/*-
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright (C) 2008 MARVELL INTERNATIONAL LTD.
* All rights reserved.
*
* Developed by Semihalf.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of MARVELL nor the names of contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef __IF_MGE_H__
#define __IF_MGE_H__
#include <arm/mv/mvvar.h>
#define MGE_INTR_COUNT 5 /* ETH controller occupies 5 IRQ lines */
#define MGE_TX_DESC_NUM 256
#define MGE_RX_DESC_NUM 256
#define MGE_RX_QUEUE_NUM 8
#define MGE_RX_DEFAULT_QUEUE 0
#define MGE_CHECKSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP)
/* Interrupt Coalescing types */
#define MGE_IC_RX 0
#define MGE_IC_TX 1
struct mge_desc {
uint32_t cmd_status;
uint16_t buff_size;
uint16_t byte_count;
bus_addr_t buffer;
bus_addr_t next_desc;
};
struct mge_desc_wrapper {
bus_dmamap_t desc_dmap;
struct mge_desc* mge_desc;
bus_addr_t mge_desc_paddr;
bus_dmamap_t buffer_dmap;
struct mbuf* buffer;
};
struct mge_softc {
struct ifnet *ifp; /* per-interface network data */
phandle_t node;
device_t dev;
device_t miibus;
struct mii_data *mii;
struct ifmedia mge_ifmedia;
struct resource *res[1 + MGE_INTR_COUNT]; /* resources */
void *ih_cookie[MGE_INTR_COUNT]; /* interrupt handlers cookies */
struct mtx transmit_lock; /* transmitter lock */
struct mtx receive_lock; /* receiver lock */
uint32_t mge_if_flags;
uint32_t mge_media_status;
struct callout wd_callout;
int wd_timer;
bus_dma_tag_t mge_desc_dtag;
bus_dma_tag_t mge_tx_dtag;
bus_dma_tag_t mge_rx_dtag;
bus_addr_t tx_desc_start;
bus_addr_t rx_desc_start;
uint32_t tx_desc_curr;
uint32_t rx_desc_curr;
uint32_t tx_desc_used_idx;
uint32_t tx_desc_used_count;
uint32_t rx_ic_time;
uint32_t tx_ic_time;
struct mge_desc_wrapper mge_tx_desc[MGE_TX_DESC_NUM];
struct mge_desc_wrapper mge_rx_desc[MGE_RX_DESC_NUM];
uint32_t mge_tfut_ipg_max; /* TX FIFO Urgent Threshold */
uint32_t mge_rx_ipg_max;
uint32_t mge_tx_arb_cfg;
uint32_t mge_tx_tok_cfg;
uint32_t mge_tx_tok_cnt;
uint16_t mge_mtu;
int mge_ver;
int mge_intr_cnt;
uint8_t mge_hw_csum;
int phy_attached;
int switch_attached;
struct mge_softc *phy_sc;
};
/* bus access macros */
#define MGE_READ(sc,reg) bus_read_4((sc)->res[0], (reg))
#define MGE_WRITE(sc,reg,val) bus_write_4((sc)->res[0], (reg), (val))
/* Locking macros */
#define MGE_TRANSMIT_LOCK(sc) do { \
mtx_assert(&(sc)->receive_lock, MA_NOTOWNED); \
mtx_lock(&(sc)->transmit_lock); \
} while (0)
#define MGE_TRANSMIT_UNLOCK(sc) mtx_unlock(&(sc)->transmit_lock)
#define MGE_TRANSMIT_LOCK_ASSERT(sc) mtx_assert(&(sc)->transmit_lock, MA_OWNED)
#define MGE_RECEIVE_LOCK(sc) do { \
mtx_assert(&(sc)->transmit_lock, MA_NOTOWNED); \
mtx_lock(&(sc)->receive_lock); \
} while (0)
#define MGE_RECEIVE_UNLOCK(sc) mtx_unlock(&(sc)->receive_lock)
