1 /* SPDX-License-Identifier: BSD-3-Clause
3 * Copyright(c) 2019-2020 Xilinx, Inc.
4 * Copyright(c) 2017-2019 Solarflare Communications Inc.
6 * This software was jointly developed between OKTET Labs (under contract
7 * for Solarflare) and Solarflare Communications, Inc.
10 #include <rte_common.h>
15 #include "sfc_debug.h"
19 sfc_filter_is_match_supported(struct sfc_adapter *sa, uint32_t match)
21 struct sfc_filter *filter = &sa->filter;
24 for (i = 0; i < filter->supported_match_num; ++i) {
25 if (match == filter->supported_match[i])
33 sfc_filter_cache_match_supported(struct sfc_adapter *sa)
35 struct sfc_filter *filter = &sa->filter;
36 size_t num = filter->supported_match_num;
37 uint32_t *buf = filter->supported_match;
41 /* Just a guess of possibly sufficient entries */
45 for (retry = 0; retry < 2; ++retry) {
46 if (num != filter->supported_match_num) {
48 buf = rte_realloc(buf, num * sizeof(*buf), 0);
53 rc = efx_filter_supported_filters(sa->nic, buf, num, &num);
55 filter->supported_match_num = num;
56 filter->supported_match = buf;
59 } else if (rc != ENOSPC) {
60 goto fail_efx_filter_supported_filters;
64 SFC_ASSERT(rc == ENOSPC);
66 fail_efx_filter_supported_filters:
68 /* Original pointer is not freed by rte_realloc() on failure */
70 filter->supported_match = NULL;
71 filter->supported_match_num = 0;
76 sfc_filter_attach(struct sfc_adapter *sa)
81 sfc_log_init(sa, "entry");
83 rc = efx_filter_init(sa->nic);
85 goto fail_filter_init;
87 rc = sfc_filter_cache_match_supported(sa);
89 goto fail_cache_match_supported;
91 efx_filter_fini(sa->nic);
93 sa->filter.supports_ip_proto_or_addr_filter = B_FALSE;
94 sa->filter.supports_rem_or_local_port_filter = B_FALSE;
95 for (i = 0; i < sa->filter.supported_match_num; ++i) {
96 if (sa->filter.supported_match[i] &
97 (EFX_FILTER_MATCH_IP_PROTO | EFX_FILTER_MATCH_LOC_HOST |
98 EFX_FILTER_MATCH_REM_HOST))
99 sa->filter.supports_ip_proto_or_addr_filter = B_TRUE;
101 if (sa->filter.supported_match[i] &
102 (EFX_FILTER_MATCH_LOC_PORT | EFX_FILTER_MATCH_REM_PORT))
103 sa->filter.supports_rem_or_local_port_filter = B_TRUE;
106 sfc_log_init(sa, "done");
110 fail_cache_match_supported:
111 efx_filter_fini(sa->nic);
114 sfc_log_init(sa, "failed %d", rc);
119 sfc_filter_detach(struct sfc_adapter *sa)
121 struct sfc_filter *filter = &sa->filter;
123 sfc_log_init(sa, "entry");
125 rte_free(filter->supported_match);
126 filter->supported_match = NULL;
127 filter->supported_match_num = 0;
129 sfc_log_init(sa, "done");