1 // SPDX-License-Identifier: GPL-2.0 or Linux-OpenIB 2 /* Copyright (c) 2016 - 2021 Intel Corporation */ 3 #include <linux/etherdevice.h> 4 5 #include "osdep.h" 6 #include "hmc.h" 7 #include "defs.h" 8 #include "type.h" 9 #include "protos.h" 10 #include "uda.h" 11 #include "uda_d.h" 12 13 /** 14 * irdma_sc_access_ah() - Create, modify or delete AH 15 * @cqp: struct for cqp hw 16 * @info: ah information 17 * @op: Operation 18 * @scratch: u64 saved to be used during cqp completion 19 */ 20 int irdma_sc_access_ah(struct irdma_sc_cqp *cqp, struct irdma_ah_info *info, 21 u32 op, u64 scratch) 22 { 23 __le64 *wqe; 24 u64 qw1, qw2; 25 26 wqe = irdma_sc_cqp_get_next_send_wqe(cqp, scratch); 27 if (!wqe) 28 return -ENOMEM; 29 30 set_64bit_val(wqe, 0, ether_addr_to_u64(info->mac_addr) << 16); 31 qw1 = FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_PDINDEXLO, info->pd_idx) | 32 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_TC, info->tc_tos) | 33 FIELD_PREP(IRDMA_UDAQPC_VLANTAG, info->vlan_tag); 34 35 qw2 = FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ARPINDEX, info->dst_arpindex) | 36 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_FLOWLABEL, info->flow_label) | 37 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_HOPLIMIT, info->hop_ttl) | 38 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_PDINDEXHI, info->pd_idx >> 16); 39 40 if (!info->ipv4_valid) { 41 set_64bit_val(wqe, 40, 42 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR0, info->dest_ip_addr[0]) | 43 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR1, info->dest_ip_addr[1])); 44 set_64bit_val(wqe, 32, 45 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR2, info->dest_ip_addr[2]) | 46 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR3, info->dest_ip_addr[3])); 47 48 set_64bit_val(wqe, 56, 49 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR0, info->src_ip_addr[0]) | 50 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR1, info->src_ip_addr[1])); 51 set_64bit_val(wqe, 48, 52 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR2, info->src_ip_addr[2]) | 53 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR3, info->src_ip_addr[3])); 54 } else { 55 set_64bit_val(wqe, 32, 56 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR3, info->dest_ip_addr[0])); 57 58 set_64bit_val(wqe, 48, 59 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR3, info->src_ip_addr[0])); 60 } 61 62 set_64bit_val(wqe, 8, qw1); 63 set_64bit_val(wqe, 16, qw2); 64 65 dma_wmb(); /* need write block before writing WQE header */ 66 67 set_64bit_val( 68 wqe, 24, 69 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_WQEVALID, cqp->polarity) | 70 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_OPCODE, op) | 71 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_DOLOOPBACKK, info->do_lpbk) | 72 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_IPV4VALID, info->ipv4_valid) | 73 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_AVIDX, info->ah_idx) | 74 