1 /* QLogic qed NIC Driver
2 * Copyright (c) 2015-2017 QLogic Corporation
4 * This software is available to you under a choice of one of two
5 * licenses. You may choose to be licensed under the terms of the GNU
6 * General Public License (GPL) Version 2, available from the file
7 * COPYING in the main directory of this source tree, or the
8 * OpenIB.org BSD license below:
10 * Redistribution and use in source and binary forms, with or
11 * without modification, are permitted provided that the following
14 * - Redistributions of source code must retain the above
15 * copyright notice, this list of conditions and the following
18 * - Redistributions in binary form must reproduce the above
19 * copyright notice, this list of conditions and the following
20 * disclaimer in the documentation and /or other materials
21 * provided with the distribution.
23 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
24 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
25 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
26 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
27 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
28 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
29 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
36 #include <linux/types.h>
37 #include <linux/slab.h>
38 #include <linux/qed/qed_if.h>
45 enum protocol_type type;
48 #define MAX_TID_BLOCKS 512
51 u32 num_tids_per_block;
53 u8 *blocks[MAX_TID_BLOCKS]; /* 4K */
57 * @brief qedo_cid_get_cxt_info - Returns the context info for a specific cid
61 * @param p_info in/out
65 int qed_cxt_get_cid_info(struct qed_hwfn *p_hwfn,
66 struct qed_cxt_info *p_info);
69 * @brief qed_cxt_get_tid_mem_info
76 int qed_cxt_get_tid_mem_info(struct qed_hwfn *p_hwfn,
77 struct qed_tid_mem *p_info);
79 #define QED_CXT_ISCSI_TID_SEG PROTOCOLID_ISCSI
80 #define QED_CXT_ROCE_TID_SEG PROTOCOLID_ROCE
81 #define QED_CXT_FCOE_TID_SEG PROTOCOLID_FCOE
82 enum qed_cxt_elem_type {
88 u32 qed_cxt_get_proto_cid_count(struct qed_hwfn *p_hwfn,
89 enum protocol_type type, u32 *vf_cid);
92 * @brief qed_cxt_set_pf_params - Set the PF params for cxt init
95 * @param rdma_tasks - requested maximum
98 int qed_cxt_set_pf_params(struct qed_hwfn *p_hwfn, u32 rdma_tasks);
101 * @brief qed_cxt_cfg_ilt_compute - compute ILT init parameters
108 int qed_cxt_cfg_ilt_compute(struct qed_hwfn *p_hwfn, u32 *last_line);
111 * @brief qed_cxt_cfg_ilt_compute_excess - how many lines can be decreased
116 u32 qed_cxt_cfg_ilt_compute_excess(struct qed_hwfn *p_hwfn, u32 used_lines);
119 * @brief qed_cxt_mngr_alloc - Allocate and init the context manager struct
125 int qed_cxt_mngr_alloc(struct qed_hwfn *p_hwfn);
128 * @brief qed_cxt_mngr_free
132 void qed_cxt_mngr_free(struct qed_hwfn *p_hwfn);
135 * @brief qed_cxt_tables_alloc - Allocate ILT shadow, Searcher T2, acquired map
141 int qed_cxt_tables_alloc(struct qed_hwfn *p_hwfn);
144 * @brief qed_cxt_mngr_setup - Reset the acquired CIDs
148 void qed_cxt_mngr_setup(struct qed_hwfn *p_hwfn);
151 * @brief qed_cxt_hw_init_common - Initailze ILT and DQ, common phase, per path.
157 void qed_cxt_hw_init_common(struct qed_hwfn *p_hwfn);
160 * @brief qed_cxt_hw_init_pf - Initailze ILT and DQ, PF phase, per path.
165 void qed_cxt_hw_init_pf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
168 * @brief qed_qm_init_pf - Initailze the QM PF phase, per path
173 void qed_qm_init_pf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
176 * @brief Reconfigures QM pf on the fly
183 int qed_qm_reconf(struct qed_hwfn *p_hwfn, struct qed_ptt *p_ptt);
185 #define QED_CXT_PF_CID (0xff)
188 * @brief qed_cxt_release - Release a cid
193 void qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid);
196 * @brief qed_cxt_release - Release a cid belonging to a vf-queue
200 * @param vfid - engine relative index. QED_CXT_PF_CID if belongs to PF
202 void _qed_cxt_release_cid(struct qed_hwfn *p_hwfn, u32 cid, u8 vfid);
205 * @brief qed_cxt_acquire - Acquire a new cid of a specific protocol type
213 int qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn,
214 enum protocol_type type, u32 *p_cid);
217 * @brief _qed_cxt_acquire - Acquire a new cid of a specific protocol type
223 * @param vfid - engine relative index. QED_CXT_PF_CID if belongs to PF
227 int _qed_cxt_acquire_cid(struct qed_hwfn *p_hwfn,
228 enum protocol_type type, u32 *p_cid, u8 vfid);
230 int qed_cxt_dynamic_ilt_alloc(struct qed_hwfn *p_hwfn,
231 enum qed_cxt_elem_type elem_type, u32 iid);
232 u32 qed_cxt_get_proto_tid_count(struct qed_hwfn *p_hwfn,
233 enum protocol_type type);
234 u32 qed_cxt_get_proto_cid_start(struct qed_hwfn *p_hwfn,
235 enum protocol_type type);
236 int qed_cxt_free_proto_ilt(struct qed_hwfn *p_hwfn, enum protocol_type proto);
238 #define QED_CTX_WORKING_MEM 0
239 #define QED_CTX_FL_MEM 1
240 int qed_cxt_get_task_ctx(struct qed_hwfn *p_hwfn,
241 u32 tid, u8 ctx_type, void **task_ctx);