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// 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/firmware.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mdio.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <linux/of.h>
#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_MASK 0xa020
#define MII_VSC85XX_INT_MASK_WOL 0x0040
#define MII_VSC85XX_INT_STATUS 26
#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;
};
static const struct vsc85xx_hw_stat vsc85xx_hw_stats[] = {
{
.string = "phy_receive_errors",
.reg = MSCC_PHY_ERR_RX_CNT,
.page = MSCC_PHY_PAGE_STANDARD,
.mask = ERR_CNT_MASK,
}, {
.string = "phy_false_carrier",
.reg = MSCC_PHY_ERR_FALSE_CARRIER_CNT,
.page = MSCC_PHY_PAGE_STANDARD,
.mask = ERR_CNT_MASK,
}, {
.string = "phy_cu_media_link_disconnect",
.reg = MSCC_PHY_ERR_LINK_DISCONNECT_CNT,
.page = MSCC_PHY_PAGE_STANDARD,
.mask = ERR_CNT_MASK,
}, {
.string = "phy_cu_media_crc_good_count",
.reg = MSCC_PHY_CU_MEDIA_CRC_VALID_CNT,
.page = MSCC_PHY_PAGE_EXTENDED,
.mask = VALID_CRC_CNT_CRC_MASK,
}, {
.string = "phy_cu_media_crc_error_count",
.reg = MSCC_PHY_EXT_PHY_CNTL_4,
.page = MSCC_PHY_PAGE_EXTENDED,
.mask = ERR_CNT_MASK,
},
};
static const struct vsc85xx_hw_stat vsc8584_hw_stats[] = {
{
.string = "phy_receive_errors",
.reg = MSCC_PHY_ERR_RX_CNT,
.page = MSCC_PHY_PAGE_STANDARD,
.mask = ERR_CNT_MASK,
}, {
.string = "phy_false_carrier",
.reg = MSCC_PHY_ERR_FALSE_CARRIER_CNT,
.page = MSCC_PHY_PAGE_STANDARD,
.mask = ERR_CNT_MASK,
}, {
.string = "phy_cu_media_link_disconnect",
.reg = MSCC_PHY_ERR_LINK_DISCONNECT_CNT,
.page = MSCC_PHY_PAGE_STANDARD,
.mask = ERR_CNT_MASK,
}, {
.string = "phy_cu_media_crc_good_count",
.reg = MSCC_PHY_CU_MEDIA_CRC_VALID_CNT,
.page = MSCC_PHY_PAGE_EXTENDED,
.mask = VALID_CRC_CNT_CRC_MASK,
}, {
.string = "phy_cu_media_crc_error_count",
.reg = MSCC_PHY_EXT_PHY_CNTL_4,
.page = MSCC_PHY_PAGE_EXTENDED,
.mask = ERR_CNT_MASK,
}, {
.string = "phy_serdes_tx_good_pkt_count",
.reg = MSCC_PHY_SERDES_TX_VALID_CNT,
.page = MSCC_PHY_PAGE_EXTENDED_3,
.mask = VALID_CRC_CNT_CRC_MASK,
}, {
.string = "phy_serdes_tx_bad_crc_count",
.reg = MSCC_PHY_SERDES_TX_CRC_ERR_CNT,
.page = MSCC_PHY_PAGE_EXTENDED_3,
.mask = ERR_CNT_MASK,
}, {
.string = "phy_serdes_rx_good_pkt_count",
.reg = MSCC_PHY_SERDES_RX_VALID_CNT,
.page = MSCC_PHY_PAGE_EXTENDED_3,
.mask = VALID_CRC_CNT_CRC_MASK,
}, {
.string = "phy_serdes_rx_bad_crc_count",
.reg = MSCC_PHY_SERDES_RX_CRC_ERR_CNT,
.page = MSCC_PHY_PAGE_EXTENDED_3,
.mask = ERR_CNT_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];
};
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 */
static int vsc85xx_phy_read_page(struct phy_device *phydev)
{
return __phy_read(phydev, MSCC_EXT_PAGE_ACCESS);
}
static int vsc85xx_phy_write_page(struct phy_device *phydev, int page)
{
return __phy_write(phydev, MSCC_EXT_PAGE_ACCESS, page);
}
static int vsc85xx_get_sset_count(struct phy_device *phydev)
{
struct vsc8531_private *priv = phydev->priv;
if (!priv)
return 0;
return priv->nstats;
}
static void vsc85xx_get_strings(struct phy_device *phydev, u8 *data)
{
struct vsc8531_private *priv = phydev->priv;
int i;
if (!priv)
return;
for (i = 0; i < priv->nstats; i++)
strlcpy(data + i * ETH_GSTRING_LEN, priv->hw_stats[i].string,
ETH_GSTRING_LEN);
}
static u64 vsc85xx_get_stat(struct phy_device *phydev, int i)
{
struct vsc8531_private *priv = phydev->priv;
int val;
val = phy_read_paged(phydev, priv->hw_stats[i].page,
priv->hw_stats[i].reg);
if (val < 0)
return U64_MAX;
val = val & priv->hw_stats[i].mask;
priv->stats[i] += val;
return priv->stats[i];
}
static void vsc85xx_get_stats(struct phy_device *phydev,
struct ethtool_stats *stats, u64 *data)
{
struct vsc8531_private *priv = phydev->priv;
int i;
if (!priv)
return;
for (i = 0; i < priv->nstats; i++)
data[i] = vsc85xx_get_stat(phydev, i);
}
static int vsc85xx_led_cntl_set(struct phy_device *phydev,
u8 led_num,
u8 mode)
{
int rc;
u16 reg_val;
mutex_lock(&phydev->lock);
