--- /dev/null
+/*
+ * Driver for Marvell PPv2 network controller for Armada 375 SoC.
+ *
+ * Copyright (C) 2014 Marvell
+ *
+ * Marcin Wojtas <mw@semihalf.com>
+ *
+ * U-Boot version:
+ * Copyright (C) 2016 Stefan Roese <sr@denx.de>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/device-internal.h>
+#include <dm/lists.h>
+#include <net.h>
+#include <netdev.h>
+#include <config.h>
+#include <malloc.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <phy.h>
+#include <miiphy.h>
+#include <watchdog.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/soc.h>
+#include <linux/compat.h>
+#include <linux/mbus.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/* Some linux -> U-Boot compatibility stuff */
+#define netdev_err(dev, fmt, args...) \
+ printf(fmt, ##args)
+#define netdev_warn(dev, fmt, args...) \
+ printf(fmt, ##args)
+#define netdev_info(dev, fmt, args...) \
+ printf(fmt, ##args)
+#define netdev_dbg(dev, fmt, args...) \
+ printf(fmt, ##args)
+
+#define ETH_ALEN 6 /* Octets in one ethernet addr */
+
+#define __verify_pcpu_ptr(ptr) \
+do { \
+ const void __percpu *__vpp_verify = (typeof((ptr) + 0))NULL; \
+ (void)__vpp_verify; \
+} while (0)
+
+#define VERIFY_PERCPU_PTR(__p) \
+({ \
+ __verify_pcpu_ptr(__p); \
+ (typeof(*(__p)) __kernel __force *)(__p); \
+})
+
+#define per_cpu_ptr(ptr, cpu) ({ (void)(cpu); VERIFY_PERCPU_PTR(ptr); })
+#define smp_processor_id() 0
+#define num_present_cpus() 1
+#define for_each_present_cpu(cpu) \
+ for ((cpu) = 0; (cpu) < 1; (cpu)++)
+
+#define NET_SKB_PAD max(32, MVPP2_CPU_D_CACHE_LINE_SIZE)
+
+#define CONFIG_NR_CPUS 1
+#define ETH_HLEN ETHER_HDR_SIZE /* Total octets in header */
+
+/* 2(HW hdr) 14(MAC hdr) 4(CRC) 32(extra for cache prefetch) */
+#define WRAP (2 + ETH_HLEN + 4 + 32)
+#define MTU 1500
+#define RX_BUFFER_SIZE (ALIGN(MTU + WRAP, ARCH_DMA_MINALIGN))
+
+#define MVPP2_SMI_TIMEOUT 10000
+
+/* RX Fifo Registers */
+#define MVPP2_RX_DATA_FIFO_SIZE_REG(port) (0x00 + 4 * (port))
+#define MVPP2_RX_ATTR_FIFO_SIZE_REG(port) (0x20 + 4 * (port))
+#define MVPP2_RX_MIN_PKT_SIZE_REG 0x60
+#define MVPP2_RX_FIFO_INIT_REG 0x64
+
+/* RX DMA Top Registers */
+#define MVPP2_RX_CTRL_REG(port) (0x140 + 4 * (port))
+#define MVPP2_RX_LOW_LATENCY_PKT_SIZE(s) (((s) & 0xfff) << 16)
+#define MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK BIT(31)
+#define MVPP2_POOL_BUF_SIZE_REG(pool) (0x180 + 4 * (pool))
+#define MVPP2_POOL_BUF_SIZE_OFFSET 5
+#define MVPP2_RXQ_CONFIG_REG(rxq) (0x800 + 4 * (rxq))
+#define MVPP2_SNOOP_PKT_SIZE_MASK 0x1ff
+#define MVPP2_SNOOP_BUF_HDR_MASK BIT(9)
+#define MVPP2_RXQ_POOL_SHORT_OFFS 20
+#define MVPP2_RXQ_POOL_SHORT_MASK 0x700000
+#define MVPP2_RXQ_POOL_LONG_OFFS 24
+#define MVPP2_RXQ_POOL_LONG_MASK 0x7000000
+#define MVPP2_RXQ_PACKET_OFFSET_OFFS 28
+#define MVPP2_RXQ_PACKET_OFFSET_MASK 0x70000000
+#define MVPP2_RXQ_DISABLE_MASK BIT(31)
+
+/* Parser Registers */
+#define MVPP2_PRS_INIT_LOOKUP_REG 0x1000
+#define MVPP2_PRS_PORT_LU_MAX 0xf
+#define MVPP2_PRS_PORT_LU_MASK(port) (0xff << ((port) * 4))
+#define MVPP2_PRS_PORT_LU_VAL(port, val) ((val) << ((port) * 4))
+#define MVPP2_PRS_INIT_OFFS_REG(port) (0x1004 + ((port) & 4))
+#define MVPP2_PRS_INIT_OFF_MASK(port) (0x3f << (((port) % 4) * 8))
+#define MVPP2_PRS_INIT_OFF_VAL(port, val) ((val) << (((port) % 4) * 8))
+#define MVPP2_PRS_MAX_LOOP_REG(port) (0x100c + ((port) & 4))
+#define MVPP2_PRS_MAX_LOOP_MASK(port) (0xff << (((port) % 4) * 8))
+#define MVPP2_PRS_MAX_LOOP_VAL(port, val) ((val) << (((port) % 4) * 8))
+#define MVPP2_PRS_TCAM_IDX_REG 0x1100
+#define MVPP2_PRS_TCAM_DATA_REG(idx) (0x1104 + (idx) * 4)
+#define MVPP2_PRS_TCAM_INV_MASK BIT(31)
+#define MVPP2_PRS_SRAM_IDX_REG 0x1200
+#define MVPP2_PRS_SRAM_DATA_REG(idx) (0x1204 + (idx) * 4)
+#define MVPP2_PRS_TCAM_CTRL_REG 0x1230
+#define MVPP2_PRS_TCAM_EN_MASK BIT(0)
+
+/* Classifier Registers */
+#define MVPP2_CLS_MODE_REG 0x1800
+#define MVPP2_CLS_MODE_ACTIVE_MASK BIT(0)
+#define MVPP2_CLS_PORT_WAY_REG 0x1810
+#define MVPP2_CLS_PORT_WAY_MASK(port) (1 << (port))
+#define MVPP2_CLS_LKP_INDEX_REG 0x1814
+#define MVPP2_CLS_LKP_INDEX_WAY_OFFS 6
+#define MVPP2_CLS_LKP_TBL_REG 0x1818
+#define MVPP2_CLS_LKP_TBL_RXQ_MASK 0xff
+#define MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK BIT(25)
+#define MVPP2_CLS_FLOW_INDEX_REG 0x1820
+#define MVPP2_CLS_FLOW_TBL0_REG 0x1824
+#define MVPP2_CLS_FLOW_TBL1_REG 0x1828
+#define MVPP2_CLS_FLOW_TBL2_REG 0x182c
+#define MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port) (0x1980 + ((port) * 4))
+#define MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS 3
+#define MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK 0x7
+#define MVPP2_CLS_SWFWD_P2HQ_REG(port) (0x19b0 + ((port) * 4))
+#define MVPP2_CLS_SWFWD_PCTRL_REG 0x19d0
+#define MVPP2_CLS_SWFWD_PCTRL_MASK(port) (1 << (port))
+
+/* Descriptor Manager Top Registers */
+#define MVPP2_RXQ_NUM_REG 0x2040
+#define MVPP2_RXQ_DESC_ADDR_REG 0x2044
+#define MVPP2_RXQ_DESC_SIZE_REG 0x2048
+#define MVPP2_RXQ_DESC_SIZE_MASK 0x3ff0
+#define MVPP2_RXQ_STATUS_UPDATE_REG(rxq) (0x3000 + 4 * (rxq))
+#define MVPP2_RXQ_NUM_PROCESSED_OFFSET 0
+#define MVPP2_RXQ_NUM_NEW_OFFSET 16
+#define MVPP2_RXQ_STATUS_REG(rxq) (0x3400 + 4 * (rxq))
+#define MVPP2_RXQ_OCCUPIED_MASK 0x3fff
+#define MVPP2_RXQ_NON_OCCUPIED_OFFSET 16
+#define MVPP2_RXQ_NON_OCCUPIED_MASK 0x3fff0000
+#define MVPP2_RXQ_THRESH_REG 0x204c
+#define MVPP2_OCCUPIED_THRESH_OFFSET 0
+#define MVPP2_OCCUPIED_THRESH_MASK 0x3fff
+#define MVPP2_RXQ_INDEX_REG 0x2050
+#define MVPP2_TXQ_NUM_REG 0x2080
+#define MVPP2_TXQ_DESC_ADDR_REG 0x2084
+#define MVPP2_TXQ_DESC_SIZE_REG 0x2088
+#define MVPP2_TXQ_DESC_SIZE_MASK 0x3ff0
+#define MVPP2_AGGR_TXQ_UPDATE_REG 0x2090
+#define MVPP2_TXQ_THRESH_REG 0x2094
+#define MVPP2_TRANSMITTED_THRESH_OFFSET 16
+#define MVPP2_TRANSMITTED_THRESH_MASK 0x3fff0000
+#define MVPP2_TXQ_INDEX_REG 0x2098
+#define MVPP2_TXQ_PREF_BUF_REG 0x209c
+#define MVPP2_PREF_BUF_PTR(desc) ((desc) & 0xfff)
+#define MVPP2_PREF_BUF_SIZE_4 (BIT(12) | BIT(13))
+#define MVPP2_PREF_BUF_SIZE_16 (BIT(12) | BIT(14))
+#define MVPP2_PREF_BUF_THRESH(val) ((val) << 17)
+#define MVPP2_TXQ_DRAIN_EN_MASK BIT(31)
+#define MVPP2_TXQ_PENDING_REG 0x20a0
+#define MVPP2_TXQ_PENDING_MASK 0x3fff
+#define MVPP2_TXQ_INT_STATUS_REG 0x20a4
+#define MVPP2_TXQ_SENT_REG(txq) (0x3c00 + 4 * (txq))
+#define MVPP2_TRANSMITTED_COUNT_OFFSET 16
+#define MVPP2_TRANSMITTED_COUNT_MASK 0x3fff0000
+#define MVPP2_TXQ_RSVD_REQ_REG 0x20b0
+#define MVPP2_TXQ_RSVD_REQ_Q_OFFSET 16
+#define MVPP2_TXQ_RSVD_RSLT_REG 0x20b4
+#define MVPP2_TXQ_RSVD_RSLT_MASK 0x3fff
+#define MVPP2_TXQ_RSVD_CLR_REG 0x20b8
+#define MVPP2_TXQ_RSVD_CLR_OFFSET 16
+#define MVPP2_AGGR_TXQ_DESC_ADDR_REG(cpu) (0x2100 + 4 * (cpu))
+#define MVPP2_AGGR_TXQ_DESC_SIZE_REG(cpu) (0x2140 + 4 * (cpu))
+#define MVPP2_AGGR_TXQ_DESC_SIZE_MASK 0x3ff0
+#define MVPP2_AGGR_TXQ_STATUS_REG(cpu) (0x2180 + 4 * (cpu))
+#define MVPP2_AGGR_TXQ_PENDING_MASK 0x3fff
+#define MVPP2_AGGR_TXQ_INDEX_REG(cpu) (0x21c0 + 4 * (cpu))
+
+/* MBUS bridge registers */
+#define MVPP2_WIN_BASE(w) (0x4000 + ((w) << 2))
+#define MVPP2_WIN_SIZE(w) (0x4020 + ((w) << 2))
+#define MVPP2_WIN_REMAP(w) (0x4040 + ((w) << 2))
+#define MVPP2_BASE_ADDR_ENABLE 0x4060
+
+/* Interrupt Cause and Mask registers */
+#define MVPP2_ISR_RX_THRESHOLD_REG(rxq) (0x5200 + 4 * (rxq))
+#define MVPP2_ISR_RXQ_GROUP_REG(rxq) (0x5400 + 4 * (rxq))
+#define MVPP2_ISR_ENABLE_REG(port) (0x5420 + 4 * (port))
+#define MVPP2_ISR_ENABLE_INTERRUPT(mask) ((mask) & 0xffff)
+#define MVPP2_ISR_DISABLE_INTERRUPT(mask) (((mask) << 16) & 0xffff0000)
+#define MVPP2_ISR_RX_TX_CAUSE_REG(port) (0x5480 + 4 * (port))
+#define MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK 0xffff
+#define MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK 0xff0000
+#define MVPP2_CAUSE_RX_FIFO_OVERRUN_MASK BIT(24)
+#define MVPP2_CAUSE_FCS_ERR_MASK BIT(25)
+#define MVPP2_CAUSE_TX_FIFO_UNDERRUN_MASK BIT(26)
+#define MVPP2_CAUSE_TX_EXCEPTION_SUM_MASK BIT(29)
+#define MVPP2_CAUSE_RX_EXCEPTION_SUM_MASK BIT(30)
+#define MVPP2_CAUSE_MISC_SUM_MASK BIT(31)
+#define MVPP2_ISR_RX_TX_MASK_REG(port) (0x54a0 + 4 * (port))
+#define MVPP2_ISR_PON_RX_TX_MASK_REG 0x54bc
+#define MVPP2_PON_CAUSE_RXQ_OCCUP_DESC_ALL_MASK 0xffff
+#define MVPP2_PON_CAUSE_TXP_OCCUP_DESC_ALL_MASK 0x3fc00000
+#define MVPP2_PON_CAUSE_MISC_SUM_MASK BIT(31)
+#define MVPP2_ISR_MISC_CAUSE_REG 0x55b0
+
+/* Buffer Manager registers */
+#define MVPP2_BM_POOL_BASE_REG(pool) (0x6000 + ((pool) * 4))
+#define MVPP2_BM_POOL_BASE_ADDR_MASK 0xfffff80
+#define MVPP2_BM_POOL_SIZE_REG(pool) (0x6040 + ((pool) * 4))
+#define MVPP2_BM_POOL_SIZE_MASK 0xfff0
+#define MVPP2_BM_POOL_READ_PTR_REG(pool) (0x6080 + ((pool) * 4))
+#define MVPP2_BM_POOL_GET_READ_PTR_MASK 0xfff0
+#define MVPP2_BM_POOL_PTRS_NUM_REG(pool) (0x60c0 + ((pool) * 4))
+#define MVPP2_BM_POOL_PTRS_NUM_MASK 0xfff0
+#define MVPP2_BM_BPPI_READ_PTR_REG(pool) (0x6100 + ((pool) * 4))
+#define MVPP2_BM_BPPI_PTRS_NUM_REG(pool) (0x6140 + ((pool) * 4))
+#define MVPP2_BM_BPPI_PTR_NUM_MASK 0x7ff
+#define MVPP2_BM_BPPI_PREFETCH_FULL_MASK BIT(16)
+#define MVPP2_BM_POOL_CTRL_REG(pool) (0x6200 + ((pool) * 4))
+#define MVPP2_BM_START_MASK BIT(0)
+#define MVPP2_BM_STOP_MASK BIT(1)
+#define MVPP2_BM_STATE_MASK BIT(4)
+#define MVPP2_BM_LOW_THRESH_OFFS 8
+#define MVPP2_BM_LOW_THRESH_MASK 0x7f00
+#define MVPP2_BM_LOW_THRESH_VALUE(val) ((val) << \
+ MVPP2_BM_LOW_THRESH_OFFS)
+#define MVPP2_BM_HIGH_THRESH_OFFS 16
+#define MVPP2_BM_HIGH_THRESH_MASK 0x7f0000
+#define MVPP2_BM_HIGH_THRESH_VALUE(val) ((val) << \
+ MVPP2_BM_HIGH_THRESH_OFFS)
+#define MVPP2_BM_INTR_CAUSE_REG(pool) (0x6240 + ((pool) * 4))
+#define MVPP2_BM_RELEASED_DELAY_MASK BIT(0)
+#define MVPP2_BM_ALLOC_FAILED_MASK BIT(1)
+#define MVPP2_BM_BPPE_EMPTY_MASK BIT(2)
+#define MVPP2_BM_BPPE_FULL_MASK BIT(3)
+#define MVPP2_BM_AVAILABLE_BP_LOW_MASK BIT(4)
+#define MVPP2_BM_INTR_MASK_REG(pool) (0x6280 + ((pool) * 4))
+#define MVPP2_BM_PHY_ALLOC_REG(pool) (0x6400 + ((pool) * 4))
+#define MVPP2_BM_PHY_ALLOC_GRNTD_MASK BIT(0)
+#define MVPP2_BM_VIRT_ALLOC_REG 0x6440
+#define MVPP2_BM_PHY_RLS_REG(pool) (0x6480 + ((pool) * 4))
+#define MVPP2_BM_PHY_RLS_MC_BUFF_MASK BIT(0)
+#define MVPP2_BM_PHY_RLS_PRIO_EN_MASK BIT(1)
+#define MVPP2_BM_PHY_RLS_GRNTD_MASK BIT(2)
+#define MVPP2_BM_VIRT_RLS_REG 0x64c0
+#define MVPP2_BM_MC_RLS_REG 0x64c4
+#define MVPP2_BM_MC_ID_MASK 0xfff
+#define MVPP2_BM_FORCE_RELEASE_MASK BIT(12)
+
+/* TX Scheduler registers */
+#define MVPP2_TXP_SCHED_PORT_INDEX_REG 0x8000
+#define MVPP2_TXP_SCHED_Q_CMD_REG 0x8004
+#define MVPP2_TXP_SCHED_ENQ_MASK 0xff
+#define MVPP2_TXP_SCHED_DISQ_OFFSET 8
+#define MVPP2_TXP_SCHED_CMD_1_REG 0x8010
+#define MVPP2_TXP_SCHED_PERIOD_REG 0x8018
+#define MVPP2_TXP_SCHED_MTU_REG 0x801c
+#define MVPP2_TXP_MTU_MAX 0x7FFFF
+#define MVPP2_TXP_SCHED_REFILL_REG 0x8020
+#define MVPP2_TXP_REFILL_TOKENS_ALL_MASK 0x7ffff
+#define MVPP2_TXP_REFILL_PERIOD_ALL_MASK 0x3ff00000
+#define MVPP2_TXP_REFILL_PERIOD_MASK(v) ((v) << 20)
+#define MVPP2_TXP_SCHED_TOKEN_SIZE_REG 0x8024
+#define MVPP2_TXP_TOKEN_SIZE_MAX 0xffffffff
+#define MVPP2_TXQ_SCHED_REFILL_REG(q) (0x8040 + ((q) << 2))
+#define MVPP2_TXQ_REFILL_TOKENS_ALL_MASK 0x7ffff
+#define MVPP2_TXQ_REFILL_PERIOD_ALL_MASK 0x3ff00000
+#define MVPP2_TXQ_REFILL_PERIOD_MASK(v) ((v) << 20)
+#define MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(q) (0x8060 + ((q) << 2))
+#define MVPP2_TXQ_TOKEN_SIZE_MAX 0x7fffffff
+#define MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(q) (0x8080 + ((q) << 2))
+#define MVPP2_TXQ_TOKEN_CNTR_MAX 0xffffffff
+
+/* TX general registers */
+#define MVPP2_TX_SNOOP_REG 0x8800
+#define MVPP2_TX_PORT_FLUSH_REG 0x8810
+#define MVPP2_TX_PORT_FLUSH_MASK(port) (1 << (port))
+
+/* LMS registers */
+#define MVPP2_SRC_ADDR_MIDDLE 0x24
+#define MVPP2_SRC_ADDR_HIGH 0x28
+#define MVPP2_PHY_AN_CFG0_REG 0x34
+#define MVPP2_PHY_AN_STOP_SMI0_MASK BIT(7)
+#define MVPP2_MIB_COUNTERS_BASE(port) (0x1000 + ((port) >> 1) * \
+ 0x400 + (port) * 0x400)
+#define MVPP2_MIB_LATE_COLLISION 0x7c
+#define MVPP2_ISR_SUM_MASK_REG 0x220c
+#define MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG 0x305c
+#define MVPP2_EXT_GLOBAL_CTRL_DEFAULT 0x27
+
+/* Per-port registers */
+#define MVPP2_GMAC_CTRL_0_REG 0x0
+#define MVPP2_GMAC_PORT_EN_MASK BIT(0)
+#define MVPP2_GMAC_MAX_RX_SIZE_OFFS 2
+#define MVPP2_GMAC_MAX_RX_SIZE_MASK 0x7ffc
+#define MVPP2_GMAC_MIB_CNTR_EN_MASK BIT(15)
+#define MVPP2_GMAC_CTRL_1_REG 0x4
+#define MVPP2_GMAC_PERIODIC_XON_EN_MASK BIT(1)
+#define MVPP2_GMAC_GMII_LB_EN_MASK BIT(5)
+#define MVPP2_GMAC_PCS_LB_EN_BIT 6
+#define MVPP2_GMAC_PCS_LB_EN_MASK BIT(6)
+#define MVPP2_GMAC_SA_LOW_OFFS 7
+#define MVPP2_GMAC_CTRL_2_REG 0x8
+#define MVPP2_GMAC_INBAND_AN_MASK BIT(0)
+#define MVPP2_GMAC_PCS_ENABLE_MASK BIT(3)
+#define MVPP2_GMAC_PORT_RGMII_MASK BIT(4)
+#define MVPP2_GMAC_PORT_RESET_MASK BIT(6)
+#define MVPP2_GMAC_AUTONEG_CONFIG 0xc
+#define MVPP2_GMAC_FORCE_LINK_DOWN BIT(0)
+#define MVPP2_GMAC_FORCE_LINK_PASS BIT(1)
+#define MVPP2_GMAC_CONFIG_MII_SPEED BIT(5)
+#define MVPP2_GMAC_CONFIG_GMII_SPEED BIT(6)
+#define MVPP2_GMAC_AN_SPEED_EN BIT(7)
+#define MVPP2_GMAC_FC_ADV_EN BIT(9)
+#define MVPP2_GMAC_CONFIG_FULL_DUPLEX BIT(12)
+#define MVPP2_GMAC_AN_DUPLEX_EN BIT(13)
+#define MVPP2_GMAC_PORT_FIFO_CFG_1_REG 0x1c
+#define MVPP2_GMAC_TX_FIFO_MIN_TH_OFFS 6
+#define MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK 0x1fc0
+#define MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(v) (((v) << 6) & \
+ MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK)
+
+#define MVPP2_CAUSE_TXQ_SENT_DESC_ALL_MASK 0xff
+
+/* Descriptor ring Macros */
+#define MVPP2_QUEUE_NEXT_DESC(q, index) \
+ (((index) < (q)->last_desc) ? ((index) + 1) : 0)
+
+/* SMI: 0xc0054 -> offset 0x54 to lms_base */
+#define MVPP2_SMI 0x0054
+#define MVPP2_PHY_REG_MASK 0x1f
+/* SMI register fields */
+#define MVPP2_SMI_DATA_OFFS 0 /* Data */
+#define MVPP2_SMI_DATA_MASK (0xffff << MVPP2_SMI_DATA_OFFS)
+#define MVPP2_SMI_DEV_ADDR_OFFS 16 /* PHY device address */
+#define MVPP2_SMI_REG_ADDR_OFFS 21 /* PHY device reg addr*/
+#define MVPP2_SMI_OPCODE_OFFS 26 /* Write/Read opcode */
+#define MVPP2_SMI_OPCODE_READ (1 << MVPP2_SMI_OPCODE_OFFS)
+#define MVPP2_SMI_READ_VALID (1 << 27) /* Read Valid */
+#define MVPP2_SMI_BUSY (1 << 28) /* Busy */
+
+#define MVPP2_PHY_ADDR_MASK 0x1f
+#define MVPP2_PHY_REG_MASK 0x1f
+
+/* Various constants */
+
+/* Coalescing */
+#define MVPP2_TXDONE_COAL_PKTS_THRESH 15
+#define MVPP2_TXDONE_HRTIMER_PERIOD_NS 1000000UL
+#define MVPP2_RX_COAL_PKTS 32
+#define MVPP2_RX_COAL_USEC 100
+
+/* The two bytes Marvell header. Either contains a special value used
+ * by Marvell switches when a specific hardware mode is enabled (not
+ * supported by this driver) or is filled automatically by zeroes on
+ * the RX side. Those two bytes being at the front of the Ethernet
+ * header, they allow to have the IP header aligned on a 4 bytes
+ * boundary automatically: the hardware skips those two bytes on its
+ * own.
