+#define TX_SC_MAX 4
+
+#define TX_SC_BIT(secy_id) BIT(MACSEC_REG_SIZE - (secy_id) - 1)
+
+#define VEND1_MACSEC_BASE 0x9000
+
+#define MACSEC_CFG 0x0000
+#define MACSEC_CFG_BYPASS BIT(1)
+#define MACSEC_CFG_S0I BIT(0)
+
+#define MACSEC_TPNET 0x0044
+#define PN_WRAP_THRESHOLD 0xffffffff
+
+#define MACSEC_RXSCA 0x0080
+#define MACSEC_RXSCKA 0x0084
+
+#define MACSEC_TXSCA 0x00C0
+#define MACSEC_TXSCKA 0x00C4
+
+#define MACSEC_RXSC_SCI_1H 0x0100
+#define MACSEC_RXSC_SCI_2H 0x0104
+
+#define MACSEC_RXSC_CFG 0x0128
+#define MACSEC_RXSC_CFG_XPN BIT(25)
+#define MACSEC_RXSC_CFG_AES_256 BIT(24)
+#define MACSEC_RXSC_CFG_SCI_EN BIT(11)
+#define MACSEC_RXSC_CFG_RP BIT(10)
+#define MACSEC_RXSC_CFG_VF_MASK GENMASK(9, 8)
+#define MACSEC_RXSC_CFG_VF_OFF 8
+
+#define MACSEC_RPW 0x012C
+
+#define MACSEC_RXSA_A_CS 0x0180
+#define MACSEC_RXSA_A_NPN 0x0184
+#define MACSEC_RXSA_A_XNPN 0x0188
+#define MACSEC_RXSA_A_LNPN 0x018C
+#define MACSEC_RXSA_A_LXNPN 0x0190
+
+#define MACSEC_RXSA_B_CS 0x01C0
+#define MACSEC_RXSA_B_NPN 0x01C4
+#define MACSEC_RXSA_B_XNPN 0x01C8
+#define MACSEC_RXSA_B_LNPN 0x01CC
+#define MACSEC_RXSA_B_LXNPN 0x01D0
+
+#define MACSEC_RXSA_CS_A BIT(31)
+#define MACSEC_RXSA_CS_AN_OFF 1
+#define MACSEC_RXSA_CS_EN BIT(0)
+
+#define MACSEC_TXSC_SCI_1H 0x0200
+#define MACSEC_TXSC_SCI_2H 0x0204
+#define MACSEC_TXSC_CFG 0x0228
+#define MACSEC_TXSC_CFG_XPN BIT(25)
+#define MACSEC_TXSC_CFG_AES_256 BIT(24)
+#define MACSEC_TXSC_CFG_AN_MASK GENMASK(19, 18)
+#define MACSEC_TXSC_CFG_AN_OFF 18
+#define MACSEC_TXSC_CFG_ASA BIT(17)
+#define MACSEC_TXSC_CFG_SCE BIT(16)
+#define MACSEC_TXSC_CFG_ENCRYPT BIT(4)
+#define MACSEC_TXSC_CFG_PROTECT BIT(3)
+#define MACSEC_TXSC_CFG_SEND_SCI BIT(2)
+#define MACSEC_TXSC_CFG_END_STATION BIT(1)
+#define MACSEC_TXSC_CFG_SCI BIT(0)
+
+#define MACSEC_TXSA_A_CS 0x0280
+#define MACSEC_TXSA_A_NPN 0x0284
+#define MACSEC_TXSA_A_XNPN 0x0288
+
+#define MACSEC_TXSA_B_CS 0x02C0
+#define MACSEC_TXSA_B_NPN 0x02C4
+#define MACSEC_TXSA_B_XNPN 0x02C8
+
+#define MACSEC_TXSA_CS_A BIT(31)
+
+#define MACSEC_EVR 0x0400
+#define MACSEC_EVER 0x0404
+
+#define MACSEC_RXSA_A_KA 0x0700
+#define MACSEC_RXSA_A_SSCI 0x0720
+#define MACSEC_RXSA_A_SALT 0x0724
+
+#define MACSEC_RXSA_B_KA 0x0740
+#define MACSEC_RXSA_B_SSCI 0x0760
+#define MACSEC_RXSA_B_SALT 0x0764
+
+#define MACSEC_TXSA_A_KA 0x0780
+#define MACSEC_TXSA_A_SSCI 0x07A0
+#define MACSEC_TXSA_A_SALT 0x07A4
+
+#define MACSEC_TXSA_B_KA 0x07C0
+#define MACSEC_TXSA_B_SSCI 0x07E0
+#define MACSEC_TXSA_B_SALT 0x07E4
+
+#define MACSEC_UPFR0D2 0x0A08
+#define MACSEC_UPFR0M1 0x0A10
+#define MACSEC_OVP BIT(12)
+
+#define MACSEC_UPFR0M2 0x0A14
+#define ETYPE_MASK 0xffff
+
+#define MACSEC_UPFR0R 0x0A18
+#define MACSEC_UPFR_EN BIT(0)
+
+#define ADPTR_CNTRL 0x0F00
+#define ADPTR_CNTRL_CONFIG_EN BIT(14)
+#define ADPTR_CNTRL_ADPTR_EN BIT(12)
+
+#define TX_SC_FLT_BASE 0x800
+#define TX_SC_FLT_SIZE 0x10
+#define TX_FLT_BASE(flt_id) (TX_SC_FLT_BASE + \
+ TX_SC_FLT_SIZE * (flt_id))
+
+#define TX_SC_FLT_OFF_MAC_DA_SA 0x04
+#define TX_SC_FLT_OFF_MAC_SA 0x08
+#define TX_SC_FLT_OFF_MAC_CFG 0x0C
+#define TX_SC_FLT_BY_SA BIT(14)
+#define TX_SC_FLT_EN BIT(8)
+
+#define TX_SC_FLT_MAC_DA_SA(base) ((base) + TX_SC_FLT_OFF_MAC_DA_SA)
+#define TX_SC_FLT_MAC_SA(base) ((base) + TX_SC_FLT_OFF_MAC_SA)
+#define TX_SC_FLT_MAC_CFG(base) ((base) + TX_SC_FLT_OFF_MAC_CFG)
+
+#define ADAPTER_EN BIT(6)
+#define MACSEC_EN BIT(5)
+
+#define MACSEC_INOV1HS 0x0140
+#define MACSEC_INOV2HS 0x0144
+#define MACSEC_INOD1HS 0x0148
+#define MACSEC_INOD2HS 0x014C
+#define MACSEC_RXSCIPUS 0x0150
+#define MACSEC_RXSCIPDS 0x0154
+#define MACSEC_RXSCIPLS 0x0158
+#define MACSEC_RXAN0INUSS 0x0160
+#define MACSEC_RXAN0IPUSS 0x0170
+#define MACSEC_RXSAAIPOS 0x0194
+#define MACSEC_RXSAAIPIS 0x01B0
+#define MACSEC_RXSAAIPNVS 0x01B4
+#define MACSEC_RXSABIPOS 0x01D4
+#define MACSEC_RXSABIPIS 0x01F0
+#define MACSEC_RXSABIPNVS 0x01F4
+#define MACSEC_OPUS 0x021C
+#define MACSEC_OPTLS 0x022C
+#define MACSEC_OOE1HS 0x0248
+#define MACSEC_OOE2HS 0x024C
+#define MACSEC_TXSAAOPPS 0x028C
+#define MACSEC_TXSAAOPES 0x0290
+#define MACSEC_TXSABOPPS 0x02CC
+#define MACSEC_TXSABOPES 0x02D0
+#define MACSEC_INPWTS 0x0630
+#define MACSEC_INPBTS 0x0638
+#define MACSEC_IPSNFS 0x063C
+
+struct nxp_c45_rx_sc {
+ struct macsec_rx_sc *rx_sc;
+ struct macsec_rx_sa *rx_sa_a;
+ struct macsec_rx_sa *rx_sa_b;
+};
+
+struct nxp_c45_tx_sa {
+ struct macsec_tx_sa *tx_sa;
+ struct macsec_tx_sa_stats stats;
+ u8 key[MACSEC_MAX_KEY_LEN];
+ u8 salt[MACSEC_SALT_LEN];
+ u8 an;
+ u64 next_pn;
+ bool is_enabled;
+ bool is_key_a;
+};
+
+struct nxp_c45_secy {
+ struct macsec_secy *secy;
+ struct nxp_c45_tx_sa *tx_sa[MACSEC_NUM_AN];
+ struct nxp_c45_rx_sc *rx_sc;
+ int enabled_an;
+ int secy_id;
+ bool tx_sa_key_a;
+ bool point_to_point;
+ struct list_head list;
+};
+
+struct nxp_c45_macsec {
+ struct list_head secy_list;
+ DECLARE_BITMAP(secy_bitmap, TX_SC_MAX);
+ DECLARE_BITMAP(tx_sc_bitmap, TX_SC_MAX);
+};
+
+struct nxp_c45_macsec_sa_regs {
+ u16 rxsa_cs;
+ u16 rxsa_npn;
+ u16 rxsa_xnpn;
+ u16 rxsa_lnpn;
+ u16 rxsa_lxnpn;
+ u16 txsa_cs;
+ u16 txsa_npn;
+ u16 txsa_xnpn;
+ u16 rxsa_ka;
+ u16 rxsa_ssci;
+ u16 rxsa_salt;
+ u16 txsa_ka;
+ u16 txsa_ssci;
+ u16 txsa_salt;
+};
+
+static const struct nxp_c45_macsec_sa_regs sa_a_regs = {
+ .rxsa_cs = MACSEC_RXSA_A_CS,
+ .rxsa_npn = MACSEC_RXSA_A_NPN,
+ .rxsa_xnpn = MACSEC_RXSA_A_XNPN,
+ .rxsa_lnpn = MACSEC_RXSA_A_LNPN,
+ .rxsa_lxnpn = MACSEC_RXSA_A_LXNPN,
+ .txsa_cs = MACSEC_TXSA_A_CS,
+ .txsa_npn = MACSEC_TXSA_A_NPN,
+ .txsa_xnpn = MACSEC_TXSA_A_XNPN,
+ .rxsa_ka = MACSEC_RXSA_A_KA,
+ .rxsa_ssci = MACSEC_RXSA_A_SSCI,
+ .rxsa_salt = MACSEC_RXSA_A_SALT,
+ .txsa_ka = MACSEC_TXSA_A_KA,
+ .txsa_ssci = MACSEC_TXSA_A_SSCI,
+ .txsa_salt = MACSEC_TXSA_A_SALT,
+};
+
+static const struct nxp_c45_macsec_sa_regs sa_b_regs = {
+ .rxsa_cs = MACSEC_RXSA_B_CS,
+ .rxsa_npn = MACSEC_RXSA_B_NPN,
+ .rxsa_xnpn = MACSEC_RXSA_B_XNPN,
+ .rxsa_lnpn = MACSEC_RXSA_B_LNPN,
+ .rxsa_lxnpn = MACSEC_RXSA_B_LXNPN,
+ .txsa_cs = MACSEC_TXSA_B_CS,
+ .txsa_npn = MACSEC_TXSA_B_NPN,
+ .txsa_xnpn = MACSEC_TXSA_B_XNPN,
+ .rxsa_ka = MACSEC_RXSA_B_KA,
+ .rxsa_ssci = MACSEC_RXSA_B_SSCI,
+ .rxsa_salt = MACSEC_RXSA_B_SALT,
+ .txsa_ka = MACSEC_TXSA_B_KA,
+ .txsa_ssci = MACSEC_TXSA_B_SSCI,
+ .txsa_salt = MACSEC_TXSA_B_SALT,
+};
+
+static const
+struct nxp_c45_macsec_sa_regs *nxp_c45_get_macsec_sa_regs(bool key_a)
+{
+ if (key_a)
+ return &sa_a_regs;
+
+ return &sa_b_regs;
+}
+
+static int nxp_c45_macsec_write(struct phy_device *phydev, u16 reg, u32 val)
