forked from Minki/linux
107dec2749
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com> Signed-off-by: Khuong Dinh <kdinh@apm.com> Signed-off-by: Tanmay Inamdar <tinamdar@apm.com> Tested-by: Toan Le <toanle@apm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
354 lines
9.5 KiB
C
354 lines
9.5 KiB
C
/* Applied Micro X-Gene SoC Ethernet Driver
|
|
*
|
|
* Copyright (c) 2014, Applied Micro Circuits Corporation
|
|
* Authors: Iyappan Subramanian <isubramanian@apm.com>
|
|
* Ravi Patel <rapatel@apm.com>
|
|
* Keyur Chudgar <kchudgar@apm.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by the
|
|
* Free Software Foundation; either version 2 of the License, or (at your
|
|
* option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#ifndef __XGENE_ENET_HW_H__
|
|
#define __XGENE_ENET_HW_H__
|
|
|
|
#include "xgene_enet_main.h"
|
|
|
|
struct xgene_enet_pdata;
|
|
struct xgene_enet_stats;
|
|
struct xgene_enet_desc_ring;
|
|
|
|
/* clears and then set bits */
|
|
static inline void xgene_set_bits(u32 *dst, u32 val, u32 start, u32 len)
|
|
{
|
|
u32 end = start + len - 1;
|
|
u32 mask = GENMASK(end, start);
|
|
|
|
*dst &= ~mask;
|
|
*dst |= (val << start) & mask;
|
|
}
|
|
|
|
static inline u32 xgene_get_bits(u32 val, u32 start, u32 end)
|
|
{
|
|
return (val & GENMASK(end, start)) >> start;
|
|
}
|
|
|
|
enum xgene_enet_rm {
|
|
RM0,
|
|
RM1,
|
|
RM3 = 3
|
|
};
|
|
|
|
#define CSR_RING_ID 0x0008
|
|
#define OVERWRITE BIT(31)
|
|
#define IS_BUFFER_POOL BIT(20)
|
|
#define PREFETCH_BUF_EN BIT(21)
|
|
#define CSR_RING_ID_BUF 0x000c
|
|
#define CSR_PBM_COAL 0x0014
|
|
#define CSR_PBM_CTICK1 0x001c
|
|
#define CSR_PBM_CTICK2 0x0020
|
|
#define CSR_THRESHOLD0_SET1 0x0030
|
|
#define CSR_THRESHOLD1_SET1 0x0034
|
|
#define CSR_RING_NE_INT_MODE 0x017c
|
|
#define CSR_RING_CONFIG 0x006c
|
|
#define CSR_RING_WR_BASE 0x0070
|
|
#define NUM_RING_CONFIG 5
|
|
#define BUFPOOL_MODE 3
|
|
#define INC_DEC_CMD_ADDR 0x002c
|
|
#define UDP_HDR_SIZE 2
|
|
#define BUF_LEN_CODE_2K 0x5000
|
|
|
|
#define CREATE_MASK(pos, len) GENMASK((pos)+(len)-1, (pos))
|
|
#define CREATE_MASK_ULL(pos, len) GENMASK_ULL((pos)+(len)-1, (pos))
|
|
|
|
/* Empty slot soft signature */
|
|
#define EMPTY_SLOT_INDEX 1
|
|
#define EMPTY_SLOT ~0ULL
|
|
|
|
#define WORK_DESC_SIZE 32
|
|
#define BUFPOOL_DESC_SIZE 16
|
|
|
|
#define RING_OWNER_MASK GENMASK(9, 6)
|
|
#define RING_BUFNUM_MASK GENMASK(5, 0)
|
|
|
|
#define SELTHRSH_POS 3
|
|
#define SELTHRSH_LEN 3
|
|
#define RINGADDRL_POS 5
|
|
#define RINGADDRL_LEN 27
|
|
#define RINGADDRH_POS 0
|
|
#define RINGADDRH_LEN 6
|
|
#define RINGSIZE_POS 23
|
|
#define RINGSIZE_LEN 3
|
|
#define RINGTYPE_POS 19
