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 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 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 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 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 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 } 100 101 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 } 111 112 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