diff options
Diffstat (limited to 'src/dpdk22/drivers/net/szedata2/rte_eth_szedata2.h')
| -rw-r--r-- | src/dpdk22/drivers/net/szedata2/rte_eth_szedata2.h | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/src/dpdk22/drivers/net/szedata2/rte_eth_szedata2.h b/src/dpdk22/drivers/net/szedata2/rte_eth_szedata2.h new file mode 100644 index 00000000..4d09a98d --- /dev/null +++ b/src/dpdk22/drivers/net/szedata2/rte_eth_szedata2.h @@ -0,0 +1,102 @@ +/*- + * BSD LICENSE + * + * Copyright (c) 2015 CESNET + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of CESNET nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef RTE_PMD_SZEDATA2_H_ +#define RTE_PMD_SZEDATA2_H_ + +/* szedata2_packet header length == 4 bytes == 2B segment size + 2B hw size */ +#define RTE_SZE2_PACKET_HEADER_SIZE 4 + +#define RTE_SZE2_MMIO_MAX 10 + +/*! + * Round 'what' to the nearest larger (or equal) multiple of '8' + * (szedata2 packet is aligned to 8 bytes) + */ +#define RTE_SZE2_ALIGN8(what) (((what) + ((8) - 1)) & (~((8) - 1))) + +/*! main handle structure */ +struct szedata { + int fd; + struct sze2_instance_info *info; + uint32_t *write_size; + void *space[RTE_SZE2_MMIO_MAX]; + struct szedata_lock lock[2][2]; + + __u32 *rx_asize, *tx_asize; + + /* szedata_read_next variables - to keep context (ct) */ + + /* + * rx + */ + /** initial sze lock ptr */ + const struct szedata_lock *ct_rx_lck_orig; + /** current sze lock ptr (initial or next) */ + const struct szedata_lock *ct_rx_lck; + /** remaining bytes (not read) within current lock */ + unsigned int ct_rx_rem_bytes; + /** current pointer to locked memory */ + unsigned char *ct_rx_cur_ptr; + /** + * allocated buffer to store RX packet if it was split + * into 2 buffers + */ + unsigned char *ct_rx_buffer; + /** registered function to provide filtering based on hwdata */ + int (*ct_rx_filter)(u_int16_t hwdata_len, u_char *hwdata); + + /* + * tx + */ + /** + * buffer for tx - packet is prepared here + * (in future for burst write) + */ + unsigned char *ct_tx_buffer; + /** initial sze TX lock ptrs - number according to TX interfaces */ + const struct szedata_lock **ct_tx_lck_orig; + /** current sze TX lock ptrs - number according to TX interfaces */ + const struct szedata_lock **ct_tx_lck; + /** already written bytes in both locks */ + unsigned int *ct_tx_written_bytes; + /** remaining bytes (not written) within current lock */ + unsigned int *ct_tx_rem_bytes; + /** current pointers to locked memory */ + unsigned char **ct_tx_cur_ptr; + /** NUMA node closest to PCIe device, or -1 */ + int numa_node; +}; + + +#endif |