+{
+ reg = reg / 2;
+ phy_write_mmd(phydev, MDIO_MMD_VEND2,
+ VEND1_MACSEC_BASE + reg, val);
+ phy_write_mmd(phydev, MDIO_MMD_VEND2,
+ VEND1_MACSEC_BASE + reg + 1, val >> 16);
+ return 0;
+}
+
+static int nxp_c45_macsec_read(struct phy_device *phydev, u16 reg, u32 *value)
+{
+ u32 lvalue;
+ int ret;
+
+ reg = reg / 2;
+ ret = phy_read_mmd(phydev, MDIO_MMD_VEND2, VEND1_MACSEC_BASE + reg);
+ if (ret < 0)
+ return ret;
+
+ lvalue = (u32)ret & 0xffff;
+
+ ret = phy_read_mmd(phydev, MDIO_MMD_VEND2, VEND1_MACSEC_BASE + reg + 1);
+ if (ret < 0)
+ return ret;
+
+ lvalue |= (u32)ret << 16;
+ *value = lvalue;
+
+ return 0;
+}
+
+static void nxp_c45_select_secy(struct phy_device *phydev, u8 id)
+{
+ nxp_c45_macsec_write(phydev, MACSEC_RXSCA, id);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSCKA, id);
+ nxp_c45_macsec_write(phydev, MACSEC_TXSCA, id);
+ nxp_c45_macsec_write(phydev, MACSEC_TXSCKA, id);
+}
+
+void nxp_c45_macsec_config_init(struct phy_device *phydev)
+{
+ if (!phydev->macsec_ops)
+ return;
+
+ phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, VEND1_PORT_FUNC_ENABLES,
+ MACSEC_EN | ADAPTER_EN);
+
+ nxp_c45_macsec_write(phydev, ADPTR_CNTRL, ADPTR_CNTRL_CONFIG_EN);
+ nxp_c45_macsec_write(phydev, ADPTR_CNTRL, ADPTR_CNTRL_CONFIG_EN |
+ ADPTR_CNTRL_ADPTR_EN);
+ nxp_c45_macsec_write(phydev, ADPTR_CNTRL,
+ ADPTR_CNTRL_ADPTR_EN);
+
+ nxp_c45_macsec_write(phydev, MACSEC_TPNET, PN_WRAP_THRESHOLD);
+
+ /* Set MKA filter. */
+ nxp_c45_macsec_write(phydev, MACSEC_UPFR0D2, ETH_P_PAE);
+ nxp_c45_macsec_write(phydev, MACSEC_UPFR0M1, MACSEC_OVP);
+ nxp_c45_macsec_write(phydev, MACSEC_UPFR0M2, ETYPE_MASK);
+ nxp_c45_macsec_write(phydev, MACSEC_UPFR0R, MACSEC_UPFR_EN);
+}
+
+static void nxp_c45_macsec_cfg_ptp(struct phy_device *phydev, bool enable)
+{
+ u32 reg = 0;
+
+ nxp_c45_macsec_read(phydev, MACSEC_CFG, ®);
+ if (enable)
+ reg |= MACSEC_CFG_S0I;
+ else
+ reg &= ~MACSEC_CFG_S0I;
+ nxp_c45_macsec_write(phydev, MACSEC_CFG, reg);
+}
+
+static bool nxp_c45_mac_addr_free(struct macsec_context *ctx)
+{
+ struct nxp_c45_phy *priv = ctx->phydev->priv;
+ struct nxp_c45_secy *pos, *tmp;
+
+ list_for_each_entry_safe(pos, tmp, &priv->macsec->secy_list, list) {
+ if (pos->secy == ctx->secy)
+ continue;
+
+ if (memcmp(pos->secy->netdev->dev_addr,
+ ctx->secy->netdev->dev_addr, ETH_ALEN) == 0)
+ return false;
+ }
+
+ return true;
+}
+
+static bool nxp_c45_is_macsec_ptp_enabled(struct list_head *secy_list)
+{
+ struct nxp_c45_secy *pos, *tmp;
+
+ list_for_each_entry_safe(pos, tmp, secy_list, list)
+ if (pos->point_to_point)
+ return pos->point_to_point;
+
+ return false;
+}
+
+static struct nxp_c45_secy *nxp_c45_find_secy(struct list_head *secy_list,
+ sci_t sci)
+{
+ struct nxp_c45_secy *pos, *tmp;
+
+ list_for_each_entry_safe(pos, tmp, secy_list, list)
+ if (pos->secy->sci == sci)
+ return pos;
+
+ return ERR_PTR(-ENOENT);
+}
+
+static void nxp_c45_rx_sc_en(struct phy_device *phydev,
+ struct nxp_c45_rx_sc *rx_sc,
+ bool en)
+{
+ u32 reg = 0;
+
+ nxp_c45_macsec_read(phydev, MACSEC_RXSC_CFG, ®);
+ if (rx_sc->rx_sc->active && en)
+ reg |= MACSEC_RXSC_CFG_SCI_EN;
+ else
+ reg &= ~MACSEC_RXSC_CFG_SCI_EN;
+ nxp_c45_macsec_write(phydev, MACSEC_RXSC_CFG, reg);
+}
+
+static int nxp_c45_tx_sc_en_flt(struct phy_device *phydev, int secy_id, bool en)
+{
+ u32 tx_flt_base = TX_FLT_BASE(secy_id);
+ u32 reg = 0;
+
+ nxp_c45_macsec_read(phydev, TX_SC_FLT_MAC_CFG(tx_flt_base), ®);
+ if (en)
+ reg |= TX_SC_FLT_EN;
+ else
+ reg &= ~TX_SC_FLT_EN;
+ nxp_c45_macsec_write(phydev, TX_SC_FLT_MAC_CFG(tx_flt_base), reg);
+
+ return 0;
+}
+
+static int nxp_c45_mdo_dev_open(struct macsec_context *ctx)
+{
+ struct nxp_c45_phy *priv = ctx->phydev->priv;
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_secy *phy_secy;
+ int any_bit_set;
+ u32 reg = 0;
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+
+ nxp_c45_tx_sc_en_flt(phydev, phy_secy->secy_id, true);
+ nxp_c45_macsec_cfg_ptp(phydev, phy_secy->point_to_point);
+ if (phy_secy->rx_sc)
+ nxp_c45_rx_sc_en(phydev, phy_secy->rx_sc, true);
+
+ any_bit_set = find_first_bit(priv->macsec->secy_bitmap, TX_SC_MAX);
+ if (any_bit_set == TX_SC_MAX) {
+ nxp_c45_macsec_read(phydev, MACSEC_CFG, ®);
+ reg |= MACSEC_CFG_BYPASS;
+ nxp_c45_macsec_write(phydev, MACSEC_CFG, reg);
+ }
+
+ set_bit(phy_secy->secy_id, priv->macsec->secy_bitmap);
+
+ return 0;
+}
+
+static int nxp_c45_mdo_dev_stop(struct macsec_context *ctx)
+{
+ struct nxp_c45_phy *priv = ctx->phydev->priv;
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_secy *phy_secy;
+ int any_bit_set;
+ u32 reg = 0;
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+
+ nxp_c45_tx_sc_en_flt(phydev, phy_secy->secy_id, false);
+ if (phy_secy->rx_sc)
+ nxp_c45_rx_sc_en(phydev, phy_secy->rx_sc, false);
+ nxp_c45_macsec_cfg_ptp(phydev, false);
+
+ clear_bit(phy_secy->secy_id, priv->macsec->secy_bitmap);
+ any_bit_set = find_first_bit(priv->macsec->secy_bitmap, TX_SC_MAX);
+ if (any_bit_set == TX_SC_MAX) {
+ nxp_c45_macsec_read(phydev, MACSEC_CFG, ®);
+ reg &= ~MACSEC_CFG_BYPASS;
+ nxp_c45_macsec_write(phydev, MACSEC_CFG, reg);
+ }
+
+ return 0;
+}
+
+static int nxp_c45_tx_sc_set_flt(struct macsec_context *ctx, int secy_id)
+{
+ u32 tx_flt_base = TX_FLT_BASE(secy_id);
+ const u8 *dev_addr = ctx->secy->netdev->dev_addr;
+ u32 mac_sa;
+
+ mac_sa = dev_addr[0] << 8 | dev_addr[1];
+ nxp_c45_macsec_write(ctx->phydev,
+ TX_SC_FLT_MAC_DA_SA(tx_flt_base),
+ mac_sa);
+ mac_sa = dev_addr[5] | dev_addr[4] << 8 |
+ dev_addr[3] << 16 | dev_addr[2] << 24;
+
+ nxp_c45_macsec_write(ctx->phydev,
+ TX_SC_FLT_MAC_SA(tx_flt_base),
+ mac_sa);
+ nxp_c45_macsec_write(ctx->phydev,
+ TX_SC_FLT_MAC_CFG(tx_flt_base),
+ TX_SC_FLT_BY_SA | TX_SC_FLT_EN |
+ secy_id);
+
+ return 0;
+}
+
+static bool nxp_c45_port_valid(struct nxp_c45_secy *phy_secy, u16 port)
+{
+ if (phy_secy->secy->tx_sc.end_station && __be16_to_cpu(port) != 1)
+ return false;
+
+ return true;
+}
+
+static bool nxp_c45_rx_sc_valid(struct nxp_c45_secy *phy_secy,
+ struct macsec_rx_sc *rx_sc)
+{
+ u16 port = rx_sc->sci >> (ETH_ALEN * 8);
+
+ if (phy_secy->point_to_point && phy_secy->secy_id != 0)
+ return false;
+
+ return nxp_c45_port_valid(phy_secy, port);
+}
+
+static bool nxp_c45_secy_cfg_valid(struct nxp_c45_secy *phy_secy, bool can_ptp)
+{
+ __be16 port = phy_secy->secy->sci >> (ETH_ALEN * 8);
+
+ if (phy_secy->secy->tx_sc.scb)
+ return false;
+
+ if (phy_secy->secy->tx_sc.send_sci && phy_secy->secy->tx_sc.end_station)
+ return false;
+