#define MGE_RECEIVE_LOCK_ASSERT(sc) mtx_assert(&(sc)->receive_lock, MA_OWNED)
#define MGE_GLOBAL_LOCK(sc) do { \
mtx_assert(&(sc)->transmit_lock, MA_NOTOWNED); \
mtx_assert(&(sc)->receive_lock, MA_NOTOWNED); \
mtx_lock(&(sc)->transmit_lock); \
mtx_lock(&(sc)->receive_lock); \
} while (0)
#define MGE_GLOBAL_UNLOCK(sc) do { \
MGE_RECEIVE_UNLOCK(sc); \
MGE_TRANSMIT_UNLOCK(sc); \
} while (0)
#define MGE_GLOBAL_LOCK_ASSERT(sc) do { \
MGE_TRANSMIT_LOCK_ASSERT(sc); \
MGE_RECEIVE_LOCK_ASSERT(sc); \
} while (0)
#define MGE_SMI_LOCK() do { \
sx_assert(&sx_smi, SA_UNLOCKED); \
sx_xlock(&sx_smi); \
} while (0)
#define MGE_SMI_UNLOCK() sx_unlock(&sx_smi)
#define MGE_SMI_LOCK_ASSERT() sx_assert(&sx_smi, SA_XLOCKED)
/* SMI-related macros */
#define MGE_REG_PHYDEV 0x000
#define MGE_REG_SMI 0x004
#define MGE_SMI_READ (1 << 26)
#define MGE_SMI_WRITE (0 << 26)
#define MGE_SMI_READVALID (1 << 27)
#define MGE_SMI_BUSY (1 << 28)
#define MGE_SMI_MASK 0x1fffffff
#define MGE_SMI_DATA_MASK 0xffff
#define MGE_SMI_DELAY 1000
#define MGE_SWITCH_PHYDEV 6
/* Internal Switch SMI Command */
#define SW_SMI_READ_CMD(phy, reg) ((1 << 15) | (1 << 12) | (1 << 11) | (phy << 5) | reg)
#define SW_SMI_WRITE_CMD(phy, reg) ((1 << 15) | (1 << 12) | (1 << 10) | (phy << 5) | reg)
/* TODO verify the timings and retries count w/specs */
#define MGE_SMI_READ_RETRIES 1000
#define MGE_SMI_READ_DELAY 100
#define MGE_SMI_WRITE_RETRIES 1000
#define MGE_SMI_WRITE_DELAY 100
/* MGE registers */
#define MGE_INT_CAUSE 0x080
#define MGE_INT_MASK 0x084
#define MGE_PORT_CONFIG 0x400
#define PORT_CONFIG_UPM (1 << 0) /* promiscuous */
#define PORT_CONFIG_DFLT_RXQ(val) (((val) & 7) << 1) /* default RX queue */
#define PORT_CONFIG_ARO_RXQ(val) (((val) & 7) << 4) /* ARP RX queue */
#define PORT_CONFIG_REJECT_BCAST (1 << 7) /* reject non-ip and non-arp bcast */
#define PORT_CONFIG_REJECT_IP_BCAST (1 << 8) /* reject ip bcast */
#define PORT_CONFIG_REJECT_ARP__BCAST (1 << 9) /* reject arp bcast */
#define PORT_CONFIG_AMNoTxES (1 << 12) /* Automatic mode not updating Error Summary in Tx descriptor */
#define PORT_CONFIG_TCP_CAP (1 << 14) /* capture tcp to a different queue */
#define PORT_CONFIG_UDP_CAP (1 << 15) /* capture udp to a different queue */
#define PORT_CONFIG_TCPQ (7 << 16) /* queue to capture tcp */
#define PORT_CONFIG_UDPQ (7 << 19) /* queue to capture udp */
#define PORT_CONFIG_BPDUQ (7 << 22) /* queue to capture bpdu */
#define PORT_CONFIG_RXCS (1 << 25) /* calculation Rx TCP checksum include pseudo header */
#define MGE_PORT_EXT_CONFIG 0x404
#define MGE_MAC_ADDR_L 0x414
#define MGE_MAC_ADDR_H 0x418
#define MGE_SDMA_CONFIG 0x41c
#define MGE_SDMA_INT_ON_FRAME_BOUND (1 << 0)
#define MGE_SDMA_RX_BURST_SIZE(val) (((val) & 7) << 1)
#define MGE_SDMA_TX_BURST_SIZE(val) (((val) & 7) << 22)