reg_val = phy_read(phydev, MSCC_PHY_LED_MODE_SEL);
reg_val &= ~LED_MODE_SEL_MASK(led_num);
reg_val |= LED_MODE_SEL(led_num, (u16)mode);
rc = phy_write(phydev, MSCC_PHY_LED_MODE_SEL, reg_val);
mutex_unlock(&phydev->lock);
return rc;
}
static int vsc85xx_mdix_get(struct phy_device *phydev, u8 *mdix)
{
u16 reg_val;
reg_val = phy_read(phydev, MSCC_PHY_DEV_AUX_CNTL);
if (reg_val & HP_AUTO_MDIX_X_OVER_IND_MASK)
*mdix = ETH_TP_MDI_X;
else
*mdix = ETH_TP_MDI;
return 0;
}
static int vsc85xx_mdix_set(struct phy_device *phydev, u8 mdix)
{
int rc;
u16 reg_val;
reg_val = phy_read(phydev, MSCC_PHY_BYPASS_CONTROL);
if (mdix == ETH_TP_MDI || mdix == ETH_TP_MDI_X) {
reg_val |= (DISABLE_PAIR_SWAP_CORR_MASK |
DISABLE_POLARITY_CORR_MASK |
DISABLE_HP_AUTO_MDIX_MASK);
} else {
reg_val &= ~(DISABLE_PAIR_SWAP_CORR_MASK |
DISABLE_POLARITY_CORR_MASK |
DISABLE_HP_AUTO_MDIX_MASK);
}
rc = phy_write(phydev, MSCC_PHY_BYPASS_CONTROL, reg_val);
if (rc)
return rc;
reg_val = 0;
if (mdix == ETH_TP_MDI)
reg_val = FORCE_MDI_CROSSOVER_MDI;
else if (mdix == ETH_TP_MDI_X)
reg_val = FORCE_MDI_CROSSOVER_MDIX;
rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED,
MSCC_PHY_EXT_MODE_CNTL, FORCE_MDI_CROSSOVER_MASK,
reg_val);
if (rc < 0)
return rc;
return genphy_restart_aneg(phydev);
}
static int vsc85xx_downshift_get(struct phy_device *phydev, u8 *count)
{
int reg_val;
reg_val = phy_read_paged(phydev, MSCC_PHY_PAGE_EXTENDED,
MSCC_PHY_ACTIPHY_CNTL);
if (reg_val < 0)
return reg_val;
reg_val &= DOWNSHIFT_CNTL_MASK;
if (!(reg_val & DOWNSHIFT_EN))
*count = DOWNSHIFT_DEV_DISABLE;
else
*count = ((reg_val & ~DOWNSHIFT_EN) >> DOWNSHIFT_CNTL_POS) + 2;
return 0;
}
static int vsc85xx_downshift_set(struct phy_device *phydev, u8 count)
{
if (count == DOWNSHIFT_DEV_DEFAULT_COUNT) {
/* Default downshift count 3 (i.e. Bit3:2 = 0b01) */
count = ((1 << DOWNSHIFT_CNTL_POS) | DOWNSHIFT_EN);
} else if (count > DOWNSHIFT_COUNT_MAX || count == 1) {
phydev_err(phydev, "Downshift count should be 2,3,4 or 5\n");
return -ERANGE;
} else if (count) {
/* Downshift count is either 2,3,4 or 5 */
count = (((count - 2) << DOWNSHIFT_CNTL_POS) | DOWNSHIFT_EN);
}
return phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED,
MSCC_PHY_ACTIPHY_CNTL, DOWNSHIFT_CNTL_MASK,
count);
}
static int vsc85xx_wol_set(struct phy_device *phydev,
struct ethtool_wolinfo *wol)
{
int rc;
u16 reg_val;
u8 i;
u16 pwd[3] = {0, 0, 0};
struct ethtool_wolinfo *wol_conf = wol;
u8 *mac_addr = phydev->attached_dev->dev_addr;
mutex_lock(&phydev->lock);
rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2);
if (rc < 0) {
rc = phy_restore_page(phydev, rc, rc);
goto out_unlock;
}
if (wol->wolopts & WAKE_MAGIC) {
/* Store the device address for the magic packet */
for (i = 0; i < ARRAY_SIZE(pwd); i++)
pwd[i] = mac_addr[5 - (i * 2 + 1)] << 8 |
mac_addr[5 - i * 2];
__phy_write(phydev, MSCC_PHY_WOL_LOWER_MAC_ADDR, pwd[0]);
__phy_write(phydev, MSCC_PHY_WOL_MID_MAC_ADDR, pwd[1]);
__phy_write(phydev, MSCC_PHY_WOL_UPPER_MAC_ADDR, pwd[2]);
} else {
__phy_write(phydev, MSCC_PHY_WOL_LOWER_MAC_ADDR, 0);
__phy_write(phydev, MSCC_PHY_WOL_MID_MAC_ADDR, 0);
__phy_write(phydev, MSCC_PHY_WOL_UPPER_MAC_ADDR, 0);
}
if (wol_conf->wolopts & WAKE_MAGICSECURE) {
for (i = 0; i < ARRAY_SIZE(pwd); i++)
pwd[i] = wol_conf->sopass[5 - (i * 2 + 1)] << 8 |
wol_conf->sopass[5 - i * 2];
__phy_write(phydev, MSCC_PHY_WOL_LOWER_PASSWD, pwd[0]);
__phy_write(phydev, MSCC_PHY_WOL_MID_PASSWD, pwd[1]);
__phy_write(phydev, MSCC_PHY_WOL_UPPER_PASSWD, pwd[2]);
} else {
__phy_write(phydev, MSCC_PHY_WOL_LOWER_PASSWD, 0);
__phy_write(phydev, MSCC_PHY_WOL_MID_PASSWD, 0);
__phy_write(phydev, MSCC_PHY_WOL_UPPER_PASSWD, 0);
}
reg_val = __phy_read(phydev, MSCC_PHY_WOL_MAC_CONTROL);
if (wol_conf->wolopts & WAKE_MAGICSECURE)
reg_val |= SECURE_ON_ENABLE;
else
reg_val &= ~SECURE_ON_ENABLE;
__phy_write(phydev, MSCC_PHY_WOL_MAC_CONTROL, reg_val);
rc = phy_restore_page(phydev, rc, rc > 0 ? 0 : rc);
if (rc < 0)
goto out_unlock;
if (wol->wolopts & WAKE_MAGIC) {
/* Enable the WOL interrupt */
