1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2014-2018 Broadcom
8 #include <rte_byteorder.h>
10 #include <rte_malloc.h>
12 #include <rte_flow_driver.h>
13 #include <rte_tailq.h>
16 #include "bnxt_filter.h"
17 #include "bnxt_hwrm.h"
18 #include "bnxt_vnic.h"
19 #include "hsi_struct_def_dpdk.h"
25 struct bnxt_filter_info *bnxt_alloc_filter(struct bnxt *bp)
27 struct bnxt_filter_info *filter;
29 filter = bnxt_get_unused_filter(bp);
31 PMD_DRV_LOG(ERR, "No more free filter resources\n");
35 filter->mac_index = INVALID_MAC_INDEX;
36 /* Default to L2 MAC Addr filter */
37 filter->flags = HWRM_CFA_L2_FILTER_ALLOC_INPUT_FLAGS_PATH_RX;
38 filter->enables = HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR |
39 HWRM_CFA_L2_FILTER_ALLOC_INPUT_ENABLES_L2_ADDR_MASK;
40 memcpy(filter->l2_addr, bp->mac_addr, RTE_ETHER_ADDR_LEN);
41 memset(filter->l2_addr_mask, 0xff, RTE_ETHER_ADDR_LEN);
42 /* bump up the reference count of filter */
47 struct bnxt_filter_info *bnxt_alloc_vf_filter(struct bnxt *bp, uint16_t vf)
49 struct bnxt_filter_info *filter;
51 filter = rte_zmalloc("bnxt_vf_filter_info", sizeof(*filter), 0);
53 PMD_DRV_LOG(ERR, "Failed to alloc memory for VF %hu filters\n",
58 filter->fw_l2_filter_id = UINT64_MAX;
59 STAILQ_INSERT_TAIL(&bp->pf.vf_info[vf].filter, filter, next);
63 static void bnxt_init_filters(struct bnxt *bp)
65 struct bnxt_filter_info *filter;
68 max_filters = bp->max_l2_ctx;
69 STAILQ_INIT(&bp->free_filter_list);
70 for (i = 0; i < max_filters; i++) {
71 filter = &bp->filter_info[i];
72 filter->fw_l2_filter_id = UINT64_MAX;
73 filter->fw_em_filter_id = UINT64_MAX;
74 filter->fw_ntuple_filter_id = UINT64_MAX;
75 STAILQ_INSERT_TAIL(&bp->free_filter_list, filter, next);
79 void bnxt_free_all_filters(struct bnxt *bp)
81 struct bnxt_vnic_info *vnic;
82 struct bnxt_filter_info *filter, *temp_filter;
85 for (i = 0; i < bp->nr_vnics; i++) {
86 vnic = &bp->vnic_info[i];
87 filter = STAILQ_FIRST(&vnic->filter);
89 temp_filter = STAILQ_NEXT(filter, next);
90 STAILQ_REMOVE(&vnic->filter, filter,
91 bnxt_filter_info, next);
92 STAILQ_INSERT_TAIL(&bp->free_filter_list,
96 STAILQ_INIT(&vnic->filter);
99 for (i = 0; i < bp->pf.max_vfs; i++) {
100 STAILQ_FOREACH(filter, &bp->pf.vf_info[i].filter, next) {
101 bnxt_hwrm_clear_l2_filter(bp, filter);
106 void bnxt_free_filter_mem(struct bnxt *bp)
108 struct bnxt_filter_info *filter;
109 uint16_t max_filters, i;
112 if (bp->filter_info == NULL)
115 /* Ensure that all filters are freed */
116 max_filters = bp->max_l2_ctx;
117 for (i = 0; i < max_filters; i++) {
118 filter = &bp->filter_info[i];
119 if (filter->fw_ntuple_filter_id != ((uint64_t)-1) &&
120 filter->filter_type == HWRM_CFA_NTUPLE_FILTER) {
121 /* Call HWRM to try to free filter again */
122 rc = bnxt_hwrm_clear_ntuple_filter(bp, filter);
125 "Cannot free ntuple filter: %d\n",
128 filter->fw_ntuple_filter_id = UINT64_MAX;
130 if (filter->fw_l2_filter_id != ((uint64_t)-1) &&
131 filter->filter_type == HWRM_CFA_L2_FILTER) {
132 PMD_DRV_LOG(DEBUG, "L2 filter is not free\n");
133 /* Call HWRM to try to free filter again */
134 rc = bnxt_hwrm_clear_l2_filter(bp, filter);
137 "Cannot free L2 filter: %d\n",
140 filter->fw_l2_filter_id = UINT64_MAX;
143 STAILQ_INIT(&bp->free_filter_list);
145 rte_free(bp->filter_info);
146 bp->filter_info = NULL;
148 for (i = 0; i < bp->pf.max_vfs; i++) {
149 STAILQ_FOREACH(filter, &bp->pf.vf_info[i].filter, next) {
151 STAILQ_REMOVE(&bp->pf.vf_info[i].filter, filter,
152 bnxt_filter_info, next);
157 int bnxt_alloc_filter_mem(struct bnxt *bp)
159 struct bnxt_filter_info *filter_mem;
160 uint16_t max_filters;
162 max_filters = bp->max_l2_ctx;
163 /* Allocate memory for VNIC pool and filter pool */
164 filter_mem = rte_zmalloc("bnxt_filter_info",
165 max_filters * sizeof(struct bnxt_filter_info),
167 if (filter_mem == NULL) {
168 PMD_DRV_LOG(ERR, "Failed to alloc memory for %d filters",
172 bp->filter_info = filter_mem;
173 bnxt_init_filters(bp);
177 struct bnxt_filter_info *bnxt_get_unused_filter(struct bnxt *bp)
179 struct bnxt_filter_info *filter;
181 /* Find the 1st unused filter from the free_filter_list pool*/
182 filter = STAILQ_FIRST(&bp->free_filter_list);
184 PMD_DRV_LOG(ERR, "No more free filter resources\n");
187 STAILQ_REMOVE_HEAD(&bp->free_filter_list, next);
192 void bnxt_free_filter(struct bnxt *bp, struct bnxt_filter_info *filter)
194 memset(filter, 0, sizeof(*filter));
195 filter->mac_index = INVALID_MAC_INDEX;
196 filter->fw_l2_filter_id = UINT64_MAX;
197 filter->fw_ntuple_filter_id = UINT64_MAX;
198 filter->fw_em_filter_id = UINT64_MAX;
199 STAILQ_INSERT_TAIL(&bp->free_filter_list, filter, next);