+ if (!phy_secy->secy->tx_sc.send_sci && !phy_secy->secy->tx_sc.end_station) {
+ if (!can_ptp)
+ return false;
+
+ if (phy_secy->secy_id != 0)
+ return false;
+
+ phy_secy->point_to_point = true;
+ } else {
+ phy_secy->point_to_point = false;
+ }
+
+ return nxp_c45_port_valid(phy_secy, port);
+}
+
+static int nxp_c45_update_tx_sc_secy_cfg(struct phy_device *phydev,
+ struct nxp_c45_secy *phy_secy)
+{
+ u32 cfg = 0;
+
+ nxp_c45_macsec_read(phydev, MACSEC_TXSC_CFG, &cfg);
+
+ phydev_dbg(phydev, "XPN %s\n", phy_secy->secy->xpn ? "on" : "off");
+ if (phy_secy->secy->xpn)
+ cfg |= MACSEC_TXSC_CFG_XPN;
+ else
+ cfg &= ~MACSEC_TXSC_CFG_XPN;
+
+ phydev_dbg(phydev, "key len %u\n", phy_secy->secy->key_len);
+ if (phy_secy->secy->key_len == 32)
+ cfg |= MACSEC_TXSC_CFG_AES_256;
+ else
+ cfg &= ~MACSEC_TXSC_CFG_AES_256;
+
+ phydev_dbg(phydev, "encryption %s\n",
+ phy_secy->secy->tx_sc.encrypt ? "on" : "off");
+ if (phy_secy->secy->tx_sc.encrypt)
+ cfg |= MACSEC_TXSC_CFG_ENCRYPT;
+ else
+ cfg &= ~MACSEC_TXSC_CFG_ENCRYPT;
+
+ phydev_dbg(phydev, "protect frames %s\n",
+ phy_secy->secy->protect_frames ? "on" : "off");
+ if (phy_secy->secy->protect_frames)
+ cfg |= MACSEC_TXSC_CFG_PROTECT;
+ else
+ cfg &= ~MACSEC_TXSC_CFG_PROTECT;
+
+ phydev_dbg(phydev, "send sci %s\n",
+ phy_secy->secy->tx_sc.send_sci ? "on" : "off");
+ if (phy_secy->secy->tx_sc.send_sci)
+ cfg |= MACSEC_TXSC_CFG_SEND_SCI;
+ else
+ cfg &= ~MACSEC_TXSC_CFG_SEND_SCI;
+
+ phydev_dbg(phydev, "end station %s\n",
+ phy_secy->secy->tx_sc.end_station ? "on" : "off");
+ if (phy_secy->secy->tx_sc.end_station)
+ cfg |= MACSEC_TXSC_CFG_END_STATION;
+ else
+ cfg &= ~MACSEC_TXSC_CFG_END_STATION;
+
+ phydev_dbg(phydev, "scb %s\n",
+ phy_secy->secy->tx_sc.scb ? "on" : "off");
+ if (phy_secy->secy->tx_sc.scb)
+ cfg |= MACSEC_TXSC_CFG_SCI;
+ else
+ cfg &= ~MACSEC_TXSC_CFG_SCI;
+
+ nxp_c45_macsec_write(phydev, MACSEC_TXSC_CFG, cfg);
+
+ return 0;
+}
+
+static int nxp_c45_update_rx_sc_secy_cfg(struct phy_device *phydev,
+ struct nxp_c45_secy *phy_secy)
+{
+ struct nxp_c45_rx_sc *rx_sc = phy_secy->rx_sc;
+ struct nxp_c45_phy *priv = phydev->priv;
+ u32 cfg = 0;
+
+ nxp_c45_macsec_read(phydev, MACSEC_RXSC_CFG, &cfg);
+ cfg &= ~MACSEC_RXSC_CFG_VF_MASK;
+ cfg = phy_secy->secy->validate_frames << MACSEC_RXSC_CFG_VF_OFF;
+
+ phydev_dbg(phydev, "validate frames %u\n",
+ phy_secy->secy->validate_frames);
+ phydev_dbg(phydev, "replay_protect %s window %u\n",
+ phy_secy->secy->replay_protect ? "on" : "off",
+ phy_secy->secy->replay_window);
+ if (phy_secy->secy->replay_protect) {
+ cfg |= MACSEC_RXSC_CFG_RP;
+ if (cfg & MACSEC_RXSC_CFG_SCI_EN) {
+ phydev_dbg(phydev, "RX SC enabled, window will not be updated\n");
+ } else {
+ phydev_dbg(phydev, "RX SC enabled, window will be updated\n");
+ nxp_c45_macsec_write(phydev, MACSEC_RPW,
+ phy_secy->secy->replay_window);
+ }
+ } else {
+ cfg &= ~MACSEC_RXSC_CFG_RP;
+ }
+
+ phydev_dbg(phydev, "rx_sc->active %s\n",
+ rx_sc->rx_sc->active ? "on" : "off");
+ if (rx_sc->rx_sc->active &&
+ test_bit(phy_secy->secy_id, priv->macsec->secy_bitmap))
+ cfg |= MACSEC_RXSC_CFG_SCI_EN;
+ else
+ cfg &= ~MACSEC_RXSC_CFG_SCI_EN;
+
+ phydev_dbg(phydev, "key len %u\n", phy_secy->secy->key_len);
+ if (phy_secy->secy->key_len == 32)
+ cfg |= MACSEC_RXSC_CFG_AES_256;
+ else
+ cfg &= ~MACSEC_RXSC_CFG_AES_256;
+
+ phydev_dbg(phydev, "XPN %s\n", phy_secy->secy->xpn ? "on" : "off");
+ if (phy_secy->secy->xpn)
+ cfg |= MACSEC_RXSC_CFG_XPN;
+ else
+ cfg &= ~MACSEC_RXSC_CFG_XPN;
+
+ nxp_c45_macsec_write(phydev, MACSEC_RXSC_CFG, cfg);
+ return 0;
+}
+
+static int nxp_c45_update_key_status(struct phy_device *phydev,
+ struct nxp_c45_tx_sa *tx_sa)
+{
+ bool key_a = tx_sa->is_key_a;
+ u32 cfg = 0;
+
+ nxp_c45_macsec_read(phydev, MACSEC_TXSC_CFG, &cfg);
+
+ cfg &= ~MACSEC_TXSC_CFG_AN_MASK;
+ cfg |= tx_sa->an << MACSEC_TXSC_CFG_AN_OFF;
+
+ if (!key_a)
+ cfg |= MACSEC_TXSC_CFG_ASA;
+ else
+ cfg &= ~MACSEC_TXSC_CFG_ASA;
+
+ tx_sa->is_enabled = tx_sa->tx_sa->active;
+ if (tx_sa->tx_sa->active)
+ cfg |= MACSEC_TXSC_CFG_SCE;
+ else
+ cfg &= ~MACSEC_TXSC_CFG_SCE;
+
+ nxp_c45_macsec_write(phydev, MACSEC_TXSC_CFG, cfg);
+
+ return 0;
+}
+
+static int nxp_c45_tx_sa_disable(struct phy_device *phydev,
+ struct nxp_c45_secy *phy_secy)
+{
+ u32 cfg = 0;
+
+ nxp_c45_macsec_read(phydev, MACSEC_TXSC_CFG, &cfg);
+ cfg &= ~MACSEC_TXSC_CFG_SCE;
+ nxp_c45_macsec_write(phydev, MACSEC_TXSC_CFG, cfg);
+
+ return 0;
+}
+
+static int nxp_c45_txsa_set_pn(struct phy_device *phydev,
+ struct nxp_c45_tx_sa *tx_sa)
+{
+ const struct nxp_c45_macsec_sa_regs *sa_regs;
+
+ sa_regs = nxp_c45_get_macsec_sa_regs(tx_sa->is_key_a);
+
+ nxp_c45_macsec_write(phydev, sa_regs->txsa_npn,
+ tx_sa->next_pn);
+ nxp_c45_macsec_write(phydev, sa_regs->txsa_xnpn,
+ tx_sa->next_pn >> 32);
+
+ return 0;
+}
+
+static int nxp_c45_txsa_get_pn(struct phy_device *phydev,
+ struct nxp_c45_tx_sa *tx_sa)
+{
+ const struct nxp_c45_macsec_sa_regs *sa_regs;
+ u32 reg = 0;
+
+ sa_regs = nxp_c45_get_macsec_sa_regs(tx_sa->is_key_a);
+
+ nxp_c45_macsec_read(phydev, sa_regs->txsa_npn, ®);
+ tx_sa->next_pn = reg;
+ nxp_c45_macsec_read(phydev, sa_regs->txsa_xnpn, ®);
+ tx_sa->next_pn |= (u64)reg << 32;
+
+ return 0;
+}
+
+static int nxp_c45_set_rxsa_key_cfg(struct macsec_context *ctx,
+ bool key_a, bool upd)
+{
+ const struct nxp_c45_macsec_sa_regs *sa_regs;
+ u64 npn = ctx->sa.rx_sa->next_pn;
+ u32 cfg;
+
+ sa_regs = nxp_c45_get_macsec_sa_regs(key_a);
+
+ if (npn && !upd) {
+ nxp_c45_macsec_write(ctx->phydev, sa_regs->rxsa_npn,
+ npn);
+ nxp_c45_macsec_write(ctx->phydev, sa_regs->rxsa_lnpn,
+ npn);
+ if (ctx->secy->xpn) {
+ nxp_c45_macsec_write(ctx->phydev,
+ sa_regs->rxsa_xnpn,
+ npn >> 32);
+ nxp_c45_macsec_write(ctx->phydev,
+ sa_regs->rxsa_lxnpn,
+ npn >> 32);
+ }
+ } else if (npn && upd) {
+ if (npn > ctx->secy->replay_window)
+ npn -= ctx->secy->replay_window;
+ else
+ npn = 1;
+
+ nxp_c45_macsec_write(ctx->phydev, sa_regs->rxsa_lnpn,
+ npn);
+ if (ctx->secy->xpn)
+ nxp_c45_macsec_write(ctx->phydev,
+ sa_regs->rxsa_lxnpn,
+ npn >> 32);
+ }
+
+ cfg = MACSEC_RXSA_CS_A | (ctx->sa.assoc_num << MACSEC_RXSA_CS_AN_OFF);
+ cfg |= ctx->sa.rx_sa->active ? MACSEC_RXSA_CS_EN : 0;
+ nxp_c45_macsec_write(ctx->phydev, sa_regs->rxsa_cs, cfg);
+
+ return 0;
+}
+
+static int nxp_c45_txsa_set_key(struct macsec_context *ctx,
+ struct nxp_c45_tx_sa *tx_sa)
+{
+ const struct nxp_c45_macsec_sa_regs *sa_regs;
+ u32 key_size = ctx->secy->key_len / 4;
+ u32 salt_size = MACSEC_SALT_LEN / 4;
+ u32 *salt = (u32 *)tx_sa->salt;
+ u32 *key = (u32 *)tx_sa->key;
+ u32 reg;