+ */
+#define MVPP2_MH_SIZE 2
+#define MVPP2_ETH_TYPE_LEN 2
+#define MVPP2_PPPOE_HDR_SIZE 8
+#define MVPP2_VLAN_TAG_LEN 4
+
+/* Lbtd 802.3 type */
+#define MVPP2_IP_LBDT_TYPE 0xfffa
+
+#define MVPP2_CPU_D_CACHE_LINE_SIZE 32
+#define MVPP2_TX_CSUM_MAX_SIZE 9800
+
+/* Timeout constants */
+#define MVPP2_TX_DISABLE_TIMEOUT_MSEC 1000
+#define MVPP2_TX_PENDING_TIMEOUT_MSEC 1000
+
+#define MVPP2_TX_MTU_MAX 0x7ffff
+
+/* Maximum number of T-CONTs of PON port */
+#define MVPP2_MAX_TCONT 16
+
+/* Maximum number of supported ports */
+#define MVPP2_MAX_PORTS 4
+
+/* Maximum number of TXQs used by single port */
+#define MVPP2_MAX_TXQ 8
+
+/* Maximum number of RXQs used by single port */
+#define MVPP2_MAX_RXQ 8
+
+/* Default number of TXQs in use */
+#define MVPP2_DEFAULT_TXQ 1
+
+/* Dfault number of RXQs in use */
+#define MVPP2_DEFAULT_RXQ 1
+#define CONFIG_MV_ETH_RXQ 8 /* increment by 8 */
+
+/* Total number of RXQs available to all ports */
+#define MVPP2_RXQ_TOTAL_NUM (MVPP2_MAX_PORTS * MVPP2_MAX_RXQ)
+
+/* Max number of Rx descriptors */
+#define MVPP2_MAX_RXD 16
+
+/* Max number of Tx descriptors */
+#define MVPP2_MAX_TXD 16
+
+/* Amount of Tx descriptors that can be reserved at once by CPU */
+#define MVPP2_CPU_DESC_CHUNK 64
+
+/* Max number of Tx descriptors in each aggregated queue */
+#define MVPP2_AGGR_TXQ_SIZE 256
+
+/* Descriptor aligned size */
+#define MVPP2_DESC_ALIGNED_SIZE 32
+
+/* Descriptor alignment mask */
+#define MVPP2_TX_DESC_ALIGN (MVPP2_DESC_ALIGNED_SIZE - 1)
+
+/* RX FIFO constants */
+#define MVPP2_RX_FIFO_PORT_DATA_SIZE 0x2000
+#define MVPP2_RX_FIFO_PORT_ATTR_SIZE 0x80
+#define MVPP2_RX_FIFO_PORT_MIN_PKT 0x80
+
+/* RX buffer constants */
+#define MVPP2_SKB_SHINFO_SIZE \
+ 0
+
+#define MVPP2_RX_PKT_SIZE(mtu) \
+ ALIGN((mtu) + MVPP2_MH_SIZE + MVPP2_VLAN_TAG_LEN + \
+ ETH_HLEN + ETH_FCS_LEN, MVPP2_CPU_D_CACHE_LINE_SIZE)
+
+#define MVPP2_RX_BUF_SIZE(pkt_size) ((pkt_size) + NET_SKB_PAD)
+#define MVPP2_RX_TOTAL_SIZE(buf_size) ((buf_size) + MVPP2_SKB_SHINFO_SIZE)
+#define MVPP2_RX_MAX_PKT_SIZE(total_size) \
+ ((total_size) - NET_SKB_PAD - MVPP2_SKB_SHINFO_SIZE)
+
+#define MVPP2_BIT_TO_BYTE(bit) ((bit) / 8)
+
+/* IPv6 max L3 address size */
+#define MVPP2_MAX_L3_ADDR_SIZE 16
+
+/* Port flags */
+#define MVPP2_F_LOOPBACK BIT(0)
+
+/* Marvell tag types */
+enum mvpp2_tag_type {
+ MVPP2_TAG_TYPE_NONE = 0,
+ MVPP2_TAG_TYPE_MH = 1,
+ MVPP2_TAG_TYPE_DSA = 2,
+ MVPP2_TAG_TYPE_EDSA = 3,
+ MVPP2_TAG_TYPE_VLAN = 4,
+ MVPP2_TAG_TYPE_LAST = 5
+};
+
+/* Parser constants */
+#define MVPP2_PRS_TCAM_SRAM_SIZE 256
+#define MVPP2_PRS_TCAM_WORDS 6
+#define MVPP2_PRS_SRAM_WORDS 4
+#define MVPP2_PRS_FLOW_ID_SIZE 64
+#define MVPP2_PRS_FLOW_ID_MASK 0x3f
+#define MVPP2_PRS_TCAM_ENTRY_INVALID 1
+#define MVPP2_PRS_TCAM_DSA_TAGGED_BIT BIT(5)
+#define MVPP2_PRS_IPV4_HEAD 0x40
+#define MVPP2_PRS_IPV4_HEAD_MASK 0xf0
+#define MVPP2_PRS_IPV4_MC 0xe0
+#define MVPP2_PRS_IPV4_MC_MASK 0xf0
+#define MVPP2_PRS_IPV4_BC_MASK 0xff
+#define MVPP2_PRS_IPV4_IHL 0x5
+#define MVPP2_PRS_IPV4_IHL_MASK 0xf
+#define MVPP2_PRS_IPV6_MC 0xff
+#define MVPP2_PRS_IPV6_MC_MASK 0xff
+#define MVPP2_PRS_IPV6_HOP_MASK 0xff
+#define MVPP2_PRS_TCAM_PROTO_MASK 0xff
+#define MVPP2_PRS_TCAM_PROTO_MASK_L 0x3f
+#define MVPP2_PRS_DBL_VLANS_MAX 100
+
+/* Tcam structure:
+ * - lookup ID - 4 bits
+ * - port ID - 1 byte
+ * - additional information - 1 byte
+ * - header data - 8 bytes
+ * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(5)->(0).
+ */
+#define MVPP2_PRS_AI_BITS 8
+#define MVPP2_PRS_PORT_MASK 0xff
+#define MVPP2_PRS_LU_MASK 0xf
+#define MVPP2_PRS_TCAM_DATA_BYTE(offs) \
+ (((offs) - ((offs) % 2)) * 2 + ((offs) % 2))
+#define MVPP2_PRS_TCAM_DATA_BYTE_EN(offs) \
+ (((offs) * 2) - ((offs) % 2) + 2)
+#define MVPP2_PRS_TCAM_AI_BYTE 16
+#define MVPP2_PRS_TCAM_PORT_BYTE 17
+#define MVPP2_PRS_TCAM_LU_BYTE 20
+#define MVPP2_PRS_TCAM_EN_OFFS(offs) ((offs) + 2)
+#define MVPP2_PRS_TCAM_INV_WORD 5
+/* Tcam entries ID */
+#define MVPP2_PE_DROP_ALL 0
+#define MVPP2_PE_FIRST_FREE_TID 1
+#define MVPP2_PE_LAST_FREE_TID (MVPP2_PRS_TCAM_SRAM_SIZE - 31)
+#define MVPP2_PE_IP6_EXT_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 30)
+#define MVPP2_PE_MAC_MC_IP6 (MVPP2_PRS_TCAM_SRAM_SIZE - 29)
+#define MVPP2_PE_IP6_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 28)
+#define MVPP2_PE_IP4_ADDR_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 27)
+#define MVPP2_PE_LAST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 26)
+#define MVPP2_PE_FIRST_DEFAULT_FLOW (MVPP2_PRS_TCAM_SRAM_SIZE - 19)
+#define MVPP2_PE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 18)
+#define MVPP2_PE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 17)
+#define MVPP2_PE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 16)
+#define MVPP2_PE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 15)
+#define MVPP2_PE_ETYPE_EDSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 14)
+#define MVPP2_PE_ETYPE_EDSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 13)
+#define MVPP2_PE_ETYPE_DSA_TAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 12)
+#define MVPP2_PE_ETYPE_DSA_UNTAGGED (MVPP2_PRS_TCAM_SRAM_SIZE - 11)
+#define MVPP2_PE_MH_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 10)
+#define MVPP2_PE_DSA_DEFAULT (MVPP2_PRS_TCAM_SRAM_SIZE - 9)
+#define MVPP2_PE_IP6_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 8)
+#define MVPP2_PE_IP4_PROTO_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 7)
+#define MVPP2_PE_ETH_TYPE_UN (MVPP2_PRS_TCAM_SRAM_SIZE - 6)
+#define MVPP2_PE_VLAN_DBL (MVPP2_PRS_TCAM_SRAM_SIZE - 5)
+#define MVPP2_PE_VLAN_NONE (MVPP2_PRS_TCAM_SRAM_SIZE - 4)
+#define MVPP2_PE_MAC_MC_ALL (MVPP2_PRS_TCAM_SRAM_SIZE - 3)
+#define MVPP2_PE_MAC_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 2)
+#define MVPP2_PE_MAC_NON_PROMISCUOUS (MVPP2_PRS_TCAM_SRAM_SIZE - 1)
+
+/* Sram structure
+ * The fields are represented by MVPP2_PRS_TCAM_DATA_REG(3)->(0).
+ */
+#define MVPP2_PRS_SRAM_RI_OFFS 0
+#define MVPP2_PRS_SRAM_RI_WORD 0
+#define MVPP2_PRS_SRAM_RI_CTRL_OFFS 32
+#define MVPP2_PRS_SRAM_RI_CTRL_WORD 1
+#define MVPP2_PRS_SRAM_RI_CTRL_BITS 32
+#define MVPP2_PRS_SRAM_SHIFT_OFFS 64
+#define MVPP2_PRS_SRAM_SHIFT_SIGN_BIT 72
+#define MVPP2_PRS_SRAM_UDF_OFFS 73
+#define MVPP2_PRS_SRAM_UDF_BITS 8
+#define MVPP2_PRS_SRAM_UDF_MASK 0xff
+#define MVPP2_PRS_SRAM_UDF_SIGN_BIT 81
+#define MVPP2_PRS_SRAM_UDF_TYPE_OFFS 82
+#define MVPP2_PRS_SRAM_UDF_TYPE_MASK 0x7
+#define MVPP2_PRS_SRAM_UDF_TYPE_L3 1
+#define MVPP2_PRS_SRAM_UDF_TYPE_L4 4
+#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS 85
+#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK 0x3
+#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD 1
+#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP4_ADD 2
+#define MVPP2_PRS_SRAM_OP_SEL_SHIFT_IP6_ADD 3
+#define MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS 87
+#define MVPP2_PRS_SRAM_OP_SEL_UDF_BITS 2
+#define MVPP2_PRS_SRAM_OP_SEL_UDF_MASK 0x3
+#define MVPP2_PRS_SRAM_OP_SEL_UDF_ADD 0
+#define MVPP2_PRS_SRAM_OP_SEL_UDF_IP4_ADD 2
+#define MVPP2_PRS_SRAM_OP_SEL_UDF_IP6_ADD 3
+#define MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS 89
+#define MVPP2_PRS_SRAM_AI_OFFS 90
+#define MVPP2_PRS_SRAM_AI_CTRL_OFFS 98
+#define MVPP2_PRS_SRAM_AI_CTRL_BITS 8
+#define MVPP2_PRS_SRAM_AI_MASK 0xff
+#define MVPP2_PRS_SRAM_NEXT_LU_OFFS 106
+#define MVPP2_PRS_SRAM_NEXT_LU_MASK 0xf
+#define MVPP2_PRS_SRAM_LU_DONE_BIT 110
+#define MVPP2_PRS_SRAM_LU_GEN_BIT 111
+
+/* Sram result info bits assignment */
+#define MVPP2_PRS_RI_MAC_ME_MASK 0x1
+#define MVPP2_PRS_RI_DSA_MASK 0x2
+#define MVPP2_PRS_RI_VLAN_MASK 0xc
+#define MVPP2_PRS_RI_VLAN_NONE ~(BIT(2) | BIT(3))
+#define MVPP2_PRS_RI_VLAN_SINGLE BIT(2)
+#define MVPP2_PRS_RI_VLAN_DOUBLE BIT(3)
+#define MVPP2_PRS_RI_VLAN_TRIPLE (BIT(2) | BIT(3))
+#define MVPP2_PRS_RI_CPU_CODE_MASK 0x70
+#define MVPP2_PRS_RI_CPU_CODE_RX_SPEC BIT(4)
+#define MVPP2_PRS_RI_L2_CAST_MASK 0x600
+#define MVPP2_PRS_RI_L2_UCAST ~(BIT(9) | BIT(10))
+#define MVPP2_PRS_RI_L2_MCAST BIT(9)
+#define MVPP2_PRS_RI_L2_BCAST BIT(10)
+#define MVPP2_PRS_RI_PPPOE_MASK 0x800
+#define MVPP2_PRS_RI_L3_PROTO_MASK 0x7000
+#define MVPP2_PRS_RI_L3_UN ~(BIT(12) | BIT(13) | BIT(14))
+#define MVPP2_PRS_RI_L3_IP4 BIT(12)
+#define MVPP2_PRS_RI_L3_IP4_OPT BIT(13)
+#define MVPP2_PRS_RI_L3_IP4_OTHER (BIT(12) | BIT(13))
+#define MVPP2_PRS_RI_L3_IP6 BIT(14)
+#define MVPP2_PRS_RI_L3_IP6_EXT (BIT(12) | BIT(14))
+#define MVPP2_PRS_RI_L3_ARP (BIT(13) | BIT(14))
+#define MVPP2_PRS_RI_L3_ADDR_MASK 0x18000
+#define MVPP2_PRS_RI_L3_UCAST ~(BIT(15) | BIT(16))
+#define MVPP2_PRS_RI_L3_MCAST BIT(15)
+#define MVPP2_PRS_RI_L3_BCAST (BIT(15) | BIT(16))
+#define MVPP2_PRS_RI_IP_FRAG_MASK 0x20000
+#define MVPP2_PRS_RI_UDF3_MASK 0x300000
+#define MVPP2_PRS_RI_UDF3_RX_SPECIAL BIT(21)
+#define MVPP2_PRS_RI_L4_PROTO_MASK 0x1c00000
+#define MVPP2_PRS_RI_L4_TCP BIT(22)
+#define MVPP2_PRS_RI_L4_UDP BIT(23)
+#define MVPP2_PRS_RI_L4_OTHER (BIT(22) | BIT(23))
+#define MVPP2_PRS_RI_UDF7_MASK 0x60000000
+#define MVPP2_PRS_RI_UDF7_IP6_LITE BIT(29)
+#define MVPP2_PRS_RI_DROP_MASK 0x80000000
+
+/* Sram additional info bits assignment */
+#define MVPP2_PRS_IPV4_DIP_AI_BIT BIT(0)
+#define MVPP2_PRS_IPV6_NO_EXT_AI_BIT BIT(0)
+#define MVPP2_PRS_IPV6_EXT_AI_BIT BIT(1)
+#define MVPP2_PRS_IPV6_EXT_AH_AI_BIT BIT(2)
+#define MVPP2_PRS_IPV6_EXT_AH_LEN_AI_BIT BIT(3)
+#define MVPP2_PRS_IPV6_EXT_AH_L4_AI_BIT BIT(4)
+#define MVPP2_PRS_SINGLE_VLAN_AI 0
+#define MVPP2_PRS_DBL_VLAN_AI_BIT BIT(7)
+
+/* DSA/EDSA type */
+#define MVPP2_PRS_TAGGED true
+#define MVPP2_PRS_UNTAGGED false
+#define MVPP2_PRS_EDSA true
+#define MVPP2_PRS_DSA false
+
+/* MAC entries, shadow udf */
+enum mvpp2_prs_udf {
+ MVPP2_PRS_UDF_MAC_DEF,
+ MVPP2_PRS_UDF_MAC_RANGE,
+ MVPP2_PRS_UDF_L2_DEF,
+ MVPP2_PRS_UDF_L2_DEF_COPY,
+ MVPP2_PRS_UDF_L2_USER,
+};
+
+/* Lookup ID */
+enum mvpp2_prs_lookup {
+ MVPP2_PRS_LU_MH,
+ MVPP2_PRS_LU_MAC,
+ MVPP2_PRS_LU_DSA,
+ MVPP2_PRS_LU_VLAN,
+ MVPP2_PRS_LU_L2,
+ MVPP2_PRS_LU_PPPOE,
+ MVPP2_PRS_LU_IP4,
+ MVPP2_PRS_LU_IP6,
+ MVPP2_PRS_LU_FLOWS,
+ MVPP2_PRS_LU_LAST,
+};
+
+/* L3 cast enum */
+enum mvpp2_prs_l3_cast {
+ MVPP2_PRS_L3_UNI_CAST,
+ MVPP2_PRS_L3_MULTI_CAST,
+ MVPP2_PRS_L3_BROAD_CAST
+};
+
+/* Classifier constants */
+#define MVPP2_CLS_FLOWS_TBL_SIZE 512
+#define MVPP2_CLS_FLOWS_TBL_DATA_WORDS 3
+#define MVPP2_CLS_LKP_TBL_SIZE 64
+
+/* BM constants */
+#define MVPP2_BM_POOLS_NUM 1
+#define MVPP2_BM_LONG_BUF_NUM 16
+#define MVPP2_BM_SHORT_BUF_NUM 16
+#define MVPP2_BM_POOL_SIZE_MAX (16*1024 - MVPP2_BM_POOL_PTR_ALIGN/4)
+#define MVPP2_BM_POOL_PTR_ALIGN 128
+#define MVPP2_BM_SWF_LONG_POOL(port) 0
+
+/* BM cookie (32 bits) definition */
+#define MVPP2_BM_COOKIE_POOL_OFFS 8
+#define MVPP2_BM_COOKIE_CPU_OFFS 24
+
+/* BM short pool packet size
+ * These value assure that for SWF the total number
+ * of bytes allocated for each buffer will be 512
+ */
+#define MVPP2_BM_SHORT_PKT_SIZE MVPP2_RX_MAX_PKT_SIZE(512)
+
+enum mvpp2_bm_type {
+ MVPP2_BM_FREE,
+ MVPP2_BM_SWF_LONG,
+ MVPP2_BM_SWF_SHORT
+};
+
+/* Definitions */
+
+/* Shared Packet Processor resources */
+struct mvpp2 {
+ /* Shared registers' base addresses */
+ void __iomem *base;
+ void __iomem *lms_base;
+
+ /* List of pointers to port structures */
+ struct mvpp2_port **port_list;
+
+ /* Aggregated TXQs */
+ struct mvpp2_tx_queue *aggr_txqs;
+
+ /* BM pools */
+ struct mvpp2_bm_pool *bm_pools;
+
+ /* PRS shadow table */
+ struct mvpp2_prs_shadow *prs_shadow;
+ /* PRS auxiliary table for double vlan entries control */
+ bool *prs_double_vlans;
+
+ /* Tclk value */
+ u32 tclk;
+
+ struct mii_dev *bus;
+};
+
+struct mvpp2_pcpu_stats {
+ u64 rx_packets;
+ u64 rx_bytes;
+ u64 tx_packets;
+ u64 tx_bytes;
+};
+
+struct mvpp2_port {
+ u8 id;
+
+ int irq;
+
+ struct mvpp2 *priv;
+
+ /* Per-port registers' base address */
+ void __iomem *base;
+
+ struct mvpp2_rx_queue **rxqs;
+ struct mvpp2_tx_queue **txqs;
+
+ int pkt_size;
+
+ u32 pending_cause_rx;
+
+ /* Per-CPU port control */
+ struct mvpp2_port_pcpu __percpu *pcpu;
+
+ /* Flags */
+ unsigned long flags;
+
+ u16 tx_ring_size;
+ u16 rx_ring_size;
+ struct mvpp2_pcpu_stats __percpu *stats;
+
+ struct phy_device *phy_dev;
+ phy_interface_t phy_interface;
+ int phy_node;
+ int phyaddr;
+ int init;
+ unsigned int link;
+ unsigned int duplex;
+ unsigned int speed;
+
+ struct mvpp2_bm_pool *pool_long;
+ struct mvpp2_bm_pool *pool_short;
+
+ /* Index of first port's physical RXQ */
+ u8 first_rxq;
+
+ u8 dev_addr[ETH_ALEN];
+};
+
+/* The mvpp2_tx_desc and mvpp2_rx_desc structures describe the
+ * layout of the transmit and reception DMA descriptors, and their
+ * layout is therefore defined by the hardware design
+ */
+
+#define MVPP2_TXD_L3_OFF_SHIFT 0
+#define MVPP2_TXD_IP_HLEN_SHIFT 8
+#define MVPP2_TXD_L4_CSUM_FRAG BIT(13)
+#define MVPP2_TXD_L4_CSUM_NOT BIT(14)
+#define MVPP2_TXD_IP_CSUM_DISABLE BIT(15)
+#define MVPP2_TXD_PADDING_DISABLE BIT(23)
+#define MVPP2_TXD_L4_UDP BIT(24)
+#define MVPP2_TXD_L3_IP6 BIT(26)
+#define MVPP2_TXD_L_DESC BIT(28)
+#define MVPP2_TXD_F_DESC BIT(29)
+
+#define MVPP2_RXD_ERR_SUMMARY BIT(15)
+#define MVPP2_RXD_ERR_CODE_MASK (BIT(13) | BIT(14))
+#define MVPP2_RXD_ERR_CRC 0x0
+#define MVPP2_RXD_ERR_OVERRUN BIT(13)
+#define MVPP2_RXD_ERR_RESOURCE (BIT(13) | BIT(14))
+#define MVPP2_RXD_BM_POOL_ID_OFFS 16
+#define MVPP2_RXD_BM_POOL_ID_MASK (BIT(16) | BIT(17) | BIT(18))
+#define MVPP2_RXD_HWF_SYNC BIT(21)
+#define MVPP2_RXD_L4_CSUM_OK BIT(22)
+#define MVPP2_RXD_IP4_HEADER_ERR BIT(24)
+#define MVPP2_RXD_L4_TCP BIT(25)
+#define MVPP2_RXD_L4_UDP BIT(26)
+#define MVPP2_RXD_L3_IP4 BIT(28)
+#define MVPP2_RXD_L3_IP6 BIT(30)
+#define MVPP2_RXD_BUF_HDR BIT(31)
+
+struct mvpp2_tx_desc {
+ u32 command; /* Options used by HW for packet transmitting.*/
+ u8 packet_offset; /* the offset from the buffer beginning */
+ u8 phys_txq; /* destination queue ID */
+ u16 data_size; /* data size of transmitted packet in bytes */
+ u32 buf_phys_addr; /* physical addr of transmitted buffer */
+ u32 buf_cookie; /* cookie for access to TX buffer in tx path */
+ u32 reserved1[3]; /* hw_cmd (for future use, BM, PON, PNC) */
+ u32 reserved2; /* reserved (for future use) */
+};
+
+struct mvpp2_rx_desc {
+ u32 status; /* info about received packet */
+ u16 reserved1; /* parser_info (for future use, PnC) */
+ u16 data_size; /* size of received packet in bytes */
+ u32 buf_phys_addr; /* physical address of the buffer */
