From fa164e40c53b3811bb3a83c47eabbdf345e21e5e Mon Sep 17 00:00:00 2001 From: Antoine Tenart Date: Fri, 13 Mar 2020 10:48:01 +0100 Subject: [PATCH] net: phy: mscc: split the driver into separate files This patch splits the MSCC driver into separate files, per functionality, to improve readability and maintenance as the codebase grew a lot. The MACsec code is moved to a dedicated mscc_macsec.c file, the mscc.c file is renamed to mscc_main.c to keep the driver binary to be named mscc and common definition are put into a new mscc.h header. Most of the code was just moved around, except for a few exceptions: - Header inclusions were reworked to only keep what's needed. - Three helpers were created in the MACsec code, to avoid #ifdef's in the main C file: vsc8584_macsec_init, vsc8584_handle_macsec_interrupt and vsc8584_config_macsec_intr. The patch should not introduce any functional modification. Signed-off-by: Antoine Tenart Signed-off-by: David S. Miller --- drivers/net/phy/mscc/Makefile | 7 +- drivers/net/phy/mscc/mscc.h | 392 +++++ drivers/net/phy/mscc/mscc_macsec.c | 1051 +++++++++++++ drivers/net/phy/mscc/mscc_macsec.h | 58 + drivers/net/phy/mscc/{mscc.c => mscc_main.c} | 1469 +----------------- 5 files changed, 1515 insertions(+), 1462 deletions(-) create mode 100644 drivers/net/phy/mscc/mscc.h create mode 100644 drivers/net/phy/mscc/mscc_macsec.c rename drivers/net/phy/mscc/{mscc.c => mscc_main.c} (60%) diff --git a/drivers/net/phy/mscc/Makefile b/drivers/net/phy/mscc/Makefile index e419ed1a3213..10af42cd9839 100644 --- a/drivers/net/phy/mscc/Makefile +++ b/drivers/net/phy/mscc/Makefile @@ -2,4 +2,9 @@ # # Makefile for MSCC networking PHY driver -obj-$(CONFIG_MICROSEMI_PHY) += mscc.o +obj-$(CONFIG_MICROSEMI_PHY) := mscc.o +mscc-objs := mscc_main.o + +ifdef CONFIG_MACSEC +mscc-objs += mscc_macsec.o +endif diff --git a/drivers/net/phy/mscc/mscc.h b/drivers/net/phy/mscc/mscc.h new file mode 100644 index 000000000000..29ccb2c9c095 --- /dev/null +++ b/drivers/net/phy/mscc/mscc.h @@ -0,0 +1,392 @@ +/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */ +/* + * Driver for Microsemi VSC85xx PHYs + * + * Copyright (c) 2016 Microsemi Corporation + */ + +#ifndef _MSCC_PHY_H_ +#define _MSCC_PHY_H_ + +#if IS_ENABLED(CONFIG_MACSEC) +#include "mscc_macsec.h" +#endif + +enum rgmii_rx_clock_delay { + RGMII_RX_CLK_DELAY_0_2_NS = 0, + RGMII_RX_CLK_DELAY_0_8_NS = 1, + RGMII_RX_CLK_DELAY_1_1_NS = 2, + RGMII_RX_CLK_DELAY_1_7_NS = 3, + RGMII_RX_CLK_DELAY_2_0_NS = 4, + RGMII_RX_CLK_DELAY_2_3_NS = 5, + RGMII_RX_CLK_DELAY_2_6_NS = 6, + RGMII_RX_CLK_DELAY_3_4_NS = 7 +}; + +/* Microsemi VSC85xx PHY registers */ +/* IEEE 802. Std Registers */ +#define MSCC_PHY_BYPASS_CONTROL 18 +#define DISABLE_HP_AUTO_MDIX_MASK 0x0080 +#define DISABLE_PAIR_SWAP_CORR_MASK 0x0020 +#define DISABLE_POLARITY_CORR_MASK 0x0010 +#define PARALLEL_DET_IGNORE_ADVERTISED 0x0008 + +#define MSCC_PHY_EXT_CNTL_STATUS 22 +#define SMI_BROADCAST_WR_EN 0x0001 + +#define MSCC_PHY_ERR_RX_CNT 19 +#define MSCC_PHY_ERR_FALSE_CARRIER_CNT 20 +#define MSCC_PHY_ERR_LINK_DISCONNECT_CNT 21 +#define ERR_CNT_MASK GENMASK(7, 0) + +#define MSCC_PHY_EXT_PHY_CNTL_1 23 +#define MAC_IF_SELECTION_MASK 0x1800 +#define MAC_IF_SELECTION_GMII 0 +#define MAC_IF_SELECTION_RMII 1 +#define MAC_IF_SELECTION_RGMII 2 +#define MAC_IF_SELECTION_POS 11 +#define VSC8584_MAC_IF_SELECTION_MASK 0x1000 +#define VSC8584_MAC_IF_SELECTION_SGMII 0 +#define VSC8584_MAC_IF_SELECTION_1000BASEX 1 +#define VSC8584_MAC_IF_SELECTION_POS 12 +#define FAR_END_LOOPBACK_MODE_MASK 0x0008 +#define MEDIA_OP_MODE_MASK 0x0700 +#define MEDIA_OP_MODE_COPPER 0 +#define MEDIA_OP_MODE_SERDES 1 +#define MEDIA_OP_MODE_1000BASEX 2 +#define MEDIA_OP_MODE_100BASEFX 3 +#define MEDIA_OP_MODE_AMS_COPPER_SERDES 5 +#define MEDIA_OP_MODE_AMS_COPPER_1000BASEX 6 +#define MEDIA_OP_MODE_AMS_COPPER_100BASEFX 7 +#define MEDIA_OP_MODE_POS 8 + +#define MSCC_PHY_EXT_PHY_CNTL_2 24 + +#define MII_VSC85XX_INT_MASK 25 +#define MII_VSC85XX_INT_MASK_MDINT BIT(15) +#define MII_VSC85XX_INT_MASK_LINK_CHG BIT(13) +#define MII_VSC85XX_INT_MASK_WOL BIT(6) +#define MII_VSC85XX_INT_MASK_EXT BIT(5) +#define MII_VSC85XX_INT_STATUS 26 + +#define MII_VSC85XX_INT_MASK_MASK (MII_VSC85XX_INT_MASK_MDINT | \ + MII_VSC85XX_INT_MASK_LINK_CHG | \ + MII_VSC85XX_INT_MASK_EXT) + +#define MSCC_PHY_WOL_MAC_CONTROL 27 +#define EDGE_RATE_CNTL_POS 5 +#define EDGE_RATE_CNTL_MASK 0x00E0 + +#define MSCC_PHY_DEV_AUX_CNTL 28 +#define HP_AUTO_MDIX_X_OVER_IND_MASK 0x2000 + +#define MSCC_PHY_LED_MODE_SEL 29 +#define LED_MODE_SEL_POS(x) ((x) * 4) +#define LED_MODE_SEL_MASK(x) (GENMASK(3, 0) << LED_MODE_SEL_POS(x)) +#define LED_MODE_SEL(x, mode) (((mode) << LED_MODE_SEL_POS(x)) & LED_MODE_SEL_MASK(x)) + +#define MSCC_EXT_PAGE_CSR_CNTL_17 17 +#define MSCC_EXT_PAGE_CSR_CNTL_18 18 + +#define MSCC_EXT_PAGE_CSR_CNTL_19 19 +#define MSCC_PHY_CSR_CNTL_19_REG_ADDR(x) (x) +#define MSCC_PHY_CSR_CNTL_19_TARGET(x) ((x) << 12) +#define MSCC_PHY_CSR_CNTL_19_READ BIT(14) +#define MSCC_PHY_CSR_CNTL_19_CMD BIT(15) + +#define MSCC_EXT_PAGE_CSR_CNTL_20 20 +#define MSCC_PHY_CSR_CNTL_20_TARGET(x) (x) + +#define PHY_MCB_TARGET 0x07 +#define PHY_MCB_S6G_WRITE BIT(31) +#define PHY_MCB_S6G_READ BIT(30) + +#define PHY_S6G_PLL5G_CFG0 0x06 +#define PHY_S6G_LCPLL_CFG 0x11 +#define PHY_S6G_PLL_CFG 0x2b +#define PHY_S6G_COMMON_CFG 0x2c +#define PHY_S6G_GPC_CFG 0x2e +#define PHY_S6G_MISC_CFG 0x3b +#define PHY_MCB_S6G_CFG 0x3f +#define PHY_S6G_DFT_CFG2 0x3e +#define PHY_S6G_PLL_STATUS 0x31 +#define PHY_S6G_IB_STATUS0 0x2f + +#define PHY_S6G_SYS_RST_POS 31 +#define PHY_S6G_ENA_LANE_POS 18 +#define PHY_S6G_ENA_LOOP_POS 8 +#define PHY_S6G_QRATE_POS 6 +#define PHY_S6G_IF_MODE_POS 4 +#define PHY_S6G_PLL_ENA_OFFS_POS 21 +#define PHY_S6G_PLL_FSM_CTRL_DATA_POS 8 +#define PHY_S6G_PLL_FSM_ENA_POS 7 + +#define MSCC_EXT_PAGE_ACCESS 31 +#define MSCC_PHY_PAGE_STANDARD 0x0000 /* Standard registers */ +#define MSCC_PHY_PAGE_EXTENDED 0x0001 /* Extended registers */ +#define MSCC_PHY_PAGE_EXTENDED_2 0x0002 /* Extended reg - page 2 */ +#define MSCC_PHY_PAGE_EXTENDED_3 0x0003 /* Extended reg - page 3 */ +#define MSCC_PHY_PAGE_EXTENDED_4 0x0004 /* Extended reg - page 4 */ +#define MSCC_PHY_PAGE_CSR_CNTL MSCC_PHY_PAGE_EXTENDED_4 +#define MSCC_PHY_PAGE_MACSEC MSCC_PHY_PAGE_EXTENDED_4 +/* Extended reg - GPIO; this is a bank of registers that are shared for all PHYs + * in the same package. + */ +#define MSCC_PHY_PAGE_EXTENDED_GPIO 0x0010 /* Extended reg - GPIO */ +#define MSCC_PHY_PAGE_TEST 0x2a30 /* Test reg */ +#define MSCC_PHY_PAGE_TR 0x52b5 /* Token ring registers */ + +/* Extended Page 1 Registers */ +#define MSCC_PHY_CU_MEDIA_CRC_VALID_CNT 18 +#define VALID_CRC_CNT_CRC_MASK GENMASK(13, 0) + +#define MSCC_PHY_EXT_MODE_CNTL 19 +#define FORCE_MDI_CROSSOVER_MASK 0x000C +#define FORCE_MDI_CROSSOVER_MDIX 0x000C +#define FORCE_MDI_CROSSOVER_MDI 0x0008 + +#define MSCC_PHY_ACTIPHY_CNTL 20 +#define PHY_ADDR_REVERSED 0x0200 +#define DOWNSHIFT_CNTL_MASK 0x001C +#define DOWNSHIFT_EN 0x0010 +#define DOWNSHIFT_CNTL_POS 2 + +#define MSCC_PHY_EXT_PHY_CNTL_4 23 +#define PHY_CNTL_4_ADDR_POS 11 + +#define MSCC_PHY_VERIPHY_CNTL_2 25 + +#define MSCC_PHY_VERIPHY_CNTL_3 26 + +/* Extended Page 2 Registers */ +#define MSCC_PHY_CU_PMD_TX_CNTL 16 + +#define MSCC_PHY_RGMII_CNTL 20 +#define RGMII_RX_CLK_DELAY_MASK 0x0070 +#define RGMII_RX_CLK_DELAY_POS 4 + +#define MSCC_PHY_WOL_LOWER_MAC_ADDR 21 +#define MSCC_PHY_WOL_MID_MAC_ADDR 22 +#define MSCC_PHY_WOL_UPPER_MAC_ADDR 23 +#define MSCC_PHY_WOL_LOWER_PASSWD 24 +#define MSCC_PHY_WOL_MID_PASSWD 25 +#define MSCC_PHY_WOL_UPPER_PASSWD 26 + +#define MSCC_PHY_WOL_MAC_CONTROL 27 +#define SECURE_ON_ENABLE 0x8000 +#define SECURE_ON_PASSWD_LEN_4 0x4000 + +#define MSCC_PHY_EXTENDED_INT 28 +#define MSCC_PHY_EXTENDED_INT_MS_EGR BIT(9) + +/* Extended Page 3 Registers */ +#define MSCC_PHY_SERDES_TX_VALID_CNT 21 +#define MSCC_PHY_SERDES_TX_CRC_ERR_CNT 22 +#define MSCC_PHY_SERDES_RX_VALID_CNT 28 +#define MSCC_PHY_SERDES_RX_CRC_ERR_CNT 29 + +/* Extended page GPIO Registers */ +#define MSCC_DW8051_CNTL_STATUS 0 +#define MICRO_NSOFT_RESET 0x8000 +#define RUN_FROM_INT_ROM 0x4000 +#define AUTOINC_ADDR 0x2000 +#define PATCH_RAM_CLK 0x1000 +#define MICRO_PATCH_EN 0x0080 +#define DW8051_CLK_EN 0x0010 +#define MICRO_CLK_EN 0x0008 +#define MICRO_CLK_DIVIDE(x) ((x) >> 1) +#define MSCC_DW8051_VLD_MASK 0xf1ff + +/* x Address in range 1-4 */ +#define MSCC_TRAP_ROM_ADDR(x) ((x) * 2 + 1) +#define MSCC_PATCH_RAM_ADDR(x) (((x) + 1) * 2) +#define MSCC_INT_MEM_ADDR 11 + +#define MSCC_INT_MEM_CNTL 12 +#define READ_SFR 0x6000 +#define READ_PRAM 0x4000 +#define READ_ROM 0x2000 +#define READ_RAM 0x0000 +#define INT_MEM_WRITE_EN 0x1000 +#define EN_PATCH_RAM_TRAP_ADDR(x) (0x0100 << ((x) - 1)) +#define INT_MEM_DATA_M 0x00ff +#define INT_MEM_DATA(x) (INT_MEM_DATA_M & (x)) + +#define MSCC_PHY_PROC_CMD 18 +#define PROC_CMD_NCOMPLETED 0x8000 +#define PROC_CMD_FAILED 0x4000 +#define PROC_CMD_SGMII_PORT(x) ((x) << 8) +#define PROC_CMD_FIBER_PORT(x) (0x0100 << (x) % 4) +#define PROC_CMD_QSGMII_PORT 0x0c00 +#define PROC_CMD_RST_CONF_PORT 0x0080 +#define PROC_CMD_RECONF_PORT 0x0000 +#define PROC_CMD_READ_MOD_WRITE_PORT 0x0040 +#define PROC_CMD_WRITE 0x0040 +#define PROC_CMD_READ 0x0000 +#define PROC_CMD_FIBER_DISABLE 0x0020 +#define PROC_CMD_FIBER_100BASE_FX 0x0010 +#define PROC_CMD_FIBER_1000BASE_X 0x0000 +#define PROC_CMD_SGMII_MAC 0x0030 +#define PROC_CMD_QSGMII_MAC 0x0020 +#define PROC_CMD_NO_MAC_CONF 0x0000 +#define PROC_CMD_1588_DEFAULT_INIT 0x0010 +#define PROC_CMD_NOP 0x000f +#define PROC_CMD_PHY_INIT 0x000a +#define PROC_CMD_CRC16 0x0008 +#define PROC_CMD_FIBER_MEDIA_CONF 0x0001 +#define PROC_CMD_MCB_ACCESS_MAC_CONF 0x0000 +#define PROC_CMD_NCOMPLETED_TIMEOUT_MS 500 + +#define MSCC_PHY_MAC_CFG_FASTLINK 19 +#define MAC_CFG_MASK 0xc000 +#define MAC_CFG_SGMII 0x0000 +#define MAC_CFG_QSGMII 0x4000 + +/* Test page Registers */ +#define MSCC_PHY_TEST_PAGE_5 5 +#define MSCC_PHY_TEST_PAGE_8 8 +#define MSCC_PHY_TEST_PAGE_9 9 +#define MSCC_PHY_TEST_PAGE_20 20 +#define MSCC_PHY_TEST_PAGE_24 24 + +/* Token ring page Registers */ +#define MSCC_PHY_TR_CNTL 16 +#define TR_WRITE 0x8000 +#define TR_ADDR(x) (0x7fff & (x)) +#define MSCC_PHY_TR_LSB 17 +#define MSCC_PHY_TR_MSB 18 + +/* Microsemi PHY ID's + * Code assumes lowest nibble is 0 + */ +#define PHY_ID_VSC8504 0x000704c0 +#define PHY_ID_VSC8514 0x00070670 +#define PHY_ID_VSC8530 0x00070560 +#define PHY_ID_VSC8531 0x00070570 +#define PHY_ID_VSC8540 0x00070760 +#define PHY_ID_VSC8541 0x00070770 +#define PHY_ID_VSC8552 0x000704e0 +#define PHY_ID_VSC856X 0x000707e0 +#define PHY_ID_VSC8572 0x000704d0 +#define PHY_ID_VSC8574 0x000704a0 +#define PHY_ID_VSC8575 0x000707d0 +#define PHY_ID_VSC8582 0x000707b0 +#define PHY_ID_VSC8584 0x000707c0 + +#define MSCC_VDDMAC_1500 1500 +#define MSCC_VDDMAC_1800 1800 +#define MSCC_VDDMAC_2500 2500 +#define MSCC_VDDMAC_3300 3300 + +#define DOWNSHIFT_COUNT_MAX 5 + +#define MAX_LEDS 4 + +#define VSC8584_SUPP_LED_MODES (BIT(VSC8531_LINK_ACTIVITY) | \ + BIT(VSC8531_LINK_1000_ACTIVITY) | \ + BIT(VSC8531_LINK_100_ACTIVITY) | \ + BIT(VSC8531_LINK_10_ACTIVITY) | \ + BIT(VSC8531_LINK_100_1000_ACTIVITY) | \ + BIT(VSC8531_LINK_10_1000_ACTIVITY) | \ + BIT(VSC8531_LINK_10_100_ACTIVITY) | \ + BIT(VSC8584_LINK_100FX_1000X_ACTIVITY) | \ + BIT(VSC8531_DUPLEX_COLLISION) | \ + BIT(VSC8531_COLLISION) | \ + BIT(VSC8531_ACTIVITY) | \ + BIT(VSC8584_100FX_1000X_ACTIVITY) | \ + BIT(VSC8531_AUTONEG_FAULT) | \ + BIT(VSC8531_SERIAL_MODE) | \ + BIT(VSC8531_FORCE_LED_OFF) | \ + BIT(VSC8531_FORCE_LED_ON)) + +#define VSC85XX_SUPP_LED_MODES (BIT(VSC8531_LINK_ACTIVITY) | \ + BIT(VSC8531_LINK_1000_ACTIVITY) | \ + BIT(VSC8531_LINK_100_ACTIVITY) | \ + BIT(VSC8531_LINK_10_ACTIVITY) | \ + BIT(VSC8531_LINK_100_1000_ACTIVITY) | \ + BIT(VSC8531_LINK_10_1000_ACTIVITY) | \ + BIT(VSC8531_LINK_10_100_ACTIVITY) | \ + BIT(VSC8531_DUPLEX_COLLISION) | \ + BIT(VSC8531_COLLISION) | \ + BIT(VSC8531_ACTIVITY) | \ + BIT(VSC8531_AUTONEG_FAULT) | \ + BIT(VSC8531_SERIAL_MODE) | \ + BIT(VSC8531_FORCE_LED_OFF) | \ + BIT(VSC8531_FORCE_LED_ON)) + +#define MSCC_VSC8584_REVB_INT8051_FW "microchip/mscc_vsc8584_revb_int8051_fb48.bin" +#define MSCC_VSC8584_REVB_INT8051_FW_START_ADDR 0xe800 +#define MSCC_VSC8584_REVB_INT8051_FW_CRC 0xfb48 + +#define MSCC_VSC8574_REVB_INT8051_FW "microchip/mscc_vsc8574_revb_int8051_29e8.bin" +#define MSCC_VSC8574_REVB_INT8051_FW_START_ADDR 0x4000 +#define MSCC_VSC8574_REVB_INT8051_FW_CRC 0x29e8 + +#define VSC8584_REVB 0x0001 +#define MSCC_DEV_REV_MASK GENMASK(3, 0) + +struct reg_val { + u16 reg; + u32 val; +}; + +struct vsc85xx_hw_stat { + const char *string; + u8 reg; + u16 page; + u16 mask; +}; + +struct vsc8531_private { + int rate_magic; + u16 supp_led_modes; + u32 leds_mode[MAX_LEDS]; + u8 nleds; + const struct vsc85xx_hw_stat *hw_stats; + u64 *stats; + int nstats; + bool pkg_init; + /* For multiple port PHYs; the MDIO address of the base PHY in the + * package. + */ + unsigned int base_addr; + +#if IS_ENABLED(CONFIG_MACSEC) + /* MACsec fields: + * - One SecY per device (enforced at the s/w implementation level) + * - macsec_flows: list of h/w flows + * - ingr_flows: bitmap of ingress flows + * - egr_flows: bitmap of egress flows + */ + struct macsec_secy *secy; + struct list_head macsec_flows; + unsigned long ingr_flows; + unsigned long egr_flows; +#endif +}; + +#ifdef CONFIG_OF_MDIO +struct vsc8531_edge_rate_table { + u32 vddmac; + u32 slowdown[8]; +}; +#endif /* CONFIG_OF_MDIO */ + +#if IS_ENABLED(CONFIG_MACSEC) +int vsc8584_macsec_init(struct phy_device *phydev); +void vsc8584_handle_macsec_interrupt(struct phy_device *phydev); +void vsc8584_config_macsec_intr(struct phy_device *phydev); +#else +static inline int vsc8584_macsec_init(struct phy_device *phydev) +{ + return 0; +} +static inline void vsc8584_handle_macsec_interrupt(struct phy_device *phydev) +{ +} +static inline void vsc8584_config_macsec_intr(struct phy_device *phydev) +{ +} +#endif + +#endif /* _MSCC_PHY_H_ */ diff --git a/drivers/net/phy/mscc/mscc_macsec.c b/drivers/net/phy/mscc/mscc_macsec.c new file mode 100644 index 000000000000..e99e2cd72a0c --- /dev/null +++ b/drivers/net/phy/mscc/mscc_macsec.c @@ -0,0 +1,1051 @@ +// SPDX-License-Identifier: (GPL-2.0 OR MIT) +/* + * Driver for Microsemi VSC85xx PHYs + * + * Author: Nagaraju Lakkaraju + * License: Dual MIT/GPL + * Copyright (c) 2016 Microsemi Corporation + */ + +#include +#include + +#include + +#include + +#include "mscc.h" +#include "mscc_mac.h" +#include "mscc_macsec.h" +#include "mscc_fc_buffer.h" + +static u32 vsc8584_macsec_phy_read(struct phy_device *phydev, + enum macsec_bank bank, u32 reg) +{ + u32 val, val_l = 0, val_h = 0; + unsigned long deadline; + int rc; + + rc = phy_select_page(phydev, MSCC_PHY_PAGE_MACSEC); + if (rc < 0) + goto failed; + + __phy_write(phydev, MSCC_EXT_PAGE_MACSEC_20, + MSCC_PHY_MACSEC_20_TARGET(bank >> 2)); + + if (bank >> 2 == 0x1) + /* non-MACsec access */ + bank &= 0x3; + else + bank = 0; + + __phy_write(phydev, MSCC_EXT_PAGE_MACSEC_19, + MSCC_PHY_MACSEC_19_CMD | MSCC_PHY_MACSEC_19_READ | + MSCC_PHY_MACSEC_19_REG_ADDR(reg) | + MSCC_PHY_MACSEC_19_TARGET(bank)); + + deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); + do { + val = __phy_read(phydev, MSCC_EXT_PAGE_MACSEC_19); + } while (time_before(jiffies, deadline) && !(val & MSCC_PHY_MACSEC_19_CMD)); + + val_l = __phy_read(phydev, MSCC_EXT_PAGE_MACSEC_17); + val_h = __phy_read(phydev, MSCC_EXT_PAGE_MACSEC_18); + +failed: + phy_restore_page(phydev, rc, rc); + + return (val_h << 16) | val_l; +} + +static void vsc8584_macsec_phy_write(struct phy_device *phydev, + enum macsec_bank bank, u32 reg, u32 val) +{ + unsigned long deadline; + int rc; + + rc = phy_select_page(phydev, MSCC_PHY_PAGE_MACSEC); + if (rc < 0) + goto failed; + + __phy_write(phydev, MSCC_EXT_PAGE_MACSEC_20, + MSCC_PHY_MACSEC_20_TARGET(bank >> 2)); + + if ((bank >> 2 == 0x1) || (bank >> 2 == 0x3)) + bank &= 0x3; + else + /* MACsec access */ + bank = 0; + + __phy_write(phydev, MSCC_EXT_PAGE_MACSEC_17, (u16)val); + __phy_write(phydev, MSCC_EXT_PAGE_MACSEC_18, (u16)(val >> 16)); + + __phy_write(phydev, MSCC_EXT_PAGE_MACSEC_19, + MSCC_PHY_MACSEC_19_CMD | MSCC_PHY_MACSEC_19_REG_ADDR(reg) | + MSCC_PHY_MACSEC_19_TARGET(bank)); + + deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); + do { + val = __phy_read(phydev, MSCC_EXT_PAGE_MACSEC_19); + } while (time_before(jiffies, deadline) && !(val & MSCC_PHY_MACSEC_19_CMD)); + +failed: + phy_restore_page(phydev, rc, rc); +} + +static void vsc8584_macsec_classification(struct phy_device *phydev, + enum macsec_bank bank) +{ + /* enable VLAN tag parsing */ + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_CP_TAG, + MSCC_MS_SAM_CP_TAG_PARSE_STAG | + MSCC_MS_SAM_CP_TAG_PARSE_QTAG | + MSCC_MS_SAM_CP_TAG_PARSE_QINQ); +} + +static void vsc8584_macsec_flow_default_action(struct phy_device *phydev, + enum macsec_bank bank, + bool block) +{ + u32 port = (bank == MACSEC_INGR) ? + MSCC_MS_PORT_UNCONTROLLED : MSCC_MS_PORT_COMMON; + u32 action = MSCC_MS_FLOW_BYPASS; + + if (block) + action = MSCC_MS_FLOW_DROP; + + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_NM_FLOW_NCP, + /* MACsec untagged */ + MSCC_MS_SAM_NM_FLOW_NCP_UNTAGGED_FLOW_TYPE(action) | + MSCC_MS_SAM_NM_FLOW_NCP_UNTAGGED_DROP_ACTION(MSCC_MS_ACTION_DROP) | + MSCC_MS_SAM_NM_FLOW_NCP_UNTAGGED_DEST_PORT(port) | + /* MACsec tagged */ + MSCC_MS_SAM_NM_FLOW_NCP_TAGGED_FLOW_TYPE(action) | + MSCC_MS_SAM_NM_FLOW_NCP_TAGGED_DROP_ACTION(MSCC_MS_ACTION_DROP) | + MSCC_MS_SAM_NM_FLOW_NCP_TAGGED_DEST_PORT(port) | + /* Bad tag */ + MSCC_MS_SAM_NM_FLOW_NCP_BADTAG_FLOW_TYPE(action) | + MSCC_MS_SAM_NM_FLOW_NCP_BADTAG_DROP_ACTION(MSCC_MS_ACTION_DROP) | + MSCC_MS_SAM_NM_FLOW_NCP_BADTAG_DEST_PORT(port) | + /* Kay tag */ + MSCC_MS_SAM_NM_FLOW_NCP_KAY_FLOW_TYPE(action) | + MSCC_MS_SAM_NM_FLOW_NCP_KAY_DROP_ACTION(MSCC_MS_ACTION_DROP) | + MSCC_MS_SAM_NM_FLOW_NCP_KAY_DEST_PORT(port)); + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_NM_FLOW_CP, + /* MACsec untagged */ + MSCC_MS_SAM_NM_FLOW_NCP_UNTAGGED_FLOW_TYPE(action) | + MSCC_MS_SAM_NM_FLOW_CP_UNTAGGED_DROP_ACTION(MSCC_MS_ACTION_DROP) | + MSCC_MS_SAM_NM_FLOW_CP_UNTAGGED_DEST_PORT(port) | + /* MACsec tagged */ + MSCC_MS_SAM_NM_FLOW_NCP_TAGGED_FLOW_TYPE(action) | + MSCC_MS_SAM_NM_FLOW_CP_TAGGED_DROP_ACTION(MSCC_MS_ACTION_DROP) | + MSCC_MS_SAM_NM_FLOW_CP_TAGGED_DEST_PORT(port) | + /* Bad tag */ + MSCC_MS_SAM_NM_FLOW_NCP_BADTAG_FLOW_TYPE(action) | + MSCC_MS_SAM_NM_FLOW_CP_BADTAG_DROP_ACTION(MSCC_MS_ACTION_DROP) | + MSCC_MS_SAM_NM_FLOW_CP_BADTAG_DEST_PORT(port) | + /* Kay tag */ + MSCC_MS_SAM_NM_FLOW_NCP_KAY_FLOW_TYPE(action) | + MSCC_MS_SAM_NM_FLOW_CP_KAY_DROP_ACTION(MSCC_MS_ACTION_DROP) | + MSCC_MS_SAM_NM_FLOW_CP_KAY_DEST_PORT(port)); +} + +static void vsc8584_macsec_integrity_checks(struct phy_device *phydev, + enum macsec_bank bank) +{ + u32 val; + + if (bank != MACSEC_INGR) + return; + + /* Set default rules to pass unmatched frames */ + val = vsc8584_macsec_phy_read(phydev, bank, + MSCC_MS_PARAMS2_IG_CC_CONTROL); + val |= MSCC_MS_PARAMS2_IG_CC_CONTROL_NON_MATCH_CTRL_ACT | + MSCC_MS_PARAMS2_IG_CC_CONTROL_NON_MATCH_ACT; + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_PARAMS2_IG_CC_CONTROL, + val); + + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_PARAMS2_IG_CP_TAG, + MSCC_MS_PARAMS2_IG_CP_TAG_PARSE_STAG | + MSCC_MS_PARAMS2_IG_CP_TAG_PARSE_QTAG | + MSCC_MS_PARAMS2_IG_CP_TAG_PARSE_QINQ); +} + +static void vsc8584_macsec_block_init(struct phy_device *phydev, + enum macsec_bank bank) +{ + u32 val; + int i; + + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_ENA_CFG, + MSCC_MS_ENA_CFG_SW_RST | + MSCC_MS_ENA_CFG_MACSEC_BYPASS_ENA); + + /* Set the MACsec block out of s/w reset and enable clocks */ + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_ENA_CFG, + MSCC_MS_ENA_CFG_CLK_ENA); + + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_STATUS_CONTEXT_CTRL, + bank == MACSEC_INGR ? 0xe5880214 : 0xe5880218); + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_MISC_CONTROL, + MSCC_MS_MISC_CONTROL_MC_LATENCY_FIX(bank == MACSEC_INGR ? 57 : 40) | + MSCC_MS_MISC_CONTROL_XFORM_REC_SIZE(bank == MACSEC_INGR ? 1 : 2)); + + /* Clear the counters */ + val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MS_COUNT_CONTROL); + val |= MSCC_MS_COUNT_CONTROL_AUTO_CNTR_RESET; + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_COUNT_CONTROL, val); + + /* Enable octet increment mode */ + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_PP_CTRL, + MSCC_MS_PP_CTRL_MACSEC_OCTET_INCR_MODE); + + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_BLOCK_CTX_UPDATE, 0x3); + + val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MS_COUNT_CONTROL); + val |= MSCC_MS_COUNT_CONTROL_RESET_ALL; + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_COUNT_CONTROL, val); + + /* Set the MTU */ + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_NON_VLAN_MTU_CHECK, + MSCC_MS_NON_VLAN_MTU_CHECK_NV_MTU_COMPARE(32761) | + MSCC_MS_NON_VLAN_MTU_CHECK_NV_MTU_COMP_DROP); + + for (i = 0; i < 8; i++) + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_VLAN_MTU_CHECK(i), + MSCC_MS_VLAN_MTU_CHECK_MTU_COMPARE(32761) | + MSCC_MS_VLAN_MTU_CHECK_MTU_COMP_DROP); + + if (bank == MACSEC_EGR) { + val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MS_INTR_CTRL_STATUS); + val &= ~MSCC_MS_INTR_CTRL_STATUS_INTR_ENABLE_M; + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_INTR_CTRL_STATUS, val); + + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_FC_CFG, + MSCC_MS_FC_CFG_FCBUF_ENA | + MSCC_MS_FC_CFG_LOW_THRESH(0x1) | + MSCC_MS_FC_CFG_HIGH_THRESH(0x4) | + MSCC_MS_FC_CFG_LOW_BYTES_VAL(0x4) | + MSCC_MS_FC_CFG_HIGH_BYTES_VAL(0x6)); + } + + vsc8584_macsec_classification(phydev, bank); + vsc8584_macsec_flow_default_action(phydev, bank, false); + vsc8584_macsec_integrity_checks(phydev, bank); + + /* Enable the MACsec block */ + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_ENA_CFG, + MSCC_MS_ENA_CFG_CLK_ENA | + MSCC_MS_ENA_CFG_MACSEC_ENA | + MSCC_MS_ENA_CFG_MACSEC_SPEED_MODE(0x5)); +} + +static void vsc8584_macsec_mac_init(struct phy_device *phydev, + enum macsec_bank bank) +{ + u32 val; + int i; + + /* Clear host & line stats */ + for (i = 0; i < 36; i++) + vsc8584_macsec_phy_write(phydev, bank, 0x1c + i, 0); + + val = vsc8584_macsec_phy_read(phydev, bank, + MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL); + val &= ~MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL_PAUSE_MODE_M; + val |= MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL_PAUSE_MODE(2) | + MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL_PAUSE_VALUE(0xffff); + vsc8584_macsec_phy_write(phydev, bank, + MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL, val); + + val = vsc8584_macsec_phy_read(phydev, bank, + MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL_2); + val |= 0xffff; + vsc8584_macsec_phy_write(phydev, bank, + MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL_2, val); + + val = vsc8584_macsec_phy_read(phydev, bank, + MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL); + if (bank == HOST_MAC) + val |= MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL_PAUSE_TIMER_ENA | + MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL_PAUSE_FRAME_DROP_ENA; + else + val |= MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL_PAUSE_REACT_ENA | + MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL_PAUSE_FRAME_DROP_ENA | + MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL_PAUSE_MODE | + MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL_EARLY_PAUSE_DETECT_ENA; + vsc8584_macsec_phy_write(phydev, bank, + MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL, val); + + vsc8584_macsec_phy_write(phydev, bank, MSCC_MAC_CFG_PKTINF_CFG, + MSCC_MAC_CFG_PKTINF_CFG_STRIP_FCS_ENA | + MSCC_MAC_CFG_PKTINF_CFG_INSERT_FCS_ENA | + MSCC_MAC_CFG_PKTINF_CFG_LPI_RELAY_ENA | + MSCC_MAC_CFG_PKTINF_CFG_STRIP_PREAMBLE_ENA | + MSCC_MAC_CFG_PKTINF_CFG_INSERT_PREAMBLE_ENA | + (bank == HOST_MAC ? + MSCC_MAC_CFG_PKTINF_CFG_ENABLE_TX_PADDING : 0)); + + val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MAC_CFG_MODE_CFG); + val &= ~MSCC_MAC_CFG_MODE_CFG_DISABLE_DIC; + vsc8584_macsec_phy_write(phydev, bank, MSCC_MAC_CFG_MODE_CFG, val); + + val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MAC_CFG_MAXLEN_CFG); + val &= ~MSCC_MAC_CFG_MAXLEN_CFG_MAX_LEN_M; + val |= MSCC_MAC_CFG_MAXLEN_CFG_MAX_LEN(10240); + vsc8584_macsec_phy_write(phydev, bank, MSCC_MAC_CFG_MAXLEN_CFG, val); + + vsc8584_macsec_phy_write(phydev, bank, MSCC_MAC_CFG_ADV_CHK_CFG, + MSCC_MAC_CFG_ADV_CHK_CFG_SFD_CHK_ENA | + MSCC_MAC_CFG_ADV_CHK_CFG_PRM_CHK_ENA | + MSCC_MAC_CFG_ADV_CHK_CFG_OOR_ERR_ENA | + MSCC_MAC_CFG_ADV_CHK_CFG_INR_ERR_ENA); + + val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MAC_CFG_LFS_CFG); + val &= ~MSCC_MAC_CFG_LFS_CFG_LFS_MODE_ENA; + vsc8584_macsec_phy_write(phydev, bank, MSCC_MAC_CFG_LFS_CFG, val); + + vsc8584_macsec_phy_write(phydev, bank, MSCC_MAC_CFG_ENA_CFG, + MSCC_MAC_CFG_ENA_CFG_RX_CLK_ENA | + MSCC_MAC_CFG_ENA_CFG_TX_CLK_ENA | + MSCC_MAC_CFG_ENA_CFG_RX_ENA | + MSCC_MAC_CFG_ENA_CFG_TX_ENA); +} + +/* Must be called with mdio_lock taken */ +static int __vsc8584_macsec_init(struct phy_device *phydev) +{ + u32 val; + + vsc8584_macsec_block_init(phydev, MACSEC_INGR); + vsc8584_macsec_block_init(phydev, MACSEC_EGR); + vsc8584_macsec_mac_init(phydev, HOST_MAC); + vsc8584_macsec_mac_init(phydev, LINE_MAC); + + vsc8584_macsec_phy_write(phydev, FC_BUFFER, + MSCC_FCBUF_FC_READ_THRESH_CFG, + MSCC_FCBUF_FC_READ_THRESH_CFG_TX_THRESH(4) | + MSCC_FCBUF_FC_READ_THRESH_CFG_RX_THRESH(5)); + + val = vsc8584_macsec_phy_read(phydev, FC_BUFFER, MSCC_FCBUF_MODE_CFG); + val |= MSCC_FCBUF_MODE_CFG_PAUSE_GEN_ENA | + MSCC_FCBUF_MODE_CFG_RX_PPM_RATE_ADAPT_ENA | + MSCC_FCBUF_MODE_CFG_TX_PPM_RATE_ADAPT_ENA; + vsc8584_macsec_phy_write(phydev, FC_BUFFER, MSCC_FCBUF_MODE_CFG, val); + + vsc8584_macsec_phy_write(phydev, FC_BUFFER, MSCC_FCBUF_PPM_RATE_ADAPT_THRESH_CFG, + MSCC_FCBUF_PPM_RATE_ADAPT_THRESH_CFG_TX_THRESH(8) | + MSCC_FCBUF_PPM_RATE_ADAPT_THRESH_CFG_TX_OFFSET(9)); + + val = vsc8584_macsec_phy_read(phydev, FC_BUFFER, + MSCC_FCBUF_TX_DATA_QUEUE_CFG); + val &= ~(MSCC_FCBUF_TX_DATA_QUEUE_CFG_START_M | + MSCC_FCBUF_TX_DATA_QUEUE_CFG_END_M); + val |= MSCC_FCBUF_TX_DATA_QUEUE_CFG_START(0) | + MSCC_FCBUF_TX_DATA_QUEUE_CFG_END(5119); + vsc8584_macsec_phy_write(phydev, FC_BUFFER, + MSCC_FCBUF_TX_DATA_QUEUE_CFG, val); + + val = vsc8584_macsec_phy_read(phydev, FC_BUFFER, MSCC_FCBUF_ENA_CFG); + val |= MSCC_FCBUF_ENA_CFG_TX_ENA | MSCC_FCBUF_ENA_CFG_RX_ENA; + vsc8584_macsec_phy_write(phydev, FC_BUFFER, MSCC_FCBUF_ENA_CFG, val); + + val = vsc8584_macsec_phy_read(phydev, IP_1588, + MSCC_PROC_0_IP_1588_TOP_CFG_STAT_MODE_CTL); + val &= ~MSCC_PROC_0_IP_1588_TOP_CFG_STAT_MODE_CTL_PROTOCOL_MODE_M; + val |= MSCC_PROC_0_IP_1588_TOP_CFG_STAT_MODE_CTL_PROTOCOL_MODE(4); + vsc8584_macsec_phy_write(phydev, IP_1588, + MSCC_PROC_0_IP_1588_TOP_CFG_STAT_MODE_CTL, val); + + return 0; +} + +static void vsc8584_macsec_flow(struct phy_device *phydev, + struct macsec_flow *flow) +{ + struct vsc8531_private *priv = phydev->priv; + enum macsec_bank bank = flow->bank; + u32 val, match = 0, mask = 0, action = 0, idx = flow->index; + + if (flow->match.tagged) + match |= MSCC_MS_SAM_MISC_MATCH_TAGGED; + if (flow->match.untagged) + match |= MSCC_MS_SAM_MISC_MATCH_UNTAGGED; + + if (bank == MACSEC_INGR && flow->assoc_num >= 0) { + match |= MSCC_MS_SAM_MISC_MATCH_AN(flow->assoc_num); + mask |= MSCC_MS_SAM_MASK_AN_MASK(0x3); + } + + if (bank == MACSEC_INGR && flow->match.sci && flow->rx_sa->sc->sci) { + match |= MSCC_MS_SAM_MISC_MATCH_TCI(BIT(3)); + mask |= MSCC_MS_SAM_MASK_TCI_MASK(BIT(3)) | + MSCC_MS_SAM_MASK_SCI_MASK; + + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_MATCH_SCI_LO(idx), + lower_32_bits(flow->rx_sa->sc->sci)); + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_MATCH_SCI_HI(idx), + upper_32_bits(flow->rx_sa->sc->sci)); + } + + if (flow->match.etype) { + mask |= MSCC_MS_SAM_MASK_MAC_ETYPE_MASK; + + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_MAC_SA_MATCH_HI(idx), + MSCC_MS_SAM_MAC_SA_MATCH_HI_ETYPE(htons(flow->etype))); + } + + match |= MSCC_MS_SAM_MISC_MATCH_PRIORITY(flow->priority); + + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_MISC_MATCH(idx), match); + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_MASK(idx), mask); + + /* Action for matching packets */ + if (flow->action.drop) + action = MSCC_MS_FLOW_DROP; + else if (flow->action.bypass || flow->port == MSCC_MS_PORT_UNCONTROLLED) + action = MSCC_MS_FLOW_BYPASS; + else + action = (bank == MACSEC_INGR) ? + MSCC_MS_FLOW_INGRESS : MSCC_MS_FLOW_EGRESS; + + val = MSCC_MS_SAM_FLOW_CTRL_FLOW_TYPE(action) | + MSCC_MS_SAM_FLOW_CTRL_DROP_ACTION(MSCC_MS_ACTION_DROP) | + MSCC_MS_SAM_FLOW_CTRL_DEST_PORT(flow->port); + + if (action == MSCC_MS_FLOW_BYPASS) + goto write_ctrl; + + if (bank == MACSEC_INGR) { + if (priv->secy->replay_protect) + val |= MSCC_MS_SAM_FLOW_CTRL_REPLAY_PROTECT; + if (priv->secy->validate_frames == MACSEC_VALIDATE_STRICT) + val |= MSCC_MS_SAM_FLOW_CTRL_VALIDATE_FRAMES(MSCC_MS_VALIDATE_STRICT); + else if (priv->secy->validate_frames == MACSEC_VALIDATE_CHECK) + val |= MSCC_MS_SAM_FLOW_CTRL_VALIDATE_FRAMES(MSCC_MS_VALIDATE_CHECK); + } else if (bank == MACSEC_EGR) { + if (priv->secy->protect_frames) + val |= MSCC_MS_SAM_FLOW_CTRL_PROTECT_FRAME; + if (priv->secy->tx_sc.encrypt) + val |= MSCC_MS_SAM_FLOW_CTRL_CONF_PROTECT; + if (priv->secy->tx_sc.send_sci) + val |= MSCC_MS_SAM_FLOW_CTRL_INCLUDE_SCI; + } + +write_ctrl: + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_FLOW_CTRL(idx), val); +} + +static struct macsec_flow *vsc8584_macsec_find_flow(struct macsec_context *ctx, + enum macsec_bank bank) +{ + struct vsc8531_private *priv = ctx->phydev->priv; + struct macsec_flow *pos, *tmp; + + list_for_each_entry_safe(pos, tmp, &priv->macsec_flows, list) + if (pos->assoc_num == ctx->sa.assoc_num && pos->bank == bank) + return pos; + + return ERR_PTR(-ENOENT); +} + +static void vsc8584_macsec_flow_enable(struct phy_device *phydev, + struct macsec_flow *flow) +{ + enum macsec_bank bank = flow->bank; + u32 val, idx = flow->index; + + if ((flow->bank == MACSEC_INGR && flow->rx_sa && !flow->rx_sa->active) || + (flow->bank == MACSEC_EGR && flow->tx_sa && !flow->tx_sa->active)) + return; + + /* Enable */ + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_ENTRY_SET1, BIT(idx)); + + /* Set in-use */ + val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MS_SAM_FLOW_CTRL(idx)); + val |= MSCC_MS_SAM_FLOW_CTRL_SA_IN_USE; + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_FLOW_CTRL(idx), val); +} + +static void vsc8584_macsec_flow_disable(struct phy_device *phydev, + struct macsec_flow *flow) +{ + enum macsec_bank bank = flow->bank; + u32 val, idx = flow->index; + + /* Disable */ + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_ENTRY_CLEAR1, BIT(idx)); + + /* Clear in-use */ + val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MS_SAM_FLOW_CTRL(idx)); + val &= ~MSCC_MS_SAM_FLOW_CTRL_SA_IN_USE; + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_FLOW_CTRL(idx), val); +} + +static u32 vsc8584_macsec_flow_context_id(struct macsec_flow *flow) +{ + if (flow->bank == MACSEC_INGR) + return flow->index + MSCC_MS_MAX_FLOWS; + + return flow->index; +} + +/* Derive the AES key to get a key for the hash autentication */ +static int vsc8584_macsec_derive_key(const u8 key[MACSEC_KEYID_LEN], + u16 key_len, u8 hkey[16]) +{ + struct crypto_skcipher *tfm = crypto_alloc_skcipher("ecb(aes)", 0, 0); + struct skcipher_request *req = NULL; + struct scatterlist src, dst; + DECLARE_CRYPTO_WAIT(wait); + u32 input[4] = {0}; + int ret; + + if (IS_ERR(tfm)) + return PTR_ERR(tfm); + + req = skcipher_request_alloc(tfm, GFP_KERNEL); + if (!req) { + ret = -ENOMEM; + goto out; + } + + skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | + CRYPTO_TFM_REQ_MAY_SLEEP, crypto_req_done, + &wait); + ret = crypto_skcipher_setkey(tfm, key, key_len); + if (ret < 0) + goto out; + + sg_init_one(&src, input, 16); + sg_init_one(&dst, hkey, 16); + skcipher_request_set_crypt(req, &src, &dst, 16, NULL); + + ret = crypto_wait_req(crypto_skcipher_encrypt(req), &wait); + +out: + skcipher_request_free(req); + crypto_free_skcipher(tfm); + return ret; +} + +static int vsc8584_macsec_transformation(struct phy_device *phydev, + struct macsec_flow *flow) +{ + struct vsc8531_private *priv = phydev->priv; + enum macsec_bank bank = flow->bank; + int i, ret, index = flow->index; + u32 rec = 0, control = 0; + u8 hkey[16]; + sci_t sci; + + ret = vsc8584_macsec_derive_key(flow->key, priv->secy->key_len, hkey); + if (ret) + return ret; + + switch (priv->secy->key_len) { + case 16: + control |= CONTROL_CRYPTO_ALG(CTRYPTO_ALG_AES_CTR_128); + break; + case 32: + control |= CONTROL_CRYPTO_ALG(CTRYPTO_ALG_AES_CTR_256); + break; + default: + return -EINVAL; + } + + control |= (bank == MACSEC_EGR) ? + (CONTROL_TYPE_EGRESS | CONTROL_AN(priv->secy->tx_sc.encoding_sa)) : + (CONTROL_TYPE_INGRESS | CONTROL_SEQ_MASK); + + control |= CONTROL_UPDATE_SEQ | CONTROL_ENCRYPT_AUTH | CONTROL_KEY_IN_CTX | + CONTROL_IV0 | CONTROL_IV1 | CONTROL_IV_IN_SEQ | + CONTROL_DIGEST_TYPE(0x2) | CONTROL_SEQ_TYPE(0x1) | + CONTROL_AUTH_ALG(AUTH_ALG_AES_GHAS) | CONTROL_CONTEXT_ID; + + /* Set the control word */ + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_XFORM_REC(index, rec++), + control); + + /* Set the context ID. Must be unique. */ + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_XFORM_REC(index, rec++), + vsc8584_macsec_flow_context_id(flow)); + + /* Set the encryption/decryption key */ + for (i = 0; i < priv->secy->key_len / sizeof(u32); i++) + vsc8584_macsec_phy_write(phydev, bank, + MSCC_MS_XFORM_REC(index, rec++), + ((u32 *)flow->key)[i]); + + /* Set the authentication key */ + for (i = 0; i < 4; i++) + vsc8584_macsec_phy_write(phydev, bank, + MSCC_MS_XFORM_REC(index, rec++), + ((u32 *)hkey)[i]); + + /* Initial sequence number */ + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_XFORM_REC(index, rec++), + bank == MACSEC_INGR ? + flow->rx_sa->next_pn : flow->tx_sa->next_pn); + + if (bank == MACSEC_INGR) + /* Set the mask (replay window size) */ + vsc8584_macsec_phy_write(phydev, bank, + MSCC_MS_XFORM_REC(index, rec++), + priv->secy->replay_window); + + /* Set the input vectors */ + sci = bank == MACSEC_INGR ? flow->rx_sa->sc->sci : priv->secy->sci; + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_XFORM_REC(index, rec++), + lower_32_bits(sci)); + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_XFORM_REC(index, rec++), + upper_32_bits(sci)); + + while (rec < 20) + vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_XFORM_REC(index, rec++), + 0); + + flow->has_transformation = true; + return 0; +} + +static struct macsec_flow *vsc8584_macsec_alloc_flow(struct