diff options
Diffstat (limited to 'src/spdk/dpdk/drivers/net/bnxt/bnxt_vnic.c')
| -rw-r--r-- | src/spdk/dpdk/drivers/net/bnxt/bnxt_vnic.c | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/src/spdk/dpdk/drivers/net/bnxt/bnxt_vnic.c b/src/spdk/dpdk/drivers/net/bnxt/bnxt_vnic.c new file mode 100644 index 00000000..c0577cd7 --- /dev/null +++ b/src/spdk/dpdk/drivers/net/bnxt/bnxt_vnic.c @@ -0,0 +1,240 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright(c) 2014-2018 Broadcom + * All rights reserved. + */ + +#include <inttypes.h> + +#include <rte_memzone.h> +#include <rte_malloc.h> + +#include "bnxt.h" +#include "bnxt_vnic.h" +#include "hsi_struct_def_dpdk.h" + +/* + * VNIC Functions + */ + +static void prandom_bytes(void *dest_ptr, size_t len) +{ + char *dest = (char *)dest_ptr; + uint64_t rb; + + while (len) { + rb = rte_rand(); + if (len >= 8) { + memcpy(dest, &rb, 8); + len -= 8; + dest += 8; + } else { + memcpy(dest, &rb, len); + dest += len; + len = 0; + } + } +} + +void bnxt_init_vnics(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic; + uint16_t max_vnics; + int i; + + max_vnics = bp->max_vnics; + STAILQ_INIT(&bp->free_vnic_list); + for (i = 0; i < max_vnics; i++) { + vnic = &bp->vnic_info[i]; + vnic->fw_vnic_id = (uint16_t)HWRM_NA_SIGNATURE; + vnic->rss_rule = (uint16_t)HWRM_NA_SIGNATURE; + vnic->cos_rule = (uint16_t)HWRM_NA_SIGNATURE; + vnic->lb_rule = (uint16_t)HWRM_NA_SIGNATURE; + vnic->hash_mode = + HWRM_VNIC_RSS_CFG_INPUT_HASH_MODE_FLAGS_DEFAULT; + + prandom_bytes(vnic->rss_hash_key, HW_HASH_KEY_SIZE); + STAILQ_INIT(&vnic->filter); + STAILQ_INIT(&vnic->flow_list); + STAILQ_INSERT_TAIL(&bp->free_vnic_list, vnic, next); + } + for (i = 0; i < MAX_FF_POOLS; i++) + STAILQ_INIT(&bp->ff_pool[i]); +} + +int bnxt_free_vnic(struct bnxt *bp, struct bnxt_vnic_info *vnic, + int pool) +{ + struct bnxt_vnic_info *temp; + + temp = STAILQ_FIRST(&bp->ff_pool[pool]); + while (temp) { + if (temp == vnic) { + STAILQ_REMOVE(&bp->ff_pool[pool], vnic, + bnxt_vnic_info, next); + vnic->fw_vnic_id = (uint16_t)HWRM_NA_SIGNATURE; + STAILQ_INSERT_TAIL(&bp->free_vnic_list, vnic, + next); + return 0; + } + temp = STAILQ_NEXT(temp, next); + } + PMD_DRV_LOG(ERR, "VNIC %p is not found in pool[%d]\n", vnic, pool); + return -EINVAL; +} + +struct bnxt_vnic_info *bnxt_alloc_vnic(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic; + + /* Find the 1st unused vnic from the free_vnic_list pool*/ + vnic = STAILQ_FIRST(&bp->free_vnic_list); + if (!vnic) { + PMD_DRV_LOG(ERR, "No more free VNIC resources\n"); + return NULL; + } + STAILQ_REMOVE_HEAD(&bp->free_vnic_list, next); + return vnic; +} + +void bnxt_free_all_vnics(struct bnxt *bp) +{ + struct bnxt_vnic_info *temp, *next; + int i; + + for (i = 0; i < MAX_FF_POOLS; i++) { + temp = STAILQ_FIRST(&bp->ff_pool[i]); + while (temp) { + next = STAILQ_NEXT(temp, next); + STAILQ_REMOVE(&bp->ff_pool[i], temp, bnxt_vnic_info, + next); + STAILQ_INSERT_TAIL(&bp->free_vnic_list, temp, next); + temp = next; + } + } +} + +void bnxt_free_vnic_attributes(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic; + + STAILQ_FOREACH(vnic, &bp->free_vnic_list, next) { + if (vnic->rss_table) { + /* 'Unreserve' the rss_table */ + /* N/A */ + + vnic->rss_table = NULL; + } + + if (vnic->rss_hash_key) { + /* 'Unreserve' the rss_hash_key */ + /* N/A */ + + vnic->rss_hash_key = NULL; + } + } +} + +int bnxt_alloc_vnic_attributes(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic; + struct rte_pci_device *pdev = bp->pdev; + const struct rte_memzone *mz; + char mz_name[RTE_MEMZONE_NAMESIZE]; + uint32_t entry_length = RTE_CACHE_LINE_ROUNDUP( + HW_HASH_INDEX_SIZE * sizeof(*vnic->rss_table) + + HW_HASH_KEY_SIZE + + BNXT_MAX_MC_ADDRS * ETHER_ADDR_LEN); + uint16_t max_vnics; + int i; + rte_iova_t mz_phys_addr; + + max_vnics = bp->max_vnics; + snprintf(mz_name, RTE_MEMZONE_NAMESIZE, + "bnxt_%04x:%02x:%02x:%02x_vnicattr", pdev->addr.domain, + pdev->addr.bus, pdev->addr.devid, pdev->addr.function); + mz_name[RTE_MEMZONE_NAMESIZE - 1] = 0; + mz = rte_memzone_lookup(mz_name); + if (!mz) { + mz = rte_memzone_reserve(mz_name, + entry_length * max_vnics, SOCKET_ID_ANY, + RTE_MEMZONE_2MB | + RTE_MEMZONE_SIZE_HINT_ONLY | + RTE_MEMZONE_IOVA_CONTIG); + if (!mz) + return -ENOMEM; + } + mz_phys_addr = mz->iova; + if ((unsigned long)mz->addr == mz_phys_addr) { + PMD_DRV_LOG(WARNING, + "Memzone physical address same as virtual.\n"); + PMD_DRV_LOG(WARNING, + "Using rte_mem_virt2iova()\n"); + mz_phys_addr = rte_mem_virt2iova(mz->addr); + if (mz_phys_addr == 0) { + PMD_DRV_LOG(ERR, + "unable to map vnic address to physical memory\n"); + return -ENOMEM; + } + } + + for (i = 0; i < max_vnics; i++) { + vnic = &bp->vnic_info[i]; + + /* Allocate rss table and hash key */ + vnic->rss_table = + (void *)((char *)mz->addr + (entry_length * i)); + memset(vnic->rss_table, -1, entry_length); + + vnic->rss_table_dma_addr = mz_phys_addr + (entry_length * i); + vnic->rss_hash_key = (void *)((char *)vnic->rss_table + + HW_HASH_INDEX_SIZE * sizeof(*vnic->rss_table)); + + vnic->rss_hash_key_dma_addr = vnic->rss_table_dma_addr + + HW_HASH_INDEX_SIZE * sizeof(*vnic->rss_table); + vnic->mc_list = (void *)((char *)vnic->rss_hash_key + + HW_HASH_KEY_SIZE); + vnic->mc_list_dma_addr = vnic->rss_hash_key_dma_addr + + HW_HASH_KEY_SIZE; + } + + return 0; +} + +void bnxt_free_vnic_mem(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic; + uint16_t max_vnics, i; + + if (bp->vnic_info == NULL) + return; + + max_vnics = bp->max_vnics; + for (i = 0; i < max_vnics; i++) { + vnic = &bp->vnic_info[i]; + if (vnic->fw_vnic_id != (uint16_t)HWRM_NA_SIGNATURE) { + PMD_DRV_LOG(ERR, "VNIC is not freed yet!\n"); + /* TODO Call HWRM to free VNIC */ + } + } + + rte_free(bp->vnic_info); + bp->vnic_info = NULL; +} + +int bnxt_alloc_vnic_mem(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic_mem; + uint16_t max_vnics; + + max_vnics = bp->max_vnics; + /* Allocate memory for VNIC pool and filter pool */ + vnic_mem = rte_zmalloc("bnxt_vnic_info", + max_vnics * sizeof(struct bnxt_vnic_info), 0); + if (vnic_mem == NULL) { + PMD_DRV_LOG(ERR, "Failed to alloc memory for %d VNICs", + max_vnics); + return -ENOMEM; + } + bp->vnic_info = vnic_mem; + return 0; +} |