+ u32 buf_cookie; /* cookie for access to RX buffer in rx path */
+ u16 reserved2; /* gem_port_id (for future use, PON) */
+ u16 reserved3; /* csum_l4 (for future use, PnC) */
+ u8 reserved4; /* bm_qset (for future use, BM) */
+ u8 reserved5;
+ u16 reserved6; /* classify_info (for future use, PnC) */
+ u32 reserved7; /* flow_id (for future use, PnC) */
+ u32 reserved8;
+};
+
+/* Per-CPU Tx queue control */
+struct mvpp2_txq_pcpu {
+ int cpu;
+
+ /* Number of Tx DMA descriptors in the descriptor ring */
+ int size;
+
+ /* Number of currently used Tx DMA descriptor in the
+ * descriptor ring
+ */
+ int count;
+
+ /* Number of Tx DMA descriptors reserved for each CPU */
+ int reserved_num;
+
+ /* Index of last TX DMA descriptor that was inserted */
+ int txq_put_index;
+
+ /* Index of the TX DMA descriptor to be cleaned up */
+ int txq_get_index;
+};
+
+struct mvpp2_tx_queue {
+ /* Physical number of this Tx queue */
+ u8 id;
+
+ /* Logical number of this Tx queue */
+ u8 log_id;
+
+ /* Number of Tx DMA descriptors in the descriptor ring */
+ int size;
+
+ /* Number of currently used Tx DMA descriptor in the descriptor ring */
+ int count;
+
+ /* Per-CPU control of physical Tx queues */
+ struct mvpp2_txq_pcpu __percpu *pcpu;
+
+ u32 done_pkts_coal;
+
+ /* Virtual address of thex Tx DMA descriptors array */
+ struct mvpp2_tx_desc *descs;
+
+ /* DMA address of the Tx DMA descriptors array */
+ dma_addr_t descs_phys;
+
+ /* Index of the last Tx DMA descriptor */
+ int last_desc;
+
+ /* Index of the next Tx DMA descriptor to process */
+ int next_desc_to_proc;
+};
+
+struct mvpp2_rx_queue {
+ /* RX queue number, in the range 0-31 for physical RXQs */
+ u8 id;
+
+ /* Num of rx descriptors in the rx descriptor ring */
+ int size;
+
+ u32 pkts_coal;
+ u32 time_coal;
+
+ /* Virtual address of the RX DMA descriptors array */
+ struct mvpp2_rx_desc *descs;
+
+ /* DMA address of the RX DMA descriptors array */
+ dma_addr_t descs_phys;
+
+ /* Index of the last RX DMA descriptor */
+ int last_desc;
+
+ /* Index of the next RX DMA descriptor to process */
+ int next_desc_to_proc;
+
+ /* ID of port to which physical RXQ is mapped */
+ int port;
+
+ /* Port's logic RXQ number to which physical RXQ is mapped */
+ int logic_rxq;
+};
+
+union mvpp2_prs_tcam_entry {
+ u32 word[MVPP2_PRS_TCAM_WORDS];
+ u8 byte[MVPP2_PRS_TCAM_WORDS * 4];
+};
+
+union mvpp2_prs_sram_entry {
+ u32 word[MVPP2_PRS_SRAM_WORDS];
+ u8 byte[MVPP2_PRS_SRAM_WORDS * 4];
+};
+
+struct mvpp2_prs_entry {
+ u32 index;
+ union mvpp2_prs_tcam_entry tcam;
+ union mvpp2_prs_sram_entry sram;
+};
+
+struct mvpp2_prs_shadow {
+ bool valid;
+ bool finish;
+
+ /* Lookup ID */
+ int lu;
+
+ /* User defined offset */
+ int udf;
+
+ /* Result info */
+ u32 ri;
+ u32 ri_mask;
+};
+
+struct mvpp2_cls_flow_entry {
+ u32 index;
+ u32 data[MVPP2_CLS_FLOWS_TBL_DATA_WORDS];
+};
+
+struct mvpp2_cls_lookup_entry {
+ u32 lkpid;
+ u32 way;
+ u32 data;
+};
+
+struct mvpp2_bm_pool {
+ /* Pool number in the range 0-7 */
+ int id;
+ enum mvpp2_bm_type type;
+
+ /* Buffer Pointers Pool External (BPPE) size */
+ int size;
+ /* Number of buffers for this pool */
+ int buf_num;
+ /* Pool buffer size */
+ int buf_size;
+ /* Packet size */
+ int pkt_size;
+
+ /* BPPE virtual base address */
+ u32 *virt_addr;
+ /* BPPE physical base address */
+ dma_addr_t phys_addr;
+
+ /* Ports using BM pool */
+ u32 port_map;
+
+ /* Occupied buffers indicator */
+ int in_use_thresh;
+};
+
+struct mvpp2_buff_hdr {
+ u32 next_buff_phys_addr;
+ u32 next_buff_virt_addr;
+ u16 byte_count;
+ u16 info;
+ u8 reserved1; /* bm_qset (for future use, BM) */
+};
+
+/* Buffer header info bits */
+#define MVPP2_B_HDR_INFO_MC_ID_MASK 0xfff
+#define MVPP2_B_HDR_INFO_MC_ID(info) ((info) & MVPP2_B_HDR_INFO_MC_ID_MASK)
+#define MVPP2_B_HDR_INFO_LAST_OFFS 12
+#define MVPP2_B_HDR_INFO_LAST_MASK BIT(12)
+#define MVPP2_B_HDR_INFO_IS_LAST(info) \
+ ((info & MVPP2_B_HDR_INFO_LAST_MASK) >> MVPP2_B_HDR_INFO_LAST_OFFS)
+
+/* Static declaractions */
+
+/* Number of RXQs used by single port */
+static int rxq_number = MVPP2_DEFAULT_RXQ;
+/* Number of TXQs used by single port */
+static int txq_number = MVPP2_DEFAULT_TXQ;
+
+#define MVPP2_DRIVER_NAME "mvpp2"
+#define MVPP2_DRIVER_VERSION "1.0"
+
+/*
+ * U-Boot internal data, mostly uncached buffers for descriptors and data
+ */
+struct buffer_location {
+ struct mvpp2_tx_desc *aggr_tx_descs;
+ struct mvpp2_tx_desc *tx_descs;
+ struct mvpp2_rx_desc *rx_descs;
+ u32 *bm_pool[MVPP2_BM_POOLS_NUM];
+ u32 *rx_buffer[MVPP2_BM_LONG_BUF_NUM];
+ int first_rxq;
+};
+
+/*
+ * All 4 interfaces use the same global buffer, since only one interface
+ * can be enabled at once
+ */
+static struct buffer_location buffer_loc;
+
+/*
+ * Page table entries are set to 1MB, or multiples of 1MB
+ * (not < 1MB). driver uses less bd's so use 1MB bdspace.
+ */
+#define BD_SPACE (1 << 20)
+
+/* Utility/helper methods */
+
+static void mvpp2_write(struct mvpp2 *priv, u32 offset, u32 data)
+{
+ writel(data, priv->base + offset);
+}
+
+static u32 mvpp2_read(struct mvpp2 *priv, u32 offset)
+{
+ return readl(priv->base + offset);
+}
+
+static void mvpp2_txq_inc_get(struct mvpp2_txq_pcpu *txq_pcpu)
+{
+ txq_pcpu->txq_get_index++;
+ if (txq_pcpu->txq_get_index == txq_pcpu->size)
+ txq_pcpu->txq_get_index = 0;
+}
+
+/* Get number of physical egress port */
+static inline int mvpp2_egress_port(struct mvpp2_port *port)
+{
+ return MVPP2_MAX_TCONT + port->id;
+}
+
+/* Get number of physical TXQ */
+static inline int mvpp2_txq_phys(int port, int txq)
+{
+ return (MVPP2_MAX_TCONT + port) * MVPP2_MAX_TXQ + txq;
+}
+
+/* Parser configuration routines */
+
+/* Update parser tcam and sram hw entries */
+static int mvpp2_prs_hw_write(struct mvpp2 *priv, struct mvpp2_prs_entry *pe)
+{
+ int i;
+
+ if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1)
+ return -EINVAL;
+
+ /* Clear entry invalidation bit */
+ pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] &= ~MVPP2_PRS_TCAM_INV_MASK;
+
+ /* Write tcam index - indirect access */
+ mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index);
+ for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
+ mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), pe->tcam.word[i]);
+
+ /* Write sram index - indirect access */
+ mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index);
+ for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
+ mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), pe->sram.word[i]);
+
+ return 0;
+}
+
+/* Read tcam entry from hw */
+static int mvpp2_prs_hw_read(struct mvpp2 *priv, struct mvpp2_prs_entry *pe)
+{
+ int i;
+
+ if (pe->index > MVPP2_PRS_TCAM_SRAM_SIZE - 1)
+ return -EINVAL;
+
+ /* Write tcam index - indirect access */
+ mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, pe->index);
+
+ pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] = mvpp2_read(priv,
+ MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD));
+ if (pe->tcam.word[MVPP2_PRS_TCAM_INV_WORD] & MVPP2_PRS_TCAM_INV_MASK)
+ return MVPP2_PRS_TCAM_ENTRY_INVALID;
+
+ for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
+ pe->tcam.word[i] = mvpp2_read(priv, MVPP2_PRS_TCAM_DATA_REG(i));
+
+ /* Write sram index - indirect access */
+ mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, pe->index);
+ for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
+ pe->sram.word[i] = mvpp2_read(priv, MVPP2_PRS_SRAM_DATA_REG(i));
+
+ return 0;
+}
+
+/* Invalidate tcam hw entry */
+static void mvpp2_prs_hw_inv(struct mvpp2 *priv, int index)
+{
+ /* Write index - indirect access */
+ mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index);
+ mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(MVPP2_PRS_TCAM_INV_WORD),
+ MVPP2_PRS_TCAM_INV_MASK);
+}
+
+/* Enable shadow table entry and set its lookup ID */
+static void mvpp2_prs_shadow_set(struct mvpp2 *priv, int index, int lu)
+{
+ priv->prs_shadow[index].valid = true;
+ priv->prs_shadow[index].lu = lu;
+}
+
+/* Update ri fields in shadow table entry */
+static void mvpp2_prs_shadow_ri_set(struct mvpp2 *priv, int index,
+ unsigned int ri, unsigned int ri_mask)
+{
+ priv->prs_shadow[index].ri_mask = ri_mask;
+ priv->prs_shadow[index].ri = ri;
+}
+
+/* Update lookup field in tcam sw entry */
+static void mvpp2_prs_tcam_lu_set(struct mvpp2_prs_entry *pe, unsigned int lu)
+{
+ int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_LU_BYTE);
+
+ pe->tcam.byte[MVPP2_PRS_TCAM_LU_BYTE] = lu;
+ pe->tcam.byte[enable_off] = MVPP2_PRS_LU_MASK;
+}
+
+/* Update mask for single port in tcam sw entry */
+static void mvpp2_prs_tcam_port_set(struct mvpp2_prs_entry *pe,
+ unsigned int port, bool add)
+{
+ int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
+
+ if (add)
+ pe->tcam.byte[enable_off] &= ~(1 << port);
+ else
+ pe->tcam.byte[enable_off] |= 1 << port;
+}
+
+/* Update port map in tcam sw entry */
+static void mvpp2_prs_tcam_port_map_set(struct mvpp2_prs_entry *pe,
+ unsigned int ports)
+{
+ unsigned char port_mask = MVPP2_PRS_PORT_MASK;
+ int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
+
+ pe->tcam.byte[MVPP2_PRS_TCAM_PORT_BYTE] = 0;
+ pe->tcam.byte[enable_off] &= ~port_mask;
+ pe->tcam.byte[enable_off] |= ~ports & MVPP2_PRS_PORT_MASK;
+}
+
+/* Obtain port map from tcam sw entry */
+static unsigned int mvpp2_prs_tcam_port_map_get(struct mvpp2_prs_entry *pe)
+{
+ int enable_off = MVPP2_PRS_TCAM_EN_OFFS(MVPP2_PRS_TCAM_PORT_BYTE);
+
+ return ~(pe->tcam.byte[enable_off]) & MVPP2_PRS_PORT_MASK;
+}
+
+/* Set byte of data and its enable bits in tcam sw entry */
+static void mvpp2_prs_tcam_data_byte_set(struct mvpp2_prs_entry *pe,
+ unsigned int offs, unsigned char byte,
+ unsigned char enable)
+{
+ pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(offs)] = byte;
+ pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(offs)] = enable;
+}
+
+/* Get byte of data and its enable bits from tcam sw entry */
+static void mvpp2_prs_tcam_data_byte_get(struct mvpp2_prs_entry *pe,
+ unsigned int offs, unsigned char *byte,
+ unsigned char *enable)
+{
+ *byte = pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(offs)];
+ *enable = pe->tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(offs)];
+}
+
+/* Set ethertype in tcam sw entry */
+static void mvpp2_prs_match_etype(struct mvpp2_prs_entry *pe, int offset,
+ unsigned short ethertype)
+{
+ mvpp2_prs_tcam_data_byte_set(pe, offset + 0, ethertype >> 8, 0xff);
+ mvpp2_prs_tcam_data_byte_set(pe, offset + 1, ethertype & 0xff, 0xff);
+}
+
+/* Set bits in sram sw entry */
+static void mvpp2_prs_sram_bits_set(struct mvpp2_prs_entry *pe, int bit_num,
+ int val)
+{
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(bit_num)] |= (val << (bit_num % 8));
+}
+
+/* Clear bits in sram sw entry */
+static void mvpp2_prs_sram_bits_clear(struct mvpp2_prs_entry *pe, int bit_num,
+ int val)
+{
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(bit_num)] &= ~(val << (bit_num % 8));
+}
+
+/* Update ri bits in sram sw entry */
+static void mvpp2_prs_sram_ri_update(struct mvpp2_prs_entry *pe,
+ unsigned int bits, unsigned int mask)
+{
+ unsigned int i;
+
+ for (i = 0; i < MVPP2_PRS_SRAM_RI_CTRL_BITS; i++) {
+ int ri_off = MVPP2_PRS_SRAM_RI_OFFS;
+
+ if (!(mask & BIT(i)))
+ continue;
+
+ if (bits & BIT(i))
+ mvpp2_prs_sram_bits_set(pe, ri_off + i, 1);
+ else
+ mvpp2_prs_sram_bits_clear(pe, ri_off + i, 1);
+
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_RI_CTRL_OFFS + i, 1);
+ }
+}
+
+/* Update ai bits in sram sw entry */
+static void mvpp2_prs_sram_ai_update(struct mvpp2_prs_entry *pe,
+ unsigned int bits, unsigned int mask)
+{
+ unsigned int i;
+ int ai_off = MVPP2_PRS_SRAM_AI_OFFS;
+
+ for (i = 0; i < MVPP2_PRS_SRAM_AI_CTRL_BITS; i++) {
+
+ if (!(mask & BIT(i)))
+ continue;
+
+ if (bits & BIT(i))
+ mvpp2_prs_sram_bits_set(pe, ai_off + i, 1);
+ else
+ mvpp2_prs_sram_bits_clear(pe, ai_off + i, 1);
+
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_AI_CTRL_OFFS + i, 1);
+ }
+}
+
+/* Read ai bits from sram sw entry */
+static int mvpp2_prs_sram_ai_get(struct mvpp2_prs_entry *pe)
+{
+ u8 bits;
+ int ai_off = MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_AI_OFFS);
+ int ai_en_off = ai_off + 1;
+ int ai_shift = MVPP2_PRS_SRAM_AI_OFFS % 8;
+
+ bits = (pe->sram.byte[ai_off] >> ai_shift) |
+ (pe->sram.byte[ai_en_off] << (8 - ai_shift));
+
+ return bits;
+}
+
+/* In sram sw entry set lookup ID field of the tcam key to be used in the next
+ * lookup interation
+ */
+static void mvpp2_prs_sram_next_lu_set(struct mvpp2_prs_entry *pe,
+ unsigned int lu)
+{
+ int sram_next_off = MVPP2_PRS_SRAM_NEXT_LU_OFFS;
+
+ mvpp2_prs_sram_bits_clear(pe, sram_next_off,
+ MVPP2_PRS_SRAM_NEXT_LU_MASK);
+ mvpp2_prs_sram_bits_set(pe, sram_next_off, lu);
+}
+
+/* In the sram sw entry set sign and value of the next lookup offset
+ * and the offset value generated to the classifier
+ */
+static void mvpp2_prs_sram_shift_set(struct mvpp2_prs_entry *pe, int shift,
+ unsigned int op)
+{
+ /* Set sign */
+ if (shift < 0) {
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1);
+ shift = 0 - shift;
+ } else {
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_SHIFT_SIGN_BIT, 1);
+ }
+
+ /* Set value */
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_SHIFT_OFFS)] =
+ (unsigned char)shift;
+
+ /* Reset and set operation */
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_MASK);
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_SHIFT_OFFS, op);
+
+ /* Set base offset as current */
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1);
+}
+
+/* In the sram sw entry set sign and value of the user defined offset
+ * generated to the classifier
+ */
+static void mvpp2_prs_sram_offset_set(struct mvpp2_prs_entry *pe,
+ unsigned int type, int offset,
+ unsigned int op)
+{
+ /* Set sign */
+ if (offset < 0) {
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1);
+ offset = 0 - offset;
+ } else {
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_SIGN_BIT, 1);
+ }
+
+ /* Set value */
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_OFFS,
+ MVPP2_PRS_SRAM_UDF_MASK);
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_OFFS, offset);
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_UDF_OFFS +
+ MVPP2_PRS_SRAM_UDF_BITS)] &=
+ ~(MVPP2_PRS_SRAM_UDF_MASK >> (8 - (MVPP2_PRS_SRAM_UDF_OFFS % 8)));
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_UDF_OFFS +
