1acb7f5474
Make rte_driver opaque for non internal users. This will make extending this object possible without breaking the ABI. Introduce a new driver header and move rte_driver definition. Update drivers and library to use the internal header. Some applications may have been dereferencing rte_driver objects, mark this object's accessors as stable. Signed-off-by: David Marchand <david.marchand@redhat.com> Acked-by: Bruce Richardson <bruce.richardson@intel.com> Acked-by: Jay Jayatheerthan <jay.jayatheerthan@intel.com> Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com> Acked-by: Akhil Goyal <gakhil@marvell.com> Acked-by: Abhinandan Gujjar <abhinandan.gujjar@intel.com>
125 lines
2.7 KiB
C
125 lines
2.7 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright 2018 Gaëtan Rivet
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*/
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#include <sys/queue.h>
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#include <bus_driver.h>
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#include <rte_bus_pci.h>
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#include <dev_driver.h>
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#include <rte_errno.h>
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#include <rte_kvargs.h>
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#include <rte_devargs.h>
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#include <rte_pci.h>
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#include <rte_debug.h>
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#include "private.h"
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enum pci_params {
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RTE_PCI_PARAM_ADDR,
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RTE_PCI_PARAM_MAX,
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};
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static const char * const pci_params_keys[] = {
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[RTE_PCI_PARAM_ADDR] = "addr",
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[RTE_PCI_PARAM_MAX] = NULL,
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};
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static int
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pci_addr_kv_cmp(const char *key __rte_unused,
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const char *value,
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void *_addr2)
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{
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struct rte_pci_addr _addr1;
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struct rte_pci_addr *addr1 = &_addr1;
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struct rte_pci_addr *addr2 = _addr2;
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if (rte_pci_addr_parse(value, addr1))
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return -1;
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return -abs(rte_pci_addr_cmp(addr1, addr2));
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}
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static int
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pci_dev_match(const struct rte_device *dev,
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const void *_kvlist)
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{
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const struct rte_kvargs *kvlist = _kvlist;
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const struct rte_pci_device *pdev;
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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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pdev = RTE_DEV_TO_PCI_CONST(dev);
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/* if any field does not match. */
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if (rte_kvargs_process(kvlist, pci_params_keys[RTE_PCI_PARAM_ADDR],
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&pci_addr_kv_cmp,
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(void *)(intptr_t)&pdev->addr))
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return 1;
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return 0;
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}
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void *
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rte_pci_dev_iterate(const void *start,
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const char *str,
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const struct rte_dev_iterator *it __rte_unused)
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{
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rte_bus_find_device_t find_device;
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struct rte_kvargs *kvargs = NULL;
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struct rte_device *dev;
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if (str != NULL) {
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kvargs = rte_kvargs_parse(str, pci_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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find_device = rte_pci_bus.bus.find_device;
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dev = find_device(start, pci_dev_match, kvargs);
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rte_kvargs_free(kvargs);
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return dev;
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}
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int
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rte_pci_devargs_parse(struct rte_devargs *da)
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{
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struct rte_kvargs *kvargs;
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const char *addr_str;
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struct rte_pci_addr addr;
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int ret = 0;
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if (da == NULL || da->bus_str == NULL)
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return 0;
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kvargs = rte_kvargs_parse(da->bus_str, NULL);
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if (kvargs == NULL) {
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RTE_LOG(ERR, EAL, "cannot parse argument list: %s\n",
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da->bus_str);
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ret = -ENODEV;
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goto out;
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}
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addr_str = rte_kvargs_get(kvargs, pci_params_keys[RTE_PCI_PARAM_ADDR]);
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if (addr_str == NULL) {
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RTE_LOG(DEBUG, EAL, "No PCI address specified using '%s=<id>' in: %s\n",
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pci_params_keys[RTE_PCI_PARAM_ADDR], da->bus_str);
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goto out;
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}
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ret = rte_pci_addr_parse(addr_str, &addr);
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if (ret != 0) {
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RTE_LOG(ERR, EAL, "PCI address invalid: %s\n", da->bus_str);
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ret = -EINVAL;
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goto out;
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}
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rte_pci_device_name(&addr, da->name, sizeof(da->name));
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out:
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rte_kvargs_free(kvargs);
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if (ret != 0)
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rte_errno = -ret;
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return ret;
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}
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