From 8d01b9cd70a67cdafd5b965a70420c3bd7fb3f82 Mon Sep 17 00:00:00 2001 From: Luca Boccassi Date: Thu, 1 Nov 2018 11:59:50 +0000 Subject: New upstream version 18.11-rc1 Change-Id: Iaa71986dd6332e878d8f4bf493101b2bbc6313bb Signed-off-by: Luca Boccassi --- drivers/bus/pci/pci_params.c | 78 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 drivers/bus/pci/pci_params.c (limited to 'drivers/bus/pci/pci_params.c') diff --git a/drivers/bus/pci/pci_params.c b/drivers/bus/pci/pci_params.c new file mode 100644 index 00000000..3192e9c9 --- /dev/null +++ b/drivers/bus/pci/pci_params.c @@ -0,0 +1,78 @@ +/* SPDX-License-Identifier: BSD-3-Clause + * Copyright 2018 Gaëtan Rivet + */ + +#include +#include +#include +#include +#include +#include + +#include "private.h" + +enum pci_params { + RTE_PCI_PARAM_ADDR, + RTE_PCI_PARAM_MAX, +}; + +static const char * const pci_params_keys[] = { + [RTE_PCI_PARAM_ADDR] = "addr", + [RTE_PCI_PARAM_MAX] = NULL, +}; + +static int +pci_addr_kv_cmp(const char *key __rte_unused, + const char *value, + void *_addr2) +{ + struct rte_pci_addr _addr1; + struct rte_pci_addr *addr1 = &_addr1; + struct rte_pci_addr *addr2 = _addr2; + + if (rte_pci_addr_parse(value, addr1)) + return -1; + return -abs(rte_pci_addr_cmp(addr1, addr2)); +} + +static int +pci_dev_match(const struct rte_device *dev, + const void *_kvlist) +{ + const struct rte_kvargs *kvlist = _kvlist; + const struct rte_pci_device *pdev; + + if (kvlist == NULL) + /* Empty string matches everything. */ + return 0; + pdev = RTE_DEV_TO_PCI_CONST(dev); + /* if any field does not match. */ + if (rte_kvargs_process(kvlist, pci_params_keys[RTE_PCI_PARAM_ADDR], + &pci_addr_kv_cmp, + (void *)(intptr_t)&pdev->addr)) + return 1; + return 0; +} + +void * +rte_pci_dev_iterate(const void *start, + const char *str, + const struct rte_dev_iterator *it __rte_unused) +{ + rte_bus_find_device_t find_device; + struct rte_kvargs *kvargs = NULL; + struct rte_device *dev; + + if (str != NULL) { + kvargs = rte_kvargs_parse(str, pci_params_keys); + if (kvargs == NULL) { + RTE_LOG(ERR, EAL, "cannot parse argument list\n"); + rte_errno = EINVAL; + return NULL; + } + } + find_device = rte_pci_bus.bus.find_device; + dev = find_device(start, pci_dev_match, kvargs); + rte_kvargs_free(kvargs); + return dev; +} -- cgit 1.2.3-korg