+ MVPP2_PRS_SRAM_UDF_BITS)] |=
+ (offset >> (8 - (MVPP2_PRS_SRAM_UDF_OFFS % 8)));
+
+ /* Set offset type */
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS,
+ MVPP2_PRS_SRAM_UDF_TYPE_MASK);
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_UDF_TYPE_OFFS, type);
+
+ /* Set offset operation */
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_MASK);
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS, op);
+
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS +
+ MVPP2_PRS_SRAM_OP_SEL_UDF_BITS)] &=
+ ~(MVPP2_PRS_SRAM_OP_SEL_UDF_MASK >>
+ (8 - (MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS % 8)));
+
+ pe->sram.byte[MVPP2_BIT_TO_BYTE(MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS +
+ MVPP2_PRS_SRAM_OP_SEL_UDF_BITS)] |=
+ (op >> (8 - (MVPP2_PRS_SRAM_OP_SEL_UDF_OFFS % 8)));
+
+ /* Set base offset as current */
+ mvpp2_prs_sram_bits_clear(pe, MVPP2_PRS_SRAM_OP_SEL_BASE_OFFS, 1);
+}
+
+/* Find parser flow entry */
+static struct mvpp2_prs_entry *mvpp2_prs_flow_find(struct mvpp2 *priv, int flow)
+{
+ struct mvpp2_prs_entry *pe;
+ int tid;
+
+ pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+ if (!pe)
+ return NULL;
+ mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_FLOWS);
+
+ /* Go through the all entires with MVPP2_PRS_LU_FLOWS */
+ for (tid = MVPP2_PRS_TCAM_SRAM_SIZE - 1; tid >= 0; tid--) {
+ u8 bits;
+
+ if (!priv->prs_shadow[tid].valid ||
+ priv->prs_shadow[tid].lu != MVPP2_PRS_LU_FLOWS)
+ continue;
+
+ pe->index = tid;
+ mvpp2_prs_hw_read(priv, pe);
+ bits = mvpp2_prs_sram_ai_get(pe);
+
+ /* Sram store classification lookup ID in AI bits [5:0] */
+ if ((bits & MVPP2_PRS_FLOW_ID_MASK) == flow)
+ return pe;
+ }
+ kfree(pe);
+
+ return NULL;
+}
+
+/* Return first free tcam index, seeking from start to end */
+static int mvpp2_prs_tcam_first_free(struct mvpp2 *priv, unsigned char start,
+ unsigned char end)
+{
+ int tid;
+
+ if (start > end)
+ swap(start, end);
+
+ if (end >= MVPP2_PRS_TCAM_SRAM_SIZE)
+ end = MVPP2_PRS_TCAM_SRAM_SIZE - 1;
+
+ for (tid = start; tid <= end; tid++) {
+ if (!priv->prs_shadow[tid].valid)
+ return tid;
+ }
+
+ return -EINVAL;
+}
+
+/* Enable/disable dropping all mac da's */
+static void mvpp2_prs_mac_drop_all_set(struct mvpp2 *priv, int port, bool add)
+{
+ struct mvpp2_prs_entry pe;
+
+ if (priv->prs_shadow[MVPP2_PE_DROP_ALL].valid) {
+ /* Entry exist - update port only */
+ pe.index = MVPP2_PE_DROP_ALL;
+ mvpp2_prs_hw_read(priv, &pe);
+ } else {
+ /* Entry doesn't exist - create new */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
+ pe.index = MVPP2_PE_DROP_ALL;
+
+ /* Non-promiscuous mode for all ports - DROP unknown packets */
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK,
+ MVPP2_PRS_RI_DROP_MASK);
+
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+
+ /* Update shadow table */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
+
+ /* Mask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, 0);
+ }
+
+ /* Update port mask */
+ mvpp2_prs_tcam_port_set(&pe, port, add);
+
+ mvpp2_prs_hw_write(priv, &pe);
+}
+
+/* Set port to promiscuous mode */
+static void mvpp2_prs_mac_promisc_set(struct mvpp2 *priv, int port, bool add)
+{
+ struct mvpp2_prs_entry pe;
+
+ /* Promiscuous mode - Accept unknown packets */
+
+ if (priv->prs_shadow[MVPP2_PE_MAC_PROMISCUOUS].valid) {
+ /* Entry exist - update port only */
+ pe.index = MVPP2_PE_MAC_PROMISCUOUS;
+ mvpp2_prs_hw_read(priv, &pe);
+ } else {
+ /* Entry doesn't exist - create new */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
+ pe.index = MVPP2_PE_MAC_PROMISCUOUS;
+
+ /* Continue - set next lookup */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA);
+
+ /* Set result info bits */
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L2_UCAST,
+ MVPP2_PRS_RI_L2_CAST_MASK);
+
+ /* Shift to ethertype */
+ mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+
+ /* Mask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, 0);
+
+ /* Update shadow table */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
+ }
+
+ /* Update port mask */
+ mvpp2_prs_tcam_port_set(&pe, port, add);
+
+ mvpp2_prs_hw_write(priv, &pe);
+}
+
+/* Accept multicast */
+static void mvpp2_prs_mac_multi_set(struct mvpp2 *priv, int port, int index,
+ bool add)
+{
+ struct mvpp2_prs_entry pe;
+ unsigned char da_mc;
+
+ /* Ethernet multicast address first byte is
+ * 0x01 for IPv4 and 0x33 for IPv6
+ */
+ da_mc = (index == MVPP2_PE_MAC_MC_ALL) ? 0x01 : 0x33;
+
+ if (priv->prs_shadow[index].valid) {
+ /* Entry exist - update port only */
+ pe.index = index;
+ mvpp2_prs_hw_read(priv, &pe);
+ } else {
+ /* Entry doesn't exist - create new */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
+ pe.index = index;
+
+ /* Continue - set next lookup */
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_DSA);
+
+ /* Set result info bits */
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L2_MCAST,
+ MVPP2_PRS_RI_L2_CAST_MASK);
+
+ /* Update tcam entry data first byte */
+ mvpp2_prs_tcam_data_byte_set(&pe, 0, da_mc, 0xff);
+
+ /* Shift to ethertype */
+ mvpp2_prs_sram_shift_set(&pe, 2 * ETH_ALEN,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+
+ /* Mask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, 0);
+
+ /* Update shadow table */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
+ }
+
+ /* Update port mask */
+ mvpp2_prs_tcam_port_set(&pe, port, add);
+
+ mvpp2_prs_hw_write(priv, &pe);
+}
+
+/* Parser per-port initialization */
+static void mvpp2_prs_hw_port_init(struct mvpp2 *priv, int port, int lu_first,
+ int lu_max, int offset)
+{
+ u32 val;
+
+ /* Set lookup ID */
+ val = mvpp2_read(priv, MVPP2_PRS_INIT_LOOKUP_REG);
+ val &= ~MVPP2_PRS_PORT_LU_MASK(port);
+ val |= MVPP2_PRS_PORT_LU_VAL(port, lu_first);
+ mvpp2_write(priv, MVPP2_PRS_INIT_LOOKUP_REG, val);
+
+ /* Set maximum number of loops for packet received from port */
+ val = mvpp2_read(priv, MVPP2_PRS_MAX_LOOP_REG(port));
+ val &= ~MVPP2_PRS_MAX_LOOP_MASK(port);
+ val |= MVPP2_PRS_MAX_LOOP_VAL(port, lu_max);
+ mvpp2_write(priv, MVPP2_PRS_MAX_LOOP_REG(port), val);
+
+ /* Set initial offset for packet header extraction for the first
+ * searching loop
+ */
+ val = mvpp2_read(priv, MVPP2_PRS_INIT_OFFS_REG(port));
+ val &= ~MVPP2_PRS_INIT_OFF_MASK(port);
+ val |= MVPP2_PRS_INIT_OFF_VAL(port, offset);
+ mvpp2_write(priv, MVPP2_PRS_INIT_OFFS_REG(port), val);
+}
+
+/* Default flow entries initialization for all ports */
+static void mvpp2_prs_def_flow_init(struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+ int port;
+
+ for (port = 0; port < MVPP2_MAX_PORTS; port++) {
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ pe.index = MVPP2_PE_FIRST_DEFAULT_FLOW - port;
+
+ /* Mask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, 0);
+
+ /* Set flow ID*/
+ mvpp2_prs_sram_ai_update(&pe, port, MVPP2_PRS_FLOW_ID_MASK);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_hw_write(priv, &pe);
+ }
+}
+
+/* Set default entry for Marvell Header field */
+static void mvpp2_prs_mh_init(struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+
+ pe.index = MVPP2_PE_MH_DEFAULT;
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MH);
+ mvpp2_prs_sram_shift_set(&pe, MVPP2_MH_SIZE,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_MAC);
+
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MH);
+ mvpp2_prs_hw_write(priv, &pe);
+}
+
+/* Set default entires (place holder) for promiscuous, non-promiscuous and
+ * multicast MAC addresses
+ */
+static void mvpp2_prs_mac_init(struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+
+ /* Non-promiscuous mode for all ports - DROP unknown packets */
+ pe.index = MVPP2_PE_MAC_NON_PROMISCUOUS;
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_MAC);
+
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_DROP_MASK,
+ MVPP2_PRS_RI_DROP_MASK);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_MAC);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* place holders only - no ports */
+ mvpp2_prs_mac_drop_all_set(priv, 0, false);
+ mvpp2_prs_mac_promisc_set(priv, 0, false);
+ mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_ALL, 0, false);
+ mvpp2_prs_mac_multi_set(priv, MVPP2_PE_MAC_MC_IP6, 0, false);
+}
+
+/* Match basic ethertypes */
+static int mvpp2_prs_etype_init(struct mvpp2 *priv)
+{
+ struct mvpp2_prs_entry pe;
+ int tid;
+
+ /* Ethertype: PPPoE */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
+ pe.index = tid;
+
+ mvpp2_prs_match_etype(&pe, 0, PROT_PPP_SES);
+
+ mvpp2_prs_sram_shift_set(&pe, MVPP2_PPPOE_HDR_SIZE,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_PPPOE);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_PPPOE_MASK,
+ MVPP2_PRS_RI_PPPOE_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = false;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_PPPOE_MASK,
+ MVPP2_PRS_RI_PPPOE_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Ethertype: ARP */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
+ pe.index = tid;
+
+ mvpp2_prs_match_etype(&pe, 0, PROT_ARP);
+
+ /* Generate flow in the next iteration*/
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_ARP,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ /* Set L3 offset */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = true;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_ARP,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Ethertype: LBTD */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
+ pe.index = tid;
+
+ mvpp2_prs_match_etype(&pe, 0, MVPP2_IP_LBDT_TYPE);
+
+ /* Generate flow in the next iteration*/
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
+ MVPP2_PRS_RI_UDF3_RX_SPECIAL,
+ MVPP2_PRS_RI_CPU_CODE_MASK |
+ MVPP2_PRS_RI_UDF3_MASK);
+ /* Set L3 offset */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = true;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_CPU_CODE_RX_SPEC |
+ MVPP2_PRS_RI_UDF3_RX_SPECIAL,
+ MVPP2_PRS_RI_CPU_CODE_MASK |
+ MVPP2_PRS_RI_UDF3_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Ethertype: IPv4 without options */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
+ pe.index = tid;
+
+ mvpp2_prs_match_etype(&pe, 0, PROT_IP);
+ mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_IPV4_HEAD | MVPP2_PRS_IPV4_IHL,
+ MVPP2_PRS_IPV4_HEAD_MASK |
+ MVPP2_PRS_IPV4_IHL_MASK);
+
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP4);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ /* Skip eth_type + 4 bytes of IP header */
+ mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 4,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ /* Set L3 offset */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = false;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Ethertype: IPv4 with options */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ pe.index = tid;
+
+ /* Clear tcam data before updating */
+ pe.tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE(MVPP2_ETH_TYPE_LEN)] = 0x0;
+ pe.tcam.byte[MVPP2_PRS_TCAM_DATA_BYTE_EN(MVPP2_ETH_TYPE_LEN)] = 0x0;
+
+ mvpp2_prs_tcam_data_byte_set(&pe, MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_IPV4_HEAD,
+ MVPP2_PRS_IPV4_HEAD_MASK);
+
+ /* Clear ri before updating */
+ pe.sram.word[MVPP2_PRS_SRAM_RI_WORD] = 0x0;
+ pe.sram.word[MVPP2_PRS_SRAM_RI_CTRL_WORD] = 0x0;
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP4_OPT,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = false;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP4_OPT,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Ethertype: IPv6 without options */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ MVPP2_PE_LAST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
+ pe.index = tid;
+
+ mvpp2_prs_match_etype(&pe, 0, PROT_IPV6);
+
+ /* Skip DIP of IPV6 header */
+ mvpp2_prs_sram_shift_set(&pe, MVPP2_ETH_TYPE_LEN + 8 +
+ MVPP2_MAX_L3_ADDR_SIZE,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_IP6);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_IP6,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ /* Set L3 offset */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = false;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_IP6,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ /* Default entry for MVPP2_PRS_LU_L2 - Unknown ethtype */
+ memset(&pe, 0, sizeof(struct mvpp2_prs_entry));
+ mvpp2_prs_tcam_lu_set(&pe, MVPP2_PRS_LU_L2);
+ pe.index = MVPP2_PE_ETH_TYPE_UN;
+
+ /* Unmask all ports */
+ mvpp2_prs_tcam_port_map_set(&pe, MVPP2_PRS_PORT_MASK);
+
+ /* Generate flow in the next iteration*/
+ mvpp2_prs_sram_bits_set(&pe, MVPP2_PRS_SRAM_LU_GEN_BIT, 1);
+ mvpp2_prs_sram_next_lu_set(&pe, MVPP2_PRS_LU_FLOWS);
+ mvpp2_prs_sram_ri_update(&pe, MVPP2_PRS_RI_L3_UN,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ /* Set L3 offset even it's unknown L3 */
+ mvpp2_prs_sram_offset_set(&pe, MVPP2_PRS_SRAM_UDF_TYPE_L3,
+ MVPP2_ETH_TYPE_LEN,
+ MVPP2_PRS_SRAM_OP_SEL_UDF_ADD);
+
+ /* Update shadow table and hw entry */
+ mvpp2_prs_shadow_set(priv, pe.index, MVPP2_PRS_LU_L2);
+ priv->prs_shadow[pe.index].udf = MVPP2_PRS_UDF_L2_DEF;
+ priv->prs_shadow[pe.index].finish = true;
+ mvpp2_prs_shadow_ri_set(priv, pe.index, MVPP2_PRS_RI_L3_UN,
+ MVPP2_PRS_RI_L3_PROTO_MASK);
+ mvpp2_prs_hw_write(priv, &pe);
+
+ return 0;
+}
+
+/* Parser default initialization */
+static int mvpp2_prs_default_init(struct udevice *dev,
+ struct mvpp2 *priv)
+{
+ int err, index, i;
+
+ /* Enable tcam table */
+ mvpp2_write(priv, MVPP2_PRS_TCAM_CTRL_REG, MVPP2_PRS_TCAM_EN_MASK);
+
+ /* Clear all tcam and sram entries */
+ for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++) {
+ mvpp2_write(priv, MVPP2_PRS_TCAM_IDX_REG, index);
+ for (i = 0; i < MVPP2_PRS_TCAM_WORDS; i++)
+ mvpp2_write(priv, MVPP2_PRS_TCAM_DATA_REG(i), 0);
+
+ mvpp2_write(priv, MVPP2_PRS_SRAM_IDX_REG, index);
+ for (i = 0; i < MVPP2_PRS_SRAM_WORDS; i++)
+ mvpp2_write(priv, MVPP2_PRS_SRAM_DATA_REG(i), 0);
+ }
+
+ /* Invalidate all tcam entries */
+ for (index = 0; index < MVPP2_PRS_TCAM_SRAM_SIZE; index++)
+ mvpp2_prs_hw_inv(priv, index);
+
+ priv->prs_shadow = devm_kcalloc(dev, MVPP2_PRS_TCAM_SRAM_SIZE,
+ sizeof(struct mvpp2_prs_shadow),
+ GFP_KERNEL);
+ if (!priv->prs_shadow)
+ return -ENOMEM;
+
+ /* Always start from lookup = 0 */
+ for (index = 0; index < MVPP2_MAX_PORTS; index++)
+ mvpp2_prs_hw_port_init(priv, index, MVPP2_PRS_LU_MH,
+ MVPP2_PRS_PORT_LU_MAX, 0);
+
+ mvpp2_prs_def_flow_init(priv);