reg_val = phy_read(phydev, MII_VSC85XX_INT_MASK);
reg_val |= MII_VSC85XX_INT_MASK_WOL;
rc = phy_write(phydev, MII_VSC85XX_INT_MASK, reg_val);
if (rc)
goto out_unlock;
} else {
/* Disable the WOL interrupt */
reg_val = phy_read(phydev, MII_VSC85XX_INT_MASK);
reg_val &= (~MII_VSC85XX_INT_MASK_WOL);
rc = phy_write(phydev, MII_VSC85XX_INT_MASK, reg_val);
if (rc)
goto out_unlock;
}
/* Clear WOL iterrupt status */
reg_val = phy_read(phydev, MII_VSC85XX_INT_STATUS);
out_unlock:
mutex_unlock(&phydev->lock);
return rc;
}
static void vsc85xx_wol_get(struct phy_device *phydev,
struct ethtool_wolinfo *wol)
{
int rc;
u16 reg_val;
u8 i;
u16 pwd[3] = {0, 0, 0};
struct ethtool_wolinfo *wol_conf = wol;
mutex_lock(&phydev->lock);
rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2);
if (rc < 0)
goto out_unlock;
reg_val = __phy_read(phydev, MSCC_PHY_WOL_MAC_CONTROL);
if (reg_val & SECURE_ON_ENABLE)
wol_conf->wolopts |= WAKE_MAGICSECURE;
if (wol_conf->wolopts & WAKE_MAGICSECURE) {
pwd[0] = __phy_read(phydev, MSCC_PHY_WOL_LOWER_PASSWD);
pwd[1] = __phy_read(phydev, MSCC_PHY_WOL_MID_PASSWD);
pwd[2] = __phy_read(phydev, MSCC_PHY_WOL_UPPER_PASSWD);
for (i = 0; i < ARRAY_SIZE(pwd); i++) {
wol_conf->sopass[5 - i * 2] = pwd[i] & 0x00ff;
wol_conf->sopass[5 - (i * 2 + 1)] = (pwd[i] & 0xff00)
>> 8;
}
}
out_unlock:
phy_restore_page(phydev, rc, rc > 0 ? 0 : rc);
mutex_unlock(&phydev->lock);
}
#ifdef CONFIG_OF_MDIO
static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev)
{
u32 vdd, sd;
int i, j;
struct device *dev = &phydev->mdio.dev;
struct device_node *of_node = dev->of_node;
u8 sd_array_size = ARRAY_SIZE(edge_table[0].slowdown);
if (!of_node)
return -ENODEV;
if (of_property_read_u32(of_node, "vsc8531,vddmac", &vdd))
vdd = MSCC_VDDMAC_3300;
if (of_property_read_u32(of_node, "vsc8531,edge-slowdown", &sd))
sd = 0;
for (i = 0; i < ARRAY_SIZE(edge_table); i++)
if (edge_table[i].vddmac == vdd)
for (j = 0; j < sd_array_size; j++)
if (edge_table[i].slowdown[j] == sd)
return (sd_array_size - j - 1);
return -EINVAL;
}
static int vsc85xx_dt_led_mode_get(struct phy_device *phydev,
char *led,
u32 default_mode)
{
struct vsc8531_private *priv = phydev->priv;
struct device *dev = &phydev->mdio.dev;
struct device_node *of_node = dev->of_node;
u32 led_mode;
int err;
if (!of_node)
return -ENODEV;
led_mode = default_mode;
err = of_property_read_u32(of_node, led, &led_mode);
if (!err && !(BIT(led_mode) & priv->supp_led_modes)) {
phydev_err(phydev, "DT %s invalid\n", led);
return -EINVAL;
}
return led_mode;
}
#else
static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev)
{
return 0;
}
static int vsc85xx_dt_led_mode_get(struct phy_device *phydev,
char *led,
u8 default_mode)
{
return default_mode;
}
#endif /* CONFIG_OF_MDIO */
static int vsc85xx_dt_led_modes_get(struct phy_device *phydev,
u32 *default_mode)
{
struct vsc8531_private *priv = phydev->priv;
char led_dt_prop[28];
int i, ret;
for (i = 0; i < priv->nleds; i++) {
ret = sprintf(led_dt_prop, "vsc8531,led-%d-mode", i);
if (ret < 0)
return ret;
ret = vsc85xx_dt_led_mode_get(phydev, led_dt_prop,
default_mode[i]);
if (ret < 0)
return ret;
priv->leds_mode[i] = ret;
}
return 0;
}
static int vsc85xx_edge_rate_cntl_set(struct phy_device *phydev, u8 edge_rate)
{
int rc;
mutex_lock(&phydev->lock);
rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_2,
MSCC_PHY_WOL_MAC_CONTROL, EDGE_RATE_CNTL_MASK,
edge_rate << EDGE_RATE_CNTL_POS);
mutex_unlock(&phydev->lock);
return rc;
}
static int vsc85xx_mac_if_set(struct phy_device *phydev,
phy_interface_t interface)
{
int rc;
u16 reg_val;
mutex_lock(&phydev->lock);
reg_val = phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_1);
reg_val &= ~(MAC_IF_SELECTION_MASK);
switch (interface) {
case PHY_INTERFACE_MODE_RGMII:
reg_val |= (MAC_IF_SELECTION_RGMII << MAC_IF_SELECTION_POS);
break;
case PHY_INTERFACE_MODE_RMII:
reg_val |= (MAC_IF_SELECTION_RMII << MAC_IF_SELECTION_POS);
break;
case PHY_INTERFACE_MODE_MII:
