/********************************************************************** * Author: Cavium, Inc. * * Contact: [email protected] * Please include "LiquidIO" in the subject. * * Copyright (c) 2003-2016 Cavium, Inc. * * This file is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, Version 2, as * published by the Free Software Foundation. * * This file is distributed in the hope that it will be useful, but * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or * NONINFRINGEMENT. See the GNU General Public License for more details. ***********************************************************************/ /* * @file octeon_console.c */ #include <linux/moduleparam.h> #include <linux/pci.h> #include <linux/netdevice.h> #include <linux/crc32.h> #include "liquidio_common.h" #include "octeon_droq.h" #include "octeon_iq.h" #include "response_manager.h" #include "octeon_device.h" #include "liquidio_image.h" #include "octeon_mem_ops.h" static void octeon_remote_lock(void); static void octeon_remote_unlock(void); static u64 cvmx_bootmem_phy_named_block_find(struct octeon_device *oct, const char *name, u32 flags); static int octeon_console_read(struct octeon_device *oct, u32 console_num, char *buffer, u32 buf_size); #define BOOTLOADER_PCI_READ_BUFFER_DATA_ADDR … #define BOOTLOADER_PCI_READ_BUFFER_LEN_ADDR … #define BOOTLOADER_PCI_READ_BUFFER_OWNER_ADDR … #define BOOTLOADER_PCI_READ_DESC_ADDR … #define BOOTLOADER_PCI_WRITE_BUFFER_STR_LEN … #define OCTEON_PCI_IO_BUF_OWNER_OCTEON … #define OCTEON_PCI_IO_BUF_OWNER_HOST … /** Can change without breaking ABI */ #define CVMX_BOOTMEM_NUM_NAMED_BLOCKS … /** minimum alignment of bootmem alloced blocks */ #define CVMX_BOOTMEM_ALIGNMENT_SIZE … /** CVMX bootmem descriptor major version */ #define CVMX_BOOTMEM_DESC_MAJ_VER … /* CVMX bootmem descriptor minor version */ #define CVMX_BOOTMEM_DESC_MIN_VER … /* Current versions */ #define OCTEON_PCI_CONSOLE_MAJOR_VERSION … #define OCTEON_PCI_CONSOLE_MINOR_VERSION … #define OCTEON_PCI_CONSOLE_BLOCK_NAME … #define OCTEON_CONSOLE_POLL_INTERVAL_MS … /* First three members of cvmx_bootmem_desc are left in original * positions for backwards compatibility. * Assumes big endian target */ struct cvmx_bootmem_desc { … }; /* Structure that defines a single console. * * Note: when read_index == write_index, the buffer is empty. * The actual usable size of each console is console_buf_size -1; */ struct octeon_pci_console { … }; /* This is the main container structure that contains all the information * about all PCI consoles. The address of this structure is passed to various * routines that operation on PCI consoles. */ struct octeon_pci_console_desc { … }; /* * This function is the implementation of the get macros defined * for individual structure members. The argument are generated * by the macros inorder to read only the needed memory. * * @param oct Pointer to current octeon device * @param base 64bit physical address of the complete structure * @param offset Offset from the beginning of the structure to the member being * accessed. * @param size Size of the structure member. * * @return Value of the structure member promoted into a u64. */ static inline u64 __cvmx_bootmem_desc_get(struct octeon_device *oct, u64 base, u32 offset, u32 size) { … } /* * This function retrieves the string name of a named block. It is * more complicated than a simple memcpy() since the named block * descriptor may not be directly accessible. * * @param addr Physical address of the named block descriptor * @param str String to receive the named block string name * @param len Length of the string buffer, which must match the length * stored in the bootmem descriptor. */ static void CVMX_BOOTMEM_NAMED_GET_NAME(struct octeon_device *oct, u64 addr, char *str, u32 len) { … } /* See header file for descriptions of functions */ /* * Check the version information on the bootmem descriptor * * @param exact_match * Exact major version to check against. A zero means * check that the version supports named blocks. * * @return Zero if the version is correct. Negative if the version is * incorrect. Failures also cause a message to be displayed. */ static int __cvmx_bootmem_check_version(struct octeon_device *oct, u32 exact_match) { … } static const struct cvmx_bootmem_named_block_desc *__cvmx_bootmem_find_named_block_flags(struct octeon_device *oct, const char *name, u32 flags) { … } static u64 cvmx_bootmem_phy_named_block_find(struct octeon_device *oct, const char *name, u32 flags) { … } /* * Find a named block on the remote Octeon * * @param name Name of block to find * @param base_addr Address the block is at (OUTPUT) * @param size The size of the block (OUTPUT) * * @return Zero on success, One on failure. */ static int octeon_named_block_find(struct octeon_device *oct, const char *name, u64 *base_addr, u64 *size) { … } static void octeon_remote_lock(void) { … } static void octeon_remote_unlock(void) { … } int octeon_console_send_cmd(struct octeon_device *oct, char *cmd_str, u32 wait_hundredths) { … } int octeon_wait_for_bootloader(struct octeon_device *oct, u32 wait_time_hundredths) { … } static void octeon_console_handle_result(struct octeon_device *oct, size_t console_num) { … } static char console_buffer[OCTEON_CONSOLE_MAX_READ_BYTES]; static void output_console_line(struct octeon_device *oct, struct octeon_console *console, size_t console_num, char *console_buffer, s32 bytes_read) { … } static void check_console(struct work_struct *work) { … } int octeon_init_consoles(struct octeon_device *oct) { … } static void octeon_get_uboot_version(struct octeon_device *oct) { … } int octeon_add_console(struct octeon_device *oct, u32 console_num, char *dbg_enb) { … } /* * Removes all consoles * * @param oct octeon device */ void octeon_remove_consoles(struct octeon_device *oct) { … } static inline int octeon_console_free_bytes(u32 buffer_size, u32 wr_idx, u32 rd_idx) { … } static inline int octeon_console_avail_bytes(u32 buffer_size, u32 wr_idx, u32 rd_idx) { … } static int octeon_console_read(struct octeon_device *oct, u32 console_num, char *buffer, u32 buf_size) { … } #define FBUF_SIZE … #define MAX_BOOTTIME_SIZE … int octeon_download_firmware(struct octeon_device *oct, const u8 *data, size_t size) { … }
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