+ int i;
+
+ sa_regs = nxp_c45_get_macsec_sa_regs(tx_sa->is_key_a);
+
+ for (i = 0; i < key_size; i++) {
+ reg = sa_regs->txsa_ka + i * 4;
+ nxp_c45_macsec_write(ctx->phydev, reg,
+ cpu_to_be32(key[i]));
+ }
+
+ if (ctx->secy->xpn) {
+ for (i = 0; i < salt_size; i++) {
+ reg = sa_regs->txsa_salt + (2 - i) * 4;
+ nxp_c45_macsec_write(ctx->phydev, reg,
+ cpu_to_be32(salt[i]));
+ }
+
+ nxp_c45_macsec_write(ctx->phydev, sa_regs->txsa_ssci,
+ cpu_to_be32(tx_sa->tx_sa->ssci));
+ }
+
+ nxp_c45_macsec_write(ctx->phydev, sa_regs->txsa_cs,
+ MACSEC_TXSA_CS_A);
+
+ return 0;
+}
+
+static int nxp_c45_commit_rx_sc_cfg(struct phy_device *phydev,
+ struct nxp_c45_secy *phy_secy)
+{
+ struct nxp_c45_rx_sc *rx_sc = phy_secy->rx_sc;
+
+ nxp_c45_macsec_write(phydev, MACSEC_RXSC_SCI_1H,
+ cpu_to_be32((u32)(rx_sc->rx_sc->sci)));
+ nxp_c45_macsec_write(phydev, MACSEC_RXSC_SCI_2H,
+ cpu_to_be32((u32)(rx_sc->rx_sc->sci >> 32)));
+
+ return nxp_c45_update_rx_sc_secy_cfg(phydev, phy_secy);
+}
+
+static int nxp_c45_disable_rxsa_key(struct phy_device *phydev, bool key_a)
+{
+ const struct nxp_c45_macsec_sa_regs *sa_regs;
+ u32 reg = 0;
+
+ sa_regs = nxp_c45_get_macsec_sa_regs(key_a);
+
+ nxp_c45_macsec_read(phydev, sa_regs->rxsa_cs, ®);
+ reg &= ~MACSEC_RXSA_CS_EN;
+ nxp_c45_macsec_write(phydev, sa_regs->rxsa_cs, reg);
+
+ return 0;
+}
+
+static void nxp_c45_clear_dev_stats(struct phy_device *phydev,
+ struct nxp_c45_secy *phy_secy)
+{
+ nxp_c45_macsec_write(phydev, MACSEC_OPUS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_OPTLS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_OOE1HS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_OOE2HS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_TXSAAOPES, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_TXSABOPES, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_TXSAAOPPS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_TXSABOPPS, 0);
+
+ if (phy_secy->rx_sc) {
+ nxp_c45_macsec_write(phydev, MACSEC_INPBTS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_INPWTS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_IPSNFS, 0);
+ }
+}
+
+static void nxp_c45_clear_rx_sc_stats(struct phy_device *phydev)
+{
+ int i;
+
+ nxp_c45_macsec_write(phydev, MACSEC_RXSAAIPIS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSAAIPNVS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSAAIPOS, 0);
+
+ nxp_c45_macsec_write(phydev, MACSEC_RXSABIPIS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSABIPNVS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSABIPOS, 0);
+
+ nxp_c45_macsec_write(phydev, MACSEC_INOD1HS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_INOD2HS, 0);
+
+ nxp_c45_macsec_write(phydev, MACSEC_INOV1HS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_INOV2HS, 0);
+
+ nxp_c45_macsec_write(phydev, MACSEC_RXSCIPDS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSCIPLS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSCIPUS, 0);
+
+ for (i = 0; i < MACSEC_NUM_AN; i++)
+ nxp_c45_macsec_write(phydev, MACSEC_RXAN0INUSS + i * 4, 0);
+
+ for (i = 0; i < MACSEC_NUM_AN; i++)
+ nxp_c45_macsec_write(phydev, MACSEC_RXAN0IPUSS + i * 4, 0);
+}
+
+static void nxp_c45_clear_rx_sa_stats(struct phy_device *phydev,
+ u8 an, bool is_key_a)
+{
+ if (is_key_a) {
+ nxp_c45_macsec_write(phydev, MACSEC_RXSAAIPIS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSAAIPNVS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSAAIPOS, 0);
+ } else {
+ nxp_c45_macsec_write(phydev, MACSEC_RXSABIPIS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSABIPNVS, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSABIPOS, 0);
+ }
+
+ nxp_c45_macsec_write(phydev, MACSEC_RXAN0INUSS + an * 4, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXAN0IPUSS + an * 4, 0);
+}
+
+static int nxp_c45_rx_sc_del(struct phy_device *phydev,
+ struct nxp_c45_rx_sc *rx_sc)
+{
+ nxp_c45_macsec_write(phydev, MACSEC_RXSC_CFG, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSC_SCI_1H, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RXSC_SCI_2H, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_RPW, 0);
+
+ if (rx_sc->rx_sa_a)
+ nxp_c45_disable_rxsa_key(phydev, true);
+
+ if (rx_sc->rx_sa_b)
+ nxp_c45_disable_rxsa_key(phydev, false);
+
+ nxp_c45_clear_rx_sc_stats(phydev);
+
+ return 0;
+}
+
+static int nxp_c45_set_rxsa_key(struct macsec_context *ctx, bool key_a)
+{
+ u32 *salt = (u32 *)ctx->sa.rx_sa->key.salt.bytes;
+ const struct nxp_c45_macsec_sa_regs *sa_regs;
+ u32 key_size = ctx->secy->key_len / 4;
+ u32 salt_size = MACSEC_SALT_LEN / 4;
+ u32 *key = (u32 *)ctx->sa.key;
+ u32 reg;
+ int i;
+
+ sa_regs = nxp_c45_get_macsec_sa_regs(key_a);
+
+ for (i = 0; i < key_size; i++) {
+ reg = sa_regs->rxsa_ka + i * 4;
+ nxp_c45_macsec_write(ctx->phydev, reg,
+ cpu_to_be32(key[i]));
+ }
+
+ if (ctx->secy->xpn) {
+ for (i = 0; i < salt_size; i++) {
+ reg = sa_regs->rxsa_salt + (2 - i) * 4;
+ nxp_c45_macsec_write(ctx->phydev, reg,
+ cpu_to_be32(salt[i]));
+ }
+ nxp_c45_macsec_write(ctx->phydev, sa_regs->rxsa_ssci,
+ cpu_to_be32(ctx->sa.rx_sa->ssci));
+ }
+
+ nxp_c45_set_rxsa_key_cfg(ctx, key_a, false);
+
+ return 0;
+}
+
+static void nxp_c45_tx_sc_clear(struct nxp_c45_secy *phy_secy)
+{
+ struct nxp_c45_tx_sa **tx_sa;
+ u8 i;
+
+ tx_sa = phy_secy->tx_sa;
+ for (i = 0; i < ARRAY_SIZE(phy_secy->tx_sa); i++) {
+ kfree(tx_sa[i]);
+ tx_sa[i] = NULL;
+ }
+}
+
+static void nxp_c45_tx_sa_stats_read(struct phy_device *phydev,
+ struct nxp_c45_tx_sa *tx_sa,
+ struct macsec_tx_sa_stats *stats)
+{
+ u32 reg = 0;
+
+ if (tx_sa->is_key_a) {
+ nxp_c45_macsec_read(phydev, MACSEC_TXSAAOPES, ®);
+ stats->OutPktsEncrypted = reg;
+ nxp_c45_macsec_read(phydev, MACSEC_TXSAAOPPS, ®);
+ stats->OutPktsProtected = reg;
+ } else {
+ nxp_c45_macsec_read(phydev, MACSEC_TXSABOPES, ®);
+ stats->OutPktsEncrypted = reg;
+ nxp_c45_macsec_read(phydev, MACSEC_TXSABOPPS, ®);
+ stats->OutPktsProtected = reg;
+ }
+}
+
+static void nxp_c45_tx_sa_stats_clear(struct phy_device *phydev,
+ struct nxp_c45_tx_sa *tx_sa)
+{
+ if (tx_sa->is_key_a) {
+ nxp_c45_macsec_write(phydev, MACSEC_TXSAAOPES, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_TXSAAOPPS, 0);
+ } else {
+ nxp_c45_macsec_write(phydev, MACSEC_TXSABOPES, 0);
+ nxp_c45_macsec_write(phydev, MACSEC_TXSABOPPS, 0);
+ }
+}
+
+static void nxp_c45_tx_sa_stats_backup(struct phy_device *phydev,
+ struct nxp_c45_tx_sa *tx_sa)
+{
+ struct macsec_tx_sa_stats stats;
+
+ nxp_c45_tx_sa_stats_read(phydev, tx_sa, &stats);
+ tx_sa->stats.OutPktsEncrypted += stats.OutPktsEncrypted;
