1*14b24e2bSVaishali Kulkarni /*
2*14b24e2bSVaishali Kulkarni * CDDL HEADER START
3*14b24e2bSVaishali Kulkarni *
4*14b24e2bSVaishali Kulkarni * The contents of this file are subject to the terms of the
5*14b24e2bSVaishali Kulkarni * Common Development and Distribution License, v.1, (the "License").
6*14b24e2bSVaishali Kulkarni * You may not use this file except in compliance with the License.
7*14b24e2bSVaishali Kulkarni *
8*14b24e2bSVaishali Kulkarni * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9*14b24e2bSVaishali Kulkarni * or http://opensource.org/licenses/CDDL-1.0.
10*14b24e2bSVaishali Kulkarni * See the License for the specific language governing permissions
11*14b24e2bSVaishali Kulkarni * and limitations under the License.
12*14b24e2bSVaishali Kulkarni *
13*14b24e2bSVaishali Kulkarni * When distributing Covered Code, include this CDDL HEADER in each
14*14b24e2bSVaishali Kulkarni * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15*14b24e2bSVaishali Kulkarni * If applicable, add the following below this CDDL HEADER, with the
16*14b24e2bSVaishali Kulkarni * fields enclosed by brackets "[]" replaced with your own identifying
17*14b24e2bSVaishali Kulkarni * information: Portions Copyright [yyyy] [name of copyright owner]
18*14b24e2bSVaishali Kulkarni *
19*14b24e2bSVaishali Kulkarni * CDDL HEADER END
20*14b24e2bSVaishali Kulkarni */
21*14b24e2bSVaishali Kulkarni
22*14b24e2bSVaishali Kulkarni /*
23*14b24e2bSVaishali Kulkarni * Copyright 2014-2017 Cavium, Inc.
24*14b24e2bSVaishali Kulkarni * The contents of this file are subject to the terms of the Common Development
25*14b24e2bSVaishali Kulkarni * and Distribution License, v.1, (the "License").
26*14b24e2bSVaishali Kulkarni
27*14b24e2bSVaishali Kulkarni * You may not use this file except in compliance with the License.
28*14b24e2bSVaishali Kulkarni
29*14b24e2bSVaishali Kulkarni * You can obtain a copy of the License at available
30*14b24e2bSVaishali Kulkarni * at http://opensource.org/licenses/CDDL-1.0
31*14b24e2bSVaishali Kulkarni
32*14b24e2bSVaishali Kulkarni * See the License for the specific language governing permissions and
33*14b24e2bSVaishali Kulkarni * limitations under the License.
34*14b24e2bSVaishali Kulkarni */
35*14b24e2bSVaishali Kulkarni
36*14b24e2bSVaishali Kulkarni #ifndef __ECORE_LL2_H__
37*14b24e2bSVaishali Kulkarni #define __ECORE_LL2_H__
38*14b24e2bSVaishali Kulkarni
39*14b24e2bSVaishali Kulkarni #include "ecore.h"
40*14b24e2bSVaishali Kulkarni #include "ecore_hsi_eth.h"
41*14b24e2bSVaishali Kulkarni #include "ecore_chain.h"
42*14b24e2bSVaishali Kulkarni #include "ecore_hsi_common.h"
43*14b24e2bSVaishali Kulkarni #include "ecore_ll2_api.h"
44*14b24e2bSVaishali Kulkarni #include "ecore_sp_api.h"
45*14b24e2bSVaishali Kulkarni
46*14b24e2bSVaishali Kulkarni /* ECORE LL2: internal structures and functions*/
47*14b24e2bSVaishali Kulkarni #define ECORE_MAX_NUM_OF_LL2_CONNECTIONS (4)
48*14b24e2bSVaishali Kulkarni
ecore_ll2_handle_to_queue_id(struct ecore_hwfn * p_hwfn,u8 handle)49*14b24e2bSVaishali Kulkarni static OSAL_INLINE u8 ecore_ll2_handle_to_queue_id(struct ecore_hwfn *p_hwfn,
50*14b24e2bSVaishali Kulkarni u8 handle)
51*14b24e2bSVaishali Kulkarni {
52*14b24e2bSVaishali Kulkarni return p_hwfn->hw_info.resc_start[ECORE_LL2_QUEUE] + handle;
53*14b24e2bSVaishali Kulkarni }
54*14b24e2bSVaishali Kulkarni
