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1/* SPDX-License-Identifier: GPL-2.0-only */
2/*
3 * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
4 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
5 */
6
7#ifndef _ENIC_RES_H_
8#define _ENIC_RES_H_
9
10#include "wq_enet_desc.h"
11#include "rq_enet_desc.h"
12#include "vnic_wq.h"
13#include "vnic_rq.h"
14
15#define ENIC_MIN_WQ_DESCS 64
16#define ENIC_MAX_WQ_DESCS 4096
17#define ENIC_MIN_RQ_DESCS 64
18#define ENIC_MAX_RQ_DESCS 4096
19
20#define ENIC_MIN_MTU ETH_MIN_MTU
21#define ENIC_MAX_MTU 9000
22
23#define ENIC_MULTICAST_PERFECT_FILTERS 32
24#define ENIC_UNICAST_PERFECT_FILTERS 32
25
26#define ENIC_NON_TSO_MAX_DESC 16
27
28#define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
29
30static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
31 void *os_buf, dma_addr_t dma_addr, unsigned int len,
32 unsigned int mss_or_csum_offset, unsigned int hdr_len,
33 int vlan_tag_insert, unsigned int vlan_tag,
34 int offload_mode, int cq_entry, int sop, int eop, int loopback)
35{
36 struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
37 u8 desc_skip_cnt = 1;
38 u8 compressed_send = 0;
39 u64 wrid = 0;
40
41 wq_enet_desc_enc(desc,
42 (u64)dma_addr | VNIC_PADDR_TARGET,
43 (u16)len,
44 (u16)mss_or_csum_offset,
45 (u16)hdr_len, (u8)offload_mode,
46 (u8)eop, (u8)cq_entry,
47 0, /* fcoe_encap */
48 (u8)vlan_tag_insert,
49 (u16)vlan_tag,
50 (u8)loopback);
51
52 vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop, desc_skip_cnt,
53 (u8)cq_entry, compressed_send, wrid);
54}
55
56static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
57 void *os_buf, dma_addr_t dma_addr, unsigned int len,
58 int eop, int loopback)
59{
60 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
61 0, 0, 0, 0, 0,
62 eop, 0 /* !SOP */, eop, loopback);
63}
64
65static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf,
66 dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
67 unsigned int vlan_tag, int eop, int loopback)
68{
69 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
70 0, 0, vlan_tag_insert, vlan_tag,
71 WQ_ENET_OFFLOAD_MODE_CSUM,
72 eop, 1 /* SOP */, eop, loopback);
73}
74
75static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
76 void *os_buf, dma_addr_t dma_addr, unsigned int len,
77 int ip_csum, int tcpudp_csum, int vlan_tag_insert,
78 unsigned int vlan_tag, int eop, int loopback)
79{
80 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
81 (ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
82 0, vlan_tag_insert, vlan_tag,
83 WQ_ENET_OFFLOAD_MODE_CSUM,
84 eop, 1 /* SOP */, eop, loopback);
85}
86
87static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
88 void *os_buf, dma_addr_t dma_addr, unsigned int len,
89 unsigned int csum_offset, unsigned int hdr_len,
90 int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
91{
92 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
93 csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
94 WQ_ENET_OFFLOAD_MODE_CSUM_L4,
95 eop, 1 /* SOP */, eop, loopback);
96}
97
98static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
99 void *os_buf, dma_addr_t dma_addr, unsigned int len,
100 unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
101 unsigned int vlan_tag, int eop, int loopback)
102{
103 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
104 mss, hdr_len, vlan_tag_insert, vlan_tag,
105 WQ_ENET_OFFLOAD_MODE_TSO,
106 eop, 1 /* SOP */, eop, loopback);
107}
108
109static inline void enic_queue_rq_desc(struct vnic_rq *rq,
110 void *os_buf, unsigned int os_buf_index,
111 dma_addr_t dma_addr, unsigned int len)
112{
113 struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
114 u64 wrid = 0;
115 u8 type = os_buf_index ?
116 RQ_ENET_TYPE_NOT_SOP : RQ_ENET_TYPE_ONLY_SOP;
117
118 rq_enet_desc_enc(desc,
119 (u64)dma_addr | VNIC_PADDR_TARGET,
120 type, (u16)len);
121
122 vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len, wrid);
123}
124
125struct enic;
126
127int enic_get_vnic_config(struct enic *);
128int enic_add_vlan(struct enic *enic, u16 vlanid);
129int enic_del_vlan(struct enic *enic, u16 vlanid);
130int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
131 u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
132 u8 ig_vlan_strip_en);
133int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
134int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
135void enic_get_res_counts(struct enic *enic);
136void enic_init_vnic_resources(struct enic *enic);
137int enic_alloc_vnic_resources(struct enic *);
138void enic_free_vnic_resources(struct enic *);
139
140#endif /* _ENIC_RES_H_ */
1/*
2 * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
3 * Copyright 2007 Nuova Systems, Inc. All rights reserved.
