9738793f28
Add functions to allocate, initialize, and free vnics. A VNIC represents a virtual interface. It is a resource in the RX path of the chip and is used to setup various target actions such as RSS, MAC filtering etc. for the physical function in use. Signed-off-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Signed-off-by: Stephen Hurd <stephen.hurd@broadcom.com> Reviewed-by: David Christensen <david.christensen@broadcom.com>
278 lines
7.0 KiB
C
278 lines
7.0 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright(c) 2014-2015 Broadcom Corporation.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of Broadcom Corporation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <inttypes.h>
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#include <rte_memzone.h>
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#include <rte_malloc.h>
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#include "bnxt.h"
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#include "bnxt_vnic.h"
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#include "hsi_struct_def_dpdk.h"
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/*
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* VNIC Functions
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*/
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static void prandom_bytes(void *dest_ptr, size_t len)
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{
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char *dest = (char *)dest_ptr;
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uint64_t rb;
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while (len) {
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rb = rte_rand();
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if (len >= 8) {
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memcpy(dest, &rb, 8);
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len -= 8;
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dest += 8;
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} else {
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memcpy(dest, &rb, len);
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dest += len;
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len = 0;
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}
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}
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}
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void bnxt_init_vnics(struct bnxt *bp)
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{
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struct bnxt_vnic_info *vnic;
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uint16_t max_vnics;
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int i, j;
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if (BNXT_PF(bp)) {
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struct bnxt_pf_info *pf = &bp->pf;
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max_vnics = pf->max_vnics;
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} else {
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struct bnxt_vf_info *vf = &bp->vf;
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max_vnics = vf->max_vnics;
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}
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STAILQ_INIT(&bp->free_vnic_list);
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for (i = 0; i < max_vnics; i++) {
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vnic = &bp->vnic_info[i];
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vnic->fw_vnic_id = (uint16_t)HWRM_NA_SIGNATURE;
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vnic->fw_rss_cos_lb_ctx = (uint16_t)HWRM_NA_SIGNATURE;
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vnic->ctx_is_rss_cos_lb = HW_CONTEXT_NONE;
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for (j = 0; j < MAX_QUEUES_PER_VNIC; j++)
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vnic->fw_grp_ids[j] = (uint16_t)HWRM_NA_SIGNATURE;
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prandom_bytes(vnic->rss_hash_key, HW_HASH_KEY_SIZE);
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STAILQ_INIT(&vnic->filter);
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STAILQ_INSERT_TAIL(&bp->free_vnic_list, vnic, next);
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}
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for (i = 0; i < MAX_FF_POOLS; i++)
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STAILQ_INIT(&bp->ff_pool[i]);
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}
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int bnxt_free_vnic(struct bnxt *bp, struct bnxt_vnic_info *vnic,
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int pool)
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{
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struct bnxt_vnic_info *temp;
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temp = STAILQ_FIRST(&bp->ff_pool[pool]);
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while (temp) {
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if (temp == vnic) {
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STAILQ_REMOVE(&bp->ff_pool[pool], vnic,
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bnxt_vnic_info, next);
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vnic->fw_vnic_id = (uint16_t)HWRM_NA_SIGNATURE;
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STAILQ_INSERT_TAIL(&bp->free_vnic_list, vnic,
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next);
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return 0;
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}
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temp = STAILQ_NEXT(temp, next);
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}
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RTE_LOG(ERR, PMD, "VNIC %p is not found in pool[%d]\n", vnic, pool);
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return -EINVAL;
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}
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struct bnxt_vnic_info *bnxt_alloc_vnic(struct bnxt *bp)
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{
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struct bnxt_vnic_info *vnic;
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/* Find the 1st unused vnic from the free_vnic_list pool*/
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vnic = STAILQ_FIRST(&bp->free_vnic_list);
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if (!vnic) {
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RTE_LOG(ERR, PMD, "No more free VNIC resources\n");
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return NULL;
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}
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STAILQ_REMOVE_HEAD(&bp->free_vnic_list, next);
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return vnic;
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}
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void bnxt_free_all_vnics(struct bnxt *bp)
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{
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struct bnxt_vnic_info *temp, *next;
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int i;
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for (i = 0; i < MAX_FF_POOLS; i++) {
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temp = STAILQ_FIRST(&bp->ff_pool[i]);
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while (temp) {
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next = STAILQ_NEXT(temp, next);
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STAILQ_REMOVE(&bp->ff_pool[i], temp, bnxt_vnic_info,
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next);
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STAILQ_INSERT_TAIL(&bp->free_vnic_list, temp, next);
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temp = next;
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}
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}
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}