55*14b24e2bSVaishali Kulkarni struct ecore_ll2_rx_packet
56*14b24e2bSVaishali Kulkarni {
57*14b24e2bSVaishali Kulkarni osal_list_entry_t list_entry;
58*14b24e2bSVaishali Kulkarni struct core_rx_bd_with_buff_len *rxq_bd;
59*14b24e2bSVaishali Kulkarni dma_addr_t rx_buf_addr;
60*14b24e2bSVaishali Kulkarni u16 buf_length;
61*14b24e2bSVaishali Kulkarni void *cookie;
62*14b24e2bSVaishali Kulkarni u8 placement_offset;
63*14b24e2bSVaishali Kulkarni u16 parse_flags;
64*14b24e2bSVaishali Kulkarni u16 packet_length;
65*14b24e2bSVaishali Kulkarni u16 vlan;
66*14b24e2bSVaishali Kulkarni u32 opaque_data[2];
67*14b24e2bSVaishali Kulkarni };
68*14b24e2bSVaishali Kulkarni
69*14b24e2bSVaishali Kulkarni struct ecore_ll2_tx_packet
70*14b24e2bSVaishali Kulkarni {
71*14b24e2bSVaishali Kulkarni osal_list_entry_t list_entry;
72*14b24e2bSVaishali Kulkarni u16 bd_used;
73*14b24e2bSVaishali Kulkarni bool notify_fw;
74*14b24e2bSVaishali Kulkarni void *cookie;
75*14b24e2bSVaishali Kulkarni struct {
76*14b24e2bSVaishali Kulkarni struct core_tx_bd *txq_bd;
77*14b24e2bSVaishali Kulkarni dma_addr_t tx_frag;
78*14b24e2bSVaishali Kulkarni u16 frag_len;
79*14b24e2bSVaishali Kulkarni } bds_set[1];
80*14b24e2bSVaishali Kulkarni /* Flexible Array of bds_set determined by max_bds_per_packet */
81*14b24e2bSVaishali Kulkarni };
82*14b24e2bSVaishali Kulkarni
83*14b24e2bSVaishali Kulkarni struct ecore_ll2_rx_queue {
84*14b24e2bSVaishali Kulkarni osal_spinlock_t lock;
85*14b24e2bSVaishali Kulkarni struct ecore_chain rxq_chain;
86*14b24e2bSVaishali Kulkarni struct ecore_chain rcq_chain;
87*14b24e2bSVaishali Kulkarni u8 rx_sb_index;
88*14b24e2bSVaishali Kulkarni bool b_cb_registred;
89*14b24e2bSVaishali Kulkarni __le16 *p_fw_cons;
90*14b24e2bSVaishali Kulkarni osal_list_t active_descq;
91*14b24e2bSVaishali Kulkarni osal_list_t free_descq;
92*14b24e2bSVaishali Kulkarni osal_list_t posting_descq;
93*14b24e2bSVaishali Kulkarni struct ecore_ll2_rx_packet *descq_array;
94*14b24e2bSVaishali Kulkarni void OSAL_IOMEM *set_prod_addr;
95*14b24e2bSVaishali Kulkarni };
96*14b24e2bSVaishali Kulkarni
97*14b24e2bSVaishali Kulkarni struct ecore_ll2_tx_queue {
98*14b24e2bSVaishali Kulkarni osal_spinlock_t lock;
99*14b24e2bSVaishali Kulkarni struct ecore_chain txq_chain;
100*14b24e2bSVaishali Kulkarni u8 tx_sb_index;
101*14b24e2bSVaishali Kulkarni bool b_cb_registred;
102*14b24e2bSVaishali Kulkarni __le16 *p_fw_cons;
103*14b24e2bSVaishali Kulkarni osal_list_t active_descq;
104*14b24e2bSVaishali Kulkarni osal_list_t free_descq;
105*14b24e2bSVaishali Kulkarni osal_list_t sending_descq;
106*14b24e2bSVaishali Kulkarni struct ecore_ll2_tx_packet *descq_array;
107*14b24e2bSVaishali Kulkarni struct ecore_ll2_tx_packet *cur_send_packet;
108*14b24e2bSVaishali Kulkarni struct ecore_ll2_tx_packet cur_completing_packet;
109*14b24e2bSVaishali Kulkarni u16 cur_completing_bd_idx;
110*14b24e2bSVaishali Kulkarni void OSAL_IOMEM *doorbell_addr;
111*14b24e2bSVaishali Kulkarni u16 bds_idx;
112*14b24e2bSVaishali Kulkarni u16 cur_send_frag_num;
113*14b24e2bSVaishali Kulkarni u16 cur_completing_frag_num;
114*14b24e2bSVaishali Kulkarni bool b_completing_packet;
115*14b24e2bSVaishali Kulkarni };
116*14b24e2bSVaishali Kulkarni
117*14b24e2bSVaishali Kulkarni struct ecore_ll2_info {
118*14b24e2bSVaishali Kulkarni osal_mutex_t mutex;
119*14b24e2bSVaishali Kulkarni enum ecore_ll2_conn_type conn_type;
