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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
55 #define ENIC_DEFAULT_RX_FREE_THRESH 32
56 #define ENIC_TX_POST_THRESH (ENIC_MIN_WQ_DESCS / 2)
58 #define ENIC_SETTING(enic, f) ((enic->config.flags & VENETF_##f) ? 1 : 0)
60 static inline void enic_queue_wq_desc_ex(struct vnic_wq *wq,
61 void *os_buf, dma_addr_t dma_addr, unsigned int len,
62 unsigned int mss_or_csum_offset, unsigned int hdr_len,
63 int vlan_tag_insert, unsigned int vlan_tag,
64 int offload_mode, int cq_entry, int sop, int eop, int loopback)
66 struct wq_enet_desc *desc = vnic_wq_next_desc(wq);
68 u8 compressed_send = 0;
71 wq_enet_desc_enc(desc,
72 (u64)dma_addr | VNIC_PADDR_TARGET,
74 (u16)mss_or_csum_offset,
75 (u16)hdr_len, (u8)offload_mode,
76 (u8)eop, (u8)cq_entry,
82 vnic_wq_post(wq, os_buf, dma_addr, len, sop, eop, desc_skip_cnt,
83 (u8)cq_entry, compressed_send, wrid);
86 static inline void enic_queue_wq_desc_cont(struct vnic_wq *wq,
87 void *os_buf, dma_addr_t dma_addr, unsigned int len,
88 int eop, int loopback)
90 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
92 eop, 0 /* !SOP */, eop, loopback);
95 static inline void enic_queue_wq_desc(struct vnic_wq *wq, void *os_buf,
96 dma_addr_t dma_addr, unsigned int len, int vlan_tag_insert,
97 unsigned int vlan_tag, int eop, int loopback)
99 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
100 0, 0, vlan_tag_insert, vlan_tag,
101 WQ_ENET_OFFLOAD_MODE_CSUM,
102 eop, 1 /* SOP */, eop, loopback);
105 static inline void enic_queue_wq_desc_csum(struct vnic_wq *wq,
106 void *os_buf, dma_addr_t dma_addr, unsigned int len,
107 int ip_csum, int tcpudp_csum, int vlan_tag_insert,
108 unsigned int vlan_tag, int eop, int loopback)
110 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
111 (ip_csum ? 1 : 0) + (tcpudp_csum ? 2 : 0),
112 0, vlan_tag_insert, vlan_tag,
113 WQ_ENET_OFFLOAD_MODE_CSUM,
114 eop, 1 /* SOP */, eop, loopback);
117 static inline void enic_queue_wq_desc_csum_l4(struct vnic_wq *wq,
118 void *os_buf, dma_addr_t dma_addr, unsigned int len,
119 unsigned int csum_offset, unsigned int hdr_len,
120 int vlan_tag_insert, unsigned int vlan_tag, int eop, int loopback)
122 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
123 csum_offset, hdr_len, vlan_tag_insert, vlan_tag,
124 WQ_ENET_OFFLOAD_MODE_CSUM_L4,
125 eop, 1 /* SOP */, eop, loopback);
128 static inline void enic_queue_wq_desc_tso(struct vnic_wq *wq,
129 void *os_buf, dma_addr_t dma_addr, unsigned int len,
130 unsigned int mss, unsigned int hdr_len, int vlan_tag_insert,
131 unsigned int vlan_tag, int eop, int loopback)
133 enic_queue_wq_desc_ex(wq, os_buf, dma_addr, len,
134 mss, hdr_len, vlan_tag_insert, vlan_tag,
135 WQ_ENET_OFFLOAD_MODE_TSO,
136 eop, 1 /* SOP */, eop, loopback);
141 int enic_get_vnic_config(struct enic *);
142 int enic_add_vlan(struct enic *enic, u16 vlanid);
143 int enic_del_vlan(struct enic *enic, u16 vlanid);
144 int enic_set_nic_cfg(struct enic *enic, u8 rss_default_cpu, u8 rss_hash_type,
145 u8 rss_hash_bits, u8 rss_base_cpu, u8 rss_enable, u8 tso_ipid_split_en,
146 u8 ig_vlan_strip_en);
147 int enic_set_rss_key(struct enic *enic, dma_addr_t key_pa, u64 len);
148 int enic_set_rss_cpu(struct enic *enic, dma_addr_t cpu_pa, u64 len);
149 void enic_get_res_counts(struct enic *enic);
150 void enic_init_vnic_resources(struct enic *enic);
151 int enic_alloc_vnic_resources(struct enic *);
152 void enic_free_vnic_resources(struct enic *);
154 #endif /* _ENIC_RES_H_ */