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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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f436baf326
Out of order flow is not working for iWARP.
This patch got cut out from initial series that added out
of order support for iWARP.
Make out of order code common for iWARP and iSCSI.
Add new configuration option CONFIG_QED_OOO. Set by
qedr and qedi Kconfigs.
Fixes: d1abfd0b4e ("qed: Add iWARP out of order support")
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Manish Rangankar <Manish.Rangankar@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
199 lines
6.0 KiB
C
199 lines
6.0 KiB
C
/* 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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