120*14b24e2bSVaishali Kulkarni u32 cid;
121*14b24e2bSVaishali Kulkarni u8 my_id;
122*14b24e2bSVaishali Kulkarni u8 queue_id;
123*14b24e2bSVaishali Kulkarni u8 tx_stats_id;
124*14b24e2bSVaishali Kulkarni bool b_active;
125*14b24e2bSVaishali Kulkarni u16 mtu;
126*14b24e2bSVaishali Kulkarni u8 rx_drop_ttl0_flg;
127*14b24e2bSVaishali Kulkarni u8 rx_vlan_removal_en;
128*14b24e2bSVaishali Kulkarni u8 tx_tc;
129*14b24e2bSVaishali Kulkarni u8 tx_max_bds_per_packet;
130*14b24e2bSVaishali Kulkarni enum core_tx_dest tx_dest;
131*14b24e2bSVaishali Kulkarni enum core_error_handle ai_err_packet_too_big;
132*14b24e2bSVaishali Kulkarni enum core_error_handle ai_err_no_buf;
133*14b24e2bSVaishali Kulkarni u8 gsi_enable;
134*14b24e2bSVaishali Kulkarni u8 tx_stats_en;
135*14b24e2bSVaishali Kulkarni u8 main_func_queue;
136*14b24e2bSVaishali Kulkarni struct ecore_ll2_rx_queue rx_queue;
137*14b24e2bSVaishali Kulkarni struct ecore_ll2_tx_queue tx_queue;
138*14b24e2bSVaishali Kulkarni struct ecore_ll2_cbs cbs;
139*14b24e2bSVaishali Kulkarni };
140*14b24e2bSVaishali Kulkarni
141*14b24e2bSVaishali Kulkarni /**
142*14b24e2bSVaishali Kulkarni * @brief ecore_ll2_alloc - Allocates LL2 connections set
143*14b24e2bSVaishali Kulkarni *
144*14b24e2bSVaishali Kulkarni * @param p_hwfn
145*14b24e2bSVaishali Kulkarni *
146*14b24e2bSVaishali Kulkarni * @return enum _ecore_status_t
147*14b24e2bSVaishali Kulkarni */
148*14b24e2bSVaishali Kulkarni enum _ecore_status_t ecore_ll2_alloc(struct ecore_hwfn *p_hwfn);
149*14b24e2bSVaishali Kulkarni
150*14b24e2bSVaishali Kulkarni /**
151*14b24e2bSVaishali Kulkarni * @brief ecore_ll2_setup - Inits LL2 connections set
152*14b24e2bSVaishali Kulkarni *
153*14b24e2bSVaishali Kulkarni * @param p_hwfn
154*14b24e2bSVaishali Kulkarni *
155*14b24e2bSVaishali Kulkarni */
156*14b24e2bSVaishali Kulkarni void ecore_ll2_setup(struct ecore_hwfn *p_hwfn);
157*14b24e2bSVaishali Kulkarni
158*14b24e2bSVaishali Kulkarni /**
159*14b24e2bSVaishali Kulkarni * @brief ecore_ll2_free - Releases LL2 connections set
160*14b24e2bSVaishali Kulkarni *
161*14b24e2bSVaishali Kulkarni * @param p_hwfn
162*14b24e2bSVaishali Kulkarni *
163*14b24e2bSVaishali Kulkarni */
164*14b24e2bSVaishali Kulkarni void ecore_ll2_free(struct ecore_hwfn *p_hwfn);
165*14b24e2bSVaishali Kulkarni
166*14b24e2bSVaishali Kulkarni #ifndef LINUX_REMOVE
167*14b24e2bSVaishali Kulkarni /**
168*14b24e2bSVaishali Kulkarni * @brief ecore_ll2_get_fragment_of_tx_packet
169*14b24e2bSVaishali Kulkarni *
170*14b24e2bSVaishali Kulkarni * @param p_hwfn
171*14b24e2bSVaishali Kulkarni * @param connection_handle LL2 connection's handle
172*14b24e2bSVaishali Kulkarni * obtained from
173*14b24e2bSVaishali Kulkarni * ecore_ll2_require_connection
174*14b24e2bSVaishali Kulkarni * @param addr
175*14b24e2bSVaishali Kulkarni * @param last_fragment)
176*14b24e2bSVaishali Kulkarni *
177*14b24e2bSVaishali Kulkarni * @return enum _ecore_status_t
178*14b24e2bSVaishali Kulkarni */
179*14b24e2bSVaishali Kulkarni enum _ecore_status_t
180*14b24e2bSVaishali Kulkarni ecore_ll2_get_fragment_of_tx_packet(struct ecore_hwfn *p_hwfn,
181*14b24e2bSVaishali Kulkarni u8 connection_handle,
182*14b24e2bSVaishali Kulkarni dma_addr_t *addr,
183*14b24e2bSVaishali Kulkarni bool *last_fragment);
184*14b24e2bSVaishali Kulkarni #endif
185*14b24e2bSVaishali Kulkarni
186*14b24e2bSVaishali Kulkarni #endif /*__ECORE_LL2_H__*/
187