diff options
Diffstat (limited to 'drivers/net/ena/ena_ethdev.h')
| -rw-r--r-- | drivers/net/ena/ena_ethdev.h | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/drivers/net/ena/ena_ethdev.h b/drivers/net/ena/ena_ethdev.h new file mode 100644 index 00000000..ba6f01e6 --- /dev/null +++ b/drivers/net/ena/ena_ethdev.h @@ -0,0 +1,160 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates. +* 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 copyright holder 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 _ENA_ETHDEV_H_ +#define _ENA_ETHDEV_H_ + +#include <rte_pci.h> + +#include "ena_com.h" + +#define ENA_REGS_BAR 0 +#define ENA_MEM_BAR 2 + +#define ENA_MAX_NUM_QUEUES 128 + +#define ENA_DEFAULT_TX_SW_DESCS (1024) +#define ENA_DEFAULT_TX_HW_DESCS (1024) +#define ENA_DEFAULT_RING_SIZE (1024) + +#define ENA_MIN_FRAME_LEN 64 + +#define ENA_NAME_MAX_LEN 20 +#define ENA_IRQNAME_SIZE 40 + +#define ENA_PKT_MAX_BUFS 17 + +#define ENA_CIRC_COUNT(head, tail, size) \ + (((uint16_t)((uint16_t)(head) - (uint16_t)(tail))) & ((size) - 1)) + +#define ENA_CIRC_INC(index, step, size) \ + ((uint16_t)(index) + (uint16_t)(step)) +#define ENA_CIRC_INC_WRAP(index, step, size) \ + (((uint16_t)(index) + (uint16_t)(step)) & ((size) - 1)) + +#define ENA_TX_RING_IDX_NEXT(idx, ring_size) \ + ENA_CIRC_INC_WRAP(idx, 1, ring_size) +#define ENA_RX_RING_IDX_NEXT(idx, ring_size) \ + ENA_CIRC_INC_WRAP(idx, 1, ring_size) + +struct ena_adapter; + +enum ena_ring_type { + ENA_RING_TYPE_RX = 1, + ENA_RING_TYPE_TX = 2, +}; + +struct ena_tx_buffer { + struct rte_mbuf *mbuf; + unsigned int tx_descs; + unsigned int num_of_bufs; + struct ena_com_buf bufs[ENA_PKT_MAX_BUFS]; +}; + +struct ena_ring { + u16 next_to_use; + u16 next_to_clean; + + enum ena_ring_type type; + enum ena_admin_placement_policy_type tx_mem_queue_type; + /* Holds the empty requests for TX OOO completions */ + uint16_t *empty_tx_reqs; + union { + struct ena_tx_buffer *tx_buffer_info; /* contex of tx packet */ + struct rte_mbuf **rx_buffer_info; /* contex of rx packet */ + }; + unsigned int ring_size; /* number of tx/rx_buffer_info's entries */ + + struct ena_com_io_cq *ena_com_io_cq; + struct ena_com_io_sq *ena_com_io_sq; + + struct ena_com_rx_buf_info ena_bufs[ENA_PKT_MAX_BUFS] + __rte_cache_aligned; + + struct rte_mempool *mb_pool; + unsigned int port_id; + unsigned int id; + /* Max length PMD can push to device for LLQ */ + uint8_t tx_max_header_size; + int configured; + struct ena_adapter *adapter; +} __rte_cache_aligned; + +enum ena_adapter_state { + ENA_ADAPTER_STATE_FREE = 0, + ENA_ADAPTER_STATE_INIT = 1, + ENA_ADAPTER_STATE_RUNNING = 2, + ENA_ADAPTER_STATE_STOPPED = 3, + ENA_ADAPTER_STATE_CONFIG = 4, +}; + +struct ena_driver_stats { + rte_atomic64_t ierrors; + rte_atomic64_t oerrors; + rte_atomic64_t imcasts; + rte_atomic64_t rx_nombuf; +}; + +/* board specific private data structure */ +struct ena_adapter { + /* OS defined structs */ + struct rte_pci_device *pdev; + struct rte_eth_dev_data *rte_eth_dev_data; + struct rte_eth_dev *rte_dev; + + struct ena_com_dev ena_dev __rte_cache_aligned; + + /* TX */ + struct ena_ring tx_ring[ENA_MAX_NUM_QUEUES] __rte_cache_aligned; + int tx_ring_size; + + /* RX */ + struct ena_ring rx_ring[ENA_MAX_NUM_QUEUES] __rte_cache_aligned; + int rx_ring_size; + + u16 num_queues; + u16 max_mtu; + + int id_number; + char name[ENA_NAME_MAX_LEN]; + u8 mac_addr[ETHER_ADDR_LEN]; + + void *regs; + void *dev_mem_base; + + struct ena_driver_stats *drv_stats; + enum ena_adapter_state state; + +}; + +#endif /* _ENA_ETHDEV_H_ */ |