case PHY_INTERFACE_MODE_GMII:
reg_val |= (MAC_IF_SELECTION_GMII << MAC_IF_SELECTION_POS);
break;
default:
rc = -EINVAL;
goto out_unlock;
}
rc = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, reg_val);
if (rc)
goto out_unlock;
rc = genphy_soft_reset(phydev);
out_unlock:
mutex_unlock(&phydev->lock);
return rc;
}
static int vsc85xx_default_config(struct phy_device *phydev)
{
int rc;
u16 reg_val;
phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
mutex_lock(&phydev->lock);
reg_val = RGMII_RX_CLK_DELAY_1_1_NS << RGMII_RX_CLK_DELAY_POS;
rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_2,
MSCC_PHY_RGMII_CNTL, RGMII_RX_CLK_DELAY_MASK,
reg_val);
mutex_unlock(&phydev->lock);
return rc;
}
static int vsc85xx_get_tunable(struct phy_device *phydev,
struct ethtool_tunable *tuna, void *data)
{
switch (tuna->id) {
case ETHTOOL_PHY_DOWNSHIFT:
return vsc85xx_downshift_get(phydev, (u8 *)data);
default:
return -EINVAL;
}
}
static int vsc85xx_set_tunable(struct phy_device *phydev,
struct ethtool_tunable *tuna,
const void *data)
{
switch (tuna->id) {
case ETHTOOL_PHY_DOWNSHIFT:
return vsc85xx_downshift_set(phydev, *(u8 *)data);
default:
return -EINVAL;
}
}
/* mdiobus lock should be locked when using this function */
static void vsc85xx_tr_write(struct phy_device *phydev, u16 addr, u32 val)
{
__phy_write(phydev, MSCC_PHY_TR_MSB, val >> 16);
__phy_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0));
__phy_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr));
}
static int vsc8531_pre_init_seq_set(struct phy_device *phydev)
{
int rc;
static const struct reg_val init_seq[] = {
{0x0f90, 0x00688980},
{0x0696, 0x00000003},
{0x07fa, 0x0050100f},
{0x1686, 0x00000004},
};
unsigned int i;
int oldpage;
rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_STANDARD,
MSCC_PHY_EXT_CNTL_STATUS, SMI_BROADCAST_WR_EN,
SMI_BROADCAST_WR_EN);
if (rc < 0)
return rc;
rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST,
MSCC_PHY_TEST_PAGE_24, 0, 0x0400);
if (rc < 0)
return rc;
rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST,
MSCC_PHY_TEST_PAGE_5, 0x0a00, 0x0e00);
if (rc < 0)
return rc;
rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST,
MSCC_PHY_TEST_PAGE_8, 0x8000, 0x8000);
if (rc < 0)
return rc;
mutex_lock(&phydev->lock);
oldpage = phy_select_page(phydev, MSCC_PHY_PAGE_TR);
if (oldpage < 0)
goto out_unlock;
for (i = 0; i < ARRAY_SIZE(init_seq); i++)
vsc85xx_tr_write(phydev, init_seq[i].reg, init_seq[i].val);
out_unlock:
oldpage = phy_restore_page(phydev, oldpage, oldpage);
mutex_unlock(&phydev->lock);
return oldpage;
}
static int vsc85xx_eee_init_seq_set(struct phy_device *phydev)
{
static const struct reg_val init_eee[] = {
{0x0f82, 0x0012b00a},
{0x1686, 0x00000004},
{0x168c, 0x00d2c46f},
{0x17a2, 0x00000620},
{0x16a0, 0x00eeffdd},
{0x16a6, 0x00071448},
{0x16a4, 0x0013132f},
{0x16a8, 0x00000000},
{0x0ffc, 0x00c0a028},
{0x0fe8, 0x0091b06c},
{0x0fea, 0x00041600},
{0x0f80, 0x00000af4},
{0x0fec, 0x00901809},
{0x0fee, 0x0000a6a1},
{0x0ffe, 0x00b01007},
{0x16b0, 0x00eeff00},
{0x16b2, 0x00007000},
{0x16b4, 0x00000814},
};
unsigned int i;
int oldpage;
mutex_lock(&phydev->lock);
oldpage = phy_select_page(phydev, MSCC_PHY_PAGE_TR);
if (oldpage < 0)
goto out_unlock;
for (i = 0; i < ARRAY_SIZE(init_eee); i++)
vsc85xx_tr_write(phydev, init_eee[i].reg, init_eee[i].val);
out_unlock:
oldpage = phy_restore_page(phydev, oldpage, oldpage);
mutex_unlock(&phydev->lock);
return oldpage;
}
/* phydev->bus->mdio_lock should be locked when using this function */
static int phy_base_write(struct phy_device *phydev, u32 regnum, u16 val)
{
struct vsc8531_private *priv = phydev->priv;
if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) {
dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n");
dump_stack();
}
return __mdiobus_write(phydev->mdio.bus, priv->base_addr, regnum, val);
}
/* phydev->bus->mdio_lock should be locked when using this function */
static int phy_base_read(struct phy_device *phydev, u32 regnum)
{