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_INSERTVLANTAG, info->insert_vlan_tag)); 75 76 print_hex_dump_debug("WQE: MANAGE_AH WQE", DUMP_PREFIX_OFFSET, 16, 8, 77 wqe, IRDMA_CQP_WQE_SIZE * 8, false); 78 irdma_sc_cqp_post_sq(cqp); 79 80 return 0; 81 } 82 83 /** 84 * irdma_create_mg_ctx() - create a mcg context 85 * @info: multicast group context info 86 */ 87 static void irdma_create_mg_ctx(struct irdma_mcast_grp_info *info) 88 { 89 struct irdma_mcast_grp_ctx_entry_info *entry_info = NULL; 90 u8 idx = 0; /* index in the array */ 91 u8 ctx_idx = 0; /* index in the MG context */ 92 93 memset(info->dma_mem_mc.va, 0, IRDMA_MAX_MGS_PER_CTX * sizeof(u64)); 94 95 for (idx = 0; idx < IRDMA_MAX_MGS_PER_CTX; idx++) { 96 entry_info = &info->mg_ctx_info[idx]; 97 if (entry_info->valid_entry) { 98 set_64bit_val((__le64 *)info->dma_mem_mc.va, 99 ctx_idx * sizeof(u64), 100 FIELD_PREP(IRDMA_UDA_MGCTX_DESTPORT, entry_info->dest_port) | 101 FIELD_PREP(IRDMA_UDA_MGCTX_VALIDENT, entry_info->valid_entry) | 102 FIELD_PREP(IRDMA_UDA_MGCTX_QPID, entry_info->qp_id)); 103 ctx_idx++; 104 } 105 } 106 } 107 108 /** 109 * irdma_access_mcast_grp() - Access mcast group based on op 110 * @cqp: Control QP 111 * @info: multicast group context info 112 * @op: operation to perform 113 * @scratch: u64 saved to be used during cqp completion 114 */ 115 int irdma_access_mcast_grp(struct irdma_sc_cqp *cqp, 116 struct irdma_mcast_grp_info *info, u32 op, 117 u64 scratch) 118 { 119 __le64 *wqe; 120 121 if (info->mg_id >= IRDMA_UDA_MAX_FSI_MGS) { 122 ibdev_dbg(to_ibdev(cqp->dev), "WQE: mg_id out of range\n"); 123 return -EINVAL; 124 } 125 126 wqe = irdma_sc_cqp_get_next_send_wqe(cqp, scratch); 127 if (!wqe) { 128 ibdev_dbg(to_ibdev(cqp->dev), "WQE: ring full\n"); 129 return -ENOMEM; 130 } 131 132 irdma_create_mg_ctx(info); 133 134 set_64bit_val(wqe, 32, info->dma_mem_mc.pa); 135 set_64bit_val(wqe, 16, 136 FIELD_PREP(IRDMA_UDA_CQPSQ_MG_VLANID, info->vlan_id) | 137 FIELD_PREP(IRDMA_UDA_CQPSQ_QS_HANDLE, info->qs_handle)); 138 set_64bit_val(wqe, 0, ether_addr_to_u64(info->dest_mac_addr)); 139 set_64bit_val(wqe, 8, 140 FIELD_PREP(IRDMA_UDA_CQPSQ_MG_HMC_FCN_ID, info->hmc_fcn_id)); 141 142 if (!info->ipv4_valid) { 143 set_64bit_val(wqe, 56, 144 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR0, info->dest_ip_addr[0]) | 145 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR1, info->dest_ip_addr[1])); 146 set_64bit_val(wqe, 48, 147 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR2, info->dest_ip_addr[2]) | 148 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR3, info->dest_ip_addr[3])); 149 } else { 150 set_64bit_val(wqe, 48, 151 FIELD_PREP(IRDMA_UDA_CQPSQ_MAV_ADDR3, info->dest_ip_addr[0])); 152 } 153 154 dma_wmb(); /* need write memory block before writing the WQE header. */ 155 156 set_64bit_val(wqe, 24, 157 FIELD_PREP(IRDMA_UDA_CQPSQ_MG_WQEVALID, cqp->polarity) | 158 FIELD_PREP(IRDMA_UDA_CQPSQ_MG_OPCODE, op) | 159 FIELD_PREP(IRDMA_UDA_CQPSQ_MG_MGIDX, info->mg_id) | 160 