+
+ mvpp2_prs_mh_init(priv);
+
+ mvpp2_prs_mac_init(priv);
+
+ err = mvpp2_prs_etype_init(priv);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+/* Compare MAC DA with tcam entry data */
+static bool mvpp2_prs_mac_range_equals(struct mvpp2_prs_entry *pe,
+ const u8 *da, unsigned char *mask)
+{
+ unsigned char tcam_byte, tcam_mask;
+ int index;
+
+ for (index = 0; index < ETH_ALEN; index++) {
+ mvpp2_prs_tcam_data_byte_get(pe, index, &tcam_byte, &tcam_mask);
+ if (tcam_mask != mask[index])
+ return false;
+
+ if ((tcam_mask & tcam_byte) != (da[index] & mask[index]))
+ return false;
+ }
+
+ return true;
+}
+
+/* Find tcam entry with matched pair <MAC DA, port> */
+static struct mvpp2_prs_entry *
+mvpp2_prs_mac_da_range_find(struct mvpp2 *priv, int pmap, const u8 *da,
+ unsigned char *mask, int udf_type)
+{
+ struct mvpp2_prs_entry *pe;
+ int tid;
+
+ pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+ if (!pe)
+ return NULL;
+ mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
+
+ /* Go through the all entires with MVPP2_PRS_LU_MAC */
+ for (tid = MVPP2_PE_FIRST_FREE_TID;
+ tid <= MVPP2_PE_LAST_FREE_TID; tid++) {
+ unsigned int entry_pmap;
+
+ if (!priv->prs_shadow[tid].valid ||
+ (priv->prs_shadow[tid].lu != MVPP2_PRS_LU_MAC) ||
+ (priv->prs_shadow[tid].udf != udf_type))
+ continue;
+
+ pe->index = tid;
+ mvpp2_prs_hw_read(priv, pe);
+ entry_pmap = mvpp2_prs_tcam_port_map_get(pe);
+
+ if (mvpp2_prs_mac_range_equals(pe, da, mask) &&
+ entry_pmap == pmap)
+ return pe;
+ }
+ kfree(pe);
+
+ return NULL;
+}
+
+/* Update parser's mac da entry */
+static int mvpp2_prs_mac_da_accept(struct mvpp2 *priv, int port,
+ const u8 *da, bool add)
+{
+ struct mvpp2_prs_entry *pe;
+ unsigned int pmap, len, ri;
+ unsigned char mask[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+ int tid;
+
+ /* Scan TCAM and see if entry with this <MAC DA, port> already exist */
+ pe = mvpp2_prs_mac_da_range_find(priv, (1 << port), da, mask,
+ MVPP2_PRS_UDF_MAC_DEF);
+
+ /* No such entry */
+ if (!pe) {
+ if (!add)
+ return 0;
+
+ /* Create new TCAM entry */
+ /* Find first range mac entry*/
+ for (tid = MVPP2_PE_FIRST_FREE_TID;
+ tid <= MVPP2_PE_LAST_FREE_TID; tid++)
+ if (priv->prs_shadow[tid].valid &&
+ (priv->prs_shadow[tid].lu == MVPP2_PRS_LU_MAC) &&
+ (priv->prs_shadow[tid].udf ==
+ MVPP2_PRS_UDF_MAC_RANGE))
+ break;
+
+ /* Go through the all entries from first to last */
+ tid = mvpp2_prs_tcam_first_free(priv, MVPP2_PE_FIRST_FREE_TID,
+ tid - 1);
+ if (tid < 0)
+ return tid;
+
+ pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+ if (!pe)
+ return -1;
+ mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_MAC);
+ pe->index = tid;
+
+ /* Mask all ports */
+ mvpp2_prs_tcam_port_map_set(pe, 0);
+ }
+
+ /* Update port mask */
+ mvpp2_prs_tcam_port_set(pe, port, add);
+
+ /* Invalidate the entry if no ports are left enabled */
+ pmap = mvpp2_prs_tcam_port_map_get(pe);
+ if (pmap == 0) {
+ if (add) {
+ kfree(pe);
+ return -1;
+ }
+ mvpp2_prs_hw_inv(priv, pe->index);
+ priv->prs_shadow[pe->index].valid = false;
+ kfree(pe);
+ return 0;
+ }
+
+ /* Continue - set next lookup */
+ mvpp2_prs_sram_next_lu_set(pe, MVPP2_PRS_LU_DSA);
+
+ /* Set match on DA */
+ len = ETH_ALEN;
+ while (len--)
+ mvpp2_prs_tcam_data_byte_set(pe, len, da[len], 0xff);
+
+ /* Set result info bits */
+ ri = MVPP2_PRS_RI_L2_UCAST | MVPP2_PRS_RI_MAC_ME_MASK;
+
+ mvpp2_prs_sram_ri_update(pe, ri, MVPP2_PRS_RI_L2_CAST_MASK |
+ MVPP2_PRS_RI_MAC_ME_MASK);
+ mvpp2_prs_shadow_ri_set(priv, pe->index, ri, MVPP2_PRS_RI_L2_CAST_MASK |
+ MVPP2_PRS_RI_MAC_ME_MASK);
+
+ /* Shift to ethertype */
+ mvpp2_prs_sram_shift_set(pe, 2 * ETH_ALEN,
+ MVPP2_PRS_SRAM_OP_SEL_SHIFT_ADD);
+
+ /* Update shadow table and hw entry */
+ priv->prs_shadow[pe->index].udf = MVPP2_PRS_UDF_MAC_DEF;
+ mvpp2_prs_shadow_set(priv, pe->index, MVPP2_PRS_LU_MAC);
+ mvpp2_prs_hw_write(priv, pe);
+
+ kfree(pe);
+
+ return 0;
+}
+
+static int mvpp2_prs_update_mac_da(struct mvpp2_port *port, const u8 *da)
+{
+ int err;
+
+ /* Remove old parser entry */
+ err = mvpp2_prs_mac_da_accept(port->priv, port->id, port->dev_addr,
+ false);
+ if (err)
+ return err;
+
+ /* Add new parser entry */
+ err = mvpp2_prs_mac_da_accept(port->priv, port->id, da, true);
+ if (err)
+ return err;
+
+ /* Set addr in the device */
+ memcpy(port->dev_addr, da, ETH_ALEN);
+
+ return 0;
+}
+
+/* Set prs flow for the port */
+static int mvpp2_prs_def_flow(struct mvpp2_port *port)
+{
+ struct mvpp2_prs_entry *pe;
+ int tid;
+
+ pe = mvpp2_prs_flow_find(port->priv, port->id);
+
+ /* Such entry not exist */
+ if (!pe) {
+ /* Go through the all entires from last to first */
+ tid = mvpp2_prs_tcam_first_free(port->priv,
+ MVPP2_PE_LAST_FREE_TID,
+ MVPP2_PE_FIRST_FREE_TID);
+ if (tid < 0)
+ return tid;
+
+ pe = kzalloc(sizeof(*pe), GFP_KERNEL);
+ if (!pe)
+ return -ENOMEM;
+
+ mvpp2_prs_tcam_lu_set(pe, MVPP2_PRS_LU_FLOWS);
+ pe->index = tid;
+
+ /* Set flow ID*/
+ mvpp2_prs_sram_ai_update(pe, port->id, MVPP2_PRS_FLOW_ID_MASK);
+ mvpp2_prs_sram_bits_set(pe, MVPP2_PRS_SRAM_LU_DONE_BIT, 1);
+
+ /* Update shadow table */
+ mvpp2_prs_shadow_set(port->priv, pe->index, MVPP2_PRS_LU_FLOWS);
+ }
+
+ mvpp2_prs_tcam_port_map_set(pe, (1 << port->id));
+ mvpp2_prs_hw_write(port->priv, pe);
+ kfree(pe);
+
+ return 0;
+}
+
+/* Classifier configuration routines */
+
+/* Update classification flow table registers */
+static void mvpp2_cls_flow_write(struct mvpp2 *priv,
+ struct mvpp2_cls_flow_entry *fe)
+{
+ mvpp2_write(priv, MVPP2_CLS_FLOW_INDEX_REG, fe->index);
+ mvpp2_write(priv, MVPP2_CLS_FLOW_TBL0_REG, fe->data[0]);
+ mvpp2_write(priv, MVPP2_CLS_FLOW_TBL1_REG, fe->data[1]);
+ mvpp2_write(priv, MVPP2_CLS_FLOW_TBL2_REG, fe->data[2]);
+}
+
+/* Update classification lookup table register */
+static void mvpp2_cls_lookup_write(struct mvpp2 *priv,
+ struct mvpp2_cls_lookup_entry *le)
+{
+ u32 val;
+
+ val = (le->way << MVPP2_CLS_LKP_INDEX_WAY_OFFS) | le->lkpid;
+ mvpp2_write(priv, MVPP2_CLS_LKP_INDEX_REG, val);
+ mvpp2_write(priv, MVPP2_CLS_LKP_TBL_REG, le->data);
+}
+
+/* Classifier default initialization */
+static void mvpp2_cls_init(struct mvpp2 *priv)
+{
+ struct mvpp2_cls_lookup_entry le;
+ struct mvpp2_cls_flow_entry fe;
+ int index;
+
+ /* Enable classifier */
+ mvpp2_write(priv, MVPP2_CLS_MODE_REG, MVPP2_CLS_MODE_ACTIVE_MASK);
+
+ /* Clear classifier flow table */
+ memset(&fe.data, 0, MVPP2_CLS_FLOWS_TBL_DATA_WORDS);
+ for (index = 0; index < MVPP2_CLS_FLOWS_TBL_SIZE; index++) {
+ fe.index = index;
+ mvpp2_cls_flow_write(priv, &fe);
+ }
+
+ /* Clear classifier lookup table */
+ le.data = 0;
+ for (index = 0; index < MVPP2_CLS_LKP_TBL_SIZE; index++) {
+ le.lkpid = index;
+ le.way = 0;
+ mvpp2_cls_lookup_write(priv, &le);
+
+ le.way = 1;
+ mvpp2_cls_lookup_write(priv, &le);
+ }
+}
+
+static void mvpp2_cls_port_config(struct mvpp2_port *port)
+{
+ struct mvpp2_cls_lookup_entry le;
+ u32 val;
+
+ /* Set way for the port */
+ val = mvpp2_read(port->priv, MVPP2_CLS_PORT_WAY_REG);
+ val &= ~MVPP2_CLS_PORT_WAY_MASK(port->id);
+ mvpp2_write(port->priv, MVPP2_CLS_PORT_WAY_REG, val);
+
+ /* Pick the entry to be accessed in lookup ID decoding table
+ * according to the way and lkpid.
+ */
+ le.lkpid = port->id;
+ le.way = 0;
+ le.data = 0;
+
+ /* Set initial CPU queue for receiving packets */
+ le.data &= ~MVPP2_CLS_LKP_TBL_RXQ_MASK;
+ le.data |= port->first_rxq;
+
+ /* Disable classification engines */
+ le.data &= ~MVPP2_CLS_LKP_TBL_LOOKUP_EN_MASK;
+
+ /* Update lookup ID table entry */
+ mvpp2_cls_lookup_write(port->priv, &le);
+}
+
+/* Set CPU queue number for oversize packets */
+static void mvpp2_cls_oversize_rxq_set(struct mvpp2_port *port)
+{
+ u32 val;
+
+ mvpp2_write(port->priv, MVPP2_CLS_OVERSIZE_RXQ_LOW_REG(port->id),
+ port->first_rxq & MVPP2_CLS_OVERSIZE_RXQ_LOW_MASK);
+
+ mvpp2_write(port->priv, MVPP2_CLS_SWFWD_P2HQ_REG(port->id),
+ (port->first_rxq >> MVPP2_CLS_OVERSIZE_RXQ_LOW_BITS));
+
+ val = mvpp2_read(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG);
+ val |= MVPP2_CLS_SWFWD_PCTRL_MASK(port->id);
+ mvpp2_write(port->priv, MVPP2_CLS_SWFWD_PCTRL_REG, val);
+}
+
+/* Buffer Manager configuration routines */
+
+/* Create pool */
+static int mvpp2_bm_pool_create(struct udevice *dev,
+ struct mvpp2 *priv,
+ struct mvpp2_bm_pool *bm_pool, int size)
+{
+ u32 val;
+
+ bm_pool->virt_addr = buffer_loc.bm_pool[bm_pool->id];
+ bm_pool->phys_addr = (dma_addr_t)buffer_loc.bm_pool[bm_pool->id];
+ if (!bm_pool->virt_addr)
+ return -ENOMEM;
+
+ if (!IS_ALIGNED((u32)bm_pool->virt_addr, MVPP2_BM_POOL_PTR_ALIGN)) {
+ dev_err(&pdev->dev, "BM pool %d is not %d bytes aligned\n",
+ bm_pool->id, MVPP2_BM_POOL_PTR_ALIGN);
+ return -ENOMEM;
+ }
+
+ mvpp2_write(priv, MVPP2_BM_POOL_BASE_REG(bm_pool->id),
+ bm_pool->phys_addr);
+ mvpp2_write(priv, MVPP2_BM_POOL_SIZE_REG(bm_pool->id), size);
+
+ val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id));
+ val |= MVPP2_BM_START_MASK;
+ mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
+
+ bm_pool->type = MVPP2_BM_FREE;
+ bm_pool->size = size;
+ bm_pool->pkt_size = 0;
+ bm_pool->buf_num = 0;
+
+ return 0;
+}
+
+/* Set pool buffer size */
+static void mvpp2_bm_pool_bufsize_set(struct mvpp2 *priv,
+ struct mvpp2_bm_pool *bm_pool,
+ int buf_size)
+{
+ u32 val;
+
+ bm_pool->buf_size = buf_size;
+
+ val = ALIGN(buf_size, 1 << MVPP2_POOL_BUF_SIZE_OFFSET);
+ mvpp2_write(priv, MVPP2_POOL_BUF_SIZE_REG(bm_pool->id), val);
+}
+
+/* Free all buffers from the pool */
+static void mvpp2_bm_bufs_free(struct udevice *dev, struct mvpp2 *priv,
+ struct mvpp2_bm_pool *bm_pool)
+{
+ bm_pool->buf_num = 0;
+}
+
+/* Cleanup pool */
+static int mvpp2_bm_pool_destroy(struct udevice *dev,
+ struct mvpp2 *priv,
+ struct mvpp2_bm_pool *bm_pool)
+{
+ u32 val;
+
+ mvpp2_bm_bufs_free(dev, priv, bm_pool);
+ if (bm_pool->buf_num) {
+ dev_err(dev, "cannot free all buffers in pool %d\n", bm_pool->id);
+ return 0;
+ }
+
+ val = mvpp2_read(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id));
+ val |= MVPP2_BM_STOP_MASK;
+ mvpp2_write(priv, MVPP2_BM_POOL_CTRL_REG(bm_pool->id), val);
+
+ return 0;
+}
+
+static int mvpp2_bm_pools_init(struct udevice *dev,
+ struct mvpp2 *priv)
+{
+ int i, err, size;
+ struct mvpp2_bm_pool *bm_pool;
+
+ /* Create all pools with maximum size */
+ size = MVPP2_BM_POOL_SIZE_MAX;
+ for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
+ bm_pool = &priv->bm_pools[i];
+ bm_pool->id = i;
+ err = mvpp2_bm_pool_create(dev, priv, bm_pool, size);
+ if (err)
+ goto err_unroll_pools;
+ mvpp2_bm_pool_bufsize_set(priv, bm_pool, 0);
+ }
+ return 0;
+
+err_unroll_pools:
+ dev_err(&pdev->dev, "failed to create BM pool %d, size %d\n", i, size);
+ for (i = i - 1; i >= 0; i--)
+ mvpp2_bm_pool_destroy(dev, priv, &priv->bm_pools[i]);
+ return err;
+}
+
+static int mvpp2_bm_init(struct udevice *dev, struct mvpp2 *priv)
+{
+ int i, err;
+
+ for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
+ /* Mask BM all interrupts */
+ mvpp2_write(priv, MVPP2_BM_INTR_MASK_REG(i), 0);
+ /* Clear BM cause register */
+ mvpp2_write(priv, MVPP2_BM_INTR_CAUSE_REG(i), 0);
+ }
+
+ /* Allocate and initialize BM pools */
+ priv->bm_pools = devm_kcalloc(dev, MVPP2_BM_POOLS_NUM,
+ sizeof(struct mvpp2_bm_pool), GFP_KERNEL);
+ if (!priv->bm_pools)
+ return -ENOMEM;
+
+ err = mvpp2_bm_pools_init(dev, priv);
+ if (err < 0)
+ return err;
+ return 0;
+}
+
+/* Attach long pool to rxq */
+static void mvpp2_rxq_long_pool_set(struct mvpp2_port *port,
+ int lrxq, int long_pool)
+{
+ u32 val;
+ int prxq;
+
+ /* Get queue physical ID */
+ prxq = port->rxqs[lrxq]->id;
+
+ val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
+ val &= ~MVPP2_RXQ_POOL_LONG_MASK;
+ val |= ((long_pool << MVPP2_RXQ_POOL_LONG_OFFS) &
+ MVPP2_RXQ_POOL_LONG_MASK);
+
+ mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
+}
+
+/* Set pool number in a BM cookie */
+static inline u32 mvpp2_bm_cookie_pool_set(u32 cookie, int pool)
+{
+ u32 bm;
+
+ bm = cookie & ~(0xFF << MVPP2_BM_COOKIE_POOL_OFFS);
+ bm |= ((pool & 0xFF) << MVPP2_BM_COOKIE_POOL_OFFS);
+
+ return bm;
+}
+
+/* Get pool number from a BM cookie */
+static inline int mvpp2_bm_cookie_pool_get(u32 cookie)
+{
+ return (cookie >> MVPP2_BM_COOKIE_POOL_OFFS) & 0xFF;
+}
+
+/* Release buffer to BM */
+static inline void mvpp2_bm_pool_put(struct mvpp2_port *port, int pool,
+ u32 buf_phys_addr, u32 buf_virt_addr)
+{
+ mvpp2_write(port->priv, MVPP2_BM_VIRT_RLS_REG, buf_virt_addr);
+ mvpp2_write(port->priv, MVPP2_BM_PHY_RLS_REG(pool), buf_phys_addr);
+}
+
+/* Refill BM pool */
+static void mvpp2_pool_refill(struct mvpp2_port *port, u32 bm,
+ u32 phys_addr, u32 cookie)
+{
+ int pool = mvpp2_bm_cookie_pool_get(bm);
+
+ mvpp2_bm_pool_put(port, pool, phys_addr, cookie);
+}
+
+/* Allocate buffers for the pool */
+static int mvpp2_bm_bufs_add(struct mvpp2_port *port,
+ struct mvpp2_bm_pool *bm_pool, int buf_num)
+{
+ int i;
+ u32 bm;
+
+ if (buf_num < 0 ||
+ (buf_num + bm_pool->buf_num > bm_pool->size)) {
+ netdev_err(port->dev,
+ "cannot allocate %d buffers for pool %d\n",
+ buf_num, bm_pool->id);
+ return 0;
+ }
+
+ bm = mvpp2_bm_cookie_pool_set(0, bm_pool->id);
+ for (i = 0; i < buf_num; i++) {
+ mvpp2_pool_refill(port, bm, (u32)buffer_loc.rx_buffer[i],
+ (u32)buffer_loc.rx_buffer[i]);
+ }
+
+ /* Update BM driver with number of buffers added to pool */
+ bm_pool->buf_num += i;
+ bm_pool->in_use_thresh = bm_pool->buf_num / 4;
+
+ return i;
+}
+
+/* Notify the driver that BM pool is being used as specific type and return the
+ * pool pointer on success
+ */
+static struct mvpp2_bm_pool *
+mvpp2_bm_pool_use(struct mvpp2_port *port, int pool, enum mvpp2_bm_type type,
+ int pkt_size)
+{
+ struct mvpp2_bm_pool *new_pool = &port->priv->bm_pools[pool];
+ int num;
+
+ if (new_pool->type != MVPP2_BM_FREE && new_pool->type != type) {
+ netdev_err(port->dev, "mixing pool types is forbidden\n");
+ return NULL;
+ }
+
+ if (new_pool->type == MVPP2_BM_FREE)
+ new_pool->type = type;
+
+ /* Allocate buffers in case BM pool is used as long pool, but packet
+ * size doesn't match MTU or BM pool hasn't being used yet
+ */
+ if (((type == MVPP2_BM_SWF_LONG) && (pkt_size > new_pool->pkt_size)) ||
+ (new_pool->pkt_size == 0)) {
+ int pkts_num;
+
+ /* Set default buffer number or free all the buffers in case
+ * the pool is not empty
+ */
+ pkts_num = new_pool->buf_num;
+ if (pkts_num == 0)
+ pkts_num = type == MVPP2_BM_SWF_LONG ?
