vpp - Vector Packet Processing

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author	Nicolas PLANEL <nplanel@gmail.com>	2025-03-05 16:37:47 +0100
committer	Mohammed HAWARI <momohawari@gmail.com>	2025-03-17 10:01:07 +0000
commit	26bd3e939e42ad13fd5f569e23d904826254b0db (patch)
tree	14132c8ed8ee917d0e63856003851cae9ee6da3f /extras/vpp_config/scripts/dpdk-devbind.py
parent	ee10298fe95d300b8e389e17e78e0735fec54797 (diff)

dpdk: rte_eth_tx_prepare need to called before transmiting packets

By the DPDK documentation rte_eth_tx_prepare() call is required to prepare the NIC and to validate the mbufs. This would fix hardware bad UDP checksum generated by ena driver issue. As performance will be impacted depending on the driver tx_prepare() callback I defined a tx-prepare flag that would be enabled by default on ena driver but could be enabled in the configuration if need for others drivers. Note: This option would normally be exclusive with intel_phdr_cksum as driver's tx_prepare would normally cover this usage. Type: fix Change-Id: Ic7c21682f7bd92b35bd9b1028129709baa2a64d4 Signed-off-by: Nicolas PLANEL <nplanel@cisco.com> Signed-off-by: Nicolas PLANEL <nplanel@gmail.com>

Diffstat (limited to 'extras/vpp_config/scripts/dpdk-devbind.py')

0 files changed, 0 insertions, 0 deletions

/* * Copyright (c) 2015 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at: * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ /* * unix.h: Unix specific main state * * Copyright (c) 2008 Eliot Dresselhaus * * Permission is hereby granted, free of charge, to any person obtaining * a copy of this software and associated documentation files (the * "Software"), to deal in the Software without restriction, including * without limitation the rights to use, copy, modify, merge, publish, * distribute, sublicense, and/or sell copies of the Software, and to * permit persons to whom the Software is furnished to do so, subject to * the following conditions: * * The above copyright notice and this permission notice shall be * included in all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ #ifndef included_unix_unix_h #define included_unix_unix_h #include <vppinfra/file.h> #include <vppinfra/socket.h> #include <termios.h> typedef struct { f64 time; clib_error_t *error; } unix_error_history_t; typedef struct { /* Back pointer to main structure. */ vlib_main_t *vlib_main; u32 flags; /* Run interactively or as daemon (background process). */ #define UNIX_FLAG_INTERACTIVE (1 << 0) #define UNIX_FLAG_NODAEMON (1 << 1) #define UNIX_FLAG_NOSYSLOG (1 << 2) #define UNIX_FLAG_NOCOLOR (1 << 3) #define UNIX_FLAG_NOBANNER (1 << 4) /* CLI listen socket. */ clib_socket_t cli_listen_socket; /* Circular buffer of last unix errors. */ unix_error_history_t error_history[128]; u32 error_history_index; u64 n_total_errors; /* startup-config filename */ u8 *startup_config_filename; /* runtime directory path */ u8 *runtime_dir; /* pidfile filename */ u8 *pidfile; /* unix config complete */ volatile int unix_config_complete; /* CLI log file. GIGO. */ u8 *log_filename; int log_fd; /* Don't put CLI connections into character mode */ int cli_line_mode; /* Maximum amount of command line history to keep per session */ u32 cli_history_limit; /* Suppress the welcome banner at CLI session start */ int cli_no_banner; /* Maximum pager buffer size */ u32 cli_pager_buffer_limit; /* Suppress the pager */ int cli_no_pager; /* Store the original state of stdin when it's a tty */ struct termios tio_stdin; int tio_isset; u32 poll_sleep_usec; } unix_main_t; /** CLI session events. */ typedef enum { UNIX_CLI_PROCESS_EVENT_READ_READY, /**< A file descriptor has data to be read. */ UNIX_CLI_PROCESS_EVENT_QUIT, /**< A CLI session wants to close. */ } unix_cli_process_event_type_t; /* Global main structure. */ extern unix_main_t unix_main; extern clib_file_main_t file_main; always_inline void unix_save_error (unix_main_t * um, clib_error_t * error) { unix_error_history_t *eh = um->error_history + um->error_history_index; clib_error_free_vector (eh->error); eh->error = error; eh->time = vlib_time_now (um->vlib_main); um->n_total_errors += 1; if (++um->error_history_index >= ARRAY_LEN (um->error_history)) um->error_history_index = 0; } /* Main function for Unix VLIB. */ int vlib_unix_main (int argc, char *argv[]); /* Set prompt for CLI. */ void vlib_unix_cli_set_prompt (char *prompt); static inline unix_main_t * vlib_unix_get_main (void) { return &unix_main; } static inline char * vlib_unix_get_runtime_dir (void) { return (char *) unix_main.runtime_dir; } /* thread stack array; vec_len = max number of threads */ extern u8 **vlib_thread_stacks; /* utils */ clib_error_t *foreach_directory_file (char *dir_name, clib_error_t * (*f) (void *arg, u8 * path_name, u8 * file_name), void *arg, int scan_dirs); clib_error_t *vlib_unix_recursive_mkdir (char *path); clib_error_t *vlib_unix_validate_runtime_file (unix_main_t * um, const char *path, u8 ** full_path); #endif /* included_unix_unix_h */ /* * fd.io coding-style-patch-verification: ON * * Local Variables: * eval: (c-set-style "gnu") * End: */


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