#define MGE_SDMA_BURST_1_WORD 0x0
#define MGE_SDMA_BURST_2_WORD 0x1
#define MGE_SDMA_BURST_4_WORD 0x2
#define MGE_SDMA_BURST_8_WORD 0x3
#define MGE_SDMA_BURST_16_WORD 0x4
#define MGE_SDMA_RX_BYTE_SWAP (1 << 4)
#define MGE_SDMA_TX_BYTE_SWAP (1 << 5)
#define MGE_SDMA_DESC_SWAP_MODE (1 << 6)
#define MGE_PORT_SERIAL_CTRL 0x43c
#define PORT_SERIAL_ENABLE (1 << 0) /* serial port enable */
#define PORT_SERIAL_FORCE_LINKUP (1 << 1) /* force link status to up */
#define PORT_SERIAL_AUTONEG (1 << 2) /* enable autoneg for duplex mode */
#define PORT_SERIAL_AUTONEG_FC (1 << 3) /* enable autoneg for FC */
#define PORT_SERIAL_PAUSE_ADV (1 << 4) /* advertise symmetric FC in autoneg */
#define PORT_SERIAL_FORCE_FC(val) (((val) & 3) << 5) /* pause enable & disable frames conf */
#define PORT_SERIAL_NO_PAUSE_DIS 0x00
#define PORT_SERIAL_PAUSE_DIS 0x01
#define PORT_SERIAL_FORCE_BP(val) (((val) & 3) << 7) /* transmitting JAM configuration */
#define PORT_SERIAL_NO_JAM 0x00
#define PORT_SERIAL_JAM 0x01
#define PORT_SERIAL_RES_BIT9 (1 << 9)
#define PORT_SERIAL_FORCE_LINK_FAIL (1 << 10)
#define PORT_SERIAL_SPEED_AUTONEG (1 << 13)
#define PORT_SERIAL_FORCE_DTE_ADV (1 << 14)
#define PORT_SERIAL_MRU(val) (((val) & 7) << 17)
#define PORT_SERIAL_MRU_1518 0x0
#define PORT_SERIAL_MRU_1522 0x1
#define PORT_SERIAL_MRU_1552 0x2
#define PORT_SERIAL_MRU_9022 0x3
#define PORT_SERIAL_MRU_9192 0x4
#define PORT_SERIAL_MRU_9700 0x5
#define PORT_SERIAL_FULL_DUPLEX (1 << 21)
#define PORT_SERIAL_FULL_DUPLEX_FC (1 << 22)
#define PORT_SERIAL_GMII_SPEED_1000 (1 << 23)
#define PORT_SERIAL_MII_SPEED_100 (1 << 24)
#define MGE_PORT_STATUS 0x444
#define MGE_STATUS_LINKUP (1 << 1)
#define MGE_STATUS_FULL_DUPLEX (1 << 2)
#define MGE_STATUS_FLOW_CONTROL (1 << 3)
#define MGE_STATUS_1000MB (1 << 4)
#define MGE_STATUS_100MB (1 << 5)
#define MGE_STATUS_TX_IN_PROG (1 << 7)
#define MGE_STATUS_TX_FIFO_EMPTY (1 << 10)
#define MGE_TX_QUEUE_CMD 0x448
#define MGE_ENABLE_TXQ (1 << 0)
#define MGE_DISABLE_TXQ (1 << 8)
/* 88F6281 only */
#define MGE_PORT_SERIAL_CTRL1 0x44c
#define MGE_PCS_LOOPBACK (1 << 1)
#define MGE_RGMII_EN (1 << 3)
#define MGE_PORT_RESET (1 << 4)
#define MGE_CLK125_BYPASS (1 << 5)
#define MGE_INBAND_AUTONEG (1 << 6)
#define MGE_INBAND_AUTONEG_BYPASS (1 << 6)
#define MGE_INBAND_AUTONEG_RESTART (1 << 7)
#define MGE_1000BASEX (1 << 11)
#define MGE_BP_COLLISION_COUNT (1 << 15)
#define MGE_COLLISION_LIMIT(val) (((val) & 0x3f) << 16)
#define MGE_DROP_ODD_PREAMBLE (1 << 22)
#define MGE_PORT_INT_CAUSE 0x460
#define MGE_PORT_INT_MASK 0x468
#define MGE_PORT_INT_RX (1 << 0)
#define MGE_PORT_INT_EXTEND (1 << 1)
#define MGE_PORT_INT_RXQ0 (1 << 2)
#define MGE_PORT_INT_RXERR (1 << 10)
#define MGE_PORT_INT_RXERRQ0 (1 << 11)
#define MGE_PORT_INT_SUM (1U << 31)