vsc8531_private *priv, + enum macsec_bank bank) +{ + unsigned long *bitmap = bank == MACSEC_INGR ? + &priv->ingr_flows : &priv->egr_flows; + struct macsec_flow *flow; + int index; + + index = find_first_zero_bit(bitmap, MSCC_MS_MAX_FLOWS); + + if (index == MSCC_MS_MAX_FLOWS) + return ERR_PTR(-ENOMEM); + + flow = kzalloc(sizeof(*flow), GFP_KERNEL); + if (!flow) + return ERR_PTR(-ENOMEM); + + set_bit(index, bitmap); + flow->index = index; + flow->bank = bank; + flow->priority = 8; + flow->assoc_num = -1; + + list_add_tail(&flow->list, &priv->macsec_flows); + return flow; +} + +static void vsc8584_macsec_free_flow(struct vsc8531_private *priv, + struct macsec_flow *flow) +{ + unsigned long *bitmap = flow->bank == MACSEC_INGR ? + &priv->ingr_flows : &priv->egr_flows; + + list_del(&flow->list); + clear_bit(flow->index, bitmap); + kfree(flow); +} + +static int vsc8584_macsec_add_flow(struct phy_device *phydev, + struct macsec_flow *flow, bool update) +{ + int ret; + + flow->port = MSCC_MS_PORT_CONTROLLED; + vsc8584_macsec_flow(phydev, flow); + + if (update) + return 0; + + ret = vsc8584_macsec_transformation(phydev, flow); + if (ret) { + vsc8584_macsec_free_flow(phydev->priv, flow); + return ret; + } + + return 0; +} + +static int vsc8584_macsec_default_flows(struct phy_device *phydev) +{ + struct macsec_flow *flow; + + /* Add a rule to let the MKA traffic go through, ingress */ + flow = vsc8584_macsec_alloc_flow(phydev->priv, MACSEC_INGR); + if (IS_ERR(flow)) + return PTR_ERR(flow); + + flow->priority = 15; + flow->port = MSCC_MS_PORT_UNCONTROLLED; + flow->match.tagged = 1; + flow->match.untagged = 1; + flow->match.etype = 1; + flow->etype = ETH_P_PAE; + flow->action.bypass = 1; + + vsc8584_macsec_flow(phydev, flow); + vsc8584_macsec_flow_enable(phydev, flow); + + /* Add a rule to let the MKA traffic go through, egress */ + flow = vsc8584_macsec_alloc_flow(phydev->priv, MACSEC_EGR); + if (IS_ERR(flow)) + return PTR_ERR(flow); + + flow->priority = 15; + flow->port = MSCC_MS_PORT_COMMON; + flow->match.untagged = 1; + flow->match.etype = 1; + flow->etype = ETH_P_PAE; + flow->action.bypass = 1; + + vsc8584_macsec_flow(phydev, flow); + vsc8584_macsec_flow_enable(phydev, flow); + + return 0; +} + +static void vsc8584_macsec_del_flow(struct phy_device *phydev, + struct macsec_flow *flow) +{ + vsc8584_macsec_flow_disable(phydev, flow); + vsc8584_macsec_free_flow(phydev->priv, flow); +} + +static int __vsc8584_macsec_add_rxsa(struct macsec_context *ctx, + struct macsec_flow *flow, bool update) +{ + struct phy_device *phydev = ctx->phydev; + struct vsc8531_private *priv = phydev->priv; + + if (!flow) { + flow = vsc8584_macsec_alloc_flow(priv, MACSEC_INGR); + if (IS_ERR(flow)) + return PTR_ERR(flow); + + memcpy(flow->key, ctx->sa.key, priv->secy->key_len); + } + + flow->assoc_num = ctx->sa.assoc_num; + flow->rx_sa = ctx->sa.rx_sa; + + /* Always match tagged packets on ingress */ + flow->match.tagged = 1; + flow->match.sci = 1; + + if (priv->secy->validate_frames != MACSEC_VALIDATE_DISABLED) + flow->match.untagged = 1; + + return vsc8584_macsec_add_flow(phydev, flow, update); +} + +static int __vsc8584_macsec_add_txsa(struct macsec_context *ctx, + struct macsec_flow *flow, bool update) +{ + struct phy_device *phydev = ctx->phydev; + struct vsc8531_private *priv = phydev->priv; + + if (!flow) { + flow = vsc8584_macsec_alloc_flow(priv, MACSEC_EGR); + if (IS_ERR(flow)) + return PTR_ERR(flow); + + memcpy(flow->key, ctx->sa.key, priv->secy->key_len); + } + + flow->assoc_num = ctx->sa.assoc_num; + flow->tx_sa = ctx->sa.tx_sa; + + /* Always match untagged packets on egress */ + flow->match.untagged = 1; + + return vsc8584_macsec_add_flow(phydev, flow, update); +} + +static int vsc8584_macsec_dev_open(struct macsec_context *ctx) +{ + struct vsc8531_private *priv = ctx->phydev->priv; + struct macsec_flow *flow, *tmp; + + /* No operation to perform before the commit step */ + if (ctx->prepare) + return 0; + + list_for_each_entry_safe(flow, tmp, &priv->macsec_flows, list) + vsc8584_macsec_flow_enable(ctx->phydev, flow); + + return 0; +} + +static int vsc8584_macsec_dev_stop(struct macsec_context *ctx) +{ + struct vsc8531_private *priv = ctx->phydev->priv; + struct macsec_flow *flow, *tmp; + + /* No operation to perform before the commit step */ + if (ctx->prepare) + return 0; + + list_for_each_entry_safe(flow, tmp, &priv->macsec_flows, list) + vsc8584_macsec_flow_disable(ctx->phydev, flow); + + return 0; +} + +static int vsc8584_macsec_add_secy(struct macsec_context *ctx) +{ + struct vsc8531_private *priv = ctx->phydev->priv; + struct macsec_secy *secy = ctx->secy; + + if (ctx->prepare) { + if (priv->secy) + return -EEXIST; + + return 0; + } + + priv->secy = secy; + + vsc8584_macsec_flow_default_action(ctx->phydev, MACSEC_EGR, + secy->validate_frames != MACSEC_VALIDATE_DISABLED); + vsc8584_macsec_flow_default_action(ctx->phydev, MACSEC_INGR, + secy->validate_frames != MACSEC_VALIDATE_DISABLED); + + return vsc8584_macsec_default_flows(ctx->phydev); +} + +static int vsc8584_macsec_del_secy(struct macsec_context *ctx) +{ + struct vsc8531_private *priv = ctx->phydev->priv; + struct macsec_flow *flow, *tmp; + + /* No operation to perform before the commit step */ + if (ctx->prepare) + return 0; + + list_for_each_entry_safe(flow, tmp, &priv->macsec_flows, list) + vsc8584_macsec_del_flow(ctx->phydev, flow); + + vsc8584_macsec_flow_default_action(ctx->phydev, MACSEC_EGR, false); + vsc8584_macsec_flow_default_action(ctx->phydev, MACSEC_INGR, false); + + priv->secy = NULL; + return 0; +} + +static int vsc8584_macsec_upd_secy(struct macsec_context *ctx) +{ + /* No operation to perform before the commit step */ + if (ctx->prepare) + return 0; + + vsc8584_macsec_del_secy(ctx); + return vsc8584_macsec_add_secy(ctx); +} + +static int vsc8584_macsec_add_rxsc(struct macsec_context *ctx) +{ + /* Nothing to do */ + return 0; +} + +static int vsc8584_macsec_upd_rxsc(struct macsec_context *ctx) +{ + return -EOPNOTSUPP; +} + +static int vsc8584_macsec_del_rxsc(struct macsec_context *ctx) +{ + struct vsc8531_private *priv = ctx->phydev->priv; + struct macsec_flow *flow, *tmp; + + /* No operation to perform before the commit step */ + if (ctx->prepare) + return 0; + + list_for_each_entry_safe(flow, tmp, &priv->macsec_flows, list) { + if (flow->bank == MACSEC_INGR && flow->rx_sa && + flow->rx_sa->sc->sci == ctx->rx_sc->sci) + vsc8584_macsec_del_flow(ctx->phydev, flow); + } + + return 0; +} + +static int vsc8584_macsec_add_rxsa(struct macsec_context *ctx) +{ + struct macsec_flow *flow = NULL; + + if (ctx->prepare) + return __vsc8584_macsec_add_rxsa(ctx, flow, false); + + flow = vsc8584_macsec_find_flow(ctx, MACSEC_INGR); + if (IS_ERR(flow)) + return PTR_ERR(flow); + + vsc8584_macsec_flow_enable(ctx->phydev, flow); + return 0; +} + +static int vsc8584_macsec_upd_rxsa(struct macsec_context *ctx) +{ + struct macsec_flow *flow; + + flow = vsc8584_macsec_find_flow(ctx, MACSEC_INGR); + if (IS_ERR(flow)) + return PTR_ERR(flow); + + if (ctx->prepare) { + /* Make sure the flow is disabled before updating it */ + vsc8584_macsec_flow_disable(ctx->phydev, flow); + + return __vsc8584_macsec_add_rxsa(ctx, flow, true); + } + + vsc8584_macsec_flow_enable(ctx->phydev, flow); + return 0; +} + +static int vsc8584_macsec_del_rxsa(struct macsec_context *ctx) +{ + struct macsec_flow *flow; + + flow = vsc8584_macsec_find_flow(ctx, MACSEC_INGR); + + if (IS_ERR(flow)) + return PTR_ERR(flow); + if (ctx->prepare) + return 0; + + vsc8584_macsec_del_flow(ctx->phydev, flow); + return 0; +} + +static int vsc8584_macsec_add_txsa(struct macsec_context *ctx) +{ + struct macsec_flow *flow = NULL; + + if (ctx->prepare) + return __vsc8584_macsec_add_txsa(ctx, flow, false); + + flow = vsc8584_macsec_find_flow(ctx, MACSEC_EGR); + if (IS_ERR(flow)) + return PTR_ERR(flow); + + vsc8584_macsec_flow_enable(ctx->phydev, flow); + return 0; +} + +static int vsc8584_macsec_upd_txsa(struct macsec_context *ctx) +{ + struct macsec_flow *flow; + + flow = vsc8584_macsec_find_flow(ctx, MACSEC_EGR); + if (IS_ERR(flow)) + return PTR_ERR(flow); + + if (ctx->prepare) { + /* Make sure the flow is disabled before updating it */ + vsc8584_macsec_flow_disable(ctx->phydev, flow); + + return __vsc8584_macsec_add_txsa(ctx, flow, true); + } + + vsc8584_macsec_flow_enable(ctx->phydev, flow); + return 0; +} + +static int vsc8584_macsec_del_txsa(struct macsec_context *ctx) +{ + struct macsec_flow *flow; + + flow = vsc8584_macsec_find_flow(ctx, MACSEC_EGR); + + if (IS_ERR(flow)) + return PTR_ERR(flow); + if (ctx->prepare) + return 0; + + vsc8584_macsec_del_flow(ctx->phydev, flow); + return 0; +} + +static struct macsec_ops vsc8584_macsec_ops = { + .mdo_dev_open = vsc8584_macsec_dev_open, + .mdo_dev_stop = vsc8584_macsec_dev_stop, + .mdo_add_secy = vsc8584_macsec_add_secy, + .mdo_upd_secy = vsc8584_macsec_upd_secy, + .mdo_del_secy = vsc8584_macsec_del_secy, + .mdo_add_rxsc = vsc8584_macsec_add_rxsc, + .mdo_upd_rxsc = vsc8584_macsec_upd_rxsc, + .mdo_del_rxsc = vsc8584_macsec_del_rxsc, + .mdo_add_rxsa = vsc8584_macsec_add_rxsa, + .mdo_upd_rxsa = vsc8584_macsec_upd_rxsa, + .mdo_del_rxsa = vsc8584_macsec_del_rxsa, + .mdo_add_txsa = vsc8584_macsec_add_txsa, + .mdo_upd_txsa = vsc8584_macsec_upd_txsa, + .mdo_del_txsa = vsc8584_macsec_del_txsa, +}; + +int vsc8584_macsec_init(struct phy_device *phydev) +{ + struct vsc8531_private *vsc8531 = phydev->priv; + + switch (phydev->phy_id & phydev->drv->phy_id_mask) { + case PHY_ID_VSC856X: + case PHY_ID_VSC8575: + case PHY_ID_VSC8582: + case PHY_ID_VSC8584: + INIT_LIST_HEAD(&vsc8531->macsec_flows); + vsc8531->secy = NULL; + + phydev->macsec_ops = &vsc8584_macsec_ops; + + return __vsc8584_macsec_init(phydev); + } + + return 0; +} + +void vsc8584_handle_macsec_interrupt(struct phy_device *phydev) +{ + struct vsc8531_private *priv = phydev->priv; + struct macsec_flow *flow, *tmp; + u32 cause, rec; + + /* Check MACsec PN rollover */ + cause = vsc8584_macsec_phy_read(phydev, MACSEC_EGR, + MSCC_MS_INTR_CTRL_STATUS); + cause &= MSCC_MS_INTR_CTRL_STATUS_INTR_CLR_STATUS_M; + if (!