+ MVPP2_BM_LONG_BUF_NUM :
+ MVPP2_BM_SHORT_BUF_NUM;
+ else
+ mvpp2_bm_bufs_free(NULL,
+ port->priv, new_pool);
+
+ new_pool->pkt_size = pkt_size;
+
+ /* Allocate buffers for this pool */
+ num = mvpp2_bm_bufs_add(port, new_pool, pkts_num);
+ if (num != pkts_num) {
+ dev_err(dev, "pool %d: %d of %d allocated\n",
+ new_pool->id, num, pkts_num);
+ return NULL;
+ }
+ }
+
+ mvpp2_bm_pool_bufsize_set(port->priv, new_pool,
+ MVPP2_RX_BUF_SIZE(new_pool->pkt_size));
+
+ return new_pool;
+}
+
+/* Initialize pools for swf */
+static int mvpp2_swf_bm_pool_init(struct mvpp2_port *port)
+{
+ int rxq;
+
+ if (!port->pool_long) {
+ port->pool_long =
+ mvpp2_bm_pool_use(port, MVPP2_BM_SWF_LONG_POOL(port->id),
+ MVPP2_BM_SWF_LONG,
+ port->pkt_size);
+ if (!port->pool_long)
+ return -ENOMEM;
+
+ port->pool_long->port_map |= (1 << port->id);
+
+ for (rxq = 0; rxq < rxq_number; rxq++)
+ mvpp2_rxq_long_pool_set(port, rxq, port->pool_long->id);
+ }
+
+ return 0;
+}
+
+/* Port configuration routines */
+
+static void mvpp2_port_mii_set(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_2_REG);
+
+ switch (port->phy_interface) {
+ case PHY_INTERFACE_MODE_SGMII:
+ val |= MVPP2_GMAC_INBAND_AN_MASK;
+ break;
+ case PHY_INTERFACE_MODE_RGMII:
+ val |= MVPP2_GMAC_PORT_RGMII_MASK;
+ default:
+ val &= ~MVPP2_GMAC_PCS_ENABLE_MASK;
+ }
+
+ writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
+}
+
+static void mvpp2_port_fc_adv_enable(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+ val |= MVPP2_GMAC_FC_ADV_EN;
+ writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+}
+
+static void mvpp2_port_enable(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
+ val |= MVPP2_GMAC_PORT_EN_MASK;
+ val |= MVPP2_GMAC_MIB_CNTR_EN_MASK;
+ writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
+}
+
+static void mvpp2_port_disable(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
+ val &= ~(MVPP2_GMAC_PORT_EN_MASK);
+ writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
+}
+
+/* Set IEEE 802.3x Flow Control Xon Packet Transmission Mode */
+static void mvpp2_port_periodic_xon_disable(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_1_REG) &
+ ~MVPP2_GMAC_PERIODIC_XON_EN_MASK;
+ writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
+}
+
+/* Configure loopback port */
+static void mvpp2_port_loopback_set(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_1_REG);
+
+ if (port->speed == 1000)
+ val |= MVPP2_GMAC_GMII_LB_EN_MASK;
+ else
+ val &= ~MVPP2_GMAC_GMII_LB_EN_MASK;
+
+ if (port->phy_interface == PHY_INTERFACE_MODE_SGMII)
+ val |= MVPP2_GMAC_PCS_LB_EN_MASK;
+ else
+ val &= ~MVPP2_GMAC_PCS_LB_EN_MASK;
+
+ writel(val, port->base + MVPP2_GMAC_CTRL_1_REG);
+}
+
+static void mvpp2_port_reset(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_2_REG) &
+ ~MVPP2_GMAC_PORT_RESET_MASK;
+ writel(val, port->base + MVPP2_GMAC_CTRL_2_REG);
+
+ while (readl(port->base + MVPP2_GMAC_CTRL_2_REG) &
+ MVPP2_GMAC_PORT_RESET_MASK)
+ continue;
+}
+
+/* Change maximum receive size of the port */
+static inline void mvpp2_gmac_max_rx_size_set(struct mvpp2_port *port)
+{
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_CTRL_0_REG);
+ val &= ~MVPP2_GMAC_MAX_RX_SIZE_MASK;
+ val |= (((port->pkt_size - MVPP2_MH_SIZE) / 2) <<
+ MVPP2_GMAC_MAX_RX_SIZE_OFFS);
+ writel(val, port->base + MVPP2_GMAC_CTRL_0_REG);
+}
+
+/* Set defaults to the MVPP2 port */
+static void mvpp2_defaults_set(struct mvpp2_port *port)
+{
+ int tx_port_num, val, queue, ptxq, lrxq;
+
+ /* Configure port to loopback if needed */
+ if (port->flags & MVPP2_F_LOOPBACK)
+ mvpp2_port_loopback_set(port);
+
+ /* Update TX FIFO MIN Threshold */
+ val = readl(port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
+ val &= ~MVPP2_GMAC_TX_FIFO_MIN_TH_ALL_MASK;
+ /* Min. TX threshold must be less than minimal packet length */
+ val |= MVPP2_GMAC_TX_FIFO_MIN_TH_MASK(64 - 4 - 2);
+ writel(val, port->base + MVPP2_GMAC_PORT_FIFO_CFG_1_REG);
+
+ /* Disable Legacy WRR, Disable EJP, Release from reset */
+ tx_port_num = mvpp2_egress_port(port);
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG,
+ tx_port_num);
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_CMD_1_REG, 0);
+
+ /* Close bandwidth for all queues */
+ for (queue = 0; queue < MVPP2_MAX_TXQ; queue++) {
+ ptxq = mvpp2_txq_phys(port->id, queue);
+ mvpp2_write(port->priv,
+ MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(ptxq), 0);
+ }
+
+ /* Set refill period to 1 usec, refill tokens
+ * and bucket size to maximum
+ */
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_PERIOD_REG, 0xc8);
+ val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_REFILL_REG);
+ val &= ~MVPP2_TXP_REFILL_PERIOD_ALL_MASK;
+ val |= MVPP2_TXP_REFILL_PERIOD_MASK(1);
+ val |= MVPP2_TXP_REFILL_TOKENS_ALL_MASK;
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_REFILL_REG, val);
+ val = MVPP2_TXP_TOKEN_SIZE_MAX;
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val);
+
+ /* Set MaximumLowLatencyPacketSize value to 256 */
+ mvpp2_write(port->priv, MVPP2_RX_CTRL_REG(port->id),
+ MVPP2_RX_USE_PSEUDO_FOR_CSUM_MASK |
+ MVPP2_RX_LOW_LATENCY_PKT_SIZE(256));
+
+ /* Enable Rx cache snoop */
+ for (lrxq = 0; lrxq < rxq_number; lrxq++) {
+ queue = port->rxqs[lrxq]->id;
+ val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
+ val |= MVPP2_SNOOP_PKT_SIZE_MASK |
+ MVPP2_SNOOP_BUF_HDR_MASK;
+ mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
+ }
+}
+
+/* Enable/disable receiving packets */
+static void mvpp2_ingress_enable(struct mvpp2_port *port)
+{
+ u32 val;
+ int lrxq, queue;
+
+ for (lrxq = 0; lrxq < rxq_number; lrxq++) {
+ queue = port->rxqs[lrxq]->id;
+ val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
+ val &= ~MVPP2_RXQ_DISABLE_MASK;
+ mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
+ }
+}
+
+static void mvpp2_ingress_disable(struct mvpp2_port *port)
+{
+ u32 val;
+ int lrxq, queue;
+
+ for (lrxq = 0; lrxq < rxq_number; lrxq++) {
+ queue = port->rxqs[lrxq]->id;
+ val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(queue));
+ val |= MVPP2_RXQ_DISABLE_MASK;
+ mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(queue), val);
+ }
+}
+
+/* Enable transmit via physical egress queue
+ * - HW starts take descriptors from DRAM
+ */
+static void mvpp2_egress_enable(struct mvpp2_port *port)
+{
+ u32 qmap;
+ int queue;
+ int tx_port_num = mvpp2_egress_port(port);
+
+ /* Enable all initialized TXs. */
+ qmap = 0;
+ for (queue = 0; queue < txq_number; queue++) {
+ struct mvpp2_tx_queue *txq = port->txqs[queue];
+
+ if (txq->descs != NULL)
+ qmap |= (1 << queue);
+ }
+
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG, qmap);
+}
+
+/* Disable transmit via physical egress queue
+ * - HW doesn't take descriptors from DRAM
+ */
+static void mvpp2_egress_disable(struct mvpp2_port *port)
+{
+ u32 reg_data;
+ int delay;
+ int tx_port_num = mvpp2_egress_port(port);
+
+ /* Issue stop command for active channels only */
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
+ reg_data = (mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG)) &
+ MVPP2_TXP_SCHED_ENQ_MASK;
+ if (reg_data != 0)
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG,
+ (reg_data << MVPP2_TXP_SCHED_DISQ_OFFSET));
+
+ /* Wait for all Tx activity to terminate. */
+ delay = 0;
+ do {
+ if (delay >= MVPP2_TX_DISABLE_TIMEOUT_MSEC) {
+ netdev_warn(port->dev,
+ "Tx stop timed out, status=0x%08x\n",
+ reg_data);
+ break;
+ }
+ mdelay(1);
+ delay++;
+
+ /* Check port TX Command register that all
+ * Tx queues are stopped
+ */
+ reg_data = mvpp2_read(port->priv, MVPP2_TXP_SCHED_Q_CMD_REG);
+ } while (reg_data & MVPP2_TXP_SCHED_ENQ_MASK);
+}
+
+/* Rx descriptors helper methods */
+
+/* Get number of Rx descriptors occupied by received packets */
+static inline int
+mvpp2_rxq_received(struct mvpp2_port *port, int rxq_id)
+{
+ u32 val = mvpp2_read(port->priv, MVPP2_RXQ_STATUS_REG(rxq_id));
+
+ return val & MVPP2_RXQ_OCCUPIED_MASK;
+}
+
+/* Update Rx queue status with the number of occupied and available
+ * Rx descriptor slots.
+ */
+static inline void
+mvpp2_rxq_status_update(struct mvpp2_port *port, int rxq_id,
+ int used_count, int free_count)
+{
+ /* Decrement the number of used descriptors and increment count
+ * increment the number of free descriptors.
+ */
+ u32 val = used_count | (free_count << MVPP2_RXQ_NUM_NEW_OFFSET);
+
+ mvpp2_write(port->priv, MVPP2_RXQ_STATUS_UPDATE_REG(rxq_id), val);
+}
+
+/* Get pointer to next RX descriptor to be processed by SW */
+static inline struct mvpp2_rx_desc *
+mvpp2_rxq_next_desc_get(struct mvpp2_rx_queue *rxq)
+{
+ int rx_desc = rxq->next_desc_to_proc;
+
+ rxq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(rxq, rx_desc);
+ prefetch(rxq->descs + rxq->next_desc_to_proc);
+ return rxq->descs + rx_desc;
+}
+
+/* Set rx queue offset */
+static void mvpp2_rxq_offset_set(struct mvpp2_port *port,
+ int prxq, int offset)
+{
+ u32 val;
+
+ /* Convert offset from bytes to units of 32 bytes */
+ offset = offset >> 5;
+
+ val = mvpp2_read(port->priv, MVPP2_RXQ_CONFIG_REG(prxq));
+ val &= ~MVPP2_RXQ_PACKET_OFFSET_MASK;
+
+ /* Offset is in */
+ val |= ((offset << MVPP2_RXQ_PACKET_OFFSET_OFFS) &
+ MVPP2_RXQ_PACKET_OFFSET_MASK);
+
+ mvpp2_write(port->priv, MVPP2_RXQ_CONFIG_REG(prxq), val);
+}
+
+/* Obtain BM cookie information from descriptor */
+static u32 mvpp2_bm_cookie_build(struct mvpp2_rx_desc *rx_desc)
+{
+ int pool = (rx_desc->status & MVPP2_RXD_BM_POOL_ID_MASK) >>
+ MVPP2_RXD_BM_POOL_ID_OFFS;
+ int cpu = smp_processor_id();
+
+ return ((pool & 0xFF) << MVPP2_BM_COOKIE_POOL_OFFS) |
+ ((cpu & 0xFF) << MVPP2_BM_COOKIE_CPU_OFFS);
+}
+
+/* Tx descriptors helper methods */
+
+/* Get number of Tx descriptors waiting to be transmitted by HW */
+static int mvpp2_txq_pend_desc_num_get(struct mvpp2_port *port,
+ struct mvpp2_tx_queue *txq)
+{
+ u32 val;
+
+ mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
+ val = mvpp2_read(port->priv, MVPP2_TXQ_PENDING_REG);
+
+ return val & MVPP2_TXQ_PENDING_MASK;
+}
+
+/* Get pointer to next Tx descriptor to be processed (send) by HW */
+static struct mvpp2_tx_desc *
+mvpp2_txq_next_desc_get(struct mvpp2_tx_queue *txq)
+{
+ int tx_desc = txq->next_desc_to_proc;
+
+ txq->next_desc_to_proc = MVPP2_QUEUE_NEXT_DESC(txq, tx_desc);
+ return txq->descs + tx_desc;
+}
+
+/* Update HW with number of aggregated Tx descriptors to be sent */
+static void mvpp2_aggr_txq_pend_desc_add(struct mvpp2_port *port, int pending)
+{
+ /* aggregated access - relevant TXQ number is written in TX desc */
+ mvpp2_write(port->priv, MVPP2_AGGR_TXQ_UPDATE_REG, pending);
+}
+
+/* Get number of sent descriptors and decrement counter.
+ * The number of sent descriptors is returned.
+ * Per-CPU access
+ */
+static inline int mvpp2_txq_sent_desc_proc(struct mvpp2_port *port,
+ struct mvpp2_tx_queue *txq)
+{
+ u32 val;
+
+ /* Reading status reg resets transmitted descriptor counter */
+ val = mvpp2_read(port->priv, MVPP2_TXQ_SENT_REG(txq->id));
+
+ return (val & MVPP2_TRANSMITTED_COUNT_MASK) >>
+ MVPP2_TRANSMITTED_COUNT_OFFSET;
+}
+
+static void mvpp2_txq_sent_counter_clear(void *arg)
+{
+ struct mvpp2_port *port = arg;
+ int queue;
+
+ for (queue = 0; queue < txq_number; queue++) {
+ int id = port->txqs[queue]->id;
+
+ mvpp2_read(port->priv, MVPP2_TXQ_SENT_REG(id));
+ }
+}
+
+/* Set max sizes for Tx queues */
+static void mvpp2_txp_max_tx_size_set(struct mvpp2_port *port)
+{
+ u32 val, size, mtu;
+ int txq, tx_port_num;
+
+ mtu = port->pkt_size * 8;
+ if (mtu > MVPP2_TXP_MTU_MAX)
+ mtu = MVPP2_TXP_MTU_MAX;
+
+ /* WA for wrong Token bucket update: Set MTU value = 3*real MTU value */
+ mtu = 3 * mtu;
+
+ /* Indirect access to registers */
+ tx_port_num = mvpp2_egress_port(port);
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
+
+ /* Set MTU */
+ val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_MTU_REG);
+ val &= ~MVPP2_TXP_MTU_MAX;
+ val |= mtu;
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_MTU_REG, val);
+
+ /* TXP token size and all TXQs token size must be larger that MTU */
+ val = mvpp2_read(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG);
+ size = val & MVPP2_TXP_TOKEN_SIZE_MAX;
+ if (size < mtu) {
+ size = mtu;
+ val &= ~MVPP2_TXP_TOKEN_SIZE_MAX;
+ val |= size;
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_TOKEN_SIZE_REG, val);
+ }
+
+ for (txq = 0; txq < txq_number; txq++) {
+ val = mvpp2_read(port->priv,
+ MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq));
+ size = val & MVPP2_TXQ_TOKEN_SIZE_MAX;
+
+ if (size < mtu) {
+ size = mtu;
+ val &= ~MVPP2_TXQ_TOKEN_SIZE_MAX;
+ val |= size;
+ mvpp2_write(port->priv,
+ MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq),
+ val);
+ }
+ }
+}
+
+/* Free Tx queue skbuffs */
+static void mvpp2_txq_bufs_free(struct mvpp2_port *port,
+ struct mvpp2_tx_queue *txq,
+ struct mvpp2_txq_pcpu *txq_pcpu, int num)
+{
+ int i;
+
+ for (i = 0; i < num; i++)
+ mvpp2_txq_inc_get(txq_pcpu);
+}
+
+static inline struct mvpp2_rx_queue *mvpp2_get_rx_queue(struct mvpp2_port *port,
+ u32 cause)
+{
+ int queue = fls(cause) - 1;
+
+ return port->rxqs[queue];
+}
+
+static inline struct mvpp2_tx_queue *mvpp2_get_tx_queue(struct mvpp2_port *port,
+ u32 cause)
+{
+ int queue = fls(cause) - 1;
+
+ return port->txqs[queue];
+}
+
+/* Rx/Tx queue initialization/cleanup methods */
+
+/* Allocate and initialize descriptors for aggr TXQ */
+static int mvpp2_aggr_txq_init(struct udevice *dev,
+ struct mvpp2_tx_queue *aggr_txq,
+ int desc_num, int cpu,
+ struct mvpp2 *priv)
+{
+ /* Allocate memory for TX descriptors */
+ aggr_txq->descs = buffer_loc.aggr_tx_descs;
+ aggr_txq->descs_phys = (dma_addr_t)buffer_loc.aggr_tx_descs;
+ if (!aggr_txq->descs)
+ return -ENOMEM;
+
+ /* Make sure descriptor address is cache line size aligned */
+ BUG_ON(aggr_txq->descs !=
+ PTR_ALIGN(aggr_txq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
+
+ aggr_txq->last_desc = aggr_txq->size - 1;
+
+ /* Aggr TXQ no reset WA */
+ aggr_txq->next_desc_to_proc = mvpp2_read(priv,
+ MVPP2_AGGR_TXQ_INDEX_REG(cpu));
+
+ /* Set Tx descriptors queue starting address */
+ /* indirect access */
+ mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_ADDR_REG(cpu),
+ aggr_txq->descs_phys);
+ mvpp2_write(priv, MVPP2_AGGR_TXQ_DESC_SIZE_REG(cpu), desc_num);
+
+ return 0;
+}
+
+/* Create a specified Rx queue */
+static int mvpp2_rxq_init(struct mvpp2_port *port,
+ struct mvpp2_rx_queue *rxq)
+
+{
+ rxq->size = port->rx_ring_size;
+
+ /* Allocate memory for RX descriptors */
+ rxq->descs = buffer_loc.rx_descs;
+ rxq->descs_phys = (dma_addr_t)buffer_loc.rx_descs;
+ if (!rxq->descs)
+ return -ENOMEM;
+
+ BUG_ON(rxq->descs !=
+ PTR_ALIGN(rxq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
+
+ rxq->last_desc = rxq->size - 1;
+
+ /* Zero occupied and non-occupied counters - direct access */
+ mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0);
+
+ /* Set Rx descriptors queue starting address - indirect access */
+ mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
+ mvpp2_write(port->priv, MVPP2_RXQ_DESC_ADDR_REG, rxq->descs_phys);
+ mvpp2_write(port->priv, MVPP2_RXQ_DESC_SIZE_REG, rxq->size);
+ mvpp2_write(port->priv, MVPP2_RXQ_INDEX_REG, 0);
+
+ /* Set Offset */
+ mvpp2_rxq_offset_set(port, rxq->id, NET_SKB_PAD);
+
+ /* Add number of descriptors ready for receiving packets */
+ mvpp2_rxq_status_update(port, rxq->id, 0, rxq->size);
+
+ return 0;
+}
+
+/* Push packets received by the RXQ to BM pool */
+static void mvpp2_rxq_drop_pkts(struct mvpp2_port *port,
+ struct mvpp2_rx_queue *rxq)
+{
+ int rx_received, i;
+
+ rx_received = mvpp2_rxq_received(port, rxq->id);
+ if (!rx_received)
+ return;
+
+ for (i = 0; i < rx_received; i++) {
+ struct mvpp2_rx_desc *rx_desc = mvpp2_rxq_next_desc_get(rxq);
+ u32 bm = mvpp2_bm_cookie_build(rx_desc);
+
+ mvpp2_pool_refill(port, bm, rx_desc->buf_phys_addr,
+ rx_desc->buf_cookie);
+ }
+ mvpp2_rxq_status_update(port, rxq->id, rx_received, rx_received);
+}
+
+/* Cleanup Rx queue */
+static void mvpp2_rxq_deinit(struct mvpp2_port *port,
+ struct mvpp2_rx_queue *rxq)
+{
+ mvpp2_rxq_drop_pkts(port, rxq);
+
+ rxq->descs = NULL;
+ rxq->last_desc = 0;
+ rxq->next_desc_to_proc = 0;
+ rxq->descs_phys = 0;
+
+ /* Clear Rx descriptors queue starting address and size;
+ * free descriptor number
+ */
+ mvpp2_write(port->priv, MVPP2_RXQ_STATUS_REG(rxq->id), 0);
+ mvpp2_write(port->priv, MVPP2_RXQ_NUM_REG, rxq->id);
+ mvpp2_write(port->priv, MVPP2_RXQ_DESC_ADDR_REG, 0);
+ mvpp2_write(port->priv, MVPP2_RXQ_DESC_SIZE_REG, 0);
+}
+
+/* Create and initialize a Tx queue */
+static int mvpp2_txq_init(struct mvpp2_port *port,
+ struct mvpp2_tx_queue *txq)
+{
+ u32 val;
+ int cpu, desc, desc_per_txq, tx_port_num;
+ struct mvpp2_txq_pcpu *txq_pcpu;
+
+ txq->size = port->tx_ring_size;
+
+ /* Allocate memory for Tx descriptors */
+ txq->descs = buffer_loc.tx_descs;
+ txq->descs_phys = (dma_addr_t)buffer_loc.tx_descs;
+ if (!txq->descs)
+ return -ENOMEM;
+
+ /* Make sure descriptor address is cache line size aligned */
+ BUG_ON(txq->descs !=
+ PTR_ALIGN(txq->descs, MVPP2_CPU_D_CACHE_LINE_SIZE));
+
+ txq->last_desc = txq->size - 1;
+
+ /* Set Tx descriptors queue starting address - indirect access */
+ mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
+ mvpp2_write(port->priv, MVPP2_TXQ_DESC_ADDR_REG, txq->descs_phys);
+ mvpp2_write(port->priv, MVPP2_TXQ_DESC_SIZE_REG, txq->size &
+ MVPP2_TXQ_DESC_SIZE_MASK);
+ mvpp2_write(port->priv, MVPP2_TXQ_INDEX_REG, 0);
+ mvpp2_write(port->priv, MVPP2_TXQ_RSVD_CLR_REG,
+ txq->id << MVPP2_TXQ_RSVD_CLR_OFFSET);
+ val = mvpp2_read(port->priv, MVPP2_TXQ_PENDING_REG);
+ val &= ~MVPP2_TXQ_PENDING_MASK;
+ mvpp2_write(port->priv, MVPP2_TXQ_PENDING_REG, val);
+
+ /* Calculate base address in prefetch buffer. We reserve 16 descriptors
+ * for each existing TXQ.