+ tx_sa->stats.OutPktsProtected += stats.OutPktsProtected;
+ nxp_c45_tx_sa_stats_clear(phydev, tx_sa);
+}
+
+static int nxp_c45_mdo_add_secy(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct nxp_c45_secy *phy_secy;
+ bool can_ptp;
+ int idx;
+ u32 reg;
+
+ phydev_dbg(ctx->phydev, "add secy SCI %llu\n", ctx->secy->sci);
+
+ if (!nxp_c45_mac_addr_free(ctx))
+ return -EBUSY;
+
+ if (nxp_c45_is_macsec_ptp_enabled(&priv->macsec->secy_list))
+ return -EBUSY;
+
+ idx = find_first_zero_bit(priv->macsec->tx_sc_bitmap, TX_SC_MAX);
+ if (idx == TX_SC_MAX)
+ return -EBUSY;
+
+ phy_secy = kzalloc(sizeof(*phy_secy), GFP_KERNEL);
+ if (!phy_secy)
+ return -ENOMEM;
+
+ phy_secy->secy = ctx->secy;
+ phy_secy->secy_id = idx;
+ phy_secy->enabled_an = ctx->secy->tx_sc.encoding_sa;
+ phy_secy->tx_sa_key_a = true;
+
+ /* If the point to point mode should be enabled, we should have only
+ * one secy enabled, respectively the new one.
+ */
+ can_ptp = list_count_nodes(&priv->macsec->secy_list) == 0;
+ if (!nxp_c45_secy_cfg_valid(phy_secy, can_ptp)) {
+ kfree(phy_secy);
+ return -EINVAL;
+ }
+
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+ nxp_c45_macsec_write(phydev, MACSEC_TXSC_SCI_1H,
+ cpu_to_be32((u32)ctx->secy->sci));
+ nxp_c45_macsec_write(phydev, MACSEC_TXSC_SCI_2H,
+ cpu_to_be32((u32)(ctx->secy->sci >> 32)));
+ nxp_c45_tx_sc_set_flt(ctx, phy_secy->secy_id);
+ nxp_c45_update_tx_sc_secy_cfg(phydev, phy_secy);
+ if (phy_interrupt_is_valid(phydev)) {
+ nxp_c45_macsec_read(phydev, MACSEC_EVER, ®);
+ reg |= TX_SC_BIT(phy_secy->secy_id);
+ nxp_c45_macsec_write(phydev, MACSEC_EVER, reg);
+ }
+ set_bit(idx, priv->macsec->tx_sc_bitmap);
+ list_add_tail(&phy_secy->list, &priv->macsec->secy_list);
+
+ return 0;
+}
+
+static int nxp_c45_mdo_upd_secy(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct nxp_c45_tx_sa *new_tx_sa, *old_tx_sa;
+ struct nxp_c45_secy *phy_secy;
+ bool can_ptp;
+
+ phydev_dbg(phydev, "update secy SCI %llu\n", ctx->secy->sci);
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ if (!nxp_c45_mac_addr_free(ctx))
+ return -EBUSY;
+
+ /* If the point to point mode should be enabled, we should have only
+ * one secy enabled, respectively the new one.
+ */
+ can_ptp = list_count_nodes(&priv->macsec->secy_list) == 1;
+ if (!nxp_c45_secy_cfg_valid(phy_secy, can_ptp))
+ return -EINVAL;
+
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+
+ nxp_c45_tx_sc_set_flt(ctx, phy_secy->secy_id);
+ nxp_c45_update_tx_sc_secy_cfg(phydev, phy_secy);
+
+ if (phy_secy->enabled_an != ctx->secy->tx_sc.encoding_sa) {
+ old_tx_sa = phy_secy->tx_sa[phy_secy->enabled_an];
+ phy_secy->enabled_an = ctx->secy->tx_sc.encoding_sa;
+ new_tx_sa = phy_secy->tx_sa[phy_secy->enabled_an];
+ if (!new_tx_sa) {
+ nxp_c45_tx_sa_disable(phydev, phy_secy);
+ goto disable_old_tx_sa;
+ }
+
+ if (!new_tx_sa->tx_sa->active) {
+ nxp_c45_tx_sa_disable(phydev, phy_secy);
+ goto disable_old_tx_sa;
+ }
+
+ new_tx_sa->is_key_a = phy_secy->tx_sa_key_a;
+ phy_secy->tx_sa_key_a = phy_secy->tx_sa_key_a;
+ nxp_c45_txsa_set_key(ctx, new_tx_sa);
+ nxp_c45_txsa_set_pn(phydev, new_tx_sa);
+ nxp_c45_update_key_status(phydev, new_tx_sa);
+
+disable_old_tx_sa:
+ if (old_tx_sa) {
+ old_tx_sa->is_enabled = false;
+ nxp_c45_txsa_get_pn(phydev, old_tx_sa);
+ nxp_c45_tx_sa_stats_backup(phydev, old_tx_sa);
+ }
+ }
+
+ if (test_bit(phy_secy->secy_id, priv->macsec->secy_bitmap))
+ nxp_c45_macsec_cfg_ptp(phydev, phy_secy->point_to_point);
+
+ if (phy_secy->rx_sc)
+ nxp_c45_update_rx_sc_secy_cfg(phydev, phy_secy);
+
+ return 0;
+}
+
+static int nxp_c45_mdo_del_secy(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct nxp_c45_secy *phy_secy;
+ u32 reg;
+ int i;
+
+ phydev_dbg(phydev, "delete secy SCI %llu\n", ctx->secy->sci);
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+
+ nxp_c45_mdo_dev_stop(ctx);
+ nxp_c45_tx_sa_disable(phydev, phy_secy);
+ nxp_c45_tx_sc_clear(phy_secy);
+ nxp_c45_clear_dev_stats(phydev, phy_secy);
+ if (phy_secy->rx_sc) {
+ nxp_c45_rx_sc_del(phydev, phy_secy->rx_sc);
+ kfree(phy_secy->rx_sc);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(phy_secy->tx_sa); i++)
+ if (phy_secy->tx_sa[i] && phy_secy->tx_sa[i]->is_enabled)
+ nxp_c45_tx_sa_stats_clear(phydev,
+ phy_secy->tx_sa[i]);
+
+ if (phy_interrupt_is_valid(phydev)) {
+ nxp_c45_macsec_read(phydev, MACSEC_EVER, ®);
+ reg &= ~TX_SC_BIT(phy_secy->secy_id);
+ nxp_c45_macsec_write(phydev, MACSEC_EVER, reg);
+ }
+
+ clear_bit(phy_secy->secy_id, priv->macsec->tx_sc_bitmap);
+ list_del(&phy_secy->list);
+ kfree(phy_secy);
+
+ return 0;
+}
+
+static int nxp_c45_mdo_add_rxsc(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_rx_sc *rx_sc;
+
+ phydev_dbg(phydev, "add RX SC %s\n",
+ ctx->rx_sc->active ? "enabled" : "disabled");
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ if (phy_secy->rx_sc)
+ return -ENOMEM;
+
+ if (!nxp_c45_rx_sc_valid(phy_secy, ctx->rx_sc))
+ return -EINVAL;
+
+ rx_sc = kzalloc(sizeof(*rx_sc), GFP_KERNEL);
+ if (!rx_sc)
+ return -ENOMEM;
+
+ phy_secy->rx_sc = rx_sc;
+ rx_sc->rx_sc = ctx->rx_sc;
+
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+ nxp_c45_commit_rx_sc_cfg(phydev, phy_secy);
+
+ return 0;
+}
+
+static int nxp_c45_mdo_upd_rxsc(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_rx_sc *rx_sc;
+
+ phydev_dbg(phydev, "update RX SC %llu %s\n", ctx->rx_sc->sci,
+ ctx->rx_sc->active ? "enabled" : "disabled");
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ rx_sc = phy_secy->rx_sc;
+ if (rx_sc->rx_sc != ctx->rx_sc)
+ return -EINVAL;
+
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+ nxp_c45_commit_rx_sc_cfg(phydev, phy_secy);
+
+ return 0;
+}
+
+static int nxp_c45_mdo_del_rxsc(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_rx_sc *rx_sc;
+
+ phydev_dbg(phydev, "delete RX SC %llu %s\n", ctx->rx_sc->sci,
+ ctx->rx_sc->active ? "enabled" : "disabled");
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ rx_sc = phy_secy->rx_sc;
+ if (rx_sc->rx_sc != ctx->rx_sc)
+ return -EINVAL;
+
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+ nxp_c45_rx_sc_del(phydev, rx_sc);
+ kfree(rx_sc);
+ phy_secy->rx_sc = NULL;
+
+ return 0;
+}
+
+static int nxp_c45_mdo_add_rxsa(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_rx_sc *rx_sc;
+ struct macsec_rx_sa *rx_sa;
+ u8 an = ctx->sa.assoc_num;
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ rx_sc = phy_secy->rx_sc;
+ if (rx_sc->rx_sc != ctx->sa.rx_sa->sc)
+ return -EINVAL;
+
+ rx_sa = ctx->sa.rx_sa;
