4 * Copyright (c) 2017 Solarflare Communications Inc.
7 * This software was jointly developed between OKTET Labs (under contract
8 * for Solarflare) and Solarflare Communications, Inc.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions are met:
13 * 1. Redistributions of source code must retain the above copyright notice,
14 * this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright notice,
16 * this list of conditions and the following disclaimer in the documentation
17 * and/or other materials provided with the distribution.
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
29 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32 #include <rte_common.h>
40 sfc_filter_is_match_supported(struct sfc_adapter
*sa
, uint32_t match
)
42 struct sfc_filter
*filter
= &sa
->filter
;
45 for (i
= 0; i
< filter
->supported_match_num
; ++i
) {
46 if (match
== filter
->supported_match
[i
])
54 sfc_filter_cache_match_supported(struct sfc_adapter
*sa
)
56 struct sfc_filter
*filter
= &sa
->filter
;
57 size_t num
= filter
->supported_match_num
;
58 uint32_t *buf
= filter
->supported_match
;
62 /* Just a guess of possibly sufficient entries */
66 for (retry
= 0; retry
< 2; ++retry
) {
67 if (num
!= filter
->supported_match_num
) {
69 buf
= rte_realloc(buf
, num
* sizeof(*buf
), 0);
74 rc
= efx_filter_supported_filters(sa
->nic
, buf
, num
, &num
);
76 filter
->supported_match_num
= num
;
77 filter
->supported_match
= buf
;
80 } else if (rc
!= ENOSPC
) {
81 goto fail_efx_filter_supported_filters
;
85 SFC_ASSERT(rc
== ENOSPC
);
87 fail_efx_filter_supported_filters
:
89 /* Original pointer is not freed by rte_realloc() on failure */
91 filter
->supported_match
= NULL
;
92 filter
->supported_match_num
= 0;
97 sfc_filter_attach(struct sfc_adapter
*sa
)
101 sfc_log_init(sa
, "entry");
103 rc
= efx_filter_init(sa
->nic
);
105 goto fail_filter_init
;
107 rc
= sfc_filter_cache_match_supported(sa
);
109 goto fail_cache_match_supported
;
111 efx_filter_fini(sa
->nic
);
113 sfc_log_init(sa
, "done");
117 fail_cache_match_supported
:
118 efx_filter_fini(sa
->nic
);
121 sfc_log_init(sa
, "failed %d", rc
);
126 sfc_filter_detach(struct sfc_adapter
*sa
)
128 struct sfc_filter
*filter
= &sa
->filter
;
130 sfc_log_init(sa
, "entry");
132 rte_free(filter
->supported_match
);
133 filter
->supported_match
= NULL
;
134 filter
->supported_match_num
= 0;
136 sfc_log_init(sa
, "done");