#define MGE_PORT_INT_CAUSE_EXT 0x464
#define MGE_PORT_INT_MASK_EXT 0x46C
#define MGE_PORT_INT_EXT_TXBUF0 (1 << 0)
#define MGE_PORT_INT_EXT_TXERR0 (1 << 8)
#define MGE_PORT_INT_EXT_PHYSC (1 << 16)
#define MGE_PORT_INT_EXT_RXOR (1 << 18)
#define MGE_PORT_INT_EXT_TXUR (1 << 19)
#define MGE_PORT_INT_EXT_LC (1 << 20)
#define MGE_PORT_INT_EXT_IAR (1 << 23)
#define MGE_PORT_INT_EXT_SUM (1U << 31)
#define MGE_RX_FIFO_URGENT_TRSH 0x470
#define MGE_TX_FIFO_URGENT_TRSH 0x474
#define MGE_FIXED_PRIO_CONF 0x4dc
#define MGE_FIXED_PRIO_EN(q) (1 << (q))
#define MGE_RX_CUR_DESC_PTR(q) (0x60c + ((q)<<4))
#define MGE_RX_QUEUE_CMD 0x680
#define MGE_ENABLE_RXQ(q) (1 << ((q) & 0x7))
#define MGE_ENABLE_RXQ_ALL (0xff)
#define MGE_DISABLE_RXQ(q) (1 << (((q) & 0x7) + 8))
#define MGE_DISABLE_RXQ_ALL (0xff00)
#define MGE_TX_CUR_DESC_PTR 0x6c0
#define MGE_TX_TOKEN_COUNT(q) (0x700 + ((q)<<4))
#define MGE_TX_TOKEN_CONF(q) (0x704 + ((q)<<4))
#define MGE_TX_ARBITER_CONF(q) (0x704 + ((q)<<4))
#define MGE_MCAST_REG_NUMBER 64
#define MGE_DA_FILTER_SPEC_MCAST(i) (0x1400 + ((i) << 2))
#define MGE_DA_FILTER_OTH_MCAST(i) (0x1500 + ((i) << 2))
#define MGE_UCAST_REG_NUMBER 4
#define MGE_DA_FILTER_UCAST(i) (0x1600 + ((i) << 2))
/* TX descriptor bits */
#define MGE_TX_LLC_SNAP (1 << 9)
#define MGE_TX_NOT_FRAGMENT (1 << 10)
#define MGE_TX_VLAN_TAGGED (1 << 15)
#define MGE_TX_UDP (1 << 16)
#define MGE_TX_GEN_L4_CSUM (1 << 17)
#define MGE_TX_GEN_IP_CSUM (1 << 18)
#define MGE_TX_PADDING (1 << 19)
#define MGE_TX_LAST (1 << 20)
#define MGE_TX_FIRST (1 << 21)
#define MGE_TX_ETH_CRC (1 << 22)
#define MGE_TX_EN_INT (1 << 23)
#define MGE_TX_IP_HDR_SIZE(size) ((size << 11) & 0xFFFF)
/* RX descriptor bits */
#define MGE_ERR_SUMMARY (1 << 0)
#define MGE_ERR_MASK (3 << 1)
#define MGE_RX_L4_PROTO_MASK (3 << 21)
#define MGE_RX_L4_PROTO_TCP (0 << 21)
#define MGE_RX_L4_PROTO_UDP (1 << 21)
#define MGE_RX_L3_IS_IP (1 << 24)
#define MGE_RX_IP_OK (1 << 25)
#define MGE_RX_DESC_LAST (1 << 26)
#define MGE_RX_DESC_FIRST (1 << 27)
#define MGE_RX_ENABLE_INT (1 << 29)
#define MGE_RX_L4_CSUM_OK (1 << 30)
#define MGE_DMA_OWNED (1U << 31)
#define MGE_RX_IP_FRAGMENT (1 << 2)
#define MGE_RX_L4_IS_TCP(status) ((status & MGE_RX_L4_PROTO_MASK) \
== MGE_RX_L4_PROTO_TCP)
#define MGE_RX_L4_IS_UDP(status) ((status & MGE_RX_L4_PROTO_MASK) \
== MGE_RX_L4_PROTO_UDP)
/* TX error codes */
#define MGE_TX_ERROR_LC (0 << 1) /* Late collision */
#define MGE_TX_ERROR_UR (1 << 1) /* Underrun error */
#define MGE_TX_ERROR_RL (2 << 1) /* Excessive collision */
/* RX error codes */
#define MGE_RX_ERROR_CE (0 << 1) /* CRC error */
#define MGE_RX_ERROR_OR (1 << 1) /* Overrun error */
#define MGE_RX_ERROR_MF (2 << 1) /* Max frame length error */
#define MGE_RX_ERROR_RE (3 << 1) /* Resource error */
#endif /* __IF_MGE_H__ */