diff options
Diffstat (limited to 'drivers/net/bnxt/bnxt_filter.c')
| -rw-r--r-- | drivers/net/bnxt/bnxt_filter.c | 175 |
1 files changed, 175 insertions, 0 deletions
diff --git a/drivers/net/bnxt/bnxt_filter.c b/drivers/net/bnxt/bnxt_filter.c new file mode 100644 index 00000000..f03a1dc8 --- /dev/null +++ b/drivers/net/bnxt/bnxt_filter.c @@ -0,0 +1,175 @@ +/*- + * BSD LICENSE + * + * Copyright(c) Broadcom Limited. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Broadcom Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <sys/queue.h> + +#include <rte_log.h> +#include <rte_malloc.h> + +#include "bnxt.h" +#include "bnxt_filter.h" +#include "bnxt_hwrm.h" +#include "bnxt_vnic.h" +#include "hsi_struct_def_dpdk.h" + +/* + * Filter Functions + */ + +struct bnxt_filter_info *bnxt_alloc_filter(struct bnxt *bp) +{ + struct bnxt_filter_info *filter; + + /* Find the 1st unused filter from the free_filter_list pool*/ + filter = STAILQ_FIRST(&bp->free_filter_list); + if (!filter) { + RTE_LOG(ERR, PMD, "No more free filter resources\n"); + return NULL; + } + STAILQ_REMOVE_HEAD(&bp->free_filter_list, next); + + /* Default to L2 MAC Addr filter */ + filter->flags = HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_PATH_RX; + filter->enables = HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR | + HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR_MASK; + memcpy(filter->l2_addr, bp->eth_dev->data->mac_addrs->addr_bytes, + ETHER_ADDR_LEN); + memset(filter->l2_addr_mask, 0xff, ETHER_ADDR_LEN); + return filter; +} + +void bnxt_init_filters(struct bnxt *bp) +{ + struct bnxt_filter_info *filter; + int i, max_filters; + + if (BNXT_PF(bp)) { + struct bnxt_pf_info *pf = &bp->pf; + + max_filters = pf->max_l2_ctx; + } else { + struct bnxt_vf_info *vf = &bp->vf; + + max_filters = vf->max_l2_ctx; + } + STAILQ_INIT(&bp->free_filter_list); + for (i = 0; i < max_filters; i++) { + filter = &bp->filter_info[i]; + filter->fw_l2_filter_id = -1; + STAILQ_INSERT_TAIL(&bp->free_filter_list, filter, next); + } +} + +void bnxt_free_all_filters(struct bnxt *bp) +{ + struct bnxt_vnic_info *vnic; + struct bnxt_filter_info *filter, *temp_filter; + int i; + + for (i = 0; i < MAX_FF_POOLS; i++) { + STAILQ_FOREACH(vnic, &bp->ff_pool[i], next) { + filter = STAILQ_FIRST(&vnic->filter); + while (filter) { + temp_filter = STAILQ_NEXT(filter, next); + STAILQ_REMOVE(&vnic->filter, filter, + bnxt_filter_info, next); + STAILQ_INSERT_TAIL(&bp->free_filter_list, + filter, next); + filter = temp_filter; + } + STAILQ_INIT(&vnic->filter); + } + } +} + +void bnxt_free_filter_mem(struct bnxt *bp) +{ + struct bnxt_filter_info *filter; + uint16_t max_filters, i; + int rc = 0; + + /* Ensure that all filters are freed */ + if (BNXT_PF(bp)) { + struct bnxt_pf_info *pf = &bp->pf; + + max_filters = pf->max_l2_ctx; + } else { + struct bnxt_vf_info *vf = &bp->vf; + + max_filters = vf->max_l2_ctx; + } + for (i = 0; i < max_filters; i++) { + filter = &bp->filter_info[i]; + if (filter->fw_l2_filter_id != ((uint64_t)-1)) { + RTE_LOG(ERR, PMD, "HWRM filter is not freed??\n"); + /* Call HWRM to try to free filter again */ + rc = bnxt_hwrm_clear_filter(bp, filter); + if (rc) + RTE_LOG(ERR, PMD, + "HWRM filter cannot be freed rc = %d\n", + rc); + } + filter->fw_l2_filter_id = -1; + } + STAILQ_INIT(&bp->free_filter_list); + + rte_free(bp->filter_info); + bp->filter_info = NULL; +} + +int bnxt_alloc_filter_mem(struct bnxt *bp) +{ + struct bnxt_filter_info *filter_mem; + uint16_t max_filters; + + if (BNXT_PF(bp)) { + struct bnxt_pf_info *pf = &bp->pf; + + max_filters = pf->max_l2_ctx; + } else { + struct bnxt_vf_info *vf = &bp->vf; + + max_filters = vf->max_l2_ctx; + } + /* Allocate memory for VNIC pool and filter pool */ + filter_mem = rte_zmalloc("bnxt_filter_info", + max_filters * sizeof(struct bnxt_filter_info), + 0); + if (filter_mem == NULL) { + RTE_LOG(ERR, PMD, "Failed to alloc memory for %d filters", + max_filters); + return -ENOMEM; + } + bp->filter_info = filter_mem; + return 0; +} |