4 *
5 * This program is free software; you may redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation; version 2 of the License.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
10 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
11 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
12 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
13 * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
14 * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
15 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
16 * SOFTWARE.
17 *
18 */
19
20#ifndef _ENIC_RES_H_
21#define _ENIC_RES_H_
22
23#include "wq_enet_desc.h"
24#include "rq_enet_desc.h"
25#include "vnic_wq.h"
26#include "vnic_rq.h"
27
28#define ENIC_MIN_WQ_DESCS 64
29#define ENIC_MAX_WQ_DESCS 4096
30#define ENIC_MIN_RQ_DESCS 64
31#define ENIC_MAX_RQ_DESCS 4096
32
33#define ENIC_MIN_MTU 68
34#define ENIC_MAX_MTU 9000
35
36#define ENIC_MULTICAST_PERFECT_FILTERS 32
37#define ENIC_UNICAST_PERFECT_FILTERS 32
38
39#define ENIC_NON_TSO_MAX_DESC 16
40
41#define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
42
43static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
44 void *os_buf, dma_addr_t dma_addr, unsigned int len,
45 unsigned int mss_or_csum_offset, unsigned int hdr_len,
46 int vlan_tag_insert, unsigned int vlan_tag,
47 int offload_mode, int cq_entry, int sop, int eop, int loopback)
48{
49 struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
50 u8 desc_skip_cnt = 1;
51 u8 compressed_send = 0;
52 u64 wrid = 0;
53
54 wq_enet_desc_enc(desc,
55 (u64)dma_addr | VNIC_PADDR_TARGET,
56 (u16)len,
57 (u16)mss_or_csum_offset,
58 (u16)hdr_len, (u8)offload_mode,
59 (u8)eop, (u8)cq_entry,
60 0, /* fcoe_encap */
61 (u8)vlan_tag_insert,
62 (u16)vlan_tag,
63 (u8)loopback);
64
65 vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop, desc_skip_cnt,
66 (u8)cq_entry, compressed_send, wrid);
67}
68
69static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
70 void *os_buf, dma_addr_t dma_addr, unsigned int len,
71 int eop, int loopback)
72{
73 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
74 0, 0, 0, 0, 0,
75 eop, 0 /* !SOP */, eop, loopback);
76}
77
78static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf,
79 dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
80 unsigned int vlan_tag, int eop, int loopback)
81{
82 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
83 0, 0, vlan_tag_insert, vlan_tag,
84 WQ_ENET_OFFLOAD_MODE_CSUM,
85 eop, 1 /* SOP */, eop, loopback);
86}
87
88static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
89 void *os_buf, dma_addr_t dma_addr, unsigned int len,
90 int ip_csum, int tcpudp_csum, int vlan_tag_insert,
91 unsigned int vlan_tag, int eop, int loopback)
92{
93 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
94 (ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
95 0, vlan_tag_insert, vlan_tag,
96 WQ_ENET_OFFLOAD_MODE_CSUM,
97 eop, 1 /* SOP */, eop, loopback);
98}
99
100static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
101 void *os_buf, dma_addr_t dma_addr, unsigned int len,
102 unsigned int csum_offset, unsigned int hdr_len,
103 int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
104{
105 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
106 csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
107 WQ_ENET_OFFLOAD_MODE_CSUM_L4,
108 eop, 1 /* SOP */, eop, loopback);
109}
110
111static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
112 void *os_buf, dma_addr_t dma_addr, unsigned int len,
113 unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
114 unsigned int vlan_tag, int eop, int loopback)
115{
116 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
117 mss, hdr_len, vlan_tag_insert, vlan_tag,
118 WQ_ENET_OFFLOAD_MODE_TSO,
119 eop, 1 /* SOP */, eop, loopback);
120}
121
122static inline void enic_queue_rq_desc(struct vnic_rq *rq,
123 void *os_buf, unsigned int os_buf_index,
124 dma_addr_t dma_addr, unsigned int len)
125{
126 struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
127 u64 wrid = 0;
128 u8 type = os_buf_index ?
129 RQ_ENET_TYPE_NOT_SOP : RQ_ENET_TYPE_ONLY_SOP;
130
131 rq_enet_desc_enc(desc,
132 (u64)dma_addr | VNIC_PADDR_TARGET,
133 type, (u16)len);
134
135 vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len, wrid);
136}
137
138struct enic;
139
140int enic_get_vnic_config(struct enic *);
141int enic_add_vlan(struct enic *enic, u16 vlanid);
142int enic_del_vlan(struct enic *enic, u16 vlanid);
143int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
144 u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
145 u8 ig_vlan_strip_en);
146int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
147int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
148void enic_get_res_counts(struct enic *enic);
149void enic_init_vnic_resources(struct enic *enic);
150int enic_alloc_vnic_resources(struct enic *);
151void enic_free_vnic_resources(struct enic *);
152
153#endif /* _ENIC_RES_H_ */