// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later /* * Copyright 2008 - 2015 Freescale Semiconductor Inc. */ #define pr_fmt(fmt) … #include <linux/io.h> #include <linux/platform_device.h> #include <linux/slab.h> #include <linux/module.h> #include <linux/interrupt.h> #include <linux/of_platform.h> #include <linux/of_address.h> #include <linux/delay.h> #include <linux/libfdt_env.h> #include "fman.h" #include "fman_port.h" #include "fman_sp.h" #include "fman_keygen.h" /* Queue ID */ #define DFLT_FQ_ID … /* General defines */ #define PORT_BMI_FIFO_UNITS … #define MAX_PORT_FIFO_SIZE(bmi_max_fifo_size) … #define PORT_CG_MAP_NUM … #define PORT_PRS_RESULT_WORDS_NUM … #define PORT_IC_OFFSET_UNITS … #define MIN_EXT_BUF_SIZE … #define BMI_PORT_REGS_OFFSET … #define QMI_PORT_REGS_OFFSET … #define HWP_PORT_REGS_OFFSET … /* Default values */ #define DFLT_PORT_BUFFER_PREFIX_CONTEXT_DATA_ALIGN … #define DFLT_PORT_CUT_BYTES_FROM_END … #define DFLT_PORT_ERRORS_TO_DISCARD … #define DFLT_PORT_MAX_FRAME_LENGTH … #define DFLT_PORT_RX_FIFO_PRI_ELEVATION_LEV(bmi_max_fifo_size) … #define DFLT_PORT_RX_FIFO_THRESHOLD(major, bmi_max_fifo_size) … \ #define DFLT_PORT_EXTRA_NUM_OF_FIFO_BUFS … /* QMI defines */ #define QMI_DEQ_CFG_SUBPORTAL_MASK … #define QMI_PORT_CFG_EN … #define QMI_PORT_STATUS_DEQ_FD_BSY … #define QMI_DEQ_CFG_PRI … #define QMI_DEQ_CFG_TYPE1 … #define QMI_DEQ_CFG_TYPE2 … #define QMI_DEQ_CFG_TYPE3 … #define QMI_DEQ_CFG_PREFETCH_PARTIAL … #define QMI_DEQ_CFG_PREFETCH_FULL … #define QMI_DEQ_CFG_SP_MASK … #define QMI_DEQ_CFG_SP_SHIFT … #define QMI_BYTE_COUNT_LEVEL_CONTROL(_type) … /* BMI defins */ #define BMI_EBD_EN … #define BMI_PORT_CFG_EN … #define BMI_PORT_STATUS_BSY … #define BMI_DMA_ATTR_SWP_SHIFT … #define BMI_DMA_ATTR_WRITE_OPTIMIZE … #define BMI_RX_FIFO_PRI_ELEVATION_SHIFT … #define BMI_RX_FIFO_THRESHOLD_ETHE … #define BMI_FRAME_END_CS_IGNORE_SHIFT … #define BMI_FRAME_END_CS_IGNORE_MASK … #define BMI_RX_FRAME_END_CUT_SHIFT … #define BMI_RX_FRAME_END_CUT_MASK … #define BMI_IC_TO_EXT_SHIFT … #define BMI_IC_TO_EXT_MASK … #define BMI_IC_FROM_INT_SHIFT … #define BMI_IC_FROM_INT_MASK … #define BMI_IC_SIZE_MASK … #define BMI_INT_BUF_MARG_SHIFT … #define BMI_INT_BUF_MARG_MASK … #define BMI_EXT_BUF_MARG_START_SHIFT … #define BMI_EXT_BUF_MARG_START_MASK … #define BMI_EXT_BUF_MARG_END_MASK … #define BMI_CMD_MR_LEAC … #define BMI_CMD_MR_SLEAC … #define BMI_CMD_MR_MA … #define BMI_CMD_MR_DEAS … #define BMI_CMD_RX_MR_DEF … #define BMI_CMD_TX_MR_DEF … #define BMI_CMD_ATTR_ORDER … #define BMI_CMD_ATTR_SYNC … #define BMI_CMD_ATTR_COLOR_SHIFT … #define BMI_FIFO_PIPELINE_DEPTH_SHIFT … #define BMI_FIFO_PIPELINE_DEPTH_MASK … #define BMI_NEXT_ENG_FD_BITS_SHIFT … #define BMI_EXT_BUF_POOL_VALID … #define BMI_EXT_BUF_POOL_EN_COUNTER … #define BMI_EXT_BUF_POOL_BACKUP … #define BMI_EXT_BUF_POOL_ID_SHIFT … #define BMI_EXT_BUF_POOL_ID_MASK … #define BMI_POOL_DEP_NUM_OF_POOLS_SHIFT … #define BMI_TX_FIFO_MIN_FILL_SHIFT … #define BMI_PRIORITY_ELEVATION_LEVEL … #define BMI_FIFO_THRESHOLD … #define BMI_DEQUEUE_PIPELINE_DEPTH(_type, _speed) … #define RX_ERRS_TO_ENQ … /* NIA defines */ #define NIA_ORDER_RESTOR … #define NIA_ENG_BMI … #define NIA_ENG_QMI_ENQ … #define NIA_ENG_QMI_DEQ … #define NIA_ENG_HWP … #define NIA_ENG_HWK … #define NIA_BMI_AC_ENQ_FRAME … #define NIA_BMI_AC_TX_RELEASE … #define NIA_BMI_AC_RELEASE … #define NIA_BMI_AC_TX … #define NIA_BMI_AC_FETCH_ALL_FRAME … /* Port IDs */ #define TX_10G_PORT_BASE … #define RX_10G_PORT_BASE … /* BMI Rx port register map */ struct fman_port_rx_bmi_regs { … }; /* BMI Tx port register map */ struct fman_port_tx_bmi_regs { … }; /* BMI port register map */ fman_port_bmi_regs; /* QMI port register map */ struct fman_port_qmi_regs { … }; #define HWP_HXS_COUNT … #define HWP_HXS_PHE_REPORT … #define HWP_HXS_PCAC_PSTAT … #define HWP_HXS_PCAC_PSTOP … #define HWP_HXS_TCP_OFFSET … #define HWP_HXS_UDP_OFFSET … #define HWP_HXS_SH_PAD_REM … struct fman_port_hwp_regs { … }; /* QMI dequeue prefetch modes */ enum fman_port_deq_prefetch { … }; /* A structure for defining FM port resources */ struct fman_port_rsrc { … }; enum fman_port_dma_swap { … }; /* Default port color */ enum fman_port_color { … }; /* QMI dequeue from the SP channel - types */ enum fman_port_deq_type { … }; /* External buffer pools configuration */ struct fman_port_bpools { … }; struct fman_port_cfg { … }; struct fman_port_rx_pools_params { … }; struct fman_port_dts_params { … }; struct fman_port { … }; static int init_bmi_rx(struct fman_port *port) { … } static int init_bmi_tx(struct fman_port *port) { … } static int init_qmi(struct fman_port *port) { … } static void stop_port_hwp(struct fman_port *port) { … } static void start_port_hwp(struct fman_port *port) { … } static void init_hwp(struct fman_port *port) { … } static int init(struct fman_port *port) { … } static int set_bpools(const struct fman_port *port, const struct fman_port_bpools *bp) { … } static bool is_init_done(struct fman_port_cfg *cfg) { … } static int verify_size_of_fifo(struct fman_port *port) { … } static int set_ext_buffer_pools(struct fman_port *port) { … } static int init_low_level_driver(struct fman_port *port) { … } static int fill_soc_specific_params(struct fman_port *port) { … } static int get_dflt_fifo_deq_pipeline_depth(u8 major, enum fman_port_type type, u16 speed) { … } static int get_dflt_num_of_tasks(u8 major, enum fman_port_type type, u16 speed) { … } static int get_dflt_extra_num_of_tasks(u8 major, enum fman_port_type type, u16 speed) { … } static int get_dflt_num_of_open_dmas(u8 major, enum fman_port_type type, u16 speed) { … } static int get_dflt_extra_num_of_open_dmas(u8 major, enum fman_port_type type, u16 speed) { … } static int get_dflt_num_of_fifo_bufs(u8 major, enum fman_port_type type, u16 speed) { … } static void set_dflt_cfg(struct fman_port *port, struct fman_port_params *port_params) { … } static void set_rx_dflt_cfg(struct fman_port *port, struct fman_port_params *port_params) { … } static void set_tx_dflt_cfg(struct fman_port *port, struct fman_port_params *port_params, struct fman_port_dts_params *dts_params) { … } /** * fman_port_config * @port: Pointer to the port structure * @params: Pointer to data structure of parameters * * Creates a descriptor for the FM PORT module. * The routine returns a pointer to the FM PORT object. * This descriptor must be passed as first parameter to all other FM PORT * function calls. * No actual initialization or configuration of FM hardware is done by this * routine. * * Return: 0 on success; Error code otherwise. */ int fman_port_config(struct fman_port *port, struct fman_port_params *params) { … } EXPORT_SYMBOL(…); /* * fman_port_use_kg_hash * @port: A pointer to a FM Port module. * @enable: enable or disable * * Sets the HW KeyGen or the BMI as HW Parser next engine, enabling * or bypassing the KeyGen hashing of Rx traffic */ void fman_port_use_kg_hash(struct fman_port *port, bool enable) { … } EXPORT_SYMBOL(…); /** * fman_port_init * @port: A pointer to a FM Port module. * * Initializes the FM PORT module by defining the software structure and * configuring the hardware registers. * * Return: 0 on success; Error code otherwise. */ int fman_port_init(struct fman_port *port) { … } EXPORT_SYMBOL(…); /** * fman_port_cfg_buf_prefix_content * @port: A pointer to a FM Port module. * @buffer_prefix_content: A structure of parameters describing * the structure of the buffer. * Out parameter: * Start margin - offset of data from * start of external buffer. * Defines the structure, size and content of the application buffer. * The prefix, in Tx ports, if 'pass_prs_result', the application should set * a value to their offsets in the prefix of the FM will save the first * 'priv_data_size', than, depending on 'pass_prs_result' and * 'pass_time_stamp', copy parse result and timeStamp, and the packet itself * (in this order), to the application buffer, and to offset. * Calling this routine changes the buffer margins definitions in the internal * driver data base from its default configuration: * Data size: [DEFAULT_PORT_BUFFER_PREFIX_CONTENT_PRIV_DATA_SIZE] * Pass Parser result: [DEFAULT_PORT_BUFFER_PREFIX_CONTENT_PASS_PRS_RESULT]. * Pass timestamp: [DEFAULT_PORT_BUFFER_PREFIX_CONTENT_PASS_TIME_STAMP]. * May be used for all ports * * Allowed only following fman_port_config() and before fman_port_init(). * * Return: 0 on success; Error code otherwise. */ int fman_port_cfg_buf_prefix_content(struct fman_port *port, struct fman_buffer_prefix_content * buffer_prefix_content) { … } EXPORT_SYMBOL(…); /** * fman_port_disable * @port: A pointer to a FM Port module. * * Gracefully disable an FM port. The port will not start new tasks after all * tasks associated with the port are terminated. * * This is a blocking routine, it returns after port is gracefully stopped, * i.e. the port will not except new frames, but it will finish all frames * or tasks which were already began. * Allowed only following fman_port_init(). * * Return: 0 on success; Error code otherwise. */ int fman_port_disable(struct fman_port *port) { … } EXPORT_SYMBOL(…); /** * fman_port_enable * @port: A pointer to a FM Port module. * * A runtime routine provided to allow disable/enable of port. * * Allowed only following fman_port_init(). * * Return: 0 on success; Error code otherwise. */ int fman_port_enable(struct fman_port *port) { … } EXPORT_SYMBOL(…); /** * fman_port_bind * @dev: FMan Port OF device pointer * * Bind to a specific FMan Port. * * Allowed only after the port was created. * * Return: A pointer to the FMan port device. */ struct fman_port *fman_port_bind(struct device *dev) { … } EXPORT_SYMBOL(…); /** * fman_port_get_qman_channel_id * @port: Pointer to the FMan port devuce * * Get the QMan channel ID for the specific port * * Return: QMan channel ID */ u32 fman_port_get_qman_channel_id(struct fman_port *port) { … } EXPORT_SYMBOL(…); /** * fman_port_get_device * @port: Pointer to the FMan port device * * Get the 'struct device' associated to the specified FMan port device * * Return: pointer to associated 'struct device' */ struct device *fman_port_get_device(struct fman_port *port) { … } EXPORT_SYMBOL(…); int fman_port_get_hash_result_offset(struct fman_port *port, u32 *offset) { … } EXPORT_SYMBOL(…); int fman_port_get_tstamp(struct fman_port *port, const void *data, u64 *tstamp) { … } EXPORT_SYMBOL(…); static int fman_port_probe(struct platform_device *of_dev) { … } static const struct of_device_id fman_port_match[] = …; MODULE_DEVICE_TABLE(of, fman_port_match); static struct platform_driver fman_port_driver = …; static int __init fman_port_load(void) { … } module_init(…) …; static void __exit fman_port_unload(void) { … } module_exit(fman_port_unload); MODULE_LICENSE(…) …; MODULE_DESCRIPTION(…) …;
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