* [PATCH net-next 2/3] net: phy: mscc: split the driver into separate files
2020-03-10 9:07 [PATCH net-next 0/3] net: phy: split the mscc driver Antoine Tenart
2020-03-10 9:07 ` [PATCH net-next 1/3] net: phy: move the mscc driver to its own directory Antoine Tenart
@ 2020-03-10 9:07 ` Antoine Tenart
2020-03-10 13:24 ` Andrew Lunn
2020-03-10 20:12 ` kbuild test robot
2020-03-10 9:07 ` [PATCH net-next 3/3] net: phy: mscc: fix header defines and descriptions Antoine Tenart
2 siblings, 2 replies; 9+ messages in thread
From: Antoine Tenart @ 2020-03-10 9:07 UTC (permalink / raw)
To: davem, andrew, f.fainelli, hkallweit1
Cc: Antoine Tenart, netdev, linux-kernel
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 <antoine.tenart@bootlin.com>
---
drivers/net/phy/mscc/Makefile | 7 +-
drivers/net/phy/mscc/mscc.h | 451 ++++++
drivers/net/phy/mscc/mscc_macsec.c | 1051 +++++++++++++
drivers/net/phy/mscc/{mscc.c => mscc_main.c} | 1469 +-----------------
4 files changed, 1516 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..be66418b9b64
--- /dev/null
+++ b/drivers/net/phy/mscc/mscc.h
@@ -0,0 +1,451 @@
+/* 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 <net/macsec.h>
+#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_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;
+};
+
+#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];
+};
+#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
+inline int vsc8584_macsec_init(struct phy_device *phydev)
+{
+ return 0;
+}
+inline void vsc8584_handle_macsec_interrupt(struct phy_device *phydev)
+{
+}
+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 <linux/phy.h>
+#include <dt-bindings/net/mscc-phy-vsc8531.h>
+
+#include <crypto/skcipher.h>
+
+#include <net/macsec.h>
+
+#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.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..662a03e393a4 100644
--- a/drivers/net/phy/mscc/mscc.c
+++ b/drivers/net/phy/mscc/mscc_main.c
@@ -18,361 +18,7 @@
#include <linux/netdevice.h>
#include <dt-bindings/net/mscc-phy-vsc8531.h>
-#include <linux/scatterlist.h>
-#include <crypto/skcipher.h>
-
-#if IS_ENABLED(CONFIG_MACSEC)
-#include <net/macsec.h>
-#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 @@ static int vsc8584_config_pre_init(struct phy_device *phydev)
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)
+ goto err;
phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
@@ -2842,37 +1431,7 @@ static int vsc8584_config_init(struct phy_device *phydev)
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 {
--
2.24.1
^ permalink raw reply related [flat|nested] 9+ messages in thread