|
|
#define RINGTYPE_LEN 2
|
|
#define RINGMODE_POS 20
|
|
#define RINGMODE_LEN 3
|
|
#define RECOMTIMEOUTL_POS 28
|
|
#define RECOMTIMEOUTL_LEN 3
|
|
#define RECOMTIMEOUTH_POS 0
|
|
#define RECOMTIMEOUTH_LEN 2
|
|
#define NUMMSGSINQ_POS 1
|
|
#define NUMMSGSINQ_LEN 16
|
|
#define ACCEPTLERR BIT(19)
|
|
#define QCOHERENT BIT(4)
|
|
#define RECOMBBUF BIT(27)
|
|
|
|
#define MAC_OFFSET 0x30
|
|
|
|
#define BLOCK_ETH_CSR_OFFSET 0x2000
|
|
#define BLOCK_ETH_CLE_CSR_OFFSET 0x6000
|
|
#define BLOCK_ETH_RING_IF_OFFSET 0x9000
|
|
#define BLOCK_ETH_CLKRST_CSR_OFFSET 0xc000
|
|
#define BLOCK_ETH_DIAG_CSR_OFFSET 0xD000
|
|
#define BLOCK_ETH_MAC_OFFSET 0x0000
|
|
#define BLOCK_ETH_MAC_CSR_OFFSET 0x2800
|
|
|
|
#define CLKEN_ADDR 0xc208
|
|
#define SRST_ADDR 0xc200
|
|
|
|
#define MAC_ADDR_REG_OFFSET 0x00
|
|
#define MAC_COMMAND_REG_OFFSET 0x04
|
|
#define MAC_WRITE_REG_OFFSET 0x08
|
|
#define MAC_READ_REG_OFFSET 0x0c
|
|
#define MAC_COMMAND_DONE_REG_OFFSET 0x10
|
|
|
|
#define MII_MGMT_CONFIG_ADDR 0x20
|
|
#define MII_MGMT_COMMAND_ADDR 0x24
|
|
#define MII_MGMT_ADDRESS_ADDR 0x28
|
|
#define MII_MGMT_CONTROL_ADDR 0x2c
|
|
#define MII_MGMT_STATUS_ADDR 0x30
|
|
#define MII_MGMT_INDICATORS_ADDR 0x34
|
|
|
|
#define BUSY_MASK BIT(0)
|
|
#define READ_CYCLE_MASK BIT(0)
|
|
#define PHY_CONTROL_SET(dst, val) xgene_set_bits(dst, val, 0, 16)
|
|
|
|
#define ENET_SPARE_CFG_REG_ADDR 0x0750
|
|
#define RSIF_CONFIG_REG_ADDR 0x0010
|
|
#define RSIF_RAM_DBG_REG0_ADDR 0x0048
|
|
#define RGMII_REG_0_ADDR 0x07e0
|
|
#define CFG_LINK_AGGR_RESUME_0_ADDR 0x07c8
|
|
#define DEBUG_REG_ADDR 0x0700
|
|
#define CFG_BYPASS_ADDR 0x0294
|
|
#define CLE_BYPASS_REG0_0_ADDR 0x0490
|
|
#define CLE_BYPASS_REG1_0_ADDR 0x0494
|
|
#define CFG_RSIF_FPBUFF_TIMEOUT_EN BIT(31)
|
|
#define RESUME_TX BIT(0)
|
|
#define CFG_SPEED_1250 BIT(24)
|
|
#define TX_PORT0 BIT(0)
|
|
#define CFG_BYPASS_UNISEC_TX BIT(2)
|
|
#define CFG_BYPASS_UNISEC_RX BIT(1)
|
|
#define CFG_CLE_BYPASS_EN0 BIT(31)
|
|
#define CFG_TXCLK_MUXSEL0_SET(dst, val) xgene_set_bits(dst, val, 29, 3)
|
|
#define CFG_RXCLK_MUXSEL0_SET(dst, val) xgene_set_bits(dst, val, 26, 3)
|
|
|
|
#define CFG_CLE_IP_PROTOCOL0_SET(dst, val) xgene_set_bits(dst, val, 16, 2)
|
|
#define CFG_CLE_DSTQID0_SET(dst, val) xgene_set_bits(dst, val, 0, 12)
|
|
#define CFG_CLE_FPSEL0_SET(dst, val) xgene_set_bits(dst, val, 16, 4)
|
|
#define CFG_MACMODE_SET(dst, val) xgene_set_bits(dst, val, 18, 2)
|
|
#define CFG_WAITASYNCRD_SET(dst, val) xgene_set_bits(dst, val, 0, 16)
|
|
#define CFG_CLE_DSTQID0(val) (val & GENMASK(11, 0))
|
|
#define CFG_CLE_FPSEL0(val) ((val << 16) & GENMASK(19, 16))
|
|
#define ICM_CONFIG0_REG_0_ADDR 0x0400