struct vsc8531_private *priv = phydev->priv;
if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) {
dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n");
dump_stack();
}
return __mdiobus_read(phydev->mdio.bus, priv->base_addr, regnum);
}
/* bus->mdio_lock should be locked when using this function */
static void vsc8584_csr_write(struct phy_device *phydev, u16 addr, u32 val)
{
phy_base_write(phydev, MSCC_PHY_TR_MSB, val >> 16);
phy_base_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0));
phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr));
}
/* bus->mdio_lock should be locked when using this function */
static int vsc8584_cmd(struct phy_device *phydev, u16 val)
{
unsigned long deadline;
u16 reg_val;
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
MSCC_PHY_PAGE_EXTENDED_GPIO);
phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NCOMPLETED | val);
deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
do {
reg_val = phy_base_read(phydev, MSCC_PHY_PROC_CMD);
} while (time_before(jiffies, deadline) &&
(reg_val & PROC_CMD_NCOMPLETED) &&
!(reg_val & PROC_CMD_FAILED));
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
if (reg_val & PROC_CMD_FAILED)
return -EIO;
if (reg_val & PROC_CMD_NCOMPLETED)
return -ETIMEDOUT;
return 0;
}
/* bus->mdio_lock should be locked when using this function */
static int vsc8584_micro_deassert_reset(struct phy_device *phydev,
bool patch_en)
{
u32 enable, release;
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
MSCC_PHY_PAGE_EXTENDED_GPIO);
enable = RUN_FROM_INT_ROM | MICRO_CLK_EN | DW8051_CLK_EN;
release = MICRO_NSOFT_RESET | RUN_FROM_INT_ROM | DW8051_CLK_EN |
MICRO_CLK_EN;
if (patch_en) {
enable |= MICRO_PATCH_EN;
release |= MICRO_PATCH_EN;
/* Clear all patches */
phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM);
}
/* Enable 8051 Micro clock; CLEAR/SET patch present; disable PRAM clock
* override and addr. auto-incr; operate at 125 MHz
*/
phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, enable);
/* Release 8051 Micro SW reset */
phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, release);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
return 0;
}
/* bus->mdio_lock should be locked when using this function */
static int vsc8584_micro_assert_reset(struct phy_device *phydev)
{
int ret;
u16 reg;
ret = vsc8584_cmd(phydev, PROC_CMD_NOP);
if (ret)
return ret;
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
MSCC_PHY_PAGE_EXTENDED_GPIO);
reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
reg &= ~EN_PATCH_RAM_TRAP_ADDR(4);
phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(4), 0x005b);
phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(4), 0x005b);
reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
reg |= EN_PATCH_RAM_TRAP_ADDR(4);
phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NOP);
reg = phy_base_read(phydev, MSCC_DW8051_CNTL_STATUS);
reg &= ~MICRO_NSOFT_RESET;
phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, reg);
phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_MCB_ACCESS_MAC_CONF |
PROC_CMD_SGMII_PORT(0) | PROC_CMD_NO_MAC_CONF |
PROC_CMD_READ);
reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
reg &= ~EN_PATCH_RAM_TRAP_ADDR(4);
phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
return 0;
}
/* bus->mdio_lock should be locked when using this function */
static int vsc8584_get_fw_crc(struct phy_device *phydev, u16 start, u16 size,
u16 *crc)
{
int ret;
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);
phy_base_write(phydev, MSCC_PHY_VERIPHY_CNTL_2, start);
phy_base_write(phydev, MSCC_PHY_VERIPHY_CNTL_3, size);
/* Start Micro command */
ret = vsc8584_cmd(phydev, PROC_CMD_CRC16);
if (ret)
goto out;
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);
*crc = phy_base_read(phydev, MSCC_PHY_VERIPHY_CNTL_2);
out:
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
return ret;
}
/* bus->mdio_lock should be locked when using this function */
