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Commit fa164e40 authored by Antoine Tenart's avatar Antoine Tenart Committed by David S. Miller
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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: default avatarAntoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent da80aa52
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drivers/net/phy/mscc/Makefile
View file @ fa164e40
......@@ -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
drivers/net/phy/mscc/mscc.h 0 → 100644
View file @ fa164e40
/* 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_ */
drivers/net/phy/mscc/mscc_macsec.c 0 → 100644
View file @ fa164e40
// 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));
}
drivers/net/phy/mscc/mscc_macsec.h
View file @ fa164e40
......@@ -8,6 +8,8 @@
#ifndef _MSCC_OCELOT_MACSEC_H_
#define _MSCC_OCELOT_MACSEC_H_
#include <net/macsec.h>
#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
......
drivers/net/phy/mscc/mscc.c → drivers/net/phy/mscc/mscc_main.c
View file @ fa164e40
......@@ -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)
return ret;
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 {
......
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