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_DEFAULT 4096
17 #define ENIC_MAX_WQ_DESCS 16384
18 #define ENIC_MIN_RQ_DESCS 64
19 #define ENIC_MAX_RQ_DESCS 16384
20 #define ENIC_MAX_RQ_DESCS_DEFAULT 4096
21 #define ENIC_MAX_CQ_DESCS_DEFAULT (64 * 1024)
22
23 #define ENIC_MIN_MTU ETH_MIN_MTU
24 #define ENIC_MAX_MTU 9000
25
26 #define ENIC_MULTICAST_PERFECT_FILTERS 32
27 #define ENIC_UNICAST_PERFECT_FILTERS 32
28
29 #define ENIC_NON_TSO_MAX_DESC 16
30
31 #define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
32
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)33 static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
34 void *os_buf, dma_addr_t dma_addr, unsigned int len,
35 unsigned int mss_or_csum_offset, unsigned int hdr_len,
36 int vlan_tag_insert, unsigned int vlan_tag,
37 int offload_mode, int cq_entry, int sop, int eop, int loopback)
38 {
39 struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
40 u8 desc_skip_cnt = 1;
41 u8 compressed_send = 0;
42 u64 wrid = 0;
43
44 wq_enet_desc_enc(desc,
45 (u64)dma_addr | VNIC_PADDR_TARGET,
46 (u16)len,
47 (u16)mss_or_csum_offset,
48 (u16)hdr_len, (u8)offload_mode,
49 (u8)eop, (u8)cq_entry,
50 0, /* fcoe_encap */
51 (u8)vlan_tag_insert,
52 (u16)vlan_tag,
53 (u8)loopback);
54
55 vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop, desc_skip_cnt,
56 (u8)cq_entry, compressed_send, wrid);
57 }
58
enic_queue_wq_desc_cont(struct vnic_wq * wq,void * os_buf,dma_addr_t dma_addr,unsigned int len,int eop,int loopback)59 static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
60 void *os_buf, dma_addr_t dma_addr, unsigned int len,
61 int eop, int loopback)
62 {
63 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
64 0, 0, 0, 0, 0,
65 eop, 0 /* !SOP */, eop, loopback);
66 }
67
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)68 static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf,
69 dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
70 unsigned int vlan_tag, int eop, int loopback)
71 {
72 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
73 0, 0, vlan_tag_insert, vlan_tag,
74 WQ_ENET_OFFLOAD_MODE_CSUM,
75 eop, 1 /* SOP */, eop, loopback);
76 }
77
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)78 static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
79 void *os_buf, dma_addr_t dma_addr, unsigned int len,
80 int ip_csum, int tcpudp_csum, int vlan_tag_insert,
81 unsigned int vlan_tag, int eop, int loopback)
82 {
83 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
84 (ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
85 0, vlan_tag_insert, vlan_tag,
86 WQ_ENET_OFFLOAD_MODE_CSUM,
87 eop, 1 /* SOP */, eop, loopback);
88 }
89
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)90 static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
91 void *os_buf, dma_addr_t dma_addr, unsigned int len,
92 unsigned int csum_offset, unsigned int hdr_len,
93 int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
94 {
95 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
96 csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
97 WQ_ENET_OFFLOAD_MODE_CSUM_L4,
98 eop, 1 /* SOP */, eop, loopback);
99 }
100
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)101 static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
102 void *os_buf, dma_addr_t dma_addr, unsigned int len,
103 unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
104 unsigned int vlan_tag, int eop, int loopback)
105 {
106 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
107 mss, hdr_len, vlan_tag_insert, vlan_tag,
108 WQ_ENET_OFFLOAD_MODE_TSO,
109 eop, 1 /* SOP */, eop, loopback);
110 }
111
enic_queue_rq_desc(struct vnic_rq * rq,void * os_buf,unsigned int os_buf_index,dma_addr_t dma_addr,unsigned int len)112 static inline void enic_queue_rq_desc(struct vnic_rq *rq,
113 void *os_buf, unsigned int os_buf_index,
114 dma_addr_t dma_addr, unsigned int len)
115 {
116 struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
117 u64 wrid = 0;
118 u8 type = os_buf_index ?
119 RQ_ENET_TYPE_NOT_SOP : RQ_ENET_TYPE_ONLY_SOP;
120
121 rq_enet_desc_enc(desc,
122 (u64)dma_addr | VNIC_PADDR_TARGET,
123 type, (u16)len);
124
125 vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len, wrid);
126 }
127
128 struct enic;
129
130 int enic_get_vnic_config(struct enic *);
131 int enic_add_vlan(struct enic *enic, u16 vlanid);
132 int enic_del_vlan(struct enic *enic, u16 vlanid);
133 int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
134 u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
135 u8 ig_vlan_strip_en);
136 int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
137 int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
138 void enic_get_res_counts(struct enic *enic);
139 void enic_init_vnic_resources(struct enic *enic);
140 int enic_alloc_vnic_resources(struct enic *);
141 void enic_free_vnic_resources(struct enic *);
142
143 #endif /* _ENIC_RES_H_ */
144