static int vsc8584_patch_fw(struct phy_device *phydev,
const struct firmware *fw)
{
int i, ret;
ret = vsc8584_micro_assert_reset(phydev);
if (ret) {
dev_err(&phydev->mdio.dev,
"%s: failed to assert reset of micro\n", __func__);
return ret;
}
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
MSCC_PHY_PAGE_EXTENDED_GPIO);
/* Hold 8051 Micro in SW Reset, Enable auto incr address and patch clock
* Disable the 8051 Micro clock
*/
phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, RUN_FROM_INT_ROM |
AUTOINC_ADDR | PATCH_RAM_CLK | MICRO_CLK_EN |
MICRO_CLK_DIVIDE(2));
phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_PRAM | INT_MEM_WRITE_EN |
INT_MEM_DATA(2));
phy_base_write(phydev, MSCC_INT_MEM_ADDR, 0x0000);
for (i = 0; i < fw->size; i++)
phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_PRAM |
INT_MEM_WRITE_EN | fw->data[i]);
/* Clear internal memory access */
phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
return 0;
}
/* bus->mdio_lock should be locked when using this function */
static bool vsc8574_is_serdes_init(struct phy_device *phydev)
{
u16 reg;
bool ret;
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
MSCC_PHY_PAGE_EXTENDED_GPIO);
reg = phy_base_read(phydev, MSCC_TRAP_ROM_ADDR(1));
if (reg != 0x3eb7) {
ret = false;
goto out;
}
reg = phy_base_read(phydev, MSCC_PATCH_RAM_ADDR(1));
if (reg != 0x4012) {
ret = false;
goto out;
}
reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
if (reg != EN_PATCH_RAM_TRAP_ADDR(1)) {
ret = false;
goto out;
}
reg = phy_base_read(phydev, MSCC_DW8051_CNTL_STATUS);
if ((MICRO_NSOFT_RESET | RUN_FROM_INT_ROM | DW8051_CLK_EN |
MICRO_CLK_EN) != (reg & MSCC_DW8051_VLD_MASK)) {
ret = false;
goto out;
}
ret = true;
out:
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
return ret;
}
/* bus->mdio_lock should be locked when using this function */
static int vsc8574_config_pre_init(struct phy_device *phydev)
{
static const struct reg_val pre_init1[] = {
{0x0fae, 0x000401bd},
{0x0fac, 0x000f000f},
{0x17a0, 0x00a0f147},
{0x0fe4, 0x00052f54},
{0x1792, 0x0027303d},
{0x07fe, 0x00000704},
{0x0fe0, 0x00060150},
{0x0f82, 0x0012b00a},
{0x0f80, 0x00000d74},
{0x02e0, 0x00000012},
{0x03a2, 0x00050208},
{0x03b2, 0x00009186},
{0x0fb0, 0x000e3700},
{0x1688, 0x00049f81},
{0x0fd2, 0x0000ffff},
{0x168a, 0x00039fa2},
{0x1690, 0x0020640b},
{0x0258, 0x00002220},
{0x025a, 0x00002a20},
{0x025c, 0x00003060},
{0x025e, 0x00003fa0},
{0x03a6, 0x0000e0f0},
{0x0f92, 0x00001489},
{0x16a2, 0x00007000},
{0x16a6, 0x00071448},
{0x16a0, 0x00eeffdd},
{0x0fe8, 0x0091b06c},
{0x0fea, 0x00041600},
{0x16b0, 0x00eeff00},
{0x16b2, 0x00007000},
{0x16b4, 0x00000814},
{0x0f90, 0x00688980},
{0x03a4, 0x0000d8f0},
{0x0fc0, 0x00000400},
{0x07fa, 0x0050100f},
{0x0796, 0x00000003},
{0x07f8, 0x00c3ff98},
{0x0fa4, 0x0018292a},
{0x168c, 0x00d2c46f},
{0x17a2, 0x00000620},
{0x16a4, 0x0013132f},
{0x16a8, 0x00000000},
{0x0ffc, 0x00c0a028},
{0x0fec, 0x00901c09},
{0x0fee, 0x0004a6a1},
{0x0ffe, 0x00b01807},
};
static const struct reg_val pre_init2[] = {
{0x0486, 0x0008a518},
{0x0488, 0x006dc696},
{0x048a, 0x00000912},
{0x048e, 0x00000db6},
{0x049c, 0x00596596},
{0x049e, 0x00000514},
{0x04a2, 0x00410280},
{0x04a4, 0x00000000},
{0x04a6, 0x00000000},
{0x04a8, 0x00000000},
{0x04aa, 0x00000000},
{0x04ae, 0x007df7dd},
{0x04b0, 0x006d95d4},
{0x04b2, 0x00492410},
};
struct device *dev = &phydev->mdio.dev;
const struct firmware *fw;
unsigned int i;
u16 crc, reg;
bool serdes_init;
int ret;
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
/* all writes below are broadcasted to all PHYs in the same package */
reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
reg |= SMI_BROADCAST_WR_EN;
phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
phy_base_write(phydev, MII_VSC85XX_INT_MASK, 0);
/* The below register writes are tweaking analog and electrical
* configuration that were determined through characterization by PHY
* engineers. These don't mean anything more than "these are the best
* values".
