/* 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_OOO_H
#define _QED_OOO_H
#include <linux/types.h>
#include <linux/list.h>
#include <linux/slab.h>
#include "qed.h"
#define QED_MAX_NUM_ISLES 256
#define QED_MAX_NUM_OOO_HISTORY_ENTRIES 512
#define QED_OOO_LEFT_BUF 0
#define QED_OOO_RIGHT_BUF 1
struct qed_ooo_buffer {
struct list_head list_entry;
void *rx_buffer_virt_addr;
dma_addr_t rx_buffer_phys_addr;
u32 rx_buffer_size;
u16 packet_length;
u16 parse_flags;
u16 vlan;
u8 placement_offset;
};
struct qed_ooo_isle {
struct list_head list_entry;
struct list_head buffers_list;
};
struct qed_ooo_archipelago {
struct list_head isles_list;
};
struct qed_ooo_history {
struct ooo_opaque *p_cqes;
u32 head_idx;
u32 num_of_cqes;
};
struct qed_ooo_info {
struct list_head free_buffers_list;
struct list_head ready_buffers_list;
struct list_head free_isles_list;
struct qed_ooo_archipelago *p_archipelagos_mem;
struct qed_ooo_isle *p_isles_mem;
struct qed_ooo_history ooo_history;
u32 cur_isles_number;
u32 max_isles_number;
u32 gen_isles_number;
u16 max_num_archipelagos;
u16 cid_base;
};
#if IS_ENABLED(CONFIG_QED_OOO)
void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
struct ooo_opaque *p_cqe);
int qed_ooo_alloc(struct qed_hwfn *p_hwfn);
void qed_ooo_setup(struct qed_hwfn *p_hwfn);
void qed_ooo_free(struct qed_hwfn *p_hwfn);
void qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
u32 cid);
void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info);
void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
struct qed_ooo_buffer *p_buffer);
struct qed_ooo_buffer *
qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info);
void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
struct qed_ooo_buffer *p_buffer, u8 on_tail);
struct qed_ooo_buffer *
qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info);
void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
u32 cid, u8 drop_isle, u8 drop_size);
void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
u32 cid,
u8 ooo_isle, struct qed_ooo_buffer *p_buffer);
void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
u32 cid,
u8 ooo_isle,
struct qed_ooo_buffer *p_buffer, u8 buffer_side);
void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info, u32 cid,
u8 left_isle);
#else /* IS_ENABLED(CONFIG_QED_ISCSI) */
static inline void qed_ooo_save_history_entry(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
struct ooo_opaque *p_cqe) {}
static inline int qed_ooo_alloc(struct qed_hwfn *p_hwfn)
{
return -EINVAL;
}
static inline void qed_ooo_setup(struct qed_hwfn *p_hwfn) {}
static inline void qed_ooo_free(struct qed_hwfn *p_hwfn) {}
static inline void
qed_ooo_release_connection_isles(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
u32 cid) {}
static inline void qed_ooo_release_all_isles(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info)
{}
static inline void qed_ooo_put_free_buffer(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
struct qed_ooo_buffer *p_buffer) {}
static inline struct qed_ooo_buffer *
qed_ooo_get_free_buffer(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info) { return NULL; }
static inline void qed_ooo_put_ready_buffer(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
struct qed_ooo_buffer *p_buffer,
u8 on_tail) {}
static inline struct qed_ooo_buffer *
qed_ooo_get_ready_buffer(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info) { return NULL; }
static inline void qed_ooo_delete_isles(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
u32 cid, u8 drop_isle, u8 drop_size) {}
static inline void qed_ooo_add_new_isle(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
u32 cid, u8 ooo_isle,
struct qed_ooo_buffer *p_buffer) {}
static inline void qed_ooo_add_new_buffer(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info,
u32 cid, u8 ooo_isle,
struct qed_ooo_buffer *p_buffer,
u8 buffer_side) {}
static inline void qed_ooo_join_isles(struct qed_hwfn *p_hwfn,
struct qed_ooo_info *p_ooo_info, u32 cid,
u8 left_isle) {}
#endif /* IS_ENABLED(CONFIG_QED_ISCSI) */
#endif
