diff options
author | 2017-05-16 14:51:32 +0200 | |
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committer | 2017-05-16 14:51:32 +0200 | |
commit | fca143f059a0bddd7d47b8dc2df646a891b0eb0f (patch) | |
tree | 4bfeadc905c977e45e54a90c42330553b8942e4e /drivers/net/sfc/sfc_dp.c | |
parent | ce3d555e43e3795b5d9507fcfc76b7a0a92fd0d6 (diff) |
Imported Upstream version 17.05
Diffstat (limited to 'drivers/net/sfc/sfc_dp.c')
-rw-r--r-- | drivers/net/sfc/sfc_dp.c | 100 |
1 files changed, 100 insertions, 0 deletions
diff --git a/drivers/net/sfc/sfc_dp.c b/drivers/net/sfc/sfc_dp.c new file mode 100644 index 00000000..860aa921 --- /dev/null +++ b/drivers/net/sfc/sfc_dp.c @@ -0,0 +1,100 @@ +/*- + * BSD LICENSE + * + * Copyright (c) 2017 Solarflare Communications Inc. + * All rights reserved. + * + * This software was jointly developed between OKTET Labs (under contract + * for Solarflare) and Solarflare Communications, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. 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. + * + * 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 <string.h> +#include <errno.h> + +#include <rte_log.h> + +#include "sfc_dp.h" + +void +sfc_dp_queue_init(struct sfc_dp_queue *dpq, uint16_t port_id, uint16_t queue_id, + const struct rte_pci_addr *pci_addr) +{ + dpq->port_id = port_id; + dpq->queue_id = queue_id; + dpq->pci_addr = *pci_addr; +} + +struct sfc_dp * +sfc_dp_find_by_name(struct sfc_dp_list *head, enum sfc_dp_type type, + const char *name) +{ + struct sfc_dp *entry; + + TAILQ_FOREACH(entry, head, links) { + if (entry->type != type) + continue; + + if (strcmp(entry->name, name) == 0) + return entry; + } + + return NULL; +} + +struct sfc_dp * +sfc_dp_find_by_caps(struct sfc_dp_list *head, enum sfc_dp_type type, + unsigned int avail_caps) +{ + struct sfc_dp *entry; + + TAILQ_FOREACH(entry, head, links) { + if (entry->type != type) + continue; + + /* Take the first matching */ + if (sfc_dp_match_hw_fw_caps(entry, avail_caps)) + return entry; + } + + return NULL; +} + +int +sfc_dp_register(struct sfc_dp_list *head, struct sfc_dp *entry) +{ + if (sfc_dp_find_by_name(head, entry->type, entry->name) != NULL) { + rte_log(RTE_LOG_ERR, RTE_LOGTYPE_PMD, + "sfc %s dapapath '%s' already registered\n", + entry->type == SFC_DP_RX ? "Rx" : + entry->type == SFC_DP_TX ? "Tx" : + "unknown", + entry->name); + return EEXIST; + } + + TAILQ_INSERT_TAIL(head, entry, links); + + return 0; +} |