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+ if (!rx_sc->rx_sa_a) {
+ phydev_dbg(phydev, "add RX SA A %u %s\n",
+ an, rx_sa->active ? "enabled" : "disabled");
+ nxp_c45_set_rxsa_key(ctx, true);
+ rx_sc->rx_sa_a = rx_sa;
+ return 0;
+ }
+
+ if (!rx_sc->rx_sa_b) {
+ phydev_dbg(phydev, "add RX SA B %u %s\n",
+ an, rx_sa->active ? "enabled" : "disabled");
+ nxp_c45_set_rxsa_key(ctx, false);
+ rx_sc->rx_sa_b = rx_sa;
+ return 0;
+ }
+
+ return -ENOMEM;
+}
+
+static int nxp_c45_mdo_upd_rxsa(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_rx_sc *rx_sc;
+ struct macsec_rx_sa *rx_sa;
+ u8 an = ctx->sa.assoc_num;
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ rx_sc = phy_secy->rx_sc;
+ if (rx_sc->rx_sc != ctx->sa.rx_sa->sc)
+ return -EINVAL;
+
+ rx_sa = ctx->sa.rx_sa;
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+ if (rx_sc->rx_sa_a == rx_sa) {
+ phydev_dbg(phydev, "update RX SA A %u %s\n",
+ an, rx_sa->active ? "enabled" : "disabled");
+ nxp_c45_set_rxsa_key_cfg(ctx, true, true);
+ return 0;
+ }
+
+ if (rx_sc->rx_sa_b == rx_sa) {
+ phydev_dbg(phydev, "update RX SA B %u %s\n",
+ an, rx_sa->active ? "enabled" : "disabled");
+ nxp_c45_set_rxsa_key_cfg(ctx, false, true);
+ return 0;
+ }
+
+ return -ENOENT;
+}
+
+static int nxp_c45_mdo_del_rxsa(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_rx_sc *rx_sc;
+ struct macsec_rx_sa *rx_sa;
+ u8 an = ctx->sa.assoc_num;
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ rx_sc = phy_secy->rx_sc;
+ if (rx_sc->rx_sc != ctx->sa.rx_sa->sc)
+ return -EINVAL;
+
+ rx_sa = ctx->sa.rx_sa;
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+ if (rx_sc->rx_sa_a == rx_sa) {
+ phydev_dbg(phydev, "delete RX SA A %u %s\n",
+ an, rx_sa->active ? "enabled" : "disabled");
+ nxp_c45_disable_rxsa_key(phydev, true);
+ nxp_c45_clear_rx_sa_stats(phydev, an, true);
+ rx_sc->rx_sa_a = NULL;
+ return 0;
+ }
+
+ if (rx_sc->rx_sa_b == rx_sa) {
+ phydev_dbg(phydev, "delete RX SA B %u %s\n",
+ an, rx_sa->active ? "enabled" : "disabled");
+ nxp_c45_disable_rxsa_key(phydev, false);
+ nxp_c45_clear_rx_sa_stats(phydev, an, false);
+ rx_sc->rx_sa_b = NULL;
+ return 0;
+ }
+
+ return -ENOENT;
+}
+
+static int nxp_c45_mdo_add_txsa(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_tx_sa *tx_sa;
+ u8 sa = ctx->sa.assoc_num;
+
+ phydev_dbg(phydev, "add TX SA %u %s\n", ctx->sa.assoc_num,
+ ctx->sa.tx_sa->active ? "enabled" : "disabled");
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ if (phy_secy->tx_sa[sa])
+ return -EBUSY;
+
+ tx_sa = kzalloc(sizeof(*tx_sa), GFP_KERNEL);
+ tx_sa->an = ctx->sa.assoc_num;
+ memcpy(tx_sa->key, ctx->sa.key, MACSEC_MAX_KEY_LEN);
+ memcpy(tx_sa->salt, ctx->sa.tx_sa->key.salt.bytes, MACSEC_SALT_LEN);
+ tx_sa->tx_sa = ctx->sa.tx_sa;
+ tx_sa->next_pn = ctx->sa.tx_sa->next_pn;
+ phy_secy->tx_sa[sa] = tx_sa;
+
+ if (tx_sa->an == phy_secy->enabled_an && tx_sa->tx_sa->active) {
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+ tx_sa->is_key_a = phy_secy->tx_sa_key_a;
+ phy_secy->tx_sa_key_a = !phy_secy->tx_sa_key_a;
+ nxp_c45_txsa_set_key(ctx, tx_sa);
+ nxp_c45_txsa_set_pn(phydev, tx_sa);
+ nxp_c45_update_key_status(phydev, tx_sa);
+ }
+
+ return 0;
+}
+
+static int nxp_c45_mdo_upd_txsa(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ u64 next_pn = ctx->sa.tx_sa->next_pn;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_tx_sa *tx_sa;
+ u8 sa = ctx->sa.assoc_num;
+
+ phydev_dbg(phydev, "update TX SA %u %s\n", ctx->sa.assoc_num,
+ ctx->sa.tx_sa->active ? "enabled" : "disabled");
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ tx_sa = phy_secy->tx_sa[sa];
+ if (!tx_sa)
+ return -EINVAL;
+
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+
+ if (tx_sa->is_enabled && tx_sa->tx_sa->active &&
+ next_pn) {
+ tx_sa->next_pn = next_pn;
+ nxp_c45_txsa_set_pn(phydev, tx_sa);
+
+ return 0;
+ }
+
+ if (tx_sa->is_enabled && !tx_sa->tx_sa->active) {
+ if (next_pn)
+ tx_sa->next_pn = next_pn;
+ else
+ nxp_c45_txsa_get_pn(phydev, tx_sa);
+
+ nxp_c45_update_key_status(phydev, tx_sa);
+
+ return 0;
+ }
+
+ if (!tx_sa->is_enabled && tx_sa->tx_sa->active &&
+ tx_sa->an == phy_secy->enabled_an) {
+ if (next_pn)
+ tx_sa->next_pn = next_pn;
+
+ tx_sa->is_key_a = phy_secy->tx_sa_key_a;
+ phy_secy->tx_sa_key_a = !phy_secy->tx_sa_key_a;
+ nxp_c45_txsa_set_key(ctx, tx_sa);
+ nxp_c45_txsa_set_pn(phydev, tx_sa);
+ nxp_c45_update_key_status(phydev, tx_sa);
+
+ return 0;
+ }
+
+ if (!tx_sa->is_enabled && !tx_sa->tx_sa->active)
+ tx_sa->next_pn = next_pn;
+
+ return 0;
+}
+
+static int nxp_c45_mdo_del_txsa(struct macsec_context *ctx)
+{
+ struct macsec_tx_sa *ctx_sa = ctx->sa.tx_sa;
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_tx_sa *tx_sa;
+ u8 sa = ctx->sa.assoc_num;
+
+ phydev_dbg(phydev, "delete TX SA %u %s\n", sa,
+ ctx_sa->active ? "enabled" : "disabled");
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ tx_sa = phy_secy->tx_sa[sa];
+ if (!tx_sa)
+ return -EINVAL;
+
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+
+ if (tx_sa->is_enabled) {
+ nxp_c45_update_key_status(phydev, tx_sa);
+ nxp_c45_tx_sa_stats_clear(phydev, tx_sa);
+ }
+
+ phy_secy->tx_sa[sa] = NULL;
+ kfree(tx_sa);
+
+ return 0;
+}
+
+static int nxp_c45_mdo_get_dev_stats(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct macsec_dev_stats *dev_stats;
+ struct nxp_c45_secy *phy_secy;
+ u32 reg = 0;
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ dev_stats = ctx->stats.dev_stats;
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+
+ nxp_c45_macsec_read(phydev, MACSEC_OPUS, ®);
+ dev_stats->OutPktsUntagged = reg;
+ nxp_c45_macsec_read(phydev, MACSEC_OPTLS, ®);
+ dev_stats->OutPktsTooLong = reg;
+
+ dev_stats->InPktsUntagged = 0;
+ dev_stats->InPktsNoTag = 0;
+ dev_stats->InPktsBadTag = 0;
+ dev_stats->InPktsUnknownSCI = 0;
+ dev_stats->InPktsNoSCI = 0;
+
+ if (phy_secy->rx_sc) {
+ nxp_c45_macsec_read(phydev, MACSEC_INPBTS, ®);
+ dev_stats->InPktsBadTag = reg;
+
+ nxp_c45_macsec_read(phydev, MACSEC_INPWTS, ®);
+ if (phy_secy->secy->validate_frames == MACSEC_VALIDATE_STRICT)
+ dev_stats->InPktsNoTag += reg;
+ else
+ dev_stats->InPktsUntagged += reg;
+
+ nxp_c45_macsec_read(phydev, MACSEC_IPSNFS, ®);
+ if (phy_secy->secy->validate_frames == MACSEC_VALIDATE_STRICT)
+ dev_stats->InPktsNoSCI += reg;
+ else
+ dev_stats->InPktsUnknownSCI += reg;
+ }
+
+ /* Always 0. */
+ dev_stats->InPktsOverrun = 0;
+
+ return 0;
+}
+
+static int nxp_c45_mdo_get_tx_sc_stats(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct macsec_tx_sc_stats *tx_sc_stats;
