/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, v.1, (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://opensource.org/licenses/CDDL-1.0. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2014-2017 Cavium, Inc. * The contents of this file are subject to the terms of the Common Development * and Distribution License, v.1, (the "License"). * You may not use this file except in compliance with the License. * You can obtain a copy of the License at available * at http://opensource.org/licenses/CDDL-1.0 * See the License for the specific language governing permissions and * limitations under the License. */ #ifndef __ECORE_LL2_API_H__ #define __ECORE_LL2_API_H__ /* ECORE LL2 API: called by ECORE's upper level client */ /* must be the asme as core_rx_conn_type */ #ifndef __EXTRACT__LINUX__ enum ecore_ll2_conn_type { ECORE_LL2_TYPE_FCOE /* FCoE L2 connection */, ECORE_LL2_TYPE_ISCSI /* Iscsi L2 connection */, ECORE_LL2_TYPE_TEST /* Eth TB test connection */, ECORE_LL2_TYPE_OOO /* Iscsi OOO L2 connection */, ECORE_LL2_TYPE_TOE /* toe L2 connection */, ECORE_LL2_TYPE_ROCE /* RoCE L2 connection */, ECORE_LL2_TYPE_IWARP, MAX_ECORE_LL2_RX_CONN_TYPE }; enum ecore_ll2_roce_flavor_type { ECORE_LL2_ROCE, /* use this as default or d/c */ ECORE_LL2_RROCE, MAX_ECORE_LL2_ROCE_FLAVOR_TYPE }; enum ecore_ll2_tx_dest { ECORE_LL2_TX_DEST_NW /* Light L2 TX Destination to the Network */, ECORE_LL2_TX_DEST_LB /* Light L2 TX Destination to the Loopback */, ECORE_LL2_TX_DEST_DROP /* Light L2 Drop the TX packet */, ECORE_LL2_TX_DEST_MAX }; enum ecore_ll2_error_handle { ECORE_LL2_DROP_PACKET /* If error occurs drop packet */, ECORE_LL2_DO_NOTHING /* If error occurs do nothing */, ECORE_LL2_ASSERT /* If error occurs assert */, }; struct ecore_ll2_stats { u64 gsi_invalid_hdr; u64 gsi_invalid_pkt_length; u64 gsi_unsupported_pkt_typ; u64 gsi_crcchksm_error; u64 packet_too_big_discard; u64 no_buff_discard; u64 rcv_ucast_bytes; u64 rcv_mcast_bytes; u64 rcv_bcast_bytes; u64 rcv_ucast_pkts; u64 rcv_mcast_pkts; u64 rcv_bcast_pkts; u64 sent_ucast_bytes; u64 sent_mcast_bytes; u64 sent_bcast_bytes; u64 sent_ucast_pkts; u64 sent_mcast_pkts; u64 sent_bcast_pkts; }; struct ecore_ll2_comp_rx_data { u8 connection_handle; void *cookie; dma_addr_t rx_buf_addr; u16 parse_flags; u16 err_flags; u16 vlan; bool b_last_packet; union { u8 placement_offset; u8 data_length_error; } u; union { u16 packet_length; u16 data_length; } length; u32 opaque_data_0; /* src_mac_addr_hi */ u32 opaque_data_1; /* src_mac_addr_lo */ /* GSI only */ u32 gid_dst[4]; u16 qp_id; }; typedef void (*ecore_ll2_complete_rx_packet_cb)(void *cxt, struct ecore_ll2_comp_rx_data *data); typedef void (*ecore_ll2_release_rx_packet_cb)(void *cxt, u8 connection_handle, void *cookie, dma_addr_t rx_buf_addr, bool b_last_packet); typedef void (*ecore_ll2_complete_tx_packet_cb)(void *cxt, u8 connection_handle, void *cookie, dma_addr_t first_frag_addr, bool b_last_fragment, bool b_last_packet); typedef void (*ecore_ll2_release_tx_packet_cb)(void *cxt, u8 connection_handle, void *cookie, dma_addr_t first_frag_addr, bool b_last_fragment, bool b_last_packet); typedef void (*ecore_ll2_slowpath_cb)(void *cxt, u8 connection_handle, u32 opaque_data_0, u32 opaque_data_1); struct ecore_ll2_cbs { ecore_ll2_complete_rx_packet_cb rx_comp_cb; ecore_ll2_release_rx_packet_cb rx_release_cb; ecore_ll2_complete_tx_packet_cb tx_comp_cb; ecore_ll2_release_tx_packet_cb tx_release_cb; ecore_ll2_slowpath_cb slowpath_cb; void *cookie; }; struct ecore_ll2_acquire_data { enum ecore_ll2_conn_type conn_type; u16 mtu; /* Maximum bytes that can be placed on a BD*/ u16 rx_num_desc; /* Relevant only for OOO connection if 0 OOO rx buffers=2*rx_num_desc */ u16 rx_num_ooo_buffers; u8 