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Scott Feldman01f2e4e2008-09-15 09:17:11 -07001/*
Vasanthy Kolluri29046f92010-06-24 10:52:26 +00002 * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved.
Scott Feldman01f2e4e2008-09-15 09:17:11 -07003 * 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
Vasanthy Kollurid0585902010-10-20 10:17:14 +000033#define ENIC_MIN_MTU 68
Scott Feldman01f2e4e2008-09-15 09:17:11 -070034#define ENIC_MAX_MTU 9000
35
36#define ENIC_MULTICAST_PERFECT_FILTERS 32
Roopa Prabhu319d7e82010-12-08 13:19:58 +000037#define ENIC_UNICAST_PERFECT_FILTERS 32
Scott Feldman01f2e4e2008-09-15 09:17:11 -070038
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,
Vasanthy Kolluri1825aca2010-06-24 10:51:59 +000047 int offload_mode, int cq_entry, int sop, int eop, int loopback)
Scott Feldman01f2e4e2008-09-15 09:17:11 -070048{
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,
Vasanthy Kolluri1825aca2010-06-24 10:51:59 +000060 (u8)loopback);
Scott Feldman01f2e4e2008-09-15 09:17:11 -070061
Scott Feldman01f2e4e2008-09-15 09:17:11 -070062 vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop);
63}
64
65static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
Vasanthy Kolluri1825aca2010-06-24 10:51:59 +000066 void *os_buf, dma_addr_t dma_addr, unsigned int len,
67 int eop, int loopback)
Scott Feldman01f2e4e2008-09-15 09:17:11 -070068{
69 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
70 0, 0, 0, 0, 0,
Vasanthy Kolluri1825aca2010-06-24 10:51:59 +000071 eop, 0 /* !SOP */, eop, loopback);
Scott Feldman01f2e4e2008-09-15 09:17:11 -070072}
73
74static 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,
Vasanthy Kolluri1825aca2010-06-24 10:51:59 +000076 unsigned int vlan_tag, int eop, int loopback)
Scott Feldman01f2e4e2008-09-15 09:17:11 -070077{
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,
Vasanthy Kolluri1825aca2010-06-24 10:51:59 +000081 eop, 1 /* SOP */, eop, loopback);
Scott Feldman01f2e4e2008-09-15 09:17:11 -070082}
83
84static 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,
Vasanthy Kolluri1825aca2010-06-24 10:51:59 +000087 unsigned int vlan_tag, int eop, int loopback)
Scott Feldman01f2e4e2008-09-15 09:17:11 -070088{
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,
Vasanthy Kolluri1825aca2010-06-24 10:51:59 +000093 eop, 1 /* SOP */, eop, loopback);
Scott Feldman01f2e4e2008-09-15 09:17:11 -070094}
95
96static 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,
Vasanthy Kolluri1825aca2010-06-24 10:51:59 +000099 int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
Scott Feldman01f2e4e2008-09-15 09:17:11 -0700100{
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,
Vasanthy Kolluri1825aca2010-06-24 10:51:59 +0000104 eop, 1 /* SOP */, eop, loopback);
Scott Feldman01f2e4e2008-09-15 09:17:11 -0700105}
106
107static 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,
Vasanthy Kolluri1825aca2010-06-24 10:51:59 +0000110 unsigned int vlan_tag, int eop, int loopback)
Scott Feldman01f2e4e2008-09-15 09:17:11 -0700111{
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,
Vasanthy Kolluri1825aca2010-06-24 10:51:59 +0000115 eop, 1 /* SOP */, eop, loopback);
Scott Feldman01f2e4e2008-09-15 09:17:11 -0700116}
117
118static 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
Scott Feldman01f2e4e2008-09-15 09:17:11 -0700130 vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len);
131}
132
133struct enic;
134
135int enic_get_vnic_config(struct enic *);
Vasanthy Kolluri383ab922010-06-24 10:50:12 +0000136int enic_add_vlan(struct enic *enic, u16 vlanid);
137int enic_del_vlan(struct enic *enic, u16 vlanid);
Scott Feldman01f2e4e2008-09-15 09:17:11 -0700138int 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);
Vasanthy Kolluri717258b2010-10-20 10:16:59 +0000141int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
142int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
Scott Feldman01f2e4e2008-09-15 09:17:11 -0700143void enic_get_res_counts(struct enic *enic);
144void enic_init_vnic_resources(struct enic *enic);
145int enic_alloc_vnic_resources(struct enic *);
146void enic_free_vnic_resources(struct enic *);
147
148#endif /* _ENIC_RES_H_ */