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void bnxt_free_vnic_attributes(struct bnxt *bp)
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{
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struct bnxt_vnic_info *vnic;
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STAILQ_FOREACH(vnic, &bp->free_vnic_list, next) {
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if (vnic->rss_table) {
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/* 'Unreserve' the rss_table */
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/* N/A */
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vnic->rss_table = NULL;
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}
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if (vnic->rss_hash_key) {
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/* 'Unreserve' the rss_hash_key */
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/* N/A */
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vnic->rss_hash_key = NULL;
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}
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}
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}
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int bnxt_alloc_vnic_attributes(struct bnxt *bp)
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{
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struct bnxt_vnic_info *vnic;
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struct rte_pci_device *pdev = bp->pdev;
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const struct rte_memzone *mz;
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char mz_name[RTE_MEMZONE_NAMESIZE];
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int entry_length = RTE_CACHE_LINE_ROUNDUP(
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HW_HASH_INDEX_SIZE * sizeof(*vnic->rss_table) +
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HW_HASH_KEY_SIZE);
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uint16_t max_vnics;
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int i;
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if (BNXT_PF(bp)) {
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struct bnxt_pf_info *pf = &bp->pf;
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max_vnics = pf->max_vnics;
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} else {
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struct bnxt_vf_info *vf = &bp->vf;
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max_vnics = vf->max_vnics;
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}
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snprintf(mz_name, RTE_MEMZONE_NAMESIZE,
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"bnxt_%04x:%02x:%02x:%02x_vnicattr", pdev->addr.domain,
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pdev->addr.bus, pdev->addr.devid, pdev->addr.function);
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mz_name[RTE_MEMZONE_NAMESIZE - 1] = 0;
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mz = rte_memzone_lookup(mz_name);
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if (!mz) {
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mz = rte_memzone_reserve(mz_name,
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entry_length * max_vnics,
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SOCKET_ID_ANY,
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RTE_MEMZONE_2MB |
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RTE_MEMZONE_SIZE_HINT_ONLY);
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if (!mz)
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return -ENOMEM;
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}
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for (i = 0; i < max_vnics; i++) {
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vnic = &bp->vnic_info[i];
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/* Allocate rss table and hash key */
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vnic->rss_table =
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(void *)((char *)mz->addr + (entry_length * i));
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memset(vnic->rss_table, -1, entry_length);
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vnic->rss_table_dma_addr = mz->phys_addr + (entry_length * i);
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vnic->rss_hash_key = (void *)((char *)vnic->rss_table +
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HW_HASH_INDEX_SIZE * sizeof(*vnic->rss_table));
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vnic->rss_hash_key_dma_addr = vnic->rss_table_dma_addr +
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HW_HASH_INDEX_SIZE * sizeof(*vnic->rss_table);
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}
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return 0;
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}
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void bnxt_free_vnic_mem(struct bnxt *bp)
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{
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struct bnxt_vnic_info *vnic;
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uint16_t max_vnics, i;
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if (BNXT_PF(bp)) {
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struct bnxt_pf_info *pf = &bp->pf;
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max_vnics = pf->max_vnics;
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} else {
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struct bnxt_vf_info *vf = &bp->vf;
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max_vnics = vf->max_vnics;
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}
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for (i = 0; i < max_vnics; i++) {
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vnic = &bp->vnic_info[i];
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if (vnic->fw_vnic_id != (uint16_t)HWRM_NA_SIGNATURE) {
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RTE_LOG(ERR, PMD, "VNIC is not freed yet!\n");
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/* TODO Call HWRM to free VNIC */
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}
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}
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rte_free(bp->vnic_info);
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bp->vnic_info = NULL;
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}
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int bnxt_alloc_vnic_mem(struct bnxt *bp)
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{
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struct bnxt_vnic_info *vnic_mem;
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uint16_t max_vnics;
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if (BNXT_PF(bp)) {
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struct bnxt_pf_info *pf = &bp->pf;
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max_vnics = pf->max_vnics;
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} else {
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struct bnxt_vf_info *vf = &bp->vf;
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max_vnics = vf->max_vnics;
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}
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/* Allocate memory for VNIC pool and filter pool */
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vnic_mem = rte_zmalloc("bnxt_vnic_info",
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max_vnics * sizeof(struct bnxt_vnic_info), 0);
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if (vnic_mem == NULL) {
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RTE_LOG(ERR, PMD, "Failed to alloc memory for %d VNICs",
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max_vnics);
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return -ENOMEM;
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}
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bp->vnic_info = vnic_mem;
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return 0;
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}
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