FIELD_PREP(IRDMA_UDA_CQPSQ_MG_VLANVALID, info->vlan_valid) | 161 FIELD_PREP(IRDMA_UDA_CQPSQ_MG_IPV4VALID, info->ipv4_valid)); 162 163 print_hex_dump_debug("WQE: MANAGE_MCG WQE", DUMP_PREFIX_OFFSET, 16, 8, 164 wqe, IRDMA_CQP_WQE_SIZE * 8, false); 165 print_hex_dump_debug("WQE: MCG_HOST CTX WQE", DUMP_PREFIX_OFFSET, 16, 166 8, info->dma_mem_mc.va, 167 IRDMA_MAX_MGS_PER_CTX * 8, false); 168 irdma_sc_cqp_post_sq(cqp); 169 170 return 0; 171 } 172 173 /** 174 * irdma_compare_mgs - Compares two multicast group structures 175 * @entry1: Multcast group info 176 * @entry2: Multcast group info in context 177 */ 178 static bool irdma_compare_mgs(struct irdma_mcast_grp_ctx_entry_info *entry1, 179 struct irdma_mcast_grp_ctx_entry_info *entry2) 180 { 181 if (entry1->dest_port == entry2->dest_port && 182 entry1->qp_id == entry2->qp_id) 183 return true; 184 185 return false; 186 } 187 188 /** 189 * irdma_sc_add_mcast_grp - Allocates mcast group entry in ctx 190 * @ctx: Multcast group context 191 * @mg: Multcast group info 192 */ 193 int irdma_sc_add_mcast_grp(struct irdma_mcast_grp_info *ctx, 194 struct irdma_mcast_grp_ctx_entry_info *mg) 195 { 196 u32 idx; 197 bool free_entry_found = false; 198 u32 free_entry_idx = 0; 199 200 /* find either an identical or a free entry for a multicast group */ 201 for (idx = 0; idx < IRDMA_MAX_MGS_PER_CTX; idx++) { 202 if (ctx->mg_ctx_info[idx].valid_entry) { 203 if (irdma_compare_mgs(&ctx->mg_ctx_info[idx], mg)) { 204 ctx->mg_ctx_info[idx].use_cnt++; 205 return 0; 206 } 207 continue; 208 } 209 if (!free_entry_found) { 210 free_entry_found = true; 211 free_entry_idx = idx; 212 } 213 } 214 215 if (free_entry_found) { 216 ctx->mg_ctx_info[free_entry_idx] = *mg; 217 ctx->mg_ctx_info[free_entry_idx].valid_entry = true; 218 ctx->mg_ctx_info[free_entry_idx].use_cnt = 1; 219 ctx->no_of_mgs++; 220 return 0; 221 } 222 223 return -ENOMEM; 224 } 225 226 /** 227 * irdma_sc_del_mcast_grp - Delete mcast group 228 * @ctx: Multcast group context 229 * @mg: Multcast group info 230 * 231 * Finds and removes a specific mulicast group from context, all 232 * parameters must match to remove a multicast group. 233 */ 234 int irdma_sc_del_mcast_grp(struct irdma_mcast_grp_info *ctx, 235 struct irdma_mcast_grp_ctx_entry_info *mg) 236 { 237 u32 idx; 238 239 /* find an entry in multicast group context */ 240 for (idx = 0; idx < IRDMA_MAX_MGS_PER_CTX; idx++) { 241 if (!ctx->mg_ctx_info[idx].valid_entry) 242 continue; 243 244 if (irdma_compare_mgs(mg, &ctx->mg_ctx_info[idx])) { 245 ctx->mg_ctx_info[idx].use_cnt--; 246 247 if (!ctx->mg_ctx_info[idx].use_cnt) { 248 ctx->mg_ctx_info[idx].valid_entry = false; 249 ctx->no_of_mgs--; 250 /* Remove gap if element was not the last */ 251 if (idx != ctx->no_of_mgs && 252 ctx->no_of_mgs > 0) { 253 memcpy(&ctx->mg_ctx_info[idx], 254 &ctx->mg_ctx_info[ctx->no_of_mgs - 1], 255 sizeof(ctx->mg_ctx_info[idx])); 256 ctx->mg_ctx_info[ctx->no_of_mgs - 1].valid_entry = false; 257 } 258 } 259 260 return 0; 261 } 262 } 263 264 return -EINVAL; 265 } 266