199 lines
6 KiB
C
199 lines
6 KiB
C
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/* QLogic qed NIC Driver
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* Copyright (c) 2015-2017 QLogic Corporation
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and /or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef _QED_OOO_H
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#define _QED_OOO_H
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#include <linux/types.h>
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#include <linux/list.h>
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#include <linux/slab.h>
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#include "qed.h"
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#define QED_MAX_NUM_ISLES 256
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#define QED_MAX_NUM_OOO_HISTORY_ENTRIES 512
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#define QED_OOO_LEFT_BUF 0
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#define QED_OOO_RIGHT_BUF 1
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struct qed_ooo_buffer {
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struct list_head list_entry;
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void *rx_buffer_virt_addr;
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dma_addr_t rx_buffer_phys_addr;
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u32 rx_buffer_size;
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u16 packet_length;
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u16 parse_flags;
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u16 vlan;
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u8 placement_offset;
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};
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struct qed_ooo_isle {
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struct list_head list_entry;
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struct list_head buffers_list;
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};
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struct qed_ooo_archipelago {
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struct list_head isles_list;
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};
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struct qed_ooo_history {
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struct ooo_opaque *p_cqes;
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u32 head_idx;
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u32 num_of_cqes;
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};
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struct qed_ooo_info {
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struct list_head free_buffers_list;
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struct list_head ready_buffers_list;
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struct list_head free_isles_list;
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struct qed_ooo_archipelago *p_archipelagos_mem;
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struct qed_ooo_isle *p_isles_mem;
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struct qed_ooo_history ooo_history;
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u32 cur_isles_number;
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u32 max_isles_number;
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u32 gen_isles_number;
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u16 max_num_archipelagos;
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u16 cid_base;
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};
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#if IS_ENABLED(CONFIG_QED_OOO)
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void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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struct ooo_opaque *p_cqe);
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int qed_ooo_alloc(struct qed_hwfn *p_hwfn);
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void qed_ooo_setup(struct qed_hwfn *p_hwfn);
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void qed_ooo_free(struct qed_hwfn *p_hwfn);
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void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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u32 cid);
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void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info);
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void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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struct qed_ooo_buffer *p_buffer);
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struct qed_ooo_buffer *
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qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info);
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void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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struct qed_ooo_buffer *p_buffer, u8 on_tail);
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struct qed_ooo_buffer *
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qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info);
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void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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u32 cid, u8 drop_isle, u8 drop_size);
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void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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u32 cid,
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u8 ooo_isle, struct qed_ooo_buffer *p_buffer);
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void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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u32 cid,
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u8 ooo_isle,
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struct qed_ooo_buffer *p_buffer, u8 buffer_side);
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void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info, u32 cid,
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u8 left_isle);
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#else /* IS_ENABLED(CONFIG_QED_ISCSI) */
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static inline void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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struct ooo_opaque *p_cqe) {}
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static inline int qed_ooo_alloc(struct qed_hwfn *p_hwfn)
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{
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return -EINVAL;
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}
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static inline void qed_ooo_setup(struct qed_hwfn *p_hwfn) {}
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static inline void qed_ooo_free(struct qed_hwfn *p_hwfn) {}
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static inline void
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qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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u32 cid) {}
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static inline void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info)
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{}
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static inline void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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struct qed_ooo_buffer *p_buffer) {}
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static inline struct qed_ooo_buffer *
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qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info) { return NULL; }
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static inline void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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struct qed_ooo_buffer *p_buffer,
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u8 on_tail) {}
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static inline struct qed_ooo_buffer *
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qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info) { return NULL; }
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static inline void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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u32 cid, u8 drop_isle, u8 drop_size) {}
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static inline void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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u32 cid, u8 ooo_isle,
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struct qed_ooo_buffer *p_buffer) {}
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static inline void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info,
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u32 cid, u8 ooo_isle,
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struct qed_ooo_buffer *p_buffer,
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u8 buffer_side) {}
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static inline void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
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struct qed_ooo_info *p_ooo_info, u32 cid,
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u8 left_isle) {}
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#endif /* IS_ENABLED(CONFIG_QED_ISCSI) */
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#endif
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