+ * TCONTS for PON port must be continuous from 0 to MVPP2_MAX_TCONT
+ * GBE ports assumed to be continious from 0 to MVPP2_MAX_PORTS
+ */
+ desc_per_txq = 16;
+ desc = (port->id * MVPP2_MAX_TXQ * desc_per_txq) +
+ (txq->log_id * desc_per_txq);
+
+ mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG,
+ MVPP2_PREF_BUF_PTR(desc) | MVPP2_PREF_BUF_SIZE_16 |
+ MVPP2_PREF_BUF_THRESH(desc_per_txq/2));
+
+ /* WRR / EJP configuration - indirect access */
+ tx_port_num = mvpp2_egress_port(port);
+ mvpp2_write(port->priv, MVPP2_TXP_SCHED_PORT_INDEX_REG, tx_port_num);
+
+ val = mvpp2_read(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id));
+ val &= ~MVPP2_TXQ_REFILL_PERIOD_ALL_MASK;
+ val |= MVPP2_TXQ_REFILL_PERIOD_MASK(1);
+ val |= MVPP2_TXQ_REFILL_TOKENS_ALL_MASK;
+ mvpp2_write(port->priv, MVPP2_TXQ_SCHED_REFILL_REG(txq->log_id), val);
+
+ val = MVPP2_TXQ_TOKEN_SIZE_MAX;
+ mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_SIZE_REG(txq->log_id),
+ val);
+
+ for_each_present_cpu(cpu) {
+ txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
+ txq_pcpu->size = txq->size;
+ }
+
+ return 0;
+}
+
+/* Free allocated TXQ resources */
+static void mvpp2_txq_deinit(struct mvpp2_port *port,
+ struct mvpp2_tx_queue *txq)
+{
+ txq->descs = NULL;
+ txq->last_desc = 0;
+ txq->next_desc_to_proc = 0;
+ txq->descs_phys = 0;
+
+ /* Set minimum bandwidth for disabled TXQs */
+ mvpp2_write(port->priv, MVPP2_TXQ_SCHED_TOKEN_CNTR_REG(txq->id), 0);
+
+ /* Set Tx descriptors queue starting address and size */
+ mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
+ mvpp2_write(port->priv, MVPP2_TXQ_DESC_ADDR_REG, 0);
+ mvpp2_write(port->priv, MVPP2_TXQ_DESC_SIZE_REG, 0);
+}
+
+/* Cleanup Tx ports */
+static void mvpp2_txq_clean(struct mvpp2_port *port, struct mvpp2_tx_queue *txq)
+{
+ struct mvpp2_txq_pcpu *txq_pcpu;
+ int delay, pending, cpu;
+ u32 val;
+
+ mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
+ val = mvpp2_read(port->priv, MVPP2_TXQ_PREF_BUF_REG);
+ val |= MVPP2_TXQ_DRAIN_EN_MASK;
+ mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
+
+ /* The napi queue has been stopped so wait for all packets
+ * to be transmitted.
+ */
+ delay = 0;
+ do {
+ if (delay >= MVPP2_TX_PENDING_TIMEOUT_MSEC) {
+ netdev_warn(port->dev,
+ "port %d: cleaning queue %d timed out\n",
+ port->id, txq->log_id);
+ break;
+ }
+ mdelay(1);
+ delay++;
+
+ pending = mvpp2_txq_pend_desc_num_get(port, txq);
+ } while (pending);
+
+ val &= ~MVPP2_TXQ_DRAIN_EN_MASK;
+ mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
+
+ for_each_present_cpu(cpu) {
+ txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
+
+ /* Release all packets */
+ mvpp2_txq_bufs_free(port, txq, txq_pcpu, txq_pcpu->count);
+
+ /* Reset queue */
+ txq_pcpu->count = 0;
+ txq_pcpu->txq_put_index = 0;
+ txq_pcpu->txq_get_index = 0;
+ }
+}
+
+/* Cleanup all Tx queues */
+static void mvpp2_cleanup_txqs(struct mvpp2_port *port)
+{
+ struct mvpp2_tx_queue *txq;
+ int queue;
+ u32 val;
+
+ val = mvpp2_read(port->priv, MVPP2_TX_PORT_FLUSH_REG);
+
+ /* Reset Tx ports and delete Tx queues */
+ val |= MVPP2_TX_PORT_FLUSH_MASK(port->id);
+ mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val);
+
+ for (queue = 0; queue < txq_number; queue++) {
+ txq = port->txqs[queue];
+ mvpp2_txq_clean(port, txq);
+ mvpp2_txq_deinit(port, txq);
+ }
+
+ mvpp2_txq_sent_counter_clear(port);
+
+ val &= ~MVPP2_TX_PORT_FLUSH_MASK(port->id);
+ mvpp2_write(port->priv, MVPP2_TX_PORT_FLUSH_REG, val);
+}
+
+/* Cleanup all Rx queues */
+static void mvpp2_cleanup_rxqs(struct mvpp2_port *port)
+{
+ int queue;
+
+ for (queue = 0; queue < rxq_number; queue++)
+ mvpp2_rxq_deinit(port, port->rxqs[queue]);
+}
+
+/* Init all Rx queues for port */
+static int mvpp2_setup_rxqs(struct mvpp2_port *port)
+{
+ int queue, err;
+
+ for (queue = 0; queue < rxq_number; queue++) {
+ err = mvpp2_rxq_init(port, port->rxqs[queue]);
+ if (err)
+ goto err_cleanup;
+ }
+ return 0;
+
+err_cleanup:
+ mvpp2_cleanup_rxqs(port);
+ return err;
+}
+
+/* Init all tx queues for port */
+static int mvpp2_setup_txqs(struct mvpp2_port *port)
+{
+ struct mvpp2_tx_queue *txq;
+ int queue, err;
+
+ for (queue = 0; queue < txq_number; queue++) {
+ txq = port->txqs[queue];
+ err = mvpp2_txq_init(port, txq);
+ if (err)
+ goto err_cleanup;
+ }
+
+ mvpp2_txq_sent_counter_clear(port);
+ return 0;
+
+err_cleanup:
+ mvpp2_cleanup_txqs(port);
+ return err;
+}
+
+/* Adjust link */
+static void mvpp2_link_event(struct mvpp2_port *port)
+{
+ struct phy_device *phydev = port->phy_dev;
+ int status_change = 0;
+ u32 val;
+
+ if (phydev->link) {
+ if ((port->speed != phydev->speed) ||
+ (port->duplex != phydev->duplex)) {
+ u32 val;
+
+ val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+ val &= ~(MVPP2_GMAC_CONFIG_MII_SPEED |
+ MVPP2_GMAC_CONFIG_GMII_SPEED |
+ MVPP2_GMAC_CONFIG_FULL_DUPLEX |
+ MVPP2_GMAC_AN_SPEED_EN |
+ MVPP2_GMAC_AN_DUPLEX_EN);
+
+ if (phydev->duplex)
+ val |= MVPP2_GMAC_CONFIG_FULL_DUPLEX;
+
+ if (phydev->speed == SPEED_1000)
+ val |= MVPP2_GMAC_CONFIG_GMII_SPEED;
+ else if (phydev->speed == SPEED_100)
+ val |= MVPP2_GMAC_CONFIG_MII_SPEED;
+
+ writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+
+ port->duplex = phydev->duplex;
+ port->speed = phydev->speed;
+ }
+ }
+
+ if (phydev->link != port->link) {
+ if (!phydev->link) {
+ port->duplex = -1;
+ port->speed = 0;
+ }
+
+ port->link = phydev->link;
+ status_change = 1;
+ }
+
+ if (status_change) {
+ if (phydev->link) {
+ val = readl(port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+ val |= (MVPP2_GMAC_FORCE_LINK_PASS |
+ MVPP2_GMAC_FORCE_LINK_DOWN);
+ writel(val, port->base + MVPP2_GMAC_AUTONEG_CONFIG);
+ mvpp2_egress_enable(port);
+ mvpp2_ingress_enable(port);
+ } else {
+ mvpp2_ingress_disable(port);
+ mvpp2_egress_disable(port);
+ }
+ }
+}
+
+/* Main RX/TX processing routines */
+
+/* Display more error info */
+static void mvpp2_rx_error(struct mvpp2_port *port,
+ struct mvpp2_rx_desc *rx_desc)
+{
+ u32 status = rx_desc->status;
+
+ switch (status & MVPP2_RXD_ERR_CODE_MASK) {
+ case MVPP2_RXD_ERR_CRC:
+ netdev_err(port->dev, "bad rx status %08x (crc error), size=%d\n",
+ status, rx_desc->data_size);
+ break;
+ case MVPP2_RXD_ERR_OVERRUN:
+ netdev_err(port->dev, "bad rx status %08x (overrun error), size=%d\n",
+ status, rx_desc->data_size);
+ break;
+ case MVPP2_RXD_ERR_RESOURCE:
+ netdev_err(port->dev, "bad rx status %08x (resource error), size=%d\n",
+ status, rx_desc->data_size);
+ break;
+ }
+}
+
+/* Reuse skb if possible, or allocate a new skb and add it to BM pool */
+static int mvpp2_rx_refill(struct mvpp2_port *port,
+ struct mvpp2_bm_pool *bm_pool,
+ u32 bm, u32 phys_addr)
+{
+ mvpp2_pool_refill(port, bm, phys_addr, phys_addr);
+ return 0;
+}
+
+/* Set hw internals when starting port */
+static void mvpp2_start_dev(struct mvpp2_port *port)
+{
+ mvpp2_gmac_max_rx_size_set(port);
+ mvpp2_txp_max_tx_size_set(port);
+
+ mvpp2_port_enable(port);
+}
+
+/* Set hw internals when stopping port */
+static void mvpp2_stop_dev(struct mvpp2_port *port)
+{
+ /* Stop new packets from arriving to RXQs */
+ mvpp2_ingress_disable(port);
+
+ mvpp2_egress_disable(port);
+ mvpp2_port_disable(port);
+}
+
+static int mvpp2_phy_connect(struct udevice *dev, struct mvpp2_port *port)
+{
+ struct phy_device *phy_dev;
+
+ if (!port->init || port->link == 0) {
+ phy_dev = phy_connect(port->priv->bus, port->phyaddr, dev,
+ port->phy_interface);
+ port->phy_dev = phy_dev;
+ if (!phy_dev) {
+ netdev_err(port->dev, "cannot connect to phy\n");
+ return -ENODEV;
+ }
+ phy_dev->supported &= PHY_GBIT_FEATURES;
+ phy_dev->advertising = phy_dev->supported;
+
+ port->phy_dev = phy_dev;
+ port->link = 0;
+ port->duplex = 0;
+ port->speed = 0;
+
+ phy_config(phy_dev);
+ phy_startup(phy_dev);
+ if (!phy_dev->link) {
+ printf("%s: No link\n", phy_dev->dev->name);
+ return -1;
+ }
+
+ port->init = 1;
+ } else {
+ mvpp2_egress_enable(port);
+ mvpp2_ingress_enable(port);
+ }
+
+ return 0;
+}
+
+static int mvpp2_open(struct udevice *dev, struct mvpp2_port *port)
+{
+ unsigned char mac_bcast[ETH_ALEN] = {
+ 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
+ int err;
+
+ err = mvpp2_prs_mac_da_accept(port->priv, port->id, mac_bcast, true);
+ if (err) {
+ netdev_err(dev, "mvpp2_prs_mac_da_accept BC failed\n");
+ return err;
+ }
+ err = mvpp2_prs_mac_da_accept(port->priv, port->id,
+ port->dev_addr, true);
+ if (err) {
+ netdev_err(dev, "mvpp2_prs_mac_da_accept MC failed\n");
+ return err;
+ }
+ err = mvpp2_prs_def_flow(port);
+ if (err) {
+ netdev_err(dev, "mvpp2_prs_def_flow failed\n");
+ return err;
+ }
+
+ /* Allocate the Rx/Tx queues */
+ err = mvpp2_setup_rxqs(port);
+ if (err) {
+ netdev_err(port->dev, "cannot allocate Rx queues\n");
+ return err;
+ }
+
+ err = mvpp2_setup_txqs(port);
+ if (err) {
+ netdev_err(port->dev, "cannot allocate Tx queues\n");
+ return err;
+ }
+
+ err = mvpp2_phy_connect(dev, port);
+ if (err < 0)
+ return err;
+
+ mvpp2_link_event(port);
+
+ mvpp2_start_dev(port);
+
+ return 0;
+}
+
+/* No Device ops here in U-Boot */
+
+/* Driver initialization */
+
+static void mvpp2_port_power_up(struct mvpp2_port *port)
+{
+ mvpp2_port_mii_set(port);
+ mvpp2_port_periodic_xon_disable(port);
+ mvpp2_port_fc_adv_enable(port);
+ mvpp2_port_reset(port);
+}
+
+/* Initialize port HW */
+static int mvpp2_port_init(struct udevice *dev, struct mvpp2_port *port)
+{
+ struct mvpp2 *priv = port->priv;
+ struct mvpp2_txq_pcpu *txq_pcpu;
+ int queue, cpu, err;
+
+ if (port->first_rxq + rxq_number > MVPP2_RXQ_TOTAL_NUM)
+ return -EINVAL;
+
+ /* Disable port */
+ mvpp2_egress_disable(port);
+ mvpp2_port_disable(port);
+
+ port->txqs = devm_kcalloc(dev, txq_number, sizeof(*port->txqs),
+ GFP_KERNEL);
+ if (!port->txqs)
+ return -ENOMEM;
+
+ /* Associate physical Tx queues to this port and initialize.
+ * The mapping is predefined.
+ */
+ for (queue = 0; queue < txq_number; queue++) {
+ int queue_phy_id = mvpp2_txq_phys(port->id, queue);
+ struct mvpp2_tx_queue *txq;
+
+ txq = devm_kzalloc(dev, sizeof(*txq), GFP_KERNEL);
+ if (!txq)
+ return -ENOMEM;
+
+ txq->pcpu = devm_kzalloc(dev, sizeof(struct mvpp2_txq_pcpu),
+ GFP_KERNEL);
+ if (!txq->pcpu)
+ return -ENOMEM;
+
+ txq->id = queue_phy_id;
+ txq->log_id = queue;
+ txq->done_pkts_coal = MVPP2_TXDONE_COAL_PKTS_THRESH;
+ for_each_present_cpu(cpu) {
+ txq_pcpu = per_cpu_ptr(txq->pcpu, cpu);
+ txq_pcpu->cpu = cpu;
+ }
+
+ port->txqs[queue] = txq;
+ }
+
+ port->rxqs = devm_kcalloc(dev, rxq_number, sizeof(*port->rxqs),
+ GFP_KERNEL);
+ if (!port->rxqs)
+ return -ENOMEM;
+
+ /* Allocate and initialize Rx queue for this port */
+ for (queue = 0; queue < rxq_number; queue++) {
+ struct mvpp2_rx_queue *rxq;
+
+ /* Map physical Rx queue to port's logical Rx queue */
+ rxq = devm_kzalloc(dev, sizeof(*rxq), GFP_KERNEL);
+ if (!rxq)
+ return -ENOMEM;
+ /* Map this Rx queue to a physical queue */
+ rxq->id = port->first_rxq + queue;
+ rxq->port = port->id;
+ rxq->logic_rxq = queue;
+
+ port->rxqs[queue] = rxq;
+ }
+
+ /* Configure Rx queue group interrupt for this port */
+ mvpp2_write(priv, MVPP2_ISR_RXQ_GROUP_REG(port->id), CONFIG_MV_ETH_RXQ);
+
+ /* Create Rx descriptor rings */
+ for (queue = 0; queue < rxq_number; queue++) {
+ struct mvpp2_rx_queue *rxq = port->rxqs[queue];
+
+ rxq->size = port->rx_ring_size;
+ rxq->pkts_coal = MVPP2_RX_COAL_PKTS;
+ rxq->time_coal = MVPP2_RX_COAL_USEC;
+ }
+
+ mvpp2_ingress_disable(port);
+
+ /* Port default configuration */
+ mvpp2_defaults_set(port);
+
+ /* Port's classifier configuration */
+ mvpp2_cls_oversize_rxq_set(port);
+ mvpp2_cls_port_config(port);
+
+ /* Provide an initial Rx packet size */
+ port->pkt_size = MVPP2_RX_PKT_SIZE(PKTSIZE_ALIGN);
+
+ /* Initialize pools for swf */
+ err = mvpp2_swf_bm_pool_init(port);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+/* Ports initialization */
+static int mvpp2_port_probe(struct udevice *dev,
+ struct mvpp2_port *port,
+ int port_node,
+ struct mvpp2 *priv,
+ int *next_first_rxq)
+{
+ int phy_node;
+ u32 id;
+ u32 phyaddr;
+ const char *phy_mode_str;
+ int phy_mode = -1;
+ int priv_common_regs_num = 2;
+ int err;
+
+ phy_node = fdtdec_lookup_phandle(gd->fdt_blob, port_node, "phy");
+ if (phy_node < 0) {
+ dev_err(&pdev->dev, "missing phy\n");
+ return -ENODEV;
+ }
+
+ phy_mode_str = fdt_getprop(gd->fdt_blob, port_node, "phy-mode", NULL);
+ if (phy_mode_str)
+ phy_mode = phy_get_interface_by_name(phy_mode_str);
+ if (phy_mode == -1) {
+ dev_err(&pdev->dev, "incorrect phy mode\n");
+ return -EINVAL;
+ }
+
+ id = fdtdec_get_int(gd->fdt_blob, port_node, "port-id", -1);
+ if (id == -1) {
+ dev_err(&pdev->dev, "missing port-id value\n");
+ return -EINVAL;
+ }
+
+ phyaddr = fdtdec_get_int(gd->fdt_blob, phy_node, "reg", 0);
+
+ port->priv = priv;
+ port->id = id;
+ port->first_rxq = *next_first_rxq;
+ port->phy_node = phy_node;
+ port->phy_interface = phy_mode;
+ port->phyaddr = phyaddr;
+
+ port->base = (void __iomem *)dev_get_addr_index(dev->parent,
+ priv_common_regs_num
+ + id);
+ if (IS_ERR(port->base))
+ return PTR_ERR(port->base);
+
+ port->tx_ring_size = MVPP2_MAX_TXD;
+ port->rx_ring_size = MVPP2_MAX_RXD;
+
+ err = mvpp2_port_init(dev, port);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to init port %d\n", id);
+ return err;
+ }
+ mvpp2_port_power_up(port);
+
+ /* Increment the first Rx queue number to be used by the next port */
+ *next_first_rxq += CONFIG_MV_ETH_RXQ;
+ priv->port_list[id] = port;
+ return 0;
+}
+
+/* Initialize decoding windows */
+static void mvpp2_conf_mbus_windows(const struct mbus_dram_target_info *dram,
+ struct mvpp2 *priv)
+{
+ u32 win_enable;
+ int i;
+
+ for (i = 0; i < 6; i++) {
+ mvpp2_write(priv, MVPP2_WIN_BASE(i), 0);
+ mvpp2_write(priv, MVPP2_WIN_SIZE(i), 0);
+
+ if (i < 4)
+ mvpp2_write(priv, MVPP2_WIN_REMAP(i), 0);
+ }
+
+ win_enable = 0;
+
+ for (i = 0; i < dram->num_cs; i++) {
+ const struct mbus_dram_window *cs = dram->cs + i;
+
+ mvpp2_write(priv, MVPP2_WIN_BASE(i),
+ (cs->base & 0xffff0000) | (cs->mbus_attr << 8) |
+ dram->mbus_dram_target_id);
+
+ mvpp2_write(priv, MVPP2_WIN_SIZE(i),
+ (cs->size - 1) & 0xffff0000);
+
+ win_enable |= (1 << i);
+ }
+
+ mvpp2_write(priv, MVPP2_BASE_ADDR_ENABLE, win_enable);
+}
+
+/* Initialize Rx FIFO's */
+static void mvpp2_rx_fifo_init(struct mvpp2 *priv)
+{
+ int port;
+
+ for (port = 0; port < MVPP2_MAX_PORTS; port++) {
+ mvpp2_write(priv, MVPP2_RX_DATA_FIFO_SIZE_REG(port),
+ MVPP2_RX_FIFO_PORT_DATA_SIZE);
+ mvpp2_write(priv, MVPP2_RX_ATTR_FIFO_SIZE_REG(port),
+ MVPP2_RX_FIFO_PORT_ATTR_SIZE);
+ }
+
+ mvpp2_write(priv, MVPP2_RX_MIN_PKT_SIZE_REG,
+ MVPP2_RX_FIFO_PORT_MIN_PKT);
+ mvpp2_write(priv, MVPP2_RX_FIFO_INIT_REG, 0x1);
+}
+
+/* Initialize network controller common part HW */
+static int mvpp2_init(struct udevice *dev, struct mvpp2 *priv)
+{
+ const struct mbus_dram_target_info *dram_target_info;
+ int err, i;
+ u32 val;
+
+ /* Checks for hardware constraints (U-Boot uses only one rxq) */
+ if ((rxq_number > MVPP2_MAX_RXQ) || (txq_number > MVPP2_MAX_TXQ)) {
+ dev_err(&pdev->dev, "invalid queue size parameter\n");
+ return -EINVAL;
+ }
+
+ /* MBUS windows configuration */
+ dram_target_info = mvebu_mbus_dram_info();
+ if (dram_target_info)
+ mvpp2_conf_mbus_windows(dram_target_info, priv);
+
+ /* Disable HW PHY polling */
+ val = readl(priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
+ val |= MVPP2_PHY_AN_STOP_SMI0_MASK;
+ writel(val, priv->lms_base + MVPP2_PHY_AN_CFG0_REG);
+
+ /* Allocate and initialize aggregated TXQs */
+ priv->aggr_txqs = devm_kcalloc(dev, num_present_cpus(),
+ sizeof(struct mvpp2_tx_queue),
+ GFP_KERNEL);
+ if (!priv->aggr_txqs)
+ return -ENOMEM;
+
+ for_each_present_cpu(i) {
+ priv->aggr_txqs[i].id = i;
+ priv->aggr_txqs[i].size = MVPP2_AGGR_TXQ_SIZE;
+ err = mvpp2_aggr_txq_init(dev, &priv->aggr_txqs[i],
+ MVPP2_AGGR_TXQ_SIZE, i, priv);
+ if (err < 0)
+ return err;
+ }
+
+ /* Rx Fifo Init */
+ mvpp2_rx_fifo_init(priv);
+
+ /* Reset Rx queue group interrupt configuration */
+ for (i = 0; i < MVPP2_MAX_PORTS; i++)
+ mvpp2_write(priv, MVPP2_ISR_RXQ_GROUP_REG(i),
+ CONFIG_MV_ETH_RXQ);
+
+ writel(MVPP2_EXT_GLOBAL_CTRL_DEFAULT,
+ priv->lms_base + MVPP2_MNG_EXTENDED_GLOBAL_CTRL_REG);
+
+ /* Allow cache snoop when transmiting packets */
+ mvpp2_write(priv, MVPP2_TX_SNOOP_REG, 0x1);
+
+ /* Buffer Manager initialization */
+ err = mvpp2_bm_init(dev, priv);
+ if (err < 0)
+ return err;
+
+ /* Parser default initialization */
+ err = mvpp2_prs_default_init(dev, priv);
+ if (err < 0)
+ return err;
+
+ /* Classifier default initialization */
+ mvpp2_cls_init(priv);
+
+ return 0;
+}
+
+/* SMI / MDIO functions */
+
+static int smi_wait_ready(struct mvpp2 *priv)
+{
+ u32 timeout = MVPP2_SMI_TIMEOUT;
+ u32 smi_reg;
+
+ /* wait till the SMI is not busy */
+ do {
+ /* read smi register */
+ smi_reg = readl(priv->lms_base + MVPP2_SMI);
+ if (timeout-- == 0) {
+ printf("Error: SMI busy timeout\n");
+ return -EFAULT;
+ }
+ } while (smi_reg & MVPP2_SMI_BUSY);
+
+ return 0;
+}
+
+/*
+ * mpp2_mdio_read - miiphy_read callback function.