*/
phy_base_write(phydev, MSCC_PHY_EXT_PHY_CNTL_2, 0x0040);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
phy_base_write(phydev, MSCC_PHY_TEST_PAGE_20, 0x4320);
phy_base_write(phydev, MSCC_PHY_TEST_PAGE_24, 0x0c00);
phy_base_write(phydev, MSCC_PHY_TEST_PAGE_9, 0x18ca);
phy_base_write(phydev, MSCC_PHY_TEST_PAGE_5, 0x1b20);
reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
reg |= 0x8000;
phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
for (i = 0; i < ARRAY_SIZE(pre_init1); i++)
vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_2);
phy_base_write(phydev, MSCC_PHY_CU_PMD_TX_CNTL, 0x028e);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
for (i = 0; i < ARRAY_SIZE(pre_init2); i++)
vsc8584_csr_write(phydev, pre_init2[i].reg, pre_init2[i].val);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
reg &= ~0x8000;
phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
/* end of write broadcasting */
reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
reg &= ~SMI_BROADCAST_WR_EN;
phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
ret = request_firmware(&fw, MSCC_VSC8574_REVB_INT8051_FW, dev);
if (ret) {
dev_err(dev, "failed to load firmware %s, ret: %d\n",
MSCC_VSC8574_REVB_INT8051_FW, ret);
return ret;
}
/* Add one byte to size for the one added by the patch_fw function */
ret = vsc8584_get_fw_crc(phydev,
MSCC_VSC8574_REVB_INT8051_FW_START_ADDR,
fw->size + 1, &crc);
if (ret)
goto out;
if (crc == MSCC_VSC8574_REVB_INT8051_FW_CRC) {
serdes_init = vsc8574_is_serdes_init(phydev);
if (!serdes_init) {
ret = vsc8584_micro_assert_reset(phydev);
if (ret) {
dev_err(dev,
"%s: failed to assert reset of micro\n",
__func__);
goto out;
}
}
} else {
dev_dbg(dev, "FW CRC is not the expected one, patching FW\n");
serdes_init = false;
if (vsc8584_patch_fw(phydev, fw))
dev_warn(dev,
"failed to patch FW, expect non-optimal device\n");
}
if (!serdes_init) {
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
MSCC_PHY_PAGE_EXTENDED_GPIO);
phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), 0x3eb7);
phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), 0x4012);
phy_base_write(phydev, MSCC_INT_MEM_CNTL,
EN_PATCH_RAM_TRAP_ADDR(1));
vsc8584_micro_deassert_reset(phydev, false);
/* Add one byte to size for the one added by the patch_fw
* function
*/
ret = vsc8584_get_fw_crc(phydev,
MSCC_VSC8574_REVB_INT8051_FW_START_ADDR,
fw->size + 1, &crc);
if (ret)
goto out;
if (crc != MSCC_VSC8574_REVB_INT8051_FW_CRC)
dev_warn(dev,
"FW CRC after patching is not the expected one, expect non-optimal device\n");
}
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
MSCC_PHY_PAGE_EXTENDED_GPIO);
ret = vsc8584_cmd(phydev, PROC_CMD_1588_DEFAULT_INIT |
PROC_CMD_PHY_INIT);
out:
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
release_firmware(fw);
return ret;
}
/* bus->mdio_lock should be locked when using this function */
static int vsc8584_config_pre_init(struct phy_device *phydev)
{
static const struct reg_val pre_init1[] = {
{0x07fa, 0x0050100f},
{0x1688, 0x00049f81},
{0x0f90, 0x00688980},
{0x03a4, 0x0000d8f0},
{0x0fc0, 0x00000400},
{0x0f82, 0x0012b002},
{0x1686, 0x00000004},
{0x168c, 0x00d2c46f},
{0x17a2, 0x00000620},
{0x16a0, 0x00eeffdd},
{0x16a6, 0x00071448},
{0x16a4, 0x0013132f},
{0x16a8, 0x00000000},
{0x0ffc, 0x00c0a028},
{0x0fe8, 0x0091b06c},
{0x0fea, 0x00041600},
{0x0f80, 0x00fffaff},
{0x0fec, 0x00901809},
{0x0ffe, 0x00b01007},
{0x16b0, 0x00eeff00},
{0x16b2, 0x00007000},
{0x16b4, 0x00000814},
};
static const struct reg_val pre_init2[] = {
{0x0486, 0x0008a518},
{0x0488, 0x006dc696},
{0x048a, 0x00000912},
};
const struct firmware *fw;
struct device *dev = &phydev->mdio.dev;
unsigned int i;
u16 crc, reg;
int ret;
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
/* all writes below are broadcasted to all PHYs in the same package */
reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
reg |= SMI_BROADCAST_WR_EN;
phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
phy_base_write(phydev, MII_VSC85XX_INT_MASK, 0);
reg = phy_base_read(phydev, MSCC_PHY_BYPASS_CONTROL);
reg |= PARALLEL_DET_IGNORE_ADVERTISED;
phy_base_write(phydev, MSCC_PHY_BYPASS_CONTROL, reg);
/* The below register writes are tweaking analog and electrical
* configuration that were determined through characterization by PHY
* engineers. These don't mean anything more than "these are the best
* values".