rx_drop_ttl0_flg; /* if set, 802.1q tags will be removed and copied to CQE */ u8 rx_vlan_removal_en; u16 tx_num_desc; u8 tx_max_bds_per_packet; u8 tx_tc; enum ecore_ll2_tx_dest tx_dest; enum ecore_ll2_error_handle ai_err_packet_too_big; enum ecore_ll2_error_handle ai_err_no_buf; u8 secondary_queue; u8 gsi_enable; /* Output container for LL2 connection's handle */ u8 *p_connection_handle; const struct ecore_ll2_cbs *cbs; }; #endif /** * @brief ecore_ll2_acquire_connection - allocate resources, * starts rx & tx (if relevant) queues pair. Provides * connecion handler as output parameter. * * * @param p_hwfn * @param data - describes connection parameters * @return enum _ecore_status_t */ enum _ecore_status_t ecore_ll2_acquire_connection(void *cxt, struct ecore_ll2_acquire_data *data); /** * @brief ecore_ll2_establish_connection - start previously * allocated LL2 queues pair * * @param p_hwfn * @param p_ptt * @param connection_handle LL2 connection's handle * obtained from * ecore_ll2_require_connection * * @return enum _ecore_status_t */ enum _ecore_status_t ecore_ll2_establish_connection(void *cxt, u8 connection_handle); /** * @brief ecore_ll2_post_rx_buffers - submit buffers to LL2 RxQ. * * @param p_hwfn * @param connection_handle LL2 connection's handle * obtained from * ecore_ll2_require_connection * @param addr rx (physical address) buffers to * submit * @param cookie * @param notify_fw produce corresponding Rx BD * immediately * * @return enum _ecore_status_t */ enum _ecore_status_t ecore_ll2_post_rx_buffer(void *cxt, u8 connection_handle, dma_addr_t addr, u16 buf_len, void *cookie, u8 notify_fw); #ifndef __EXTRACT__LINUX__ struct ecore_ll2_tx_pkt_info { u8 num_of_bds; u16 vlan; u8 bd_flags; u16 l4_hdr_offset_w; /* from start of packet */ enum ecore_ll2_tx_dest tx_dest; enum ecore_ll2_roce_flavor_type ecore_roce_flavor; dma_addr_t first_frag; u16 first_frag_len; bool enable_ip_cksum; bool enable_l4_cksum; bool calc_ip_len; void *cookie; }; #endif /** * @brief ecore_ll2_prepare_tx_packet - request for start Tx BD * to prepare Tx packet submission to FW. * * * @param p_hwfn * @param pkt - info regarding the tx packet * @param notify_fw - issue doorbell to fw for this packet * * @return enum _ecore_status_t */ enum _ecore_status_t ecore_ll2_prepare_tx_packet( void *cxt, u8 connection_handle, struct ecore_ll2_tx_pkt_info *pkt, bool notify_fw); /** * @brief ecore_ll2_release_connection - releases resources * allocated for LL2 connection * * @param p_hwfn * @param connection_handle LL2 connection's handle * obtained from * ecore_ll2_require_connection */ void ecore_ll2_release_connection(void *cxt, u8 connection_handle); /** * @brief ecore_ll2_set_fragment_of_tx_packet - provides * fragments to fill Tx BD of BDs requested by * ecore_ll2_prepare_tx_packet.. * * * @param p_hwfn * @param connection_handle LL2 connection's handle * obtained from * ecore_ll2_require_connection * @param addr * @param nbytes * * @return enum _ecore_status_t */ enum _ecore_status_t ecore_ll2_set_fragment_of_tx_packet(void *cxt, u8 connection_handle, dma_addr_t addr, u16 nbytes); /** * @brief ecore_ll2_terminate_connection - stops Tx/Rx queues * * * @param p_hwfn * @param connection_handle LL2 connection's handle * obtained from * ecore_ll2_require_connection * * @return enum _ecore_status_t */ enum _ecore_status_t ecore_ll2_terminate_connection(void *cxt, u8 connection_handle); /** * @brief ecore_ll2_get_stats - get LL2 queue's statistics * * * @param p_hwfn * @param connection_handle LL2 connection's handle * obtained from * ecore_ll2_require_connection * @param p_stats * * @return enum _ecore_status_t */ enum _ecore_status_t ecore_ll2_get_stats(void *cxt, u8 connection_handle, struct ecore_ll2_stats *p_stats); #endif