+ *
+ * Returns 16bit phy register value, or 0xffff on error
+ */
+static int mpp2_mdio_read(struct mii_dev *bus, int addr, int devad, int reg)
+{
+ struct mvpp2 *priv = bus->priv;
+ u32 smi_reg;
+ u32 timeout;
+
+ /* check parameters */
+ if (addr > MVPP2_PHY_ADDR_MASK) {
+ printf("Error: Invalid PHY address %d\n", addr);
+ return -EFAULT;
+ }
+
+ if (reg > MVPP2_PHY_REG_MASK) {
+ printf("Err: Invalid register offset %d\n", reg);
+ return -EFAULT;
+ }
+
+ /* wait till the SMI is not busy */
+ if (smi_wait_ready(priv) < 0)
+ return -EFAULT;
+
+ /* fill the phy address and regiser offset and read opcode */
+ smi_reg = (addr << MVPP2_SMI_DEV_ADDR_OFFS)
+ | (reg << MVPP2_SMI_REG_ADDR_OFFS)
+ | MVPP2_SMI_OPCODE_READ;
+
+ /* write the smi register */
+ writel(smi_reg, priv->lms_base + MVPP2_SMI);
+
+ /* wait till read value is ready */
+ timeout = MVPP2_SMI_TIMEOUT;
+
+ do {
+ /* read smi register */
+ smi_reg = readl(priv->lms_base + MVPP2_SMI);
+ if (timeout-- == 0) {
+ printf("Err: SMI read ready timeout\n");
+ return -EFAULT;
+ }
+ } while (!(smi_reg & MVPP2_SMI_READ_VALID));
+
+ /* Wait for the data to update in the SMI register */
+ for (timeout = 0; timeout < MVPP2_SMI_TIMEOUT; timeout++)
+ ;
+
+ return readl(priv->lms_base + MVPP2_SMI) & MVPP2_SMI_DATA_MASK;
+}
+
+/*
+ * mpp2_mdio_write - miiphy_write callback function.
+ *
+ * Returns 0 if write succeed, -EINVAL on bad parameters
+ * -ETIME on timeout
+ */
+static int mpp2_mdio_write(struct mii_dev *bus, int addr, int devad, int reg,
+ u16 value)
+{
+ struct mvpp2 *priv = bus->priv;
+ u32 smi_reg;
+
+ /* check parameters */
+ if (addr > MVPP2_PHY_ADDR_MASK) {
+ printf("Error: Invalid PHY address %d\n", addr);
+ return -EFAULT;
+ }
+
+ if (reg > MVPP2_PHY_REG_MASK) {
+ printf("Err: Invalid register offset %d\n", reg);
+ return -EFAULT;
+ }
+
+ /* wait till the SMI is not busy */
+ if (smi_wait_ready(priv) < 0)
+ return -EFAULT;
+
+ /* fill the phy addr and reg offset and write opcode and data */
+ smi_reg = value << MVPP2_SMI_DATA_OFFS;
+ smi_reg |= (addr << MVPP2_SMI_DEV_ADDR_OFFS)
+ | (reg << MVPP2_SMI_REG_ADDR_OFFS);
+ smi_reg &= ~MVPP2_SMI_OPCODE_READ;
+
+ /* write the smi register */
+ writel(smi_reg, priv->lms_base + MVPP2_SMI);
+
+ return 0;
+}
+
+static int mvpp2_recv(struct udevice *dev, int flags, uchar **packetp)
+{
+ struct mvpp2_port *port = dev_get_priv(dev);
+ struct mvpp2_rx_desc *rx_desc;
+ struct mvpp2_bm_pool *bm_pool;
+ dma_addr_t phys_addr;
+ u32 bm, rx_status;
+ int pool, rx_bytes, err;
+ int rx_received;
+ struct mvpp2_rx_queue *rxq;
+ u32 cause_rx_tx, cause_rx, cause_misc;
+ u8 *data;
+
+ cause_rx_tx = mvpp2_read(port->priv,
+ MVPP2_ISR_RX_TX_CAUSE_REG(port->id));
+ cause_rx_tx &= ~MVPP2_CAUSE_TXQ_OCCUP_DESC_ALL_MASK;
+ cause_misc = cause_rx_tx & MVPP2_CAUSE_MISC_SUM_MASK;
+ if (!cause_rx_tx && !cause_misc)
+ return 0;
+
+ cause_rx = cause_rx_tx & MVPP2_CAUSE_RXQ_OCCUP_DESC_ALL_MASK;
+
+ /* Process RX packets */
+ cause_rx |= port->pending_cause_rx;
+ rxq = mvpp2_get_rx_queue(port, cause_rx);
+
+ /* Get number of received packets and clamp the to-do */
+ rx_received = mvpp2_rxq_received(port, rxq->id);
+
+ /* Return if no packets are received */
+ if (!rx_received)
+ return 0;
+
+ rx_desc = mvpp2_rxq_next_desc_get(rxq);
+ rx_status = rx_desc->status;
+ rx_bytes = rx_desc->data_size - MVPP2_MH_SIZE;
+ phys_addr = rx_desc->buf_phys_addr;
+
+ bm = mvpp2_bm_cookie_build(rx_desc);
+ pool = mvpp2_bm_cookie_pool_get(bm);
+ bm_pool = &port->priv->bm_pools[pool];
+
+ /* Check if buffer header is used */
+ if (rx_status & MVPP2_RXD_BUF_HDR)
+ return 0;
+
+ /* In case of an error, release the requested buffer pointer
+ * to the Buffer Manager. This request process is controlled
+ * by the hardware, and the information about the buffer is
+ * comprised by the RX descriptor.
+ */
+ if (rx_status & MVPP2_RXD_ERR_SUMMARY) {
+ mvpp2_rx_error(port, rx_desc);
+ /* Return the buffer to the pool */
+ mvpp2_pool_refill(port, bm, rx_desc->buf_phys_addr,
+ rx_desc->buf_cookie);
+ return 0;
+ }
+
+ err = mvpp2_rx_refill(port, bm_pool, bm, phys_addr);
+ if (err) {
+ netdev_err(port->dev, "failed to refill BM pools\n");
+ return 0;
+ }
+
+ /* Update Rx queue management counters */
+ mb();
+ mvpp2_rxq_status_update(port, rxq->id, 1, 1);
+
+ /* give packet to stack - skip on first n bytes */
+ data = (u8 *)phys_addr + 2 + 32;
+
+ if (rx_bytes <= 0)
+ return 0;
+
+ /*
+ * No cache invalidation needed here, since the rx_buffer's are
+ * located in a uncached memory region
+ */
+ *packetp = data;
+
+ return rx_bytes;
+}
+
+/* Drain Txq */
+static void mvpp2_txq_drain(struct mvpp2_port *port, struct mvpp2_tx_queue *txq,
+ int enable)
+{
+ u32 val;
+
+ mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
+ val = mvpp2_read(port->priv, MVPP2_TXQ_PREF_BUF_REG);
+ if (enable)
+ val |= MVPP2_TXQ_DRAIN_EN_MASK;
+ else
+ val &= ~MVPP2_TXQ_DRAIN_EN_MASK;
+ mvpp2_write(port->priv, MVPP2_TXQ_PREF_BUF_REG, val);
+}
+
+static int mvpp2_send(struct udevice *dev, void *packet, int length)
+{
+ struct mvpp2_port *port = dev_get_priv(dev);
+ struct mvpp2_tx_queue *txq, *aggr_txq;
+ struct mvpp2_tx_desc *tx_desc;
+ int tx_done;
+ int timeout;
+
+ txq = port->txqs[0];
+ aggr_txq = &port->priv->aggr_txqs[smp_processor_id()];
+
+ /* Get a descriptor for the first part of the packet */
+ tx_desc = mvpp2_txq_next_desc_get(aggr_txq);
+ tx_desc->phys_txq = txq->id;
+ tx_desc->data_size = length;
+ tx_desc->packet_offset = (u32)packet & MVPP2_TX_DESC_ALIGN;
+ tx_desc->buf_phys_addr = (u32)packet & ~MVPP2_TX_DESC_ALIGN;
+ /* First and Last descriptor */
+ tx_desc->command = MVPP2_TXD_L4_CSUM_NOT | MVPP2_TXD_IP_CSUM_DISABLE
+ | MVPP2_TXD_F_DESC | MVPP2_TXD_L_DESC;
+
+ /* Flush tx data */
+ flush_dcache_range((u32)packet, (u32)packet + length);
+
+ /* Enable transmit */
+ mb();
+ mvpp2_aggr_txq_pend_desc_add(port, 1);
+
+ mvpp2_write(port->priv, MVPP2_TXQ_NUM_REG, txq->id);
+
+ timeout = 0;
+ do {
+ if (timeout++ > 10000) {
+ printf("timeout: packet not sent from aggregated to phys TXQ\n");
+ return 0;
+ }
+ tx_done = mvpp2_txq_pend_desc_num_get(port, txq);
+ } while (tx_done);
+
+ /* Enable TXQ drain */
+ mvpp2_txq_drain(port, txq, 1);
+
+ timeout = 0;
+ do {
+ if (timeout++ > 10000) {
+ printf("timeout: packet not sent\n");
+ return 0;
+ }
+ tx_done = mvpp2_txq_sent_desc_proc(port, txq);
+ } while (!tx_done);
+
+ /* Disable TXQ drain */
+ mvpp2_txq_drain(port, txq, 0);
+
+ return 0;
+}
+
+static int mvpp2_start(struct udevice *dev)
+{
+ struct eth_pdata *pdata = dev_get_platdata(dev);
+ struct mvpp2_port *port = dev_get_priv(dev);
+
+ /* Load current MAC address */
+ memcpy(port->dev_addr, pdata->enetaddr, ETH_ALEN);
+
+ /* Reconfigure parser accept the original MAC address */
+ mvpp2_prs_update_mac_da(port, port->dev_addr);
+
+ mvpp2_port_power_up(port);
+
+ mvpp2_open(dev, port);
+
+ return 0;
+}
+
+static void mvpp2_stop(struct udevice *dev)
+{
+ struct mvpp2_port *port = dev_get_priv(dev);
+
+ mvpp2_stop_dev(port);
+ mvpp2_cleanup_rxqs(port);
+ mvpp2_cleanup_txqs(port);
+}
+
+static int mvpp2_probe(struct udevice *dev)
+{
+ struct mvpp2_port *port = dev_get_priv(dev);
+ struct mvpp2 *priv = dev_get_priv(dev->parent);
+ int err;
+
+ /* Initialize network controller */
+ err = mvpp2_init(dev, priv);
+ if (err < 0) {
+ dev_err(&pdev->dev, "failed to initialize controller\n");
+ return err;
+ }
+
+ return mvpp2_port_probe(dev, port, dev->of_offset, priv,
+ &buffer_loc.first_rxq);
+}
+
+static const struct eth_ops mvpp2_ops = {
+ .start = mvpp2_start,
+ .send = mvpp2_send,
+ .recv = mvpp2_recv,
+ .stop = mvpp2_stop,
+};
+
+static struct driver mvpp2_driver = {
+ .name = "mvpp2",
+ .id = UCLASS_ETH,
+ .probe = mvpp2_probe,
+ .ops = &mvpp2_ops,
+ .priv_auto_alloc_size = sizeof(struct mvpp2_port),
+ .platdata_auto_alloc_size = sizeof(struct eth_pdata),
+};
+
+/*
+ * Use a MISC device to bind the n instances (child nodes) of the
+ * network base controller in UCLASS_ETH.
+ */
+static int mvpp2_base_probe(struct udevice *dev)
+{
+ struct mvpp2 *priv = dev_get_priv(dev);
+ struct mii_dev *bus;
+ void *bd_space;
+ u32 size = 0;
+ int i;
+
+ /*
+ * U-Boot special buffer handling:
+ *
+ * Allocate buffer area for descs and rx_buffers. This is only
+ * done once for all interfaces. As only one interface can
+ * be active. Make this area DMA-safe by disabling the D-cache
+ */
+
+ /* Align buffer area for descs and rx_buffers to 1MiB */
+ bd_space = memalign(1 << MMU_SECTION_SHIFT, BD_SPACE);
+ mmu_set_region_dcache_behaviour((u32)bd_space, BD_SPACE, DCACHE_OFF);
+
+ buffer_loc.aggr_tx_descs = (struct mvpp2_tx_desc *)bd_space;
+ size += MVPP2_AGGR_TXQ_SIZE * MVPP2_DESC_ALIGNED_SIZE;
+
+ buffer_loc.tx_descs = (struct mvpp2_tx_desc *)((u32)bd_space + size);
+ size += MVPP2_MAX_TXD * MVPP2_DESC_ALIGNED_SIZE;
+
+ buffer_loc.rx_descs = (struct mvpp2_rx_desc *)((u32)bd_space + size);
+ size += MVPP2_MAX_RXD * MVPP2_DESC_ALIGNED_SIZE;
+
+ for (i = 0; i < MVPP2_BM_POOLS_NUM; i++) {
+ buffer_loc.bm_pool[i] = (u32 *)((u32)bd_space + size);
+ size += MVPP2_BM_POOL_SIZE_MAX * sizeof(u32);
+ }
+
+ for (i = 0; i < MVPP2_BM_LONG_BUF_NUM; i++) {
+ buffer_loc.rx_buffer[i] = (u32 *)((u32)bd_space + size);
+ size += RX_BUFFER_SIZE;
+ }
+
+ /* Save base addresses for later use */
+ priv->base = (void *)dev_get_addr_index(dev, 0);
+ if (IS_ERR(priv->base))
+ return PTR_ERR(priv->base);
+
+ priv->lms_base = (void *)dev_get_addr_index(dev, 1);
+ if (IS_ERR(priv->lms_base))
+ return PTR_ERR(priv->lms_base);
+
+ /* Finally create and register the MDIO bus driver */
+ bus = mdio_alloc();
+ if (!bus) {
+ printf("Failed to allocate MDIO bus\n");
+ return -ENOMEM;
+ }
+
+ bus->read = mpp2_mdio_read;
+ bus->write = mpp2_mdio_write;
+ snprintf(bus->name, sizeof(bus->name), dev->name);
+ bus->priv = (void *)priv;
+ priv->bus = bus;
+
+ return mdio_register(bus);
+}
+
+static int mvpp2_base_bind(struct udevice *parent)
+{
+ const void *blob = gd->fdt_blob;
+ int node = parent->of_offset;
+ struct uclass_driver *drv;
+ struct udevice *dev;
+ struct eth_pdata *plat;
+ char *name;
+ int subnode;
+ u32 id;
+
+ /* Lookup eth driver */
+ drv = lists_uclass_lookup(UCLASS_ETH);
+ if (!drv) {
+ puts("Cannot find eth driver\n");
+ return -ENOENT;
+ }
+
+ fdt_for_each_subnode(blob, subnode, node) {
+ /* Skip disabled ports */
+ if (!fdtdec_get_is_enabled(blob, subnode))
+ continue;
+
+ plat = calloc(1, sizeof(*plat));
+ if (!plat)
+ return -ENOMEM;
+
+ id = fdtdec_get_int(blob, subnode, "port-id", -1);
+
+ name = calloc(1, 16);
+ sprintf(name, "mvpp2-%d", id);
+
+ /* Create child device UCLASS_ETH and bind it */
+ device_bind(parent, &mvpp2_driver, name, plat, subnode, &dev);
+ dev->of_offset = subnode;
+ }
+
+ return 0;
+}
+
+static const struct udevice_id mvpp2_ids[] = {
+ { .compatible = "marvell,armada-375-pp2" },
+ { }
+};
+
+U_BOOT_DRIVER(mvpp2_base) = {
+ .name = "mvpp2_base",
+ .id = UCLASS_MISC,
+ .of_match = mvpp2_ids,
+ .bind = mvpp2_base_bind,
+ .probe = mvpp2_base_probe,
+ .priv_auto_alloc_size = sizeof(struct mvpp2),
+};
projects / u-boot.git / commitdiff