*/
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_3);
phy_base_write(phydev, MSCC_PHY_SERDES_TX_CRC_ERR_CNT, 0x2000);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
phy_base_write(phydev, MSCC_PHY_TEST_PAGE_5, 0x1f20);
reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
reg |= 0x8000;
phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(0x2fa4));
reg = phy_base_read(phydev, MSCC_PHY_TR_MSB);
reg &= ~0x007f;
reg |= 0x0019;
phy_base_write(phydev, MSCC_PHY_TR_MSB, reg);
phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(0x0fa4));
for (i = 0; i < ARRAY_SIZE(pre_init1); i++)
vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_2);
phy_base_write(phydev, MSCC_PHY_CU_PMD_TX_CNTL, 0x028e);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);
for (i = 0; i < ARRAY_SIZE(pre_init2); i++)
vsc8584_csr_write(phydev, pre_init2[i].reg, pre_init2[i].val);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);
reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
reg &= ~0x8000;
phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
/* end of write broadcasting */
reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
reg &= ~SMI_BROADCAST_WR_EN;
phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);
ret = request_firmware(&fw, MSCC_VSC8584_REVB_INT8051_FW, dev);
if (ret) {
dev_err(dev, "failed to load firmware %s, ret: %d\n",
MSCC_VSC8584_REVB_INT8051_FW, ret);
return ret;
}
/* Add one byte to size for the one added by the patch_fw function */
ret = vsc8584_get_fw_crc(phydev,
MSCC_VSC8584_REVB_INT8051_FW_START_ADDR,
fw->size + 1, &crc);
if (ret)
goto out;
if (crc != MSCC_VSC8584_REVB_INT8051_FW_CRC) {
dev_dbg(dev, "FW CRC is not the expected one, patching FW\n");
if (vsc8584_patch_fw(phydev, fw))
dev_warn(dev,
"failed to patch FW, expect non-optimal device\n");
}
vsc8584_micro_deassert_reset(phydev, false);
/* Add one byte to size for the one added by the patch_fw function */
ret = vsc8584_get_fw_crc(phydev,
MSCC_VSC8584_REVB_INT8051_FW_START_ADDR,
fw->size + 1, &crc);
if (ret)
goto out;
if (crc != MSCC_VSC8584_REVB_INT8051_FW_CRC)
dev_warn(dev,
"FW CRC after patching is not the expected one, expect non-optimal device\n");
ret = vsc8584_micro_assert_reset(phydev);
if (ret)
goto out;
vsc8584_micro_deassert_reset(phydev, true);
out:
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
release_firmware(fw);
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.
*/
static bool vsc8584_is_pkg_init(struct phy_device *phydev, bool reversed)
{
struct mdio_device **map = phydev->mdio.bus->mdio_map;
struct vsc8531_private *vsc8531;
struct phy_device *phy;
int i, addr;
/* VSC8584 is a Quad PHY */
for (i = 0; i < 4; i++) {
vsc8531 = phydev->priv;
if (reversed)
addr = vsc8531->base_addr - i;
else
addr = vsc8531->base_addr + i;
if (!map[addr])
continue;
phy = container_of(map[addr], struct phy_device, mdio);
if ((phy->phy_id & phydev->drv->phy_id_mask) !=
(phydev->drv->phy_id & phydev->drv->phy_id_mask))
continue;
vsc8531 = phy->priv;
if (vsc8531 && vsc8531->pkg_init)
return true;
}
return false;
}
static int vsc8584_config_init(struct phy_device *phydev)
{
struct vsc8531_private *vsc8531 = phydev->priv;
u16 addr, val;
int ret, i;
phydev->mdix_ctrl = ETH_TP_MDI_AUTO;
mutex_lock(&phydev->mdio.bus->mdio_lock);
__mdiobus_write(phydev->mdio.bus, phydev->mdio.addr,
MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);
addr = __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr,
MSCC_PHY_EXT_PHY_CNTL_4);
addr >>= PHY_CNTL_4_ADDR_POS;
val = __mdiobus_read(phydev->mdio.bus, phydev->mdio.addr,
MSCC_PHY_ACTIPHY_CNTL);
if (val & PHY_ADDR_REVERSED)
vsc8531->base_addr = phydev->mdio.addr + addr;
else
vsc8531->base_addr = phydev->mdio.addr - addr;
/* Some parts of the init sequence are identical for every PHY in the
* package. Some parts are modifying the GPIO register bank which is a
* set of registers that are affecting all PHYs, a few resetting the
* microprocessor common to all PHYs. The CRC check responsible of the
* checking the firmware within the 8051 microprocessor can only be
* accessed via the PHY whose internal address in the package is 0.
* All PHYs' interrupts mask register has to be zeroed before enabling
* any PHY's interrupt in this register.
* For all these reasons, we need to do the init sequence once and only
* once whatever is the first PHY in the package that is initialized and
* do the correct init sequence for all PHYs that are package-critical
* in this pre-init function.
*/
if (!vsc8584_is_pkg_init(phydev, val & PHY_ADDR_REVERSED ? 1 : 0)) {
/* The following switch statement assumes that the lowest
* nibble of the phy_id_mask is always 0. This works because
* the lowest nibble of the PHY_ID's below are also 0.
*/
WARN_ON(phydev->drv->phy_id_mask & 0xf);
switch (phydev->phy_id & phydev->drv->phy_id_mask) {
case PHY_ID_VSC8504:
case PHY_ID_VSC8552:
case PHY_ID_VSC8572:
case PHY_ID_VSC8574:
ret = vsc8574_config_pre_init(phydev);
break;
case PHY_ID_VSC856X:
case PHY_ID_VSC8575:
case PHY_ID_VSC8582:
case PHY_ID_VSC8584:
ret = vsc8584_config_pre_init(phydev);
break;
default:
ret = -EINVAL;
break;
}
if (ret)
goto err;
}
vsc8531->pkg_init = true;
phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
MSCC_PHY_PAGE_EXTENDED_GPIO);
val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK);
val &= ~MAC_CFG_MASK;
if (phydev->interface == PHY_INTERFACE_MODE_QSGMII)
val |= MAC_CFG_QSGMII;
else
val |= MAC_CFG_SGMII;
ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val);
if (ret)
goto err;
val = PROC_CMD_MCB_ACCESS_MAC_CONF | PROC_CMD_RST_CONF_PORT |
PROC_CMD_READ_MOD_WRITE_PORT;
if (phydev->interface == PHY_INTERFACE_MODE_QSGMII)
val |= PROC_CMD_QSGMII_MAC;
else
val |= PROC_CMD_SGMII_MAC