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5 * Copyright (c) 2014, Cisco Systems, Inc.
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38 #include "wq_enet_desc.h"
39 #include "rq_enet_desc.h"
43 #define ENIC_MIN_WQ_DESCS 64
44 #define ENIC_MAX_WQ_DESCS 4096
45 #define ENIC_MIN_RQ_DESCS 64
46 #define ENIC_MAX_RQ_DESCS 4096
48 #define ENIC_MIN_MTU 68
49 #define ENIC_MAX_MTU 9000
51 #define ENIC_MULTICAST_PERFECT_FILTERS 32
52 #define ENIC_UNICAST_PERFECT_FILTERS 32
54 #define ENIC_NON_TSO_MAX_DESC 16
56 #define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
58 static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
59 void *os_buf, dma_addr_t dma_addr, unsigned int len,
60 unsigned int mss_or_csum_offset, unsigned int hdr_len,
61 int vlan_tag_insert, unsigned int vlan_tag,
62 int offload_mode, int cq_entry, int sop, int eop, int loopback)
64 struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
66 u8 compressed_send = 0;
69 wq_enet_desc_enc(desc,
70 (u64)dma_addr | VNIC_PADDR_TARGET,
72 (u16)mss_or_csum_offset,
73 (u16)hdr_len, (u8)offload_mode,
74 (u8)eop, (u8)cq_entry,
80 vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop, desc_skip_cnt,
81 (u8)cq_entry, compressed_send, wrid);
84 static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
85 void *os_buf, dma_addr_t dma_addr, unsigned int len,
86 int eop, int loopback)
88 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
90 eop, 0 /* !SOP */, eop, loopback);
93 static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf,
94 dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
95 unsigned int vlan_tag, int eop, int loopback)
97 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
98 0, 0, vlan_tag_insert, vlan_tag,
99 WQ_ENET_OFFLOAD_MODE_CSUM,
100 eop, 1 /* SOP */, eop, loopback);
103 static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
104 void *os_buf, dma_addr_t dma_addr, unsigned int len,
105 int ip_csum, int tcpudp_csum, int vlan_tag_insert,
106 unsigned int vlan_tag, int eop, int loopback)
108 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
109 (ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
110 0, vlan_tag_insert, vlan_tag,
111 WQ_ENET_OFFLOAD_MODE_CSUM,
112 eop, 1 /* SOP */, eop, loopback);
115 static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
116 void *os_buf, dma_addr_t dma_addr, unsigned int len,
117 unsigned int csum_offset, unsigned int hdr_len,
118 int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
120 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
121 csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
122 WQ_ENET_OFFLOAD_MODE_CSUM_L4,
123 eop, 1 /* SOP */, eop, loopback);
126 static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
127 void *os_buf, dma_addr_t dma_addr, unsigned int len,
128 unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
129 unsigned int vlan_tag, int eop, int loopback)
131 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
132 mss, hdr_len, vlan_tag_insert, vlan_tag,
133 WQ_ENET_OFFLOAD_MODE_TSO,
134 eop, 1 /* SOP */, eop, loopback);
136 static inline void enic_queue_rq_desc(struct vnic_rq *rq,
137 void *os_buf, unsigned int os_buf_index,
138 dma_addr_t dma_addr, unsigned int len)
140 struct rq_enet_desc *desc = vnic_rq_next_desc(rq);
142 u8 type = os_buf_index ?
143 RQ_ENET_TYPE_NOT_SOP : RQ_ENET_TYPE_ONLY_SOP;
145 rq_enet_desc_enc(desc,
146 (u64)dma_addr | VNIC_PADDR_TARGET,
149 vnic_rq_post(rq, os_buf, os_buf_index, dma_addr, len, wrid);
154 int enic_get_vnic_config(struct enic *);
155 int enic_add_vlan(struct enic *enic, u16 vlanid);
156 int enic_del_vlan(struct enic *enic, u16 vlanid);
157 int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
158 u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
159 u8 ig_vlan_strip_en);
160 int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
161 int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
162 void enic_get_res_counts(struct enic *enic);
163 void enic_init_vnic_resources(struct enic *enic);
164 int enic_alloc_vnic_resources(struct enic *);
165 void enic_free_vnic_resources(struct enic *);
167 #endif /* _ENIC_RES_H_ */