| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Yuval Mintz | 389 | 79.55% | 4 | 33.33% |
| Michal Kalderon | 65 | 13.29% | 4 | 33.33% |
| Arnd Bergmann | 25 | 5.11% | 1 | 8.33% |
| Ariel Elior | 4 | 0.82% | 1 | 8.33% |
| Tomer Tayar | 4 | 0.82% | 1 | 8.33% |
| Colin Ian King | 2 | 0.41% | 1 | 8.33% |
| Total | 489 | 12 |
/* QLogic qed NIC Driver * Copyright (c) 2015-2017 QLogic Corporation * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * 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. * * 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 _QED_LL2_H #define _QED_LL2_H #include <linux/types.h> #include <linux/kernel.h> #include <linux/list.h> #include <linux/mutex.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <linux/qed/qed_chain.h> #include <linux/qed/qed_ll2_if.h> #include "qed.h" #include "qed_hsi.h" #include "qed_sp.h" #define QED_MAX_NUM_OF_LL2_CONNECTIONS (4) /* LL2 queues handles will be split as follows: * first will be legacy queues, and then the ctx based queues. */ #define QED_MAX_NUM_OF_LL2_CONNS_PF (4) #define QED_MAX_NUM_OF_LEGACY_LL2_CONNS_PF (3) #define QED_MAX_NUM_OF_CTX_LL2_CONNS_PF \ (QED_MAX_NUM_OF_LL2_CONNS_PF - QED_MAX_NUM_OF_LEGACY_LL2_CONNS_PF) #define QED_LL2_LEGACY_CONN_BASE_PF 0 #define QED_LL2_CTX_CONN_BASE_PF QED_MAX_NUM_OF_LEGACY_LL2_CONNS_PF struct qed_ll2_rx_packet { struct list_head list_entry; struct core_rx_bd_with_buff_len *rxq_bd; dma_addr_t rx_buf_addr; u16 buf_length; void *cookie; u8 placement_offset; u16 parse_flags; u16 packet_length; u16 vlan; u32 opaque_data[2]; }; struct qed_ll2_tx_packet { struct list_head list_entry; u16 bd_used; bool notify_fw; void *cookie; /* Flexible Array of bds_set determined by max_bds_per_packet */ struct { struct core_tx_bd *txq_bd; dma_addr_t tx_frag; u16 frag_len; } bds_set[1]; }; struct qed_ll2_rx_queue { /* Lock protecting the Rx queue manipulation */ spinlock_t lock; struct qed_chain rxq_chain; struct qed_chain rcq_chain; u8 rx_sb_index; u8 ctx_based; bool b_cb_registered; __le16 *p_fw_cons; struct list_head active_descq; struct list_head free_descq; struct list_head posting_descq; struct qed_ll2_rx_packet *descq_array; void __iomem *set_prod_addr; struct core_pwm_prod_update_data db_data; }; struct qed_ll2_tx_queue { /* Lock protecting the Tx queue manipulation */ spinlock_t lock; struct qed_chain txq_chain; u8 tx_sb_index; bool b_cb_registered; __le16 *p_fw_cons; struct list_head active_descq; struct list_head free_descq; struct list_head sending_descq; void *descq_mem; /* memory for variable sized qed_ll2_tx_packet*/ struct qed_ll2_tx_packet *cur_send_packet; struct qed_ll2_tx_packet cur_completing_packet; u16 cur_completing_bd_idx; void __iomem *doorbell_addr; struct core_db_data db_msg; u16 bds_idx; u16 cur_send_frag_num; u16 cur_completing_frag_num; bool b_completing_packet; }; struct qed_ll2_info { /* Lock protecting the state of LL2 */ struct mutex mutex; struct qed_ll2_acquire_data_inputs input; u32 cid; u8 my_id; u8 queue_id; u8 tx_stats_id; bool b_active; enum core_tx_dest tx_dest; u8 tx_stats_en; bool main_func_queue; struct qed_ll2_rx_queue rx_queue; struct qed_ll2_tx_queue tx_queue; struct qed_ll2_cbs cbs; }; /** * @brief qed_ll2_acquire_connection - allocate resources, * starts rx & tx (if relevant) queues pair. Provides * connecion handler as output parameter. * * * @param cxt - pointer to the hw-function [opaque to some] * @param