1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2014-2018 Broadcom
8 #include <rte_memzone.h>
9 #include <rte_malloc.h>
12 #include "bnxt_vnic.h"
13 #include "hsi_struct_def_dpdk.h"
19 static void prandom_bytes(void *dest_ptr, size_t len)
21 char *dest = (char *)dest_ptr;
31 memcpy(dest, &rb, len);
38 void bnxt_init_vnics(struct bnxt *bp)
40 struct bnxt_vnic_info *vnic;
44 max_vnics = bp->max_vnics;
45 STAILQ_INIT(&bp->free_vnic_list);
46 for (i = 0; i < max_vnics; i++) {
47 vnic = &bp->vnic_info[i];
48 vnic->fw_vnic_id = (uint16_t)HWRM_NA_SIGNATURE;
49 vnic->rss_rule = (uint16_t)HWRM_NA_SIGNATURE;
50 vnic->cos_rule = (uint16_t)HWRM_NA_SIGNATURE;
51 vnic->lb_rule = (uint16_t)HWRM_NA_SIGNATURE;
53 HWRM_VNIC_RSS_CFG_INPUT_HASH_MODE_FLAGS_DEFAULT;
55 prandom_bytes(vnic->rss_hash_key, HW_HASH_KEY_SIZE);
56 STAILQ_INIT(&vnic->filter);
57 STAILQ_INIT(&vnic->flow_list);
58 STAILQ_INSERT_TAIL(&bp->free_vnic_list, vnic, next);
62 struct bnxt_vnic_info *bnxt_alloc_vnic(struct bnxt *bp)
64 struct bnxt_vnic_info *vnic;
66 /* Find the 1st unused vnic from the free_vnic_list pool*/
67 vnic = STAILQ_FIRST(&bp->free_vnic_list);
69 PMD_DRV_LOG(ERR, "No more free VNIC resources\n");
72 STAILQ_REMOVE_HEAD(&bp->free_vnic_list, next);
76 void bnxt_free_all_vnics(struct bnxt *bp)
78 struct bnxt_vnic_info *temp;
81 for (i = 0; i < bp->nr_vnics; i++) {
82 temp = &bp->vnic_info[i];
83 STAILQ_INSERT_TAIL(&bp->free_vnic_list, temp, next);
87 void bnxt_free_vnic_attributes(struct bnxt *bp)
89 struct bnxt_vnic_info *vnic;
92 if (bp->vnic_info == NULL)
95 for (i = 0; i < bp->max_vnics; i++) {
96 vnic = &bp->vnic_info[i];
97 if (vnic->rss_table) {
98 /* 'Unreserve' the rss_table */
101 vnic->rss_table = NULL;
104 if (vnic->rss_hash_key) {
105 /* 'Unreserve' the rss_hash_key */
108 vnic->rss_hash_key = NULL;
113 int bnxt_alloc_vnic_attributes(struct bnxt *bp)
115 struct bnxt_vnic_info *vnic;
116 struct rte_pci_device *pdev = bp->pdev;
117 const struct rte_memzone *mz;
118 char mz_name[RTE_MEMZONE_NAMESIZE];
119 uint32_t entry_length;
120 size_t rss_table_size;
123 rte_iova_t mz_phys_addr;
125 entry_length = HW_HASH_KEY_SIZE +
126 BNXT_MAX_MC_ADDRS * RTE_ETHER_ADDR_LEN;
128 if (BNXT_CHIP_THOR(bp))
129 rss_table_size = BNXT_RSS_TBL_SIZE_THOR *
130 2 * sizeof(*vnic->rss_table);
132 rss_table_size = HW_HASH_INDEX_SIZE * sizeof(*vnic->rss_table);
134 entry_length = RTE_CACHE_LINE_ROUNDUP(entry_length + rss_table_size);
136 max_vnics = bp->max_vnics;
137 snprintf(mz_name, RTE_MEMZONE_NAMESIZE,
138 "bnxt_%04x:%02x:%02x:%02x_vnicattr", pdev->addr.domain,
139 pdev->addr.bus, pdev->addr.devid, pdev->addr.function);
140 mz_name[RTE_MEMZONE_NAMESIZE - 1] = 0;
141 mz = rte_memzone_lookup(mz_name);
143 mz = rte_memzone_reserve(mz_name,
144 entry_length * max_vnics, SOCKET_ID_ANY,
146 RTE_MEMZONE_SIZE_HINT_ONLY |
147 RTE_MEMZONE_IOVA_CONTIG);
151 mz_phys_addr = mz->iova;
152 if ((unsigned long)mz->addr == mz_phys_addr) {
154 "Memzone physical address same as virtual.\n");
155 PMD_DRV_LOG(DEBUG, "Using rte_mem_virt2iova()\n");
156 mz_phys_addr = rte_mem_virt2iova(mz->addr);
157 if (mz_phys_addr == RTE_BAD_IOVA) {
159 "unable to map to physical memory\n");
164 for (i = 0; i < max_vnics; i++) {
165 vnic = &bp->vnic_info[i];
167 /* Allocate rss table and hash key */
169 (void *)((char *)mz->addr + (entry_length * i));
170 memset(vnic->rss_table, -1, entry_length);
172 vnic->rss_table_dma_addr = mz_phys_addr + (entry_length * i);
173 vnic->rss_hash_key = (void *)((char *)vnic->rss_table +
176 vnic->rss_hash_key_dma_addr = vnic->rss_table_dma_addr +
178 vnic->mc_list = (void *)((char *)vnic->rss_hash_key +
180 vnic->mc_list_dma_addr = vnic->rss_hash_key_dma_addr +
187 void bnxt_free_vnic_mem(struct bnxt *bp)
189 struct bnxt_vnic_info *vnic;
190 uint16_t max_vnics, i;
192 if (bp->vnic_info == NULL)
195 max_vnics = bp->max_vnics;
196 for (i = 0; i < max_vnics; i++) {
197 vnic = &bp->vnic_info[i];
198 if (vnic->fw_vnic_id != (uint16_t)HWRM_NA_SIGNATURE) {
199 PMD_DRV_LOG(ERR, "VNIC is not freed yet!\n");
200 /* TODO Call HWRM to free VNIC */
204 rte_free(bp->vnic_info);
205 bp->vnic_info = NULL;
208 int bnxt_alloc_vnic_mem(struct bnxt *bp)
210 struct bnxt_vnic_info *vnic_mem;
213 max_vnics = bp->max_vnics;
214 /* Allocate memory for VNIC pool and filter pool */
215 vnic_mem = rte_zmalloc("bnxt_vnic_info",
216 max_vnics * sizeof(struct bnxt_vnic_info), 0);
217 if (vnic_mem == NULL) {
218 PMD_DRV_LOG(ERR, "Failed to alloc memory for %d VNICs",
222 bp->vnic_info = vnic_mem;