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