data - describes connection parameters * @return int */ int qed_ll2_acquire_connection(void *cxt, struct qed_ll2_acquire_data *data); /** * @brief qed_ll2_establish_connection - start previously * allocated LL2 queues pair * * @param cxt - pointer to the hw-function [opaque to some] * @param p_ptt * @param connection_handle LL2 connection's handle obtained from * qed_ll2_require_connection * * @return 0 on success, failure otherwise */ int qed_ll2_establish_connection(void *cxt, u8 connection_handle); /** * @brief qed_ll2_post_rx_buffers - submit buffers to LL2 Rx queue. * * @param cxt - pointer to the hw-function [opaque to some] * @param connection_handle LL2 connection's handle obtained from * qed_ll2_require_connection * @param addr rx (physical address) buffers to submit * @param cookie * @param notify_fw produce corresponding Rx BD immediately * * @return 0 on success, failure otherwise */ int qed_ll2_post_rx_buffer(void *cxt, u8 connection_handle, dma_addr_t addr, u16 buf_len, void *cookie, u8 notify_fw); /** * @brief qed_ll2_prepare_tx_packet - request for start Tx BD * to prepare Tx packet submission to FW. * * @param cxt - pointer to the hw-function [opaque to some] * @param connection_handle * @param pkt - info regarding the tx packet * @param notify_fw - issue doorbell to fw for this packet * * @return 0 on success, failure otherwise */ int qed_ll2_prepare_tx_packet(void *cxt, u8 connection_handle, struct qed_ll2_tx_pkt_info *pkt, bool notify_fw); /** * @brief qed_ll2_release_connection - releases resources * allocated for LL2 connection * * @param cxt - pointer to the hw-function [opaque to some] * @param connection_handle LL2 connection's handle obtained from * qed_ll2_require_connection */ void qed_ll2_release_connection(void *cxt, u8 connection_handle); /** * @brief qed_ll2_set_fragment_of_tx_packet - provides fragments to fill * Tx BD of BDs requested by * qed_ll2_prepare_tx_packet * * @param cxt - pointer to the hw-function [opaque to some] * @param connection_handle LL2 connection's handle * obtained from * qed_ll2_require_connection * @param addr * @param nbytes * * @return 0 on success, failure otherwise */ int qed_ll2_set_fragment_of_tx_packet(void *cxt, u8 connection_handle, dma_addr_t addr, u16 nbytes); /** * @brief qed_ll2_terminate_connection - stops Tx/Rx queues * * * @param cxt - pointer to the hw-function [opaque to some] * @param connection_handle LL2 connection's handle * obtained from * qed_ll2_require_connection * * @return 0 on success, failure otherwise */ int qed_ll2_terminate_connection(void *cxt, u8 connection_handle); /** * @brief qed_ll2_get_stats - get LL2 queue's statistics * * * @param cxt - pointer to the hw-function [opaque to some] * @param connection_handle LL2 connection's handle obtained from * qed_ll2_require_connection * @param p_stats * * @return 0 on success, failure otherwise */ int qed_ll2_get_stats(void *cxt, u8 connection_handle, struct qed_ll2_stats *p_stats); /** * @brief qed_ll2_alloc - Allocates LL2 connections set * * @param p_hwfn * * @return int */ int qed_ll2_alloc(struct qed_hwfn *p_hwfn); /** * @brief qed_ll2_setup - Inits LL2 connections set * * @param p_hwfn * */ void qed_ll2_setup(struct qed_hwfn *p_hwfn); /** * @brief qed_ll2_free - Releases LL2 connections set * * @param p_hwfn * */ void qed_ll2_free(struct qed_hwfn *p_hwfn); #endif
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