+ struct macsec_tx_sa_stats tx_sa_stats;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_tx_sa *tx_sa;
+ u32 reg = 0;
+ u64 stat;
+ int i;
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ tx_sc_stats = ctx->stats.tx_sc_stats;
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+
+ nxp_c45_macsec_read(phydev, MACSEC_OOE1HS, ®);
+ stat = (u64)reg << 32;
+ nxp_c45_macsec_read(phydev, MACSEC_OOE2HS, ®);
+ stat |= reg;
+ if (ctx->secy->tx_sc.encrypt)
+ tx_sc_stats->OutOctetsEncrypted = stat;
+ else
+ tx_sc_stats->OutOctetsEncrypted = 0;
+
+ if (ctx->secy->protect_frames)
+ tx_sc_stats->OutOctetsProtected = stat;
+ else
+ tx_sc_stats->OutOctetsProtected = 0;
+
+ tx_sc_stats->OutPktsEncrypted = 0;
+ tx_sc_stats->OutPktsProtected = 0;
+
+ for (i = 0; i < ARRAY_SIZE(phy_secy->tx_sa); i++) {
+ tx_sa = phy_secy->tx_sa[i];
+ if (!tx_sa)
+ continue;
+
+ if (tx_sa->is_enabled) {
+ nxp_c45_tx_sa_stats_read(phydev, tx_sa, &tx_sa_stats);
+ tx_sc_stats->OutPktsEncrypted +=
+ tx_sa_stats.OutPktsEncrypted;
+ tx_sc_stats->OutPktsProtected +=
+ tx_sa_stats.OutPktsProtected;
+ continue;
+ }
+
+ tx_sc_stats->OutPktsEncrypted += tx_sa->stats.OutPktsEncrypted;
+ tx_sc_stats->OutPktsProtected += tx_sa->stats.OutPktsProtected;
+ }
+
+ return 0;
+}
+
+static int nxp_c45_mdo_get_tx_sa_stats(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct macsec_tx_sa_stats *tx_sa_stats;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_tx_sa *tx_sa;
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ tx_sa = phy_secy->tx_sa[ctx->sa.assoc_num];
+ if (!tx_sa)
+ return -EINVAL;
+
+ tx_sa_stats = ctx->stats.tx_sa_stats;
+
+ if (!tx_sa->is_enabled) {
+ tx_sa_stats->OutPktsEncrypted =
+ tx_sa->stats.OutPktsEncrypted;
+ tx_sa_stats->OutPktsProtected =
+ tx_sa->stats.OutPktsProtected;
+ return 0;
+ }
+
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+ nxp_c45_tx_sa_stats_read(phydev, tx_sa, tx_sa_stats);
+
+ return 0;
+}
+
+static int nxp_c45_mdo_get_rx_sc_stats(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct macsec_rx_sc_stats *rx_sc_stats;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_rx_sc *rx_sc;
+ u32 reg = 0;
+ int i;
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ rx_sc = phy_secy->rx_sc;
+ if (rx_sc->rx_sc != ctx->rx_sc)
+ return -EINVAL;
+
+ rx_sc_stats = ctx->stats.rx_sc_stats;
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+
+ rx_sc_stats->InPktsInvalid = 0;
+ rx_sc_stats->InPktsNotValid = 0;
+ rx_sc_stats->InPktsOK = 0;
+
+ if (rx_sc->rx_sa_a) {
+ nxp_c45_macsec_read(phydev, MACSEC_RXSAAIPIS, ®);
+ rx_sc_stats->InPktsInvalid += reg;
+ nxp_c45_macsec_read(phydev, MACSEC_RXSAAIPNVS, ®);
+ rx_sc_stats->InPktsNotValid += reg;
+ nxp_c45_macsec_read(phydev, MACSEC_RXSAAIPOS, ®);
+ rx_sc_stats->InPktsOK += reg;
+ }
+
+ if (rx_sc->rx_sa_b) {
+ nxp_c45_macsec_read(phydev, MACSEC_RXSABIPIS, ®);
+ rx_sc_stats->InPktsInvalid += reg;
+ nxp_c45_macsec_read(phydev, MACSEC_RXSABIPNVS, ®);
+ rx_sc_stats->InPktsNotValid += reg;
+ nxp_c45_macsec_read(phydev, MACSEC_RXSABIPOS, ®);
+ rx_sc_stats->InPktsOK += reg;
+ }
+
+ ctx->stats.rx_sa_stats->InPktsNotUsingSA = 0;
+ for (i = 0; i < MACSEC_NUM_AN; i++) {
+ nxp_c45_macsec_read(phydev, MACSEC_RXAN0INUSS + i * 4, ®);
+ rx_sc_stats->InPktsNotUsingSA += reg;
+ }
+
+ ctx->stats.rx_sa_stats->InPktsUnusedSA = 0;
+ for (i = 0; i < MACSEC_NUM_AN; i++) {
+ nxp_c45_macsec_read(phydev, MACSEC_RXAN0IPUSS + i * 4, ®);
+ rx_sc_stats->InPktsUnusedSA += reg;
+ }
+
+ nxp_c45_macsec_read(phydev, MACSEC_INOD1HS, ®);
+ rx_sc_stats->InOctetsDecrypted = (u64)reg << 32;
+ nxp_c45_macsec_read(phydev, MACSEC_INOD2HS, ®);
+ rx_sc_stats->InOctetsDecrypted |= reg;
+
+ nxp_c45_macsec_read(phydev, MACSEC_INOV1HS, ®);
+ rx_sc_stats->InOctetsValidated = (u64)reg << 32;
+ nxp_c45_macsec_read(phydev, MACSEC_INOV2HS, ®);
+ rx_sc_stats->InOctetsValidated |= reg;
+
+ nxp_c45_macsec_read(phydev, MACSEC_RXSCIPDS, ®);
+ rx_sc_stats->InPktsDelayed = reg;
+ nxp_c45_macsec_read(phydev, MACSEC_RXSCIPLS, ®);
+ rx_sc_stats->InPktsLate = reg;
+ nxp_c45_macsec_read(phydev, MACSEC_RXSCIPUS, ®);
+ rx_sc_stats->InPktsUnchecked = reg;
+
+ return 0;
+}
+
+static int nxp_c45_mdo_get_rx_sa_stats(struct macsec_context *ctx)
+{
+ struct phy_device *phydev = ctx->phydev;
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct macsec_rx_sa_stats *rx_sa_stats;
+ struct nxp_c45_secy *phy_secy;
+ struct nxp_c45_rx_sc *rx_sc;
+ u8 an = ctx->sa.assoc_num;
+ u32 reg = 0;
+
+ phy_secy = nxp_c45_find_secy(&priv->macsec->secy_list, ctx->secy->sci);
+ if (IS_ERR(phy_secy))
+ return PTR_ERR(phy_secy);
+
+ rx_sc = phy_secy->rx_sc;
+ if (rx_sc->rx_sc != ctx->sa.rx_sa->sc)
+ return -EINVAL;
+
+ if (!rx_sc->rx_sa_a && !rx_sc->rx_sa_b)
+ return -EINVAL;
+
+ rx_sa_stats = ctx->stats.rx_sa_stats;
+ nxp_c45_select_secy(phydev, phy_secy->secy_id);
+
+ if (rx_sc->rx_sa_a == ctx->sa.rx_sa) {
+ nxp_c45_macsec_read(phydev, MACSEC_RXSAAIPIS, ®);
+ rx_sa_stats->InPktsInvalid = reg;
+ nxp_c45_macsec_read(phydev, MACSEC_RXSAAIPNVS, ®);
+ rx_sa_stats->InPktsNotValid = reg;
+ nxp_c45_macsec_read(phydev, MACSEC_RXSAAIPOS, ®);
+ rx_sa_stats->InPktsOK = reg;
+ }
+
+ if (rx_sc->rx_sa_b == ctx->sa.rx_sa) {
+ nxp_c45_macsec_read(phydev, MACSEC_RXSABIPIS, ®);
+ rx_sa_stats->InPktsInvalid = reg;
+ nxp_c45_macsec_read(phydev, MACSEC_RXSABIPNVS, ®);
+ rx_sa_stats->InPktsNotValid = reg;
+ nxp_c45_macsec_read(phydev, MACSEC_RXSABIPOS, ®);
+ rx_sa_stats->InPktsOK = reg;
+ }
+
+ nxp_c45_macsec_read(phydev, MACSEC_RXAN0INUSS + an * 4, ®);
+ rx_sa_stats->InPktsNotUsingSA = reg;
+ nxp_c45_macsec_read(phydev, MACSEC_RXAN0IPUSS + an * 4, ®);
+ rx_sa_stats->InPktsUnusedSA = reg;
+
+ return 0;
+}
+
+static const struct macsec_ops nxp_c45_macsec_ops = {
+ .mdo_dev_open = nxp_c45_mdo_dev_open,
+ .mdo_dev_stop = nxp_c45_mdo_dev_stop,
+ .mdo_add_secy = nxp_c45_mdo_add_secy,
+ .mdo_upd_secy = nxp_c45_mdo_upd_secy,
+ .mdo_del_secy = nxp_c45_mdo_del_secy,
+ .mdo_add_rxsc = nxp_c45_mdo_add_rxsc,
+ .mdo_upd_rxsc = nxp_c45_mdo_upd_rxsc,
+ .mdo_del_rxsc = nxp_c45_mdo_del_rxsc,
+ .mdo_add_rxsa = nxp_c45_mdo_add_rxsa,
+ .mdo_upd_rxsa = nxp_c45_mdo_upd_rxsa,
+ .mdo_del_rxsa = nxp_c45_mdo_del_rxsa,
+ .mdo_add_txsa = nxp_c45_mdo_add_txsa,
+ .mdo_upd_txsa = nxp_c45_mdo_upd_txsa,
+ .mdo_del_txsa = nxp_c45_mdo_del_txsa,
+ .mdo_get_dev_stats = nxp_c45_mdo_get_dev_stats,
+ .mdo_get_tx_sc_stats = nxp_c45_mdo_get_tx_sc_stats,
+ .mdo_get_tx_sa_stats = nxp_c45_mdo_get_tx_sa_stats,
+ .mdo_get_rx_sc_stats = nxp_c45_mdo_get_rx_sc_stats,
+ .mdo_get_rx_sa_stats = nxp_c45_mdo_get_rx_sa_stats,
