2 * Copyright (c) 2016 Solarflare Communications Inc.
5 * This software was jointly developed between OKTET Labs (under contract
6 * for Solarflare) and Solarflare Communications, Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions are met:
11 * 1. Redistributions of source code must retain the above copyright notice,
12 * this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright notice,
14 * this list of conditions and the following disclaimer in the documentation
15 * and/or other materials provided with the distribution.
17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
19 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
21 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
22 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
23 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
24 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
26 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
27 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 sfc_rx_qinit_info(struct sfc_adapter *sa, unsigned int sw_index)
39 struct sfc_rxq_info *rxq_info = &sa->rxq_info[sw_index];
40 unsigned int max_entries;
42 max_entries = EFX_RXQ_MAXNDESCS;
43 SFC_ASSERT(rte_is_power_of_2(max_entries));
45 rxq_info->max_entries = max_entries;
51 * Initialize Rx subsystem.
53 * Called at device configuration stage when number of receive queues is
54 * specified together with other device level receive configuration.
56 * It should be used to allocate NUMA-unaware resources.
59 sfc_rx_init(struct sfc_adapter *sa)
61 unsigned int sw_index;
64 sa->rxq_count = sa->eth_dev->data->nb_rx_queues;
67 sa->rxq_info = rte_calloc_socket("sfc-rxqs", sa->rxq_count,
68 sizeof(struct sfc_rxq_info), 0,
70 if (sa->rxq_info == NULL)
73 for (sw_index = 0; sw_index < sa->rxq_count; ++sw_index) {
74 rc = sfc_rx_qinit_info(sa, sw_index);
76 goto fail_rx_qinit_info;
82 rte_free(sa->rxq_info);
87 sfc_log_init(sa, "failed %d", rc);
92 * Shutdown Rx subsystem.
94 * Called at device close stage, for example, before device
95 * reconfiguration or shutdown.
98 sfc_rx_fini(struct sfc_adapter *sa)
100 rte_free(sa->rxq_info);