|
|
#define ICM_CONFIG2_REG_0_ADDR 0x0410
|
|
#define RX_DV_GATE_REG_0_ADDR 0x05fc
|
|
#define TX_DV_GATE_EN0 BIT(2)
|
|
#define RX_DV_GATE_EN0 BIT(1)
|
|
#define RESUME_RX0 BIT(0)
|
|
#define ENET_CFGSSQMIWQASSOC_ADDR 0xe0
|
|
#define ENET_CFGSSQMIFPQASSOC_ADDR 0xdc
|
|
#define ENET_CFGSSQMIQMLITEFPQASSOC_ADDR 0xf0
|
|
#define ENET_CFGSSQMIQMLITEWQASSOC_ADDR 0xf4
|
|
#define ENET_CFG_MEM_RAM_SHUTDOWN_ADDR 0x70
|
|
#define ENET_BLOCK_MEM_RDY_ADDR 0x74
|
|
#define MAC_CONFIG_1_ADDR 0x00
|
|
#define MAC_CONFIG_2_ADDR 0x04
|
|
#define MAX_FRAME_LEN_ADDR 0x10
|
|
#define INTERFACE_CONTROL_ADDR 0x38
|
|
#define STATION_ADDR0_ADDR 0x40
|
|
#define STATION_ADDR1_ADDR 0x44
|
|
#define PHY_ADDR_SET(dst, val) xgene_set_bits(dst, val, 8, 5)
|
|
#define REG_ADDR_SET(dst, val) xgene_set_bits(dst, val, 0, 5)
|
|
#define ENET_INTERFACE_MODE2_SET(dst, val) xgene_set_bits(dst, val, 8, 2)
|
|
#define MGMT_CLOCK_SEL_SET(dst, val) xgene_set_bits(dst, val, 0, 3)
|
|
#define SOFT_RESET1 BIT(31)
|
|
#define TX_EN BIT(0)
|
|
#define RX_EN BIT(2)
|
|
#define ENET_LHD_MODE BIT(25)
|
|
#define ENET_GHD_MODE BIT(26)
|
|
#define FULL_DUPLEX2 BIT(0)
|
|
#define PAD_CRC BIT(2)
|
|
#define SCAN_AUTO_INCR BIT(5)
|
|
#define TBYT_ADDR 0x38
|
|
#define TPKT_ADDR 0x39
|
|
#define TDRP_ADDR 0x45
|
|
#define TFCS_ADDR 0x47
|
|
#define TUND_ADDR 0x4a
|
|
|
|
#define TSO_IPPROTO_TCP 1
|
|
|
|
#define USERINFO_POS 0
|
|
#define USERINFO_LEN 32
|
|
#define FPQNUM_POS 32
|
|
#define FPQNUM_LEN 12
|
|
#define NV_POS 50
|
|
#define NV_LEN 1
|
|
#define LL_POS 51
|
|
#define LL_LEN 1
|
|
#define LERR_POS 60
|
|
#define LERR_LEN 3
|
|
#define STASH_POS 52
|
|
#define STASH_LEN 2
|
|
#define BUFDATALEN_POS 48
|
|
#define BUFDATALEN_LEN 15
|
|
#define DATAADDR_POS 0
|
|
#define DATAADDR_LEN 42
|
|
#define COHERENT_POS 63
|
|
#define HENQNUM_POS 48
|
|
#define HENQNUM_LEN 12
|
|
#define TYPESEL_POS 44
|
|
#define TYPESEL_LEN 4
|
|
#define ETHHDR_POS 12
|
|
#define ETHHDR_LEN 8
|
|
#define IC_POS 35 /* Insert CRC */
|
|
#define TCPHDR_POS 0
|
|
#define TCPHDR_LEN 6
|
|
#define IPHDR_POS 6
|
|
#define IPHDR_LEN 6
|
|
#define EC_POS 22 /* Enable checksum */
|
|
#define EC_LEN 1
|
|
#define ET_POS 23 /* Enable TSO */
|
|
#define IS_POS 24 /* IP protocol select */
|
|
#define IS_LEN 1
|
|
#define TYPE_ETH_WORK_MESSAGE_POS 44
|
|
#define LL_BYTES_MSB_POS 56
|
|
#define LL_BYTES_MSB_LEN 8
|
|
#define LL_BYTES_LSB_POS 48
|
|
#define LL_BYTES_LSB_LEN 12
|
|
#define LL_LEN_POS 48
|
|
#define LL_LEN_LEN 8
|
|
#define DATALEN_MASK GENMASK(11, 0)
|
|
|
|
#define LAST_BUFFER (0x7800ULL << BUFDATALEN_POS)
|
|
|
|
struct xgene_enet_raw_desc {
|
|