(cause & MACSEC_INTR_CTRL_STATUS_ROLLOVER)) + return; + + rec = 6 + priv->secy->key_len / sizeof(u32); + list_for_each_entry_safe(flow, tmp, &priv->macsec_flows, list) { + u32 val; + + if (flow->bank != MACSEC_EGR || !flow->has_transformation) + continue; + + val = vsc8584_macsec_phy_read(phydev, MACSEC_EGR, + MSCC_MS_XFORM_REC(flow->index, rec)); + if (val == 0xffffffff) { + vsc8584_macsec_flow_disable(phydev, flow); + macsec_pn_wrapped(priv->secy, flow->tx_sa); + return; + } + } +} + +void vsc8584_config_macsec_intr(struct phy_device *phydev) +{ + phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_2); + phy_write(phydev, MSCC_PHY_EXTENDED_INT, MSCC_PHY_EXTENDED_INT_MS_EGR); + phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); + + vsc8584_macsec_phy_write(phydev, MACSEC_EGR, MSCC_MS_AIC_CTRL, 0xf); + vsc8584_macsec_phy_write(phydev, MACSEC_EGR, MSCC_MS_INTR_CTRL_STATUS, + MSCC_MS_INTR_CTRL_STATUS_INTR_ENABLE(MACSEC_INTR_CTRL_STATUS_ROLLOVER)); +} diff --git a/drivers/net/phy/mscc/mscc_macsec.h b/drivers/net/phy/mscc/mscc_macsec.h index d9ab6aba7482..c606c9a65d2d 100644 --- a/drivers/net/phy/mscc/mscc_macsec.h +++ b/drivers/net/phy/mscc/mscc_macsec.h @@ -8,6 +8,8 @@ #ifndef _MSCC_OCELOT_MACSEC_H_ #define _MSCC_OCELOT_MACSEC_H_ +#include + #define MSCC_MS_MAX_FLOWS 16 #define CONTROL_TYPE_EGRESS 0x6 @@ -58,6 +60,62 @@ enum mscc_macsec_validate_levels { MSCC_MS_VALIDATE_STRICT = 2, }; +enum macsec_bank { + FC_BUFFER = 0x04, + HOST_MAC = 0x05, + LINE_MAC = 0x06, + IP_1588 = 0x0e, + MACSEC_INGR = 0x38, + MACSEC_EGR = 0x3c, +}; + +struct macsec_flow { + struct list_head list; + enum mscc_macsec_destination_ports port; + enum macsec_bank bank; + u32 index; + int assoc_num; + bool has_transformation; + + /* Highest takes precedence [0..15] */ + u8 priority; + + u8 key[MACSEC_KEYID_LEN]; + + union { + struct macsec_rx_sa *rx_sa; + struct macsec_tx_sa *tx_sa; + }; + + /* Matching */ + struct { + u8 sci:1; + u8 tagged:1; + u8 untagged:1; + u8 etype:1; + } match; + + u16 etype; + + /* Action */ + struct { + u8 bypass:1; + u8 drop:1; + } action; +}; + +#define MSCC_EXT_PAGE_MACSEC_17 17 +#define MSCC_EXT_PAGE_MACSEC_18 18 + +#define MSCC_EXT_PAGE_MACSEC_19 19 +#define MSCC_PHY_MACSEC_19_REG_ADDR(x) (x) +#define MSCC_PHY_MACSEC_19_TARGET(x) ((x) << 12) +#define MSCC_PHY_MACSEC_19_READ BIT(14) +#define MSCC_PHY_MACSEC_19_CMD BIT(15) + +#define MSCC_EXT_PAGE_MACSEC_20 20 +#define MSCC_PHY_MACSEC_20_TARGET(x) (x) + #define MSCC_MS_XFORM_REC(x, y) (((x) << 5) + (y)) #define MSCC_MS_ENA_CFG 0x800 #define MSCC_MS_FC_CFG 0x804 diff --git a/drivers/net/phy/mscc/mscc.c b/drivers/net/phy/mscc/mscc_main.c similarity index 60% rename from drivers/net/phy/mscc/mscc.c rename to drivers/net/phy/mscc/mscc_main.c index b2eac7ee0288..cb4d65f81095 100644 --- a/drivers/net/phy/mscc/mscc.c +++ b/drivers/net/phy/mscc/mscc_main.c @@ -18,361 +18,7 @@ #include #include -#include -#include - -#if IS_ENABLED(CONFIG_MACSEC) -#include -#endif - -#include "mscc_macsec.h" -#include "mscc_mac.h" -#include "mscc_fc_buffer.h" - -enum rgmii_rx_clock_delay { - RGMII_RX_CLK_DELAY_0_2_NS = 0, - RGMII_RX_CLK_DELAY_0_8_NS = 1, - RGMII_RX_CLK_DELAY_1_1_NS = 2, - RGMII_RX_CLK_DELAY_1_7_NS = 3, - RGMII_RX_CLK_DELAY_2_0_NS = 4, - RGMII_RX_CLK_DELAY_2_3_NS = 5, - RGMII_RX_CLK_DELAY_2_6_NS = 6, - RGMII_RX_CLK_DELAY_3_4_NS = 7 -}; - -/* Microsemi VSC85xx PHY registers */ -/* IEEE 802. Std Registers */ -#define MSCC_PHY_BYPASS_CONTROL 18 -#define DISABLE_HP_AUTO_MDIX_MASK 0x0080 -#define DISABLE_PAIR_SWAP_CORR_MASK 0x0020 -#define DISABLE_POLARITY_CORR_MASK 0x0010 -#define PARALLEL_DET_IGNORE_ADVERTISED 0x0008 - -#define MSCC_PHY_EXT_CNTL_STATUS 22 -#define SMI_BROADCAST_WR_EN 0x0001 - -#define MSCC_PHY_ERR_RX_CNT 19 -#define MSCC_PHY_ERR_FALSE_CARRIER_CNT 20 -#define MSCC_PHY_ERR_LINK_DISCONNECT_CNT 21 -#define ERR_CNT_MASK GENMASK(7, 0) - -#define MSCC_PHY_EXT_PHY_CNTL_1 23 -#define MAC_IF_SELECTION_MASK 0x1800 -#define MAC_IF_SELECTION_GMII 0 -#define MAC_IF_SELECTION_RMII 1 -#define MAC_IF_SELECTION_RGMII 2 -#define MAC_IF_SELECTION_POS 11 -#define VSC8584_MAC_IF_SELECTION_MASK 0x1000 -#define VSC8584_MAC_IF_SELECTION_SGMII 0 -#define VSC8584_MAC_IF_SELECTION_1000BASEX 1 -#define VSC8584_MAC_IF_SELECTION_POS 12 -#define FAR_END_LOOPBACK_MODE_MASK 0x0008 -#define MEDIA_OP_MODE_MASK 0x0700 -#define MEDIA_OP_MODE_COPPER 0 -#define MEDIA_OP_MODE_SERDES 1 -#define MEDIA_OP_MODE_1000BASEX 2 -#define MEDIA_OP_MODE_100BASEFX 3 -#define MEDIA_OP_MODE_AMS_COPPER_SERDES 5 -#define MEDIA_OP_MODE_AMS_COPPER_1000BASEX 6 -#define MEDIA_OP_MODE_AMS_COPPER_100BASEFX 7 -#define MEDIA_OP_MODE_POS 8 - -#define MSCC_PHY_EXT_PHY_CNTL_2 24 - -#define MII_VSC85XX_INT_MASK 25 -#define MII_VSC85XX_INT_MASK_MDINT BIT(15) -#define MII_VSC85XX_INT_MASK_LINK_CHG BIT(13) -#define MII_VSC85XX_INT_MASK_WOL BIT(6) -#define MII_VSC85XX_INT_MASK_EXT BIT(5) -#define MII_VSC85XX_INT_STATUS 26 - -#define MII_VSC85XX_INT_MASK_MASK (MII_VSC85XX_INT_MASK_MDINT | \ - MII_VSC85XX_INT_MASK_LINK_CHG | \ - MII_VSC85XX_INT_MASK_EXT) - -#define MSCC_PHY_WOL_MAC_CONTROL 27 -#define EDGE_RATE_CNTL_POS 5 -#define EDGE_RATE_CNTL_MASK 0x00E0 - -#define MSCC_PHY_DEV_AUX_CNTL 28 -#define HP_AUTO_MDIX_X_OVER_IND_MASK 0x2000 - -#define MSCC_PHY_LED_MODE_SEL 29 -#define LED_MODE_SEL_POS(x) ((x) * 4) -#define LED_MODE_SEL_MASK(x) (GENMASK(3, 0) << LED_MODE_SEL_POS(x)) -#define LED_MODE_SEL(x, mode) (((mode) << LED_MODE_SEL_POS(x)) & LED_MODE_SEL_MASK(x)) - -#define MSCC_EXT_PAGE_CSR_CNTL_17 17 -#define MSCC_EXT_PAGE_CSR_CNTL_18 18 - -#define MSCC_EXT_PAGE_CSR_CNTL_19 19 -#define MSCC_PHY_CSR_CNTL_19_REG_ADDR(x) (x) -#define MSCC_PHY_CSR_CNTL_19_TARGET(x) ((x) << 12) -#define MSCC_PHY_CSR_CNTL_19_READ BIT(14) -#define MSCC_PHY_CSR_CNTL_19_CMD BIT(15) - -#define MSCC_EXT_PAGE_CSR_CNTL_20 20 -#define MSCC_PHY_CSR_CNTL_20_TARGET(x) (x) - -#define PHY_MCB_TARGET 0x07 -#define PHY_MCB_S6G_WRITE BIT(31) -#define PHY_MCB_S6G_READ BIT(30) - -#define PHY_S6G_PLL5G_CFG0 0x06 -#define PHY_S6G_LCPLL_CFG 0x11 -#define PHY_S6G_PLL_CFG 0x2b -#define PHY_S6G_COMMON_CFG 0x2c -#define PHY_S6G_GPC_CFG 0x2e -#define PHY_S6G_MISC_CFG 0x3b -#define PHY_MCB_S6G_CFG 0x3f -#define PHY_S6G_DFT_CFG2 0x3e -#define PHY_S6G_PLL_STATUS 0x31 -#define PHY_S6G_IB_STATUS0 0x2f - -#define PHY_S6G_SYS_RST_POS 31 -#define PHY_S6G_ENA_LANE_POS 18 -#define PHY_S6G_ENA_LOOP_POS 8 -#define PHY_S6G_QRATE_POS 6 -#define PHY_S6G_IF_MODE_POS 4 -#define PHY_S6G_PLL_ENA_OFFS_POS 21 -#define PHY_S6G_PLL_FSM_CTRL_DATA_POS 8 -#define PHY_S6G_PLL_FSM_ENA_POS 7 - -#define MSCC_EXT_PAGE_MACSEC_17 17 -#define MSCC_EXT_PAGE_MACSEC_18 18 - -#define MSCC_EXT_PAGE_MACSEC_19 19 -#define MSCC_PHY_MACSEC_19_REG_ADDR(x) (x) -#define MSCC_PHY_MACSEC_19_TARGET(x) ((x) << 12) -#define MSCC_PHY_MACSEC_19_READ BIT(14) -#define MSCC_PHY_MACSEC_19_CMD BIT(15) - -#define MSCC_EXT_PAGE_MACSEC_20 20 -#define MSCC_PHY_MACSEC_20_TARGET(x) (x) -enum macsec_bank { - FC_BUFFER = 0x04, - HOST_MAC = 0x05, - LINE_MAC = 0x06, - IP_1588 = 0x0e, - MACSEC_INGR = 0x38, - MACSEC_EGR = 0x3c, -}; - -#define MSCC_EXT_PAGE_ACCESS 31 -#define MSCC_PHY_PAGE_STANDARD 0x0000 /* Standard registers */ -#define MSCC_PHY_PAGE_EXTENDED 0x0001 /* Extended registers */ -#define MSCC_PHY_PAGE_EXTENDED_2 0x0002 /* Extended reg - page 2 */ -#define MSCC_PHY_PAGE_EXTENDED_3 0x0003 /* Extended reg - page 3 */ -#define MSCC_PHY_PAGE_EXTENDED_4 0x0004 /* Extended reg - page 4 */ -#define MSCC_PHY_PAGE_CSR_CNTL MSCC_PHY_PAGE_EXTENDED_4 -#define MSCC_PHY_PAGE_MACSEC MSCC_PHY_PAGE_EXTENDED_4 -/* Extended reg - GPIO; this is a bank of registers that are shared for all PHYs - * in the same package. - */ -#define MSCC_PHY_PAGE_EXTENDED_GPIO 0x0010 /* Extended reg - GPIO */ -#define MSCC_PHY_PAGE_TEST 0x2a30 /* Test reg */ -#define MSCC_PHY_PAGE_TR 0x52b5 /* Token ring registers */ - -/* Extended Page 1 Registers */ -#define MSCC_PHY_CU_MEDIA_CRC_VALID_CNT 18 -#define VALID_CRC_CNT_CRC_MASK GENMASK(13, 0) - -#define MSCC_PHY_EXT_MODE_CNTL 19 -#define FORCE_MDI_CROSSOVER_MASK 0x000C -#define FORCE_MDI_CROSSOVER_MDIX 0x000C -#define FORCE_MDI_CROSSOVER_MDI 0x0008 - -#define MSCC_PHY_ACTIPHY_CNTL 20 -#define PHY_ADDR_REVERSED 0x0200 -#define DOWNSHIFT_CNTL_MASK 0x001C -#define DOWNSHIFT_EN 0x0010 -#define DOWNSHIFT_CNTL_POS 2 - -#define MSCC_PHY_EXT_PHY_CNTL_4 23 -#define PHY_CNTL_4_ADDR_POS 11 - -#define MSCC_PHY_VERIPHY_CNTL_2 25 - -#define MSCC_PHY_VERIPHY_CNTL_3 26 - -/* Extended Page 2 Registers */ -#define MSCC_PHY_CU_PMD_TX_CNTL 16 - -#define MSCC_PHY_RGMII_CNTL 20 -#define RGMII_RX_CLK_DELAY_MASK 0x0070 -#define RGMII_RX_CLK_DELAY_POS 4 - -#define MSCC_PHY_WOL_LOWER_MAC_ADDR 21 -#define MSCC_PHY_WOL_MID_MAC_ADDR 22 -#define MSCC_PHY_WOL_UPPER_MAC_ADDR 23 -#define MSCC_PHY_WOL_LOWER_PASSWD 24 -#define MSCC_PHY_WOL_MID_PASSWD 25 -#define MSCC_PHY_WOL_UPPER_PASSWD 26 - -#define MSCC_PHY_WOL_MAC_CONTROL 27 -#define SECURE_ON_ENABLE 0x8000 -#define SECURE_ON_PASSWD_LEN_4 0x4000 - -#define MSCC_PHY_EXTENDED_INT 28 -#define MSCC_PHY_EXTENDED_INT_MS_EGR BIT(9) - -/* Extended Page 3 Registers */ -#define MSCC_PHY_SERDES_TX_VALID_CNT 21 -#define MSCC_PHY_SERDES_TX_CRC_ERR_CNT 22 -#define MSCC_PHY_SERDES_RX_VALID_CNT 28 -#define MSCC_PHY_SERDES_RX_CRC_ERR_CNT 29 - -/* Extended page GPIO Registers */ -#define MSCC_DW8051_CNTL_STATUS 0 -#define MICRO_NSOFT_RESET 0x8000 -#define RUN_FROM_INT_ROM 0x4000 -#define AUTOINC_ADDR 0x2000 -#define PATCH_RAM_CLK 0x1000 -#define MICRO_PATCH_EN 0x0080 -#define DW8051_CLK_EN 0x0010 -#define MICRO_CLK_EN 0x0008 -#define MICRO_CLK_DIVIDE(x) ((x) >> 1) -#define MSCC_DW8051_VLD_MASK 0xf1ff - -/* x Address in range 1-4 */ -#define MSCC_TRAP_ROM_ADDR(x) ((x) * 2 + 1) -#define MSCC_PATCH_RAM_ADDR(x) (((x) + 1) * 2) -#define MSCC_INT_MEM_ADDR 11 - -#define MSCC_INT_MEM_CNTL 12 -#define READ_SFR 0x6000 -#define READ_PRAM 0x4000 -#define READ_ROM 0x2000 -#define READ_RAM 0x0000 -#define INT_MEM_WRITE_EN 0x1000 -#define EN_PATCH_RAM_TRAP_ADDR(x) (0x0100 << ((x) - 1)) -#define INT_MEM_DATA_M 0x00ff -#define INT_MEM_DATA(x) (INT_MEM_DATA_M & (x)) - -#define MSCC_PHY_PROC_CMD 18 -#define PROC_CMD_NCOMPLETED 0x8000 -#define PROC_CMD_FAILED 0x4000 -#define PROC_CMD_SGMII_PORT(x) ((x) << 8) -#define PROC_CMD_FIBER_PORT(x) (0x0100 << (x) % 4) -#define PROC_CMD_QSGMII_PORT 0x0c00 -#define PROC_CMD_RST_CONF_PORT 0x0080 -#define PROC_CMD_RECONF_PORT 0x0000 -#define PROC_CMD_READ_MOD_WRITE_PORT 0x0040 -#define PROC_CMD_WRITE 0x0040 -#define PROC_CMD_READ 0x0000 -#define PROC_CMD_FIBER_DISABLE 0x0020 -#define PROC_CMD_FIBER_100BASE_FX 0x0010 -#define PROC_CMD_FIBER_1000BASE_X 0x0000 -#define PROC_CMD_SGMII_MAC 0x0030 -#define PROC_CMD_QSGMII_MAC 0x0020 -#define PROC_CMD_NO_MAC_CONF 0x0000 -#define PROC_CMD_1588_DEFAULT_INIT 0x0010 -#define PROC_CMD_NOP 0x000f -#define PROC_CMD_PHY_INIT 0x000a -#define PROC_CMD_CRC16 0x0008 -#define PROC_CMD_FIBER_MEDIA_CONF 0x0001 -#define PROC_CMD_MCB_ACCESS_MAC_CONF 0x0000 -#define PROC_CMD_NCOMPLETED_TIMEOUT_MS 500 - -#define MSCC_PHY_MAC_CFG_FASTLINK 19 -#define MAC_CFG_MASK 0xc000 -#define MAC_CFG_SGMII 0x0000 -#define MAC_CFG_QSGMII 0x4000 - -/* Test page Registers */ -#define MSCC_PHY_TEST_PAGE_5 5 -#define MSCC_PHY_TEST_PAGE_8 8 -#define MSCC_PHY_TEST_PAGE_9 9 -#define MSCC_PHY_TEST_PAGE_20 20 -#define MSCC_PHY_TEST_PAGE_24 24 - -/* Token ring page Registers */ -#define MSCC_PHY_TR_CNTL 16 -#define TR_WRITE 0x8000 -#define TR_ADDR(x) (0x7fff & (x)) -#define MSCC_PHY_TR_LSB 17 -#define MSCC_PHY_TR_MSB 18 - -/* Microsemi PHY ID's - * Code assumes lowest nibble is 0 - */ -#define PHY_ID_VSC8504 0x000704c0 -#define PHY_ID_VSC8514 0x00070670 -#define PHY_ID_VSC8530 0x00070560 -#define PHY_ID_VSC8531 0x00070570 -#define PHY_ID_VSC8540 0x00070760 -#define PHY_ID_VSC8541 0x00070770 -#define PHY_ID_VSC8552 0x000704e0 -#define PHY_ID_VSC856X 0x000707e0 -#define PHY_ID_VSC8572 0x000704d0 -#define PHY_ID_VSC8574 0x000704a0 -#define PHY_ID_VSC8575 0x000707d0 -#define PHY_ID_VSC8582 0x000707b0 -#define PHY_ID_VSC8584 0x000707c0 - -#define MSCC_VDDMAC_1500 1500 -#define MSCC_VDDMAC_1800 1800 -#define MSCC_VDDMAC_2500 2500 -#define MSCC_VDDMAC_3300 3300 - -#define DOWNSHIFT_COUNT_MAX 5 - -#define MAX_LEDS 4 - -#define VSC8584_SUPP_LED_MODES (BIT(VSC8531_LINK_ACTIVITY) | \ - BIT(VSC8531_LINK_1000_ACTIVITY) | \ - BIT(VSC8531_LINK_100_ACTIVITY) | \ - BIT(VSC8531_LINK_10_ACTIVITY) | \ - BIT(VSC8531_LINK_100_1000_ACTIVITY) | \ - BIT(VSC8531_LINK_10_1000_ACTIVITY) | \ - BIT(VSC8531_LINK_10_100_ACTIVITY) | \ - BIT(VSC8584_LINK_100FX_1000X_ACTIVITY) | \ - BIT(VSC8531_DUPLEX_COLLISION) | \ - BIT(VSC8531_COLLISION) | \ - BIT(VSC8531_ACTIVITY) | \ - BIT(VSC8584_100FX_1000X_ACTIVITY) | \ - BIT(VSC8531_AUTONEG_FAULT) | \ - BIT(VSC8531_SERIAL_MODE) | \ - BIT(VSC8531_FORCE_LED_OFF) | \ - BIT(VSC8531_FORCE_LED_ON)) - -#define VSC85XX_SUPP_LED_MODES (BIT(VSC8531_LINK_ACTIVITY) | \ - BIT(VSC8531_LINK_1000_ACTIVITY) | \ - BIT(VSC8531_LINK_100_ACTIVITY) | \ - BIT(VSC8531_LINK_10_ACTIVITY) | \ - BIT(VSC8531_LINK_100_1000_ACTIVITY) | \ - BIT(VSC8531_LINK_10_1000_ACTIVITY) | \ - BIT(VSC8531_LINK_10_100_ACTIVITY) | \ - BIT(VSC8531_DUPLEX_COLLISION) | \ - BIT(VSC8531_COLLISION) | \ - BIT(VSC8531_ACTIVITY) | \ - BIT(VSC8531_AUTONEG_FAULT) | \ - BIT(VSC8531_SERIAL_MODE) | \ - BIT(VSC8531_FORCE_LED_OFF) | \ - BIT(VSC8531_FORCE_LED_ON)) - -#define MSCC_VSC8584_REVB_INT8051_FW "microchip/mscc_vsc8584_revb_int8051_fb48.bin" -#define MSCC_VSC8584_REVB_INT8051_FW_START_ADDR 0xe800 -#define MSCC_VSC8584_REVB_INT8051_FW_CRC 0xfb48 - -#define MSCC_VSC8574_REVB_INT8051_FW "microchip/mscc_vsc8574_revb_int8051_29e8.bin" -#define MSCC_VSC8574_REVB_INT8051_FW_START_ADDR 0x4000 -#define MSCC_VSC8574_REVB_INT8051_FW_CRC 0x29e8 - -#define VSC8584_REVB 0x0001 -#define MSCC_DEV_REV_MASK GENMASK(3, 0) - -struct reg_val { - u16 reg; - u32 val; -}; - -struct vsc85xx_hw_stat { - const char *string; - u8 reg; - u16 page; - u16 mask; -}; +#include "mscc.h" static const struct vsc85xx_hw_stat vsc85xx_hw_stats[] = { { @@ -452,85 +98,14 @@ static const struct vsc85xx_hw_stat vsc8584_hw_stats[] = { }, }; -#if IS_ENABLED(CONFIG_MACSEC) -struct macsec_flow { - struct list_head list; - enum mscc_macsec_destination_ports port; - enum macsec_bank bank; - u32 index; - int assoc_num; - bool has_transformation; - - /* Highest takes precedence [0..15] */ - u8 priority; - - u8 key[MACSEC_KEYID_LEN]; - - union { - struct macsec_rx_sa *rx_sa; - struct macsec_tx_sa *tx_sa; - }; - - /* Matching */ - struct { - u8 sci:1; - u8 tagged:1; - u8 untagged:1; - u8 etype:1; - } match; - - u16 etype; - - /* Action */ - struct { - u8 bypass:1; - u8 drop:1; - } action; - -}; -#endif - -struct vsc8531_private { - int rate_magic; - u16 supp_led_modes; - u32 leds_mode[MAX_LEDS]; - u8 nleds; - const struct vsc85xx_hw_stat *hw_stats; - u64 *stats; - int nstats; - bool pkg_init; - /* For multiple port PHYs; the MDIO address of the base PHY in the - * package. - */ - unsigned int base_addr; - -#if IS_ENABLED(CONFIG_MACSEC) - /* MACsec fields: - * - One SecY per device (enforced at the s/w implementation level) - * - macsec_flows: list of h/w flows - * - ingr_flows: bitmap of ingress flows - * - egr_flows: bitmap of egress flows - */ - struct macsec_secy *secy; - struct list_head macsec_flows; - unsigned long ingr_flows; - unsigned long egr_flows; -#endif -}; - #ifdef CONFIG_OF_MDIO -struct vsc8531_edge_rate_table { - u32 vddmac; - u32 slowdown[8]; -}; - static const struct vsc8531_edge_rate_table edge_table[] = { {MSCC_VDDMAC_3300, { 0, 2, 4, 7, 10, 17, 29, 53} }, {MSCC_VDDMAC_2500, { 0, 3, 6, 10, 14, 23, 37, 63} }, {MSCC_VDDMAC_1800, { 0, 5, 9, 16, 23, 35, 52, 76} }, {MSCC_VDDMAC_1500, { 0, 6, 14, 21, 29, 42, 58, 77} }, }; -#endif /* CONFIG_OF_MDIO */ +#endif static int vsc85xx_phy_read_page(struct phy_device *phydev) { @@ -1676,978 +1251,6 @@ out: return ret; } -#if IS_ENABLED(CONFIG_MACSEC) -static u32 vsc8584_macsec_phy_read(struct phy_device *phydev, - enum macsec_bank bank, u32 reg) -{ - u32 val, val_l = 0, val_h = 0; - unsigned long deadline; - int rc; - - rc = phy_select_page(phydev, MSCC_PHY_PAGE_MACSEC); - if (rc < 0) - goto failed; - - __phy_write(phydev, MSCC_EXT_PAGE_MACSEC_20, - MSCC_PHY_MACSEC_20_TARGET(bank >> 2)); - - if (bank >> 2 == 0x1) - /* non-MACsec access */ - bank &= 0x3; - else - bank = 0; - - __phy_write(phydev, MSCC_EXT_PAGE_MACSEC_19, - MSCC_PHY_MACSEC_19_CMD | MSCC_PHY_MACSEC_19_READ | - MSCC_PHY_MACSEC_19_REG_ADDR(reg) | - MSCC_PHY_MACSEC_19_TARGET(bank)); - - deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); - do { - val = __phy_read(phydev, MSCC_EXT_PAGE_MACSEC_19); - } while (time_before(jiffies, deadline) && !(val & MSCC_PHY_MACSEC_19_CMD)); - - val_l = __phy_read(phydev, MSCC_EXT_PAGE_MACSEC_17); - val_h = __phy_read(phydev, MSCC_EXT_PAGE_MACSEC_18); - -failed: - phy_restore_page(phydev, rc, rc); - - return (val_h << 16) | val_l; -} - -static void vsc8584_macsec_phy_write(struct phy_device *phydev, - enum macsec_bank bank, u32 reg, u32 val) -{ - unsigned long deadline; - int rc; - - rc = phy_select_page(phydev, MSCC_PHY_PAGE_MACSEC); - if (rc < 0) - goto failed; - - __phy_write(phydev, MSCC_EXT_PAGE_MACSEC_20, - MSCC_PHY_MACSEC_20_TARGET(bank >> 2)); - - if ((bank >> 2 == 0x1) || (bank >> 2 == 0x3)) - bank &= 0x3; - else - /* MACsec access */ - bank = 0; - - __phy_write(phydev, MSCC_EXT_PAGE_MACSEC_17, (u16)val); - __phy_write(phydev, MSCC_EXT_PAGE_MACSEC_18, (u16)(val >> 16)); - - __phy_write(phydev, MSCC_EXT_PAGE_MACSEC_19, - MSCC_PHY_MACSEC_19_CMD | MSCC_PHY_MACSEC_19_REG_ADDR(reg) | - MSCC_PHY_MACSEC_19_TARGET(bank)); - - deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS); - do { - val = __phy_read(phydev, MSCC_EXT_PAGE_MACSEC_19); - } while (time_before(jiffies, deadline) && !(val & MSCC_PHY_MACSEC_19_CMD)); - -failed: - phy_restore_page(phydev, rc, rc); -} - -static void vsc8584_macsec_classification(struct phy_device *phydev, - enum macsec_bank bank) -{ - /* enable VLAN tag parsing */ - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_CP_TAG, - MSCC_MS_SAM_CP_TAG_PARSE_STAG | - MSCC_MS_SAM_CP_TAG_PARSE_QTAG | - MSCC_MS_SAM_CP_TAG_PARSE_QINQ); -} - -static void vsc8584_macsec_flow_default_action(struct phy_device *phydev, - enum macsec_bank bank, - bool block) -{ - u32 port = (bank == MACSEC_INGR) ? - MSCC_MS_PORT_UNCONTROLLED : MSCC_MS_PORT_COMMON; - u32 action = MSCC_MS_FLOW_BYPASS; - - if (block) - action = MSCC_MS_FLOW_DROP; - - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_NM_FLOW_NCP, - /* MACsec untagged */ - MSCC_MS_SAM_NM_FLOW_NCP_UNTAGGED_FLOW_TYPE(action) | - MSCC_MS_SAM_NM_FLOW_NCP_UNTAGGED_DROP_ACTION(MSCC_MS_ACTION_DROP) | - MSCC_MS_SAM_NM_FLOW_NCP_UNTAGGED_DEST_PORT(port) | - /* MACsec tagged */ - MSCC_MS_SAM_NM_FLOW_NCP_TAGGED_FLOW_TYPE(action) | - MSCC_MS_SAM_NM_FLOW_NCP_TAGGED_DROP_ACTION(MSCC_MS_ACTION_DROP) | - MSCC_MS_SAM_NM_FLOW_NCP_TAGGED_DEST_PORT(port) | - /* Bad tag */ - MSCC_MS_SAM_NM_FLOW_NCP_BADTAG_FLOW_TYPE(action) | - MSCC_MS_SAM_NM_FLOW_NCP_BADTAG_DROP_ACTION(MSCC_MS_ACTION_DROP) | - MSCC_MS_SAM_NM_FLOW_NCP_BADTAG_DEST_PORT(port) | - /* Kay tag */ - MSCC_MS_SAM_NM_FLOW_NCP_KAY_FLOW_TYPE(action) | - MSCC_MS_SAM_NM_FLOW_NCP_KAY_DROP_ACTION(MSCC_MS_ACTION_DROP) | - MSCC_MS_SAM_NM_FLOW_NCP_KAY_DEST_PORT(port)); - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_NM_FLOW_CP, - /* MACsec untagged */ - MSCC_MS_SAM_NM_FLOW_NCP_UNTAGGED_FLOW_TYPE(action) | - MSCC_MS_SAM_NM_FLOW_CP_UNTAGGED_DROP_ACTION(MSCC_MS_ACTION_DROP) | - MSCC_MS_SAM_NM_FLOW_CP_UNTAGGED_DEST_PORT(port) | - /* MACsec tagged */ - MSCC_MS_SAM_NM_FLOW_NCP_TAGGED_FLOW_TYPE(action) | - MSCC_MS_SAM_NM_FLOW_CP_TAGGED_DROP_ACTION(MSCC_MS_ACTION_DROP) | - MSCC_MS_SAM_NM_FLOW_CP_TAGGED_DEST_PORT(port) | - /* Bad tag */ - MSCC_MS_SAM_NM_FLOW_NCP_BADTAG_FLOW_TYPE(action) | - MSCC_MS_SAM_NM_FLOW_CP_BADTAG_DROP_ACTION(MSCC_MS_ACTION_DROP) | - MSCC_MS_SAM_NM_FLOW_CP_BADTAG_DEST_PORT(port) | - /* Kay tag */ - MSCC_MS_SAM_NM_FLOW_NCP_KAY_FLOW_TYPE(action) | - MSCC_MS_SAM_NM_FLOW_CP_KAY_DROP_ACTION(MSCC_MS_ACTION_DROP) | - MSCC_MS_SAM_NM_FLOW_CP_KAY_DEST_PORT(port)); -} - -static void vsc8584_macsec_integrity_checks(struct phy_device *phydev, - enum macsec_bank bank) -{ - u32 val; - - if (bank != MACSEC_INGR) - return; - - /* Set default rules to pass unmatched frames */ - val = vsc8584_macsec_phy_read(phydev, bank, - MSCC_MS_PARAMS2_IG_CC_CONTROL); - val |= MSCC_MS_PARAMS2_IG_CC_CONTROL_NON_MATCH_CTRL_ACT | - MSCC_MS_PARAMS2_IG_CC_CONTROL_NON_MATCH_ACT; - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_PARAMS2_IG_CC_CONTROL, - val); - - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_PARAMS2_IG_CP_TAG, - MSCC_MS_PARAMS2_IG_CP_TAG_PARSE_STAG | - MSCC_MS_PARAMS2_IG_CP_TAG_PARSE_QTAG | - MSCC_MS_PARAMS2_IG_CP_TAG_PARSE_QINQ); -} - -static void vsc8584_macsec_block_init(struct phy_device *phydev, - enum macsec_bank bank) -{ - u32 val; - int i; - - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_ENA_CFG, - MSCC_MS_ENA_CFG_SW_RST | - MSCC_MS_ENA_CFG_MACSEC_BYPASS_ENA); - - /* Set the MACsec block out of s/w reset and enable clocks */ - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_ENA_CFG, - MSCC_MS_ENA_CFG_CLK_ENA); - - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_STATUS_CONTEXT_CTRL, - bank == MACSEC_INGR ? 0xe5880214 : 0xe5880218); - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_MISC_CONTROL, - MSCC_MS_MISC_CONTROL_MC_LATENCY_FIX(bank == MACSEC_INGR ? 57 : 40) | - MSCC_MS_MISC_CONTROL_XFORM_REC_SIZE(bank == MACSEC_INGR ? 1 : 2)); - - /* Clear the counters */ - val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MS_COUNT_CONTROL); - val |= MSCC_MS_COUNT_CONTROL_AUTO_CNTR_RESET; - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_COUNT_CONTROL, val); - - /* Enable octet increment mode */ - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_PP_CTRL, - MSCC_MS_PP_CTRL_MACSEC_OCTET_INCR_MODE); - - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_BLOCK_CTX_UPDATE, 0x3); - - val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MS_COUNT_CONTROL); - val |= MSCC_MS_COUNT_CONTROL_RESET_ALL; - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_COUNT_CONTROL, val); - - /* Set the MTU */ - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_NON_VLAN_MTU_CHECK, - MSCC_MS_NON_VLAN_MTU_CHECK_NV_MTU_COMPARE(32761) | - MSCC_MS_NON_VLAN_MTU_CHECK_NV_MTU_COMP_DROP); - - for (i = 0; i < 8; i++) - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_VLAN_MTU_CHECK(i), - MSCC_MS_VLAN_MTU_CHECK_MTU_COMPARE(32761) | - MSCC_MS_VLAN_MTU_CHECK_MTU_COMP_DROP); - - if (bank == MACSEC_EGR) { - val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MS_INTR_CTRL_STATUS); - val &= ~MSCC_MS_INTR_CTRL_STATUS_INTR_ENABLE_M; - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_INTR_CTRL_STATUS, val); - - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_FC_CFG, - MSCC_MS_FC_CFG_FCBUF_ENA | - MSCC_MS_FC_CFG_LOW_THRESH(0x1) | - MSCC_MS_FC_CFG_HIGH_THRESH(0x4) | - MSCC_MS_FC_CFG_LOW_BYTES_VAL(0x4) | - MSCC_MS_FC_CFG_HIGH_BYTES_VAL(0x6)); - } - - vsc8584_macsec_classification(phydev, bank); - vsc8584_macsec_flow_default_action(phydev, bank, false); - vsc8584_macsec_integrity_checks(phydev, bank); - - /* Enable the MACsec block */ - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_ENA_CFG, - MSCC_MS_ENA_CFG_CLK_ENA | - MSCC_MS_ENA_CFG_MACSEC_ENA | - MSCC_MS_ENA_CFG_MACSEC_SPEED_MODE(0x5)); -} - -static void vsc8584_macsec_mac_init(struct phy_device *phydev, - enum macsec_bank bank) -{ - u32 val; - int i; - - /* Clear host & line stats */ - for (i = 0; i < 36; i++) - vsc8584_macsec_phy_write(phydev, bank, 0x1c + i, 0); - - val = vsc8584_macsec_phy_read(phydev, bank, - MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL); - val &= ~MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL_PAUSE_MODE_M; - val |= MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL_PAUSE_MODE(2) | - MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL_PAUSE_VALUE(0xffff); - vsc8584_macsec_phy_write(phydev, bank, - MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL, val); - - val = vsc8584_macsec_phy_read(phydev, bank, - MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL_2); - val |= 0xffff; - vsc8584_macsec_phy_write(phydev, bank, - MSCC_MAC_PAUSE_CFG_TX_FRAME_CTRL_2, val); - - val = vsc8584_macsec_phy_read(phydev, bank, - MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL); - if (bank == HOST_MAC) - val |= MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL_PAUSE_TIMER_ENA | - MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL_PAUSE_FRAME_DROP_ENA; - else - val |= MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL_PAUSE_REACT_ENA | - MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL_PAUSE_FRAME_DROP_ENA | - MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL_PAUSE_MODE | - MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL_EARLY_PAUSE_DETECT_ENA; - vsc8584_macsec_phy_write(phydev, bank, - MSCC_MAC_PAUSE_CFG_RX_FRAME_CTRL, val); - - vsc8584_macsec_phy_write(phydev, bank, MSCC_MAC_CFG_PKTINF_CFG, - MSCC_MAC_CFG_PKTINF_CFG_STRIP_FCS_ENA | - MSCC_MAC_CFG_PKTINF_CFG_INSERT_FCS_ENA | - MSCC_MAC_CFG_PKTINF_CFG_LPI_RELAY_ENA | - MSCC_MAC_CFG_PKTINF_CFG_STRIP_PREAMBLE_ENA | - MSCC_MAC_CFG_PKTINF_CFG_INSERT_PREAMBLE_ENA | - (bank == HOST_MAC ? - MSCC_MAC_CFG_PKTINF_CFG_ENABLE_TX_PADDING : 0)); - - val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MAC_CFG_MODE_CFG); - val &= ~MSCC_MAC_CFG_MODE_CFG_DISABLE_DIC; - vsc8584_macsec_phy_write(phydev, bank, MSCC_MAC_CFG_MODE_CFG, val); - - val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MAC_CFG_MAXLEN_CFG); - val &= ~MSCC_MAC_CFG_MAXLEN_CFG_MAX_LEN_M; - val |= MSCC_MAC_CFG_MAXLEN_CFG_MAX_LEN(10240); - vsc8584_macsec_phy_write(phydev, bank, MSCC_MAC_CFG_MAXLEN_CFG, val); - - vsc8584_macsec_phy_write(phydev, bank, MSCC_MAC_CFG_ADV_CHK_CFG, - MSCC_MAC_CFG_ADV_CHK_CFG_SFD_CHK_ENA | - MSCC_MAC_CFG_ADV_CHK_CFG_PRM_CHK_ENA | - MSCC_MAC_CFG_ADV_CHK_CFG_OOR_ERR_ENA | - MSCC_MAC_CFG_ADV_CHK_CFG_INR_ERR_ENA); - - val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MAC_CFG_LFS_CFG); - val &= ~MSCC_MAC_CFG_LFS_CFG_LFS_MODE_ENA; - vsc8584_macsec_phy_write(phydev, bank, MSCC_MAC_CFG_LFS_CFG, val); - - vsc8584_macsec_phy_write(phydev, bank, MSCC_MAC_CFG_ENA_CFG, - MSCC_MAC_CFG_ENA_CFG_RX_CLK_ENA | - MSCC_MAC_CFG_ENA_CFG_TX_CLK_ENA | - MSCC_MAC_CFG_ENA_CFG_RX_ENA | - MSCC_MAC_CFG_ENA_CFG_TX_ENA); -} - -/* Must be called with mdio_lock taken */ -static int vsc8584_macsec_init(struct phy_device *phydev) -{ - u32 val; - - vsc8584_macsec_block_init(phydev, MACSEC_INGR); - vsc8584_macsec_block_init(phydev, MACSEC_EGR); - vsc8584_macsec_mac_init(phydev, HOST_MAC); - vsc8584_macsec_mac_init(phydev, LINE_MAC); - - vsc8584_macsec_phy_write(phydev, FC_BUFFER, - MSCC_FCBUF_FC_READ_THRESH_CFG, - MSCC_FCBUF_FC_READ_THRESH_CFG_TX_THRESH(4) | - MSCC_FCBUF_FC_READ_THRESH_CFG_RX_THRESH(5)); - - val = vsc8584_macsec_phy_read(phydev, FC_BUFFER, MSCC_FCBUF_MODE_CFG); - val |= MSCC_FCBUF_MODE_CFG_PAUSE_GEN_ENA | - MSCC_FCBUF_MODE_CFG_RX_PPM_RATE_ADAPT_ENA | - MSCC_FCBUF_MODE_CFG_TX_PPM_RATE_ADAPT_ENA; - vsc8584_macsec_phy_write(phydev, FC_BUFFER, MSCC_FCBUF_MODE_CFG, val); - - vsc8584_macsec_phy_write(phydev, FC_BUFFER, MSCC_FCBUF_PPM_RATE_ADAPT_THRESH_CFG, - MSCC_FCBUF_PPM_RATE_ADAPT_THRESH_CFG_TX_THRESH(8) | - MSCC_FCBUF_PPM_RATE_ADAPT_THRESH_CFG_TX_OFFSET(9)); - - val = vsc8584_macsec_phy_read(phydev, FC_BUFFER, - MSCC_FCBUF_TX_DATA_QUEUE_CFG); - val &= ~(MSCC_FCBUF_TX_DATA_QUEUE_CFG_START_M | - MSCC_FCBUF_TX_DATA_QUEUE_CFG_END_M); - val |= MSCC_FCBUF_TX_DATA_QUEUE_CFG_START(0) | - MSCC_FCBUF_TX_DATA_QUEUE_CFG_END(5119); - vsc8584_macsec_phy_write(phydev, FC_BUFFER, - MSCC_FCBUF_TX_DATA_QUEUE_CFG, val); - - val = vsc8584_macsec_phy_read(phydev, FC_BUFFER, MSCC_FCBUF_ENA_CFG); - val |= MSCC_FCBUF_ENA_CFG_TX_ENA | MSCC_FCBUF_ENA_CFG_RX_ENA; - vsc8584_macsec_phy_write(phydev, FC_BUFFER, MSCC_FCBUF_ENA_CFG, val); - - val = vsc8584_macsec_phy_read(phydev, IP_1588, - MSCC_PROC_0_IP_1588_TOP_CFG_STAT_MODE_CTL); - val &= ~MSCC_PROC_0_IP_1588_TOP_CFG_STAT_MODE_CTL_PROTOCOL_MODE_M; - val |= MSCC_PROC_0_IP_1588_TOP_CFG_STAT_MODE_CTL_PROTOCOL_MODE(4); - vsc8584_macsec_phy_write(phydev, IP_1588, - MSCC_PROC_0_IP_1588_TOP_CFG_STAT_MODE_CTL, val); - - return 0; -} - -static void vsc8584_macsec_flow(struct phy_device *phydev, - struct macsec_flow *flow) -{ - struct vsc8531_private *priv = phydev->priv; - enum macsec_bank bank = flow->bank; - u32 val, match = 0, mask = 0, action = 0, idx = flow->index; - - if (flow->match.tagged) - match |= MSCC_MS_SAM_MISC_MATCH_TAGGED; - if (flow->match.untagged) - match |= MSCC_MS_SAM_MISC_MATCH_UNTAGGED; - - if (bank == MACSEC_INGR && flow->assoc_num >= 0) { - match |= MSCC_MS_SAM_MISC_MATCH_AN(flow->assoc_num); - mask |= MSCC_MS_SAM_MASK_AN_MASK(0x3); - } - - if (bank == MACSEC_INGR && flow->match.sci && flow->rx_sa->sc->sci) { - match |= MSCC_MS_SAM_MISC_MATCH_TCI(BIT(3)); - mask |= MSCC_MS_SAM_MASK_TCI_MASK(BIT(3)) | - MSCC_MS_SAM_MASK_SCI_MASK; - - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_MATCH_SCI_LO(idx), - lower_32_bits(flow->rx_sa->sc->sci)); - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_MATCH_SCI_HI(idx), - upper_32_bits(flow->rx_sa->sc->sci)); - } - - if (flow->match.etype) { - mask |= MSCC_MS_SAM_MASK_MAC_ETYPE_MASK; - - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_MAC_SA_MATCH_HI(idx), - MSCC_MS_SAM_MAC_SA_MATCH_HI_ETYPE(htons(flow->etype))); - } - - match |= MSCC_MS_SAM_MISC_MATCH_PRIORITY(flow->priority); - - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_MISC_MATCH(idx), match); - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_MASK(idx), mask); - - /* Action for matching packets */ - if (flow->action.drop) - action = MSCC_MS_FLOW_DROP; - else if (flow->action.bypass || flow->port == MSCC_MS_PORT_UNCONTROLLED) - action = MSCC_MS_FLOW_BYPASS; - else - action = (bank == MACSEC_INGR) ? - MSCC_MS_FLOW_INGRESS : MSCC_MS_FLOW_EGRESS; - - val = MSCC_MS_SAM_FLOW_CTRL_FLOW_TYPE(action) | - MSCC_MS_SAM_FLOW_CTRL_DROP_ACTION(MSCC_MS_ACTION_DROP) | - MSCC_MS_SAM_FLOW_CTRL_DEST_PORT(flow->port); - - if (action == MSCC_MS_FLOW_BYPASS) - goto write_ctrl; - - if (bank == MACSEC_INGR) { - if (priv->secy->replay_protect) - val |= MSCC_MS_SAM_FLOW_CTRL_REPLAY_PROTECT; - if (priv->secy->validate_frames == MACSEC_VALIDATE_STRICT) - val |= MSCC_MS_SAM_FLOW_CTRL_VALIDATE_FRAMES(MSCC_MS_VALIDATE_STRICT); - else if (priv->secy->validate_frames == MACSEC_VALIDATE_CHECK) - val |= MSCC_MS_SAM_FLOW_CTRL_VALIDATE_FRAMES(MSCC_MS_VALIDATE_CHECK); - } else if (bank == MACSEC_EGR) { - if (priv->secy->protect_frames) - val |= MSCC_MS_SAM_FLOW_CTRL_PROTECT_FRAME; - if (priv->secy->tx_sc.encrypt) - val |= MSCC_MS_SAM_FLOW_CTRL_CONF_PROTECT; - if (priv->secy->tx_sc.send_sci) - val |= MSCC_MS_SAM_FLOW_CTRL_INCLUDE_SCI; - } - -write_ctrl: - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_FLOW_CTRL(idx), val); -} - -static struct macsec_flow *vsc8584_macsec_find_flow(struct macsec_context *ctx, - enum macsec_bank bank) -{ - struct vsc8531_private *priv = ctx->phydev->priv; - struct macsec_flow *pos, *tmp; - - list_for_each_entry_safe(pos, tmp, &priv->macsec_flows, list) - if (pos->assoc_num == ctx->sa.assoc_num && pos->bank == bank) - return pos; - - return ERR_PTR(-ENOENT); -} - -static void vsc8584_macsec_flow_enable(struct phy_device *phydev, - struct macsec_flow *flow) -{ - enum macsec_bank bank = flow->bank; - u32 val, idx = flow->index; - - if ((flow->bank == MACSEC_INGR && flow->rx_sa && !flow->rx_sa->active) || - (flow->bank == MACSEC_EGR && flow->tx_sa && !flow->tx_sa->active)) - return; - - /* Enable */ - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_ENTRY_SET1, BIT(idx)); - - /* Set in-use */ - val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MS_SAM_FLOW_CTRL(idx)); - val |= MSCC_MS_SAM_FLOW_CTRL_SA_IN_USE; - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_FLOW_CTRL(idx), val); -} - -static void vsc8584_macsec_flow_disable(struct phy_device *phydev, - struct macsec_flow *flow) -{ - enum macsec_bank bank = flow->bank; - u32 val, idx = flow->index; - - /* Disable */ - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_ENTRY_CLEAR1, BIT(idx)); - - /* Clear in-use */ - val = vsc8584_macsec_phy_read(phydev, bank, MSCC_MS_SAM_FLOW_CTRL(idx)); - val &= ~MSCC_MS_SAM_FLOW_CTRL_SA_IN_USE; - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_SAM_FLOW_CTRL(idx), val); -} - -static u32 vsc8584_macsec_flow_context_id(struct macsec_flow *flow) -{ - if (flow->bank == MACSEC_INGR) - return flow->index + MSCC_MS_MAX_FLOWS; - - return flow->index; -} - -/* Derive the AES key to get a key for the hash autentication */ -static int vsc8584_macsec_derive_key(const u8 key[MACSEC_KEYID_LEN], - u16 key_len, u8 hkey[16]) -{ - struct crypto_skcipher *tfm = crypto_alloc_skcipher("ecb(aes)", 0, 0); - struct skcipher_request *req = NULL; - struct scatterlist src, dst; - DECLARE_CRYPTO_WAIT(wait); - u32 input[4] = {0}; - int ret; - - if (IS_ERR(tfm)) - return PTR_ERR(tfm); - - req = skcipher_request_alloc(tfm, GFP_KERNEL); - if (!req) { - ret = -ENOMEM; - goto out; - } - - skcipher_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG | - CRYPTO_TFM_REQ_MAY_SLEEP, crypto_req_done, - &wait); - ret = crypto_skcipher_setkey(tfm, key, key_len); - if (ret < 0) - goto out; - - sg_init_one(&src, input, 16); - sg_init_one(&dst, hkey, 16); - skcipher_request_set_crypt(req, &src, &dst, 16, NULL); - - ret = crypto_wait_req(crypto_skcipher_encrypt(req), &wait); - -out: - skcipher_request_free(req); - crypto_free_skcipher(tfm); - return ret; -} - -static int vsc8584_macsec_transformation(struct phy_device *phydev, - struct macsec_flow *flow) -{ - struct vsc8531_private *priv = phydev->priv; - enum macsec_bank bank = flow->bank; - int i, ret, index = flow->index; - u32 rec = 0, control = 0; - u8 hkey[16]; - sci_t sci; - - ret = vsc8584_macsec_derive_key(flow->key, priv->secy->key_len, hkey); - if (ret) - return ret; - - switch (priv->secy->key_len) { - case 16: - control |= CONTROL_CRYPTO_ALG(CTRYPTO_ALG_AES_CTR_128); - break; - case 32: - control |= CONTROL_CRYPTO_ALG(CTRYPTO_ALG_AES_CTR_256); - break; - default: - return -EINVAL; - } - - control |= (bank == MACSEC_EGR) ? - (CONTROL_TYPE_EGRESS | CONTROL_AN(priv->secy->tx_sc.encoding_sa)) : - (CONTROL_TYPE_INGRESS | CONTROL_SEQ_MASK); - - control |= CONTROL_UPDATE_SEQ | CONTROL_ENCRYPT_AUTH | CONTROL_KEY_IN_CTX | - CONTROL_IV0 | CONTROL_IV1 | CONTROL_IV_IN_SEQ | - CONTROL_DIGEST_TYPE(0x2) | CONTROL_SEQ_TYPE(0x1) | - CONTROL_AUTH_ALG(AUTH_ALG_AES_GHAS) | CONTROL_CONTEXT_ID; - - /* Set the control word */ - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_XFORM_REC(index, rec++), - control); - - /* Set the context ID. Must be unique. */ - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_XFORM_REC(index, rec++), - vsc8584_macsec_flow_context_id(flow)); - - /* Set the encryption/decryption key */ - for (i = 0; i < priv->secy->key_len / sizeof(u32); i++) - vsc8584_macsec_phy_write(phydev, bank, - MSCC_MS_XFORM_REC(index, rec++), - ((u32 *)flow->key)[i]); - - /* Set the authentication key */ - for (i = 0; i < 4; i++) - vsc8584_macsec_phy_write(phydev, bank, - MSCC_MS_XFORM_REC(index, rec++), - ((u32 *)hkey)[i]); - - /* Initial sequence number */ - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_XFORM_REC(index, rec++), - bank == MACSEC_INGR ? - flow->rx_sa->next_pn : flow->tx_sa->next_pn); - - if (bank == MACSEC_INGR) - /* Set the mask (replay window size) */ - vsc8584_macsec_phy_write(phydev, bank, - MSCC_MS_XFORM_REC(index, rec++), - priv->secy->replay_window); - - /* Set the input vectors */ - sci = bank == MACSEC_INGR ? flow->rx_sa->sc->sci : priv->secy->sci; - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_XFORM_REC(index, rec++), - lower_32_bits(sci)); - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_XFORM_REC(index, rec++), - upper_32_bits(sci)); - - while (rec < 20) - vsc8584_macsec_phy_write(phydev, bank, MSCC_MS_XFORM_REC(index, rec++), - 0); - - flow->has_transformation = true; - return 0; -} - -static struct macsec_flow *vsc8584_macsec_alloc_flow(struct vsc8531_private *priv, - enum macsec_bank bank) -{ - unsigned long *bitmap = bank == MACSEC_INGR ? - &priv->ingr_flows : &priv->egr_flows; - struct macsec_flow *flow; - int index; - - index = find_first_zero_bit(bitmap, MSCC_MS_MAX_FLOWS); - - if (index == MSCC_MS_MAX_FLOWS) - return ERR_PTR(-ENOMEM); - - flow = kzalloc(sizeof(*flow), GFP_KERNEL); - if (!flow) - return ERR_PTR(-ENOMEM); - - set_bit(index, bitmap); - flow->index = index; - flow->bank = bank; - flow->priority = 8; - flow->assoc_num = -1; - - list_add_tail(&flow->list, &priv->macsec_flows); - return flow; -} - -static void vsc8584_macsec_free_flow(struct vsc8531_private *priv, - struct macsec_flow *flow) -{ - unsigned long *bitmap = flow->bank == MACSEC_INGR ? - &priv->ingr_flows : &priv->egr_flows; - - list_del(&flow->list); - clear_bit(flow->index, bitmap); - kfree(flow); -} - -static int vsc8584_macsec_add_flow(struct phy_device *phydev, - struct macsec_flow *flow, bool update) -{ - int ret; - - flow->port = MSCC_MS_PORT_CONTROLLED; - vsc8584_macsec_flow(phydev, flow); - - if (update) - return 0; - - ret = vsc8584_macsec_transformation(phydev, flow); - if (ret) { - vsc8584_macsec_free_flow(phydev->priv, flow); - return ret; - } - - return 0; -} - -static int vsc8584_macsec_default_flows(struct phy_device *phydev) -{ - struct macsec_flow *flow; - - /* Add a rule to let the MKA traffic go through, ingress */ - flow = vsc8584_macsec_alloc_flow(phydev->priv, MACSEC_INGR); - if (IS_ERR(flow)) - return PTR_ERR(flow); - - flow->priority = 15; - flow->port = MSCC_MS_PORT_UNCONTROLLED; - flow->match.tagged = 1; - flow->match.untagged = 1; - flow->match.etype = 1; - flow->etype = ETH_P_PAE; - flow->action.bypass = 1; - - vsc8584_macsec_flow(phydev, flow); - vsc8584_macsec_flow_enable(phydev, flow); - - /* Add a rule to let the MKA traffic go through, egress */ - flow = vsc8584_macsec_alloc_flow(phydev->priv, MACSEC_EGR); - if (IS_ERR(flow)) - return PTR_ERR(flow); - - flow->priority = 15; - flow->port = MSCC_MS_PORT_COMMON; - flow->match.untagged = 1; - flow->match.etype = 1; - flow->etype = ETH_P_PAE; - flow->action.bypass = 1; - - vsc8584_macsec_flow(phydev, flow); - vsc8584_macsec_flow_enable(phydev, flow); - - return 0; -} - -static void vsc8584_macsec_del_flow(struct phy_device *phydev, - struct macsec_flow *flow) -{ - vsc8584_macsec_flow_disable(phydev, flow); - vsc8584_macsec_free_flow(phydev->priv, flow); -} - -static int __vsc8584_macsec_add_rxsa(struct macsec_context *ctx, - struct macsec_flow *flow, bool update) -{ - struct phy_device *phydev = ctx->phydev; - struct vsc8531_private *priv = phydev->priv; - - if (!flow) { - flow = vsc8584_macsec_alloc_flow(priv, MACSEC_INGR); - if (IS_ERR(flow)) - return PTR_ERR(flow); - - memcpy(flow->key, ctx->sa.key, priv->secy->key_len); - } - - flow->assoc_num = ctx->sa.assoc_num; - flow->rx_sa = ctx->sa.rx_sa; - - /* Always match tagged packets on ingress */ - flow->match.tagged = 1; - flow->match.sci = 1; - - if (priv->secy->validate_frames != MACSEC_VALIDATE_DISABLED) - flow->match.untagged = 1; - - return vsc8584_macsec_add_flow(phydev, flow, update); -} - -static int __vsc8584_macsec_add_txsa(struct macsec_context *ctx, - struct macsec_flow *flow, bool update) -{ - struct phy_device *phydev = ctx->phydev; - struct vsc8531_private *priv = phydev->priv; - - if (!flow) { - flow = vsc8584_macsec_alloc_flow(priv, MACSEC_EGR); - if (IS_ERR(flow)) - return PTR_ERR(flow); - - memcpy(flow->key, ctx->sa.key, priv->secy->key_len); - } - - flow->assoc_num = ctx->sa.assoc_num; - flow->tx_sa = ctx->sa.tx_sa; - - /* Always match untagged packets on egress */ - flow->match.untagged = 1; - - return vsc8584_macsec_add_flow(phydev, flow, update); -} - -static int vsc8584_macsec_dev_open(struct macsec_context *ctx) -{ - struct vsc8531_private *priv = ctx->phydev->priv; - struct macsec_flow *flow, *tmp; - - /* No operation to perform before the commit step */ - if (ctx->prepare) - return 0; - - list_for_each_entry_safe(flow, tmp, &priv->macsec_flows, list) - vsc8584_macsec_flow_enable(ctx->phydev, flow); - - return 0; -} - -static int vsc8584_macsec_dev_stop(struct macsec_context *ctx) -{ - struct vsc8531_private *priv = ctx->phydev->priv; - struct macsec_flow *flow, *tmp; - - /* No operation to perform before the commit step */ - if (ctx->prepare) - return 0; - - list_for_each_entry_safe(flow, tmp, &priv->macsec_flows, list) - vsc8584_macsec_flow_disable(ctx->phydev, flow); - - return 0; -} - -static int vsc8584_macsec_add_secy(struct macsec_context *ctx) -{ - struct vsc8531_private *priv = ctx->phydev->priv; - struct macsec_secy *secy = ctx->secy; - - if (ctx->prepare) { - if (priv->secy) - return -EEXIST; - - return 0; - } - - priv->secy = secy; - - vsc8584_macsec_flow_default_action(ctx->phydev, MACSEC_EGR, - secy->validate_frames != MACSEC_VALIDATE_DISABLED); - vsc8584_macsec_flow_default_action(ctx->phydev, MACSEC_INGR, - secy->validate_frames != MACSEC_VALIDATE_DISABLED); - - return vsc8584_macsec_default_flows(ctx->phydev); -} - -static int vsc8584_macsec_del_secy(struct macsec_context *ctx) -{ - struct vsc8531_private *priv = ctx->phydev->priv; - struct macsec_flow *flow, *tmp; - - /* No operation to perform before the commit step */ - if (ctx->prepare) - return 0; - - list_for_each_entry_safe(flow, tmp, &priv->macsec_flows, list) - vsc8584_macsec_del_flow(ctx->phydev, flow); - - vsc8584_macsec_flow_default_action(ctx->phydev, MACSEC_EGR, false); - vsc8584_macsec_flow_default_action(ctx->phydev, MACSEC_INGR, false); - - priv->secy = NULL; - return 0; -} - -static int vsc8584_macsec_upd_secy(struct macsec_context *ctx) -{ - /* No operation to perform before the commit step */ - if (ctx->prepare) - return 0; - - vsc8584_macsec_del_secy(ctx); - return vsc8584_macsec_add_secy(ctx); -} - -static int vsc8584_macsec_add_rxsc(struct macsec_context *ctx) -{ - /* Nothing to do */ - return 0; -} - -static int vsc8584_macsec_upd_rxsc(struct macsec_context *ctx) -{ - return -EOPNOTSUPP; -} - -static int vsc8584_macsec_del_rxsc(struct macsec_context *ctx) -{ - struct vsc8531_private *priv = ctx->phydev->priv; - struct macsec_flow *flow, *tmp; - - /* No operation to perform before the commit step */ - if (ctx->prepare) - return 0; - - list_for_each_entry_safe(flow, tmp, &priv->macsec_flows, list) { - if (flow->bank == MACSEC_INGR && flow->rx_sa && - flow->rx_sa->sc->sci == ctx->rx_sc->sci) - vsc8584_macsec_del_flow(ctx->phydev, flow); - } - - return 0; -} - -static int vsc8584_macsec_add_rxsa(struct macsec_context *ctx) -{ - struct macsec_flow *flow = NULL; - - if (ctx->prepare) - return __vsc8584_macsec_add_rxsa(ctx, flow, false); - - flow = vsc8584_macsec_find_flow(ctx, MACSEC_INGR); - if (IS_ERR(flow)) - return PTR_ERR(flow); - - vsc8584_macsec_flow_enable(ctx->phydev, flow); - return 0; -} - -static int vsc8584_macsec_upd_rxsa(struct macsec_context *ctx) -{ - struct macsec_flow *flow; - - flow = vsc8584_macsec_find_flow(ctx, MACSEC_INGR); - if (IS_ERR(flow)) - return PTR_ERR(flow); - - if (ctx->prepare) { - /* Make sure the flow is disabled before updating it */ - vsc8584_macsec_flow_disable(ctx->phydev, flow); - - return __vsc8584_macsec_add_rxsa(ctx, flow, true); - } - - vsc8584_macsec_flow_enable(ctx->phydev, flow); - return 0; -} - -static int vsc8584_macsec_del_rxsa(struct macsec_context *ctx) -{ - struct macsec_flow *flow; - - flow = vsc8584_macsec_find_flow(ctx, MACSEC_INGR); - - if (IS_ERR(flow)) - return PTR_ERR(flow); - if (ctx->prepare) - return 0; - - vsc8584_macsec_del_flow(ctx->phydev, flow); - return 0; -} - -static int vsc8584_macsec_add_txsa(struct macsec_context *ctx) -{ - struct macsec_flow *flow = NULL; - - if (ctx->prepare) - return __vsc8584_macsec_add_txsa(ctx, flow, false); - - flow = vsc8584_macsec_find_flow(ctx, MACSEC_EGR); - if (IS_ERR(flow)) - return PTR_ERR(flow); - - vsc8584_macsec_flow_enable(ctx->phydev, flow); - return 0; -} - -static int vsc8584_macsec_upd_txsa(struct macsec_context *ctx) -{ - struct macsec_flow *flow; - - flow = vsc8584_macsec_find_flow(ctx, MACSEC_EGR); - if (IS_ERR(flow)) - return PTR_ERR(flow); - - if (ctx->prepare) { - /* Make sure the flow is disabled before updating it */ - vsc8584_macsec_flow_disable(ctx->phydev, flow); - - return __vsc8584_macsec_add_txsa(ctx, flow, true); - } - - vsc8584_macsec_flow_enable(ctx->phydev, flow); - return 0; -} - -static int vsc8584_macsec_del_txsa(struct macsec_context *ctx) -{ - struct macsec_flow *flow; - - flow = vsc8584_macsec_find_flow(ctx, MACSEC_EGR); - - if (IS_ERR(flow)) - return PTR_ERR(flow); - if (ctx->prepare) - return 0; - - vsc8584_macsec_del_flow(ctx->phydev, flow); - return 0; -} - -static struct macsec_ops vsc8584_macsec_ops = { - .mdo_dev_open = vsc8584_macsec_dev_open, - .mdo_dev_stop = vsc8584_macsec_dev_stop, - .mdo_add_secy = vsc8584_macsec_add_secy, - .mdo_upd_secy = vsc8584_macsec_upd_secy, - .mdo_del_secy = vsc8584_macsec_del_secy, - .mdo_add_rxsc = vsc8584_macsec_add_rxsc, - .mdo_upd_rxsc = vsc8584_macsec_upd_rxsc, - .mdo_del_rxsc = vsc8584_macsec_del_rxsc, - .mdo_add_rxsa = vsc8584_macsec_add_rxsa, - .mdo_upd_rxsa = vsc8584_macsec_upd_rxsa, - .mdo_del_rxsa = vsc8584_macsec_del_rxsa, - .mdo_add_txsa = vsc8584_macsec_add_txsa, - .mdo_upd_txsa = vsc8584_macsec_upd_txsa, - .mdo_del_txsa = vsc8584_macsec_del_txsa, -}; -#endif /* CONFIG_MACSEC */ - /* Check if one PHY has already done the init of the parts common to all PHYs * in the Quad PHY package. */ @@ -2797,23 +1400,9 @@ static int vsc8584_config_init(struct phy_device *phydev) mutex_unlock(&phydev->mdio.bus->mdio_lock); -#if IS_ENABLED(CONFIG_MACSEC) - /* MACsec */ - switch (phydev->phy_id & phydev->drv->phy_id_mask) { - case PHY_ID_VSC856X: - case PHY_ID_VSC8575: - case PHY_ID_VSC8582: - case PHY_ID_VSC8584: - INIT_LIST_HEAD(&vsc8531->macsec_flows); - vsc8531->secy = NULL; - - phydev->macsec_ops = &vsc8584_macsec_ops; - - ret = vsc8584_macsec_init(phydev); - if (ret) - goto err; - } -#endif + ret = vsc8584_macsec_init(phydev); + if (ret) + return ret; phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD); @@ -2842,37 +1431,7 @@ err: static int vsc8584_handle_interrupt(struct phy_device *phydev) { -#if IS_ENABLED(CONFIG_MACSEC) - struct vsc8531_private *priv = phydev->priv; - struct macsec_flow *flow, *tmp; - u32 cause, rec; - - /* Check MACsec PN rollover */ - cause = vsc8584_macsec_phy_read(phydev, MACSEC_EGR, - MSCC_MS_INTR_CTRL_STATUS); - cause &= MSCC_MS_INTR_CTRL_STATUS_INTR_CLR_STATUS_M; - if (!(cause & MACSEC_INTR_CTRL_STATUS_ROLLOVER)) - goto skip_rollover; - - rec = 6 + priv->secy->key_len / sizeof(u32); - list_for_each_entry_safe(flow, tmp, &priv->macsec_flows, list) { - u32 val; - - if (flow->bank != MACSEC_EGR || !flow->has_transformation) - continue; - - val = vsc8584_macsec_phy_read(phydev, MACSEC_EGR, - MSCC_MS_XFORM_REC(flow->index, rec)); - if (val == 0xffffffff) { - vsc8584_macsec_flow_disable(phydev, flow); - macsec_pn_wrapped(priv->secy, flow->tx_sa); - break; - } - } - -skip_rollover: -#endif - + vsc8584_handle_macsec_interrupt(phydev); phy_mac_interrupt(phydev); return 0; } @@ -3320,20 +1879,8 @@ static int vsc85xx_config_intr(struct phy_device *phydev) int rc; if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { -#if IS_ENABLED(CONFIG_MACSEC) - phy_write(phydev, MSCC_EXT_PAGE_ACCESS, - MSCC_PHY_PAGE_EXTENDED_2); - phy_write(phydev, MSCC_PHY_EXTENDED_INT, - MSCC_PHY_EXTENDED_INT_MS_EGR); - phy_write(phydev, MSCC_EXT_PAGE_ACCESS, - MSCC_PHY_PAGE_STANDARD); - - vsc8584_macsec_phy_write(phydev, MACSEC_EGR, - MSCC_MS_AIC_CTRL, 0xf); - vsc8584_macsec_phy_write(phydev, MACSEC_EGR, - MSCC_MS_INTR_CTRL_STATUS, - MSCC_MS_INTR_CTRL_STATUS_INTR_ENABLE(MACSEC_INTR_CTRL_STATUS_ROLLOVER)); -#endif + vsc8584_config_macsec_intr(phydev); + rc = phy_write(phydev, MII_VSC85XX_INT_MASK, MII_VSC85XX_INT_MASK_MASK); } else { -- 2.20.1