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
enic_queue_wq_desc_ex(struct vnic_wq * wq,void * os_buf,dma_addr_t dma_addr,unsigned int len,unsigned int mss_or_csum_offset,unsigned int hdr_len,int vlan_tag_insert,unsigned int vlan_tag,int offload_mode,int cq_entry,int sop,int eop,int loopback)43 static 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
51 wq_enet_desc_enc(desc,
52 (u64)dma_addr | VNIC_PADDR_TARGET,
53 (u16)len,
54 (u16)mss_or_csum_offset,
55 (u16)hdr_len, (u8)offload_mode,
56 (u8)eop, (u8)cq_entry,
57 0, /* fcoe_encap */
58 (u8)vlan_tag_insert,
59 (u16)vlan_tag,
60 (u8)loopback);
61
62 vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop);
63 }
64
enic_queue_wq_desc_cont(struct vnic_wq * wq,void * os_buf,dma_addr_t dma_addr,unsigned int len,int eop,int loopback)65 static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
66 void *os_buf, dma_addr_t dma_addr, unsigned int len,
67 int eop, int loopback)
68 {
69 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
70 0, 0, 0, 0, 0,
71 eop, 0 /* !SOP */, eop, loopback);
72 }
73
enic_queue_wq_desc(struct vnic_wq * wq,void * os_buf,dma_addr_t dma_addr,unsigned int len,int vlan_tag_insert,unsigned int vlan_tag,int eop,int loopback)74 static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf,
75 dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
76 unsigned int vlan_tag, int eop, int loopback)
77 {
78 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
79 0, 0, vlan_tag_insert, vlan_tag,
80 WQ_ENET_OFFLOAD_MODE_CSUM,
81 eop, 1 /* SOP */, eop, loopback);
82 }
83
enic_queue_wq_desc_csum(struct vnic_wq * wq,void * os_buf,dma_addr_t dma_addr,unsigned int len,int ip_csum,int tcpudp_csum,int vlan_tag_insert,unsigned int vlan_tag,int eop,int loopback)84 static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
85 void *os_buf, dma_addr_t dma_addr, unsigned int len,
86 int ip_csum, int tcpudp_csum, int vlan_tag_insert,
87 unsigned int vlan_tag, int eop, int loopback)
88 {
89 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
90 (ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
91 0, vlan_tag_insert, vlan_tag,
92 WQ_ENET_OFFLOAD_MODE_CSUM,
93 eop, 1 /* SOP */, eop, loopback);
94 }
95
enic_queue_wq_desc_csum_l4(struct vnic_wq * wq,void * os_buf,dma_addr_t dma_addr,unsigned int len,unsigned int csum_offset,unsigned int hdr_len,int vlan_tag_insert,unsigned int vlan_tag,int eop,int loopback)96 static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
97 void *os_buf, dma_addr_t dma_addr, unsigned int len,
98 unsigned int csum_offset, unsigned int hdr_len,
99 int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
100 {
101 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
102 csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
103 WQ_ENET_OFFLOAD_MODE_CSUM_L4,
104 eop, 1 /* SOP */, eop, loopback);
105 }
106
enic_queue_wq_desc_tso(struct vnic_wq * wq,void * os_buf,dma_addr_t dma_addr,unsigned int len,unsigned int mss,unsigned int hdr_len,int vlan_tag_insert,unsigned int vlan_tag,int eop,int loopback)107 static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
108 void *os_buf, dma_addr_t dma_addr, unsigned int len,
109 unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
110 unsigned int vlan_tag, int eop, int loopback)
111 {
112 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
113 mss, hdr_len, vlan_tag_insert, vlan_tag,
114 WQ_ENET_OFFLOAD_MODE_TSO,
115 eop, 1 /* SOP */, eop, loopback);
116 }
117
enic_queue_rq_desc(struct vnic_rq * rq,void * os_buf,unsigned int os_buf_index,dma_addr_t dma_addr,unsigned int len)118 static inline void enic_queue_rq_desc(struct vnic_rq *rq,
119 void *os_buf, unsigned int os_buf_index,
120 dma_addr_t dma_addr, unsigned int len)
121 {
122 struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
123 u8 type = os_buf_index ?
124 RQ_ENET_TYPE_NOT_SOP : RQ_ENET_TYPE_ONLY_SOP;
125
126 rq_enet_desc_enc(desc,
127 (u64)dma_addr | VNIC_PADDR_TARGET,
128 type, (u16)len);
129
130 vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len);
131 }
132
133 struct enic;
134
135 int enic_get_vnic_config(struct enic *);
136 int enic_add_vlan(struct enic *enic, u16 vlanid);
137 int enic_del_vlan(struct enic *enic, u16 vlanid);
138 int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
139 u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
140 u8 ig_vlan_strip_en);
141 int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
142 int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
143 void enic_get_res_counts(struct enic *enic);
144 void enic_init_vnic_resources(struct enic *enic);
145 int enic_alloc_vnic_resources(struct enic *);
146 void enic_free_vnic_resources(struct enic *);
147
148 #endif /* _ENIC_RES_H_ */
149