e815a7f693
Implement the operators of an rte_class for the ethdev abstraction layer. Register the layer as such. Signed-off-by: Gaetan Rivet <gaetan.rivet@6wind.com> Acked-by: Andrew Rybchenko <arybchenko@solarflare.com>
80 lines
1.6 KiB
C
80 lines
1.6 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(c) 2018 Gaëtan Rivet
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*/
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#include <string.h>
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#include <rte_class.h>
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#include <rte_compat.h>
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#include <rte_errno.h>
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#include <rte_kvargs.h>
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#include <rte_log.h>
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#include "rte_ethdev.h"
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#include "rte_ethdev_core.h"
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#include "ethdev_private.h"
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enum eth_params {
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RTE_ETH_PARAMS_MAX,
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};
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static const char * const eth_params_keys[] = {
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[RTE_ETH_PARAMS_MAX] = NULL,
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};
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struct eth_dev_match_arg {
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struct rte_device *device;
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struct rte_kvargs *kvlist;
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};
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#define eth_dev_match_arg(d, k) \
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(&(const struct eth_dev_match_arg) { \
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.device = (d), \
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.kvlist = (k), \
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})
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static int
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eth_dev_match(const struct rte_eth_dev *edev,
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const void *_arg)
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{
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const struct eth_dev_match_arg *arg = _arg;
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const struct rte_kvargs *kvlist = arg->kvlist;
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if (edev->state == RTE_ETH_DEV_UNUSED)
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return -1;
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if (edev->device != arg->device)
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return -1;
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if (kvlist == NULL)
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/* Empty string matches everything. */
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return 0;
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return 0;
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}
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static void *
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eth_dev_iterate(const void *start,
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const char *str,
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const struct rte_dev_iterator *it)
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{
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struct rte_kvargs *kvargs = NULL;
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struct rte_eth_dev *edev = NULL;
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if (str != NULL) {
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kvargs = rte_kvargs_parse(str, eth_params_keys);
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if (kvargs == NULL) {
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RTE_LOG(ERR, EAL, "cannot parse argument list\n");
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rte_errno = EINVAL;
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return NULL;
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}
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}
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edev = eth_find_device(start, eth_dev_match,
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eth_dev_match_arg(it->device, kvargs));
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rte_kvargs_free(kvargs);
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return edev;
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}
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struct rte_class rte_class_eth = {
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.dev_iterate = eth_dev_iterate,
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};
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RTE_REGISTER_CLASS(eth, rte_class_eth);
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