__le64 m0;
|
|
__le64 m1;
|
|
__le64 m2;
|
|
__le64 m3;
|
|
};
|
|
|
|
struct xgene_enet_raw_desc16 {
|
|
__le64 m0;
|
|
__le64 m1;
|
|
};
|
|
|
|
static inline void xgene_enet_mark_desc_slot_empty(void *desc_slot_ptr)
|
|
{
|
|
__le64 *desc_slot = desc_slot_ptr;
|
|
|
|
desc_slot[EMPTY_SLOT_INDEX] = cpu_to_le64(EMPTY_SLOT);
|
|
}
|
|
|
|
static inline bool xgene_enet_is_desc_slot_empty(void *desc_slot_ptr)
|
|
{
|
|
__le64 *desc_slot = desc_slot_ptr;
|
|
|
|
return (desc_slot[EMPTY_SLOT_INDEX] == cpu_to_le64(EMPTY_SLOT));
|
|
}
|
|
|
|
enum xgene_enet_ring_cfgsize {
|
|
RING_CFGSIZE_512B,
|
|
RING_CFGSIZE_2KB,
|
|
RING_CFGSIZE_16KB,
|
|
RING_CFGSIZE_64KB,
|
|
RING_CFGSIZE_512KB,
|
|
RING_CFGSIZE_INVALID
|
|
};
|
|
|
|
enum xgene_enet_ring_type {
|
|
RING_DISABLED,
|
|
RING_REGULAR,
|
|
RING_BUFPOOL
|
|
};
|
|
|
|
enum xgene_ring_owner {
|
|
RING_OWNER_ETH0,
|
|
RING_OWNER_ETH1,
|
|
RING_OWNER_CPU = 15,
|
|
RING_OWNER_INVALID
|
|
};
|
|
|
|
enum xgene_enet_ring_bufnum {
|
|
RING_BUFNUM_REGULAR = 0x0,
|
|
RING_BUFNUM_BUFPOOL = 0x20,
|
|
RING_BUFNUM_INVALID
|
|
};
|
|
|
|
enum xgene_enet_cmd {
|
|
XGENE_ENET_WR_CMD = BIT(31),
|
|
XGENE_ENET_RD_CMD = BIT(30)
|
|
};
|
|
|
|
enum xgene_enet_err_code {
|
|
HBF_READ_DATA = 3,
|
|
HBF_LL_READ = 4,
|
|
BAD_WORK_MSG = 6,
|
|
BUFPOOL_TIMEOUT = 15,
|
|
INGRESS_CRC = 16,
|
|
INGRESS_CHECKSUM = 17,
|
|
INGRESS_TRUNC_FRAME = 18,
|
|
INGRESS_PKT_LEN = 19,
|
|
INGRESS_PKT_UNDER = 20,
|
|
INGRESS_FIFO_OVERRUN = 21,
|
|
INGRESS_CHECKSUM_COMPUTE = 26,
|
|
ERR_CODE_INVALID
|
|
};
|
|
|
|
static inline enum xgene_ring_owner xgene_enet_ring_owner(u16 id)
|
|
{
|
|
return (id & RING_OWNER_MASK) >> 6;
|
|
}
|
|
|
|
static inline u8 xgene_enet_ring_bufnum(u16 id)
|
|
{
|
|
return id & RING_BUFNUM_MASK;
|
|
}
|
|
|
|
static inline bool xgene_enet_is_bufpool(u16 id)
|
|
{
|
|
return ((id & RING_BUFNUM_MASK) >= 0x20) ? true : false;
|
|
}
|
|
|
|
static inline u16 xgene_enet_get_numslots(u16 id, u32 size)
|
|
{
|
|
bool is_bufpool = xgene_enet_is_bufpool(id);
|
|
|
|
return (is_bufpool) ? size / BUFPOOL_DESC_SIZE :
|
|
size / WORK_DESC_SIZE;
|
|
}
|
|
|
|
void xgene_enet_parse_error(struct xgene_enet_desc_ring *ring,
|
|
struct xgene_enet_pdata *pdata,
|
|
enum xgene_enet_err_code status);
|
|
|
|
int xgene_enet_mdio_config(struct xgene_enet_pdata *pdata);
|
|
void xgene_enet_mdio_remove(struct xgene_enet_pdata *pdata);
|
|
bool xgene_ring_mgr_init(struct xgene_enet_pdata *p);
|
|
|
|
extern const struct xgene_mac_ops xgene_gmac_ops;
|
|
extern const struct xgene_port_ops xgene_gport_ops;
|
|
extern struct xgene_ring_ops xgene_ring1_ops;
|
|
|
|
#endif /* __XGENE_ENET_HW_H__ */
|