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 ETH_MIN_MTU
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 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
enic_queue_wq_desc_cont(struct vnic_wq * wq,void * os_buf,dma_addr_t dma_addr,unsigned int len,int eop,int loopback)69 static 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
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)78 static 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
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)88 static 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
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)100 static 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
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)111 static 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
enic_queue_rq_desc(struct vnic_rq * rq,void * os_buf,unsigned int os_buf_index,dma_addr_t dma_addr,unsigned int len)122 static 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
138 struct enic;
139
140 int enic_get_vnic_config(struct enic *);
141 int enic_add_vlan(struct enic *enic, u16 vlanid);
142 int enic_del_vlan(struct enic *enic, u16 vlanid);
143 int 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);
146 int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
147 int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
148 void enic_get_res_counts(struct enic *enic);
149 void enic_init_vnic_resources(struct enic *enic);
150 int enic_alloc_vnic_resources(struct enic *);
151 void enic_free_vnic_resources(struct enic *);
152
153 #endif /* _ENIC_RES_H_ */
154