+};
+
+int nxp_c45_macsec_probe(struct phy_device *phydev)
+{
+ struct nxp_c45_phy *priv = phydev->priv;
+
+ priv->macsec = kzalloc(sizeof(*priv->macsec), GFP_KERNEL);
+ if (!priv->macsec)
+ return -ENOMEM;
+
+ INIT_LIST_HEAD(&priv->macsec->secy_list);
+ phydev->macsec_ops = &nxp_c45_macsec_ops;
+
+ return 0;
+}
+
+void nxp_c45_handle_macsec_interrupt(struct phy_device *phydev,
+ irqreturn_t *ret)
+{
+ struct nxp_c45_phy *priv = phydev->priv;
+ struct nxp_c45_secy *pos, *tmp;
+ struct nxp_c45_tx_sa *tx_sa;
+ int secy_id;
+ u32 reg = 0;
+
+ if (!phydev->macsec_ops)
+ return;
+
+ do {
+ nxp_c45_macsec_read(phydev, MACSEC_EVR, ®);
+ if (!reg)
+ return;
+
+ secy_id = MACSEC_REG_SIZE - ffs(reg);
+ list_for_each_entry_safe(pos, tmp, &priv->macsec->secy_list, list)
+ if (pos->secy_id == secy_id)
+ break;
+
+ phydev_dbg(phydev, "pn_wrapped: tx sc %d, tx sa an %u\n",
+ pos->secy_id, pos->enabled_an);
+ tx_sa = pos->tx_sa[pos->enabled_an];
+ macsec_pn_wrapped(pos->secy, tx_sa->tx_sa);
+ nxp_c45_macsec_write(phydev, MACSEC_EVR,
+ TX_SC_BIT(pos->secy_id));
+ *ret = IRQ_HANDLED;
+ } while (reg);
+}
diff --git a/drivers/net/phy/nxp-c45-tja11xx.c b/drivers/net/phy/nxp-c45-tja11xx.c
index 7ab080ff02df..5bf7caa4e63d 100644
--- a/drivers/net/phy/nxp-c45-tja11xx.c
+++ b/drivers/net/phy/nxp-c45-tja11xx.c
@@ -14,9 +14,10 @@
#include <linux/processor.h>
#include <linux/property.h>
#include <linux/ptp_classify.h>
-#include <linux/ptp_clock_kernel.h>
#include <linux/net_tstamp.h>
+#include "nxp-c45-tja11xx.h"
+
#define PHY_ID_TJA_1103 0x001BB010
#define PHY_ID_TJA_1120 0x001BB031
@@ -75,9 +76,11 @@
#define PORT_CONTROL_EN BIT(14)
#define VEND1_PORT_ABILITIES 0x8046
+#define MACSEC_ABILITY BIT(5)
#define PTP_ABILITY BIT(3)
#define VEND1_PORT_FUNC_IRQ_EN 0x807A
+#define MACSEC_IRQS BIT(5)
#define PTP_IRQS BIT(3)
#define VEND1_PTP_IRQ_ACK 0x9008
@@ -148,7 +151,6 @@
#define TS_SEC_MASK GENMASK(1, 0)
-#define VEND1_PORT_FUNC_ENABLES 0x8048
#define PTP_ENABLE BIT(3)
#define PHY_TEST_ENABLE BIT(0)
@@ -281,25 +283,6 @@ struct nxp_c45_phy_data {
irqreturn_t *irq_status);
};
-struct nxp_c45_phy {
- const struct nxp_c45_phy_data *phy_data;
- struct phy_device *phydev;
- struct mii_timestamper mii_ts;
- struct ptp_clock *ptp_clock;
- struct ptp_clock_info caps;
- struct sk_buff_head tx_queue;
- struct sk_buff_head rx_queue;
- /* used to access the PTP registers atomic */
- struct mutex ptp_lock;
- int hwts_tx;
- int hwts_rx;
- u32 tx_delay;
- u32 rx_delay;
- struct timespec64 extts_ts;
- int extts_index;
- bool extts;
-};
-
static const
struct nxp_c45_phy_data *nxp_c45_get_data(struct phy_device *phydev)
{
@@ -1218,12 +1201,25 @@ static int nxp_c45_start_op(struct phy_device *phydev)
static int nxp_c45_config_intr(struct phy_device *phydev)
{
- if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
+ int ret;
+
+ if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
+ ret = phy_set_bits_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_PORT_FUNC_IRQ_EN, MACSEC_IRQS);
+ if (ret)
+ return ret;
+
return phy_set_bits_mmd(phydev, MDIO_MMD_VEND1,
VEND1_PHY_IRQ_EN, PHY_IRQ_LINK_EVENT);
- else
- return phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1,
- VEND1_PHY_IRQ_EN, PHY_IRQ_LINK_EVENT);
+ }
+
+ ret = phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_PORT_FUNC_IRQ_EN, MACSEC_IRQS);
+ if (ret)
+ return ret;
+
+ return phy_clear_bits_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_PHY_IRQ_EN, PHY_IRQ_LINK_EVENT);
}
static int tja1103_config_intr(struct phy_device *phydev)
@@ -1289,6 +1285,7 @@ static irqreturn_t nxp_c45_handle_interrupt(struct phy_device *phydev)
}
data->nmi_handler(phydev, &ret);
+ nxp_c45_handle_macsec_interrupt(phydev, &ret);
return ret;
}
@@ -1614,6 +1611,7 @@ static int nxp_c45_config_init(struct phy_device *phydev)
nxp_c45_counters_enable(phydev);
nxp_c45_ptp_init(phydev);
+ nxp_c45_macsec_config_init(phydev);
return nxp_c45_start_op(phydev);
}
@@ -1629,7 +1627,9 @@ static int nxp_c45_get_features(struct phy_device *phydev)
static int nxp_c45_probe(struct phy_device *phydev)
{
struct nxp_c45_phy *priv;
- int ptp_ability;
+ bool macsec_ability;
+ int phy_abilities;
+ bool ptp_ability;
int ret = 0;
priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL);
@@ -1645,9 +1645,9 @@ static int nxp_c45_probe(struct phy_device *phydev)
mutex_init(&priv->ptp_lock);
- ptp_ability = phy_read_mmd(phydev, MDIO_MMD_VEND1,
- VEND1_PORT_ABILITIES);
- ptp_ability = !!(ptp_ability & PTP_ABILITY);
+ phy_abilities = phy_read_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_PORT_ABILITIES);
+ ptp_ability = !!(phy_abilities & PTP_ABILITY);
if (!ptp_ability) {
phydev_dbg(phydev, "the phy does not support PTP");
goto no_ptp_support;
@@ -1666,6 +1666,20 @@ static int nxp_c45_probe(struct phy_device *phydev)
}
no_ptp_support:
+ macsec_ability = !!(phy_abilities & MACSEC_ABILITY);
+ if (!macsec_ability) {
+ phydev_info(phydev, "the phy does not support MACsec\n");
+ goto no_macsec_support;
+ }
+
+ if (IS_ENABLED(CONFIG_MACSEC)) {
+ ret = nxp_c45_macsec_probe(phydev);
+ phydev_dbg(phydev, "MACsec support enabled.");
+ } else {
+ phydev_dbg(phydev, "MACsec support not enabled even if the phy supports it");
+ }
+
+no_macsec_support:
return ret;
}
diff --git a/drivers/net/phy/nxp-c45-tja11xx.h b/drivers/net/phy/nxp-c45-tja11xx.h
new file mode 100644
index 000000000000..ace2df002508
--- /dev/null
+++ b/drivers/net/phy/nxp-c45-tja11xx.h
@@ -0,0 +1,37 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* NXP C45 PHY driver header file
+ * Copyright 2023 NXP
+ * Author: Radu Pirea <radu-nicolae.pirea@....nxp.com>
+ */
+
+#include <linux/ptp_clock_kernel.h>
+
+#define VEND1_PORT_FUNC_ENABLES 0x8048
+
+struct nxp_c45_macsec;
+
+struct nxp_c45_phy {
+ const struct nxp_c45_phy_data *phy_data;
+ struct phy_device *phydev;
+ struct mii_timestamper mii_ts;
+ struct ptp_clock *ptp_clock;
+ struct ptp_clock_info caps;
+ struct sk_buff_head tx_queue;
+ struct sk_buff_head rx_queue;
+ /* used to access the PTP registers atomic */
+ struct mutex ptp_lock;
+ int hwts_tx;
+ int hwts_rx;
+ u32 tx_delay;
+ u32 rx_delay;
+ struct timespec64 extts_ts;
+ int extts_index;
+ bool extts;
+ struct nxp_c45_macsec *macsec;
+};
+
+void nxp_c45_macsec_config_init(struct phy_device *phydev);
+void nxp_c45_handle_macsec_interrupt(struct phy_device *phydev,
+ irqreturn_t *ret);
+int nxp_c45_macsec_probe(struct phy_device *phydev);
+
--
2.34.1
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