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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879// SPDX-License-Identifier: GPL-2.0-only
#include <linux/netdevice.h>#include <net/netdev_queues.h>#include <net/netdev_rx_queue.h>
#include "dev.h"
static int netdev_nop_validate_qcfg(struct net_device *dev, struct netdev_queue_config *qcfg, struct netlink_ext_ack *extack){ return 0;}
static int __netdev_queue_config(struct net_device *dev, int rxq_idx, struct netdev_queue_config *qcfg, struct netlink_ext_ack *extack, bool validate){ int (*validate_cb)(struct net_device *dev, struct netdev_queue_config *qcfg, struct netlink_ext_ack *extack); struct pp_memory_provider_params *mpp; int err;
validate_cb = netdev_nop_validate_qcfg; if (validate && dev->queue_mgmt_ops->ndo_validate_qcfg) validate_cb = dev->queue_mgmt_ops->ndo_validate_qcfg;
memset(qcfg, 0, sizeof(*qcfg));
/* Get defaults from the driver, in case user config not set */ if (dev->queue_mgmt_ops->ndo_default_qcfg) dev->queue_mgmt_ops->ndo_default_qcfg(dev, qcfg); err = validate_cb(dev, qcfg, extack); if (err) return err;
/* Apply MP overrides */ mpp = &__netif_get_rx_queue(dev, rxq_idx)->mp_params; if (mpp->rx_page_size) qcfg->rx_page_size = mpp->rx_page_size; err = validate_cb(dev, qcfg, extack); if (err) return err;
return 0;}
/** * netdev_queue_config() - get configuration for a given queue * @dev: net_device instance * @rxq_idx: index of the queue of interest * @qcfg: queue configuration struct (output) * * Render the configuration for a given queue. This helper should be used * by drivers which support queue configuration to retrieve config for * a particular queue. * * @qcfg is an output parameter and is always fully initialized by this * function. Some values may not be set by the user, drivers may either * deal with the "unset" values in @qcfg, or provide the callback * to populate defaults in queue_management_ops. */void netdev_queue_config(struct net_device *dev, int rxq_idx, struct netdev_queue_config *qcfg){ __netdev_queue_config(dev, rxq_idx, qcfg, NULL, false);}EXPORT_SYMBOL(netdev_queue_config);
int netdev_queue_config_validate(struct net_device *dev, int rxq_idx, struct netdev_queue_config *qcfg, struct netlink_ext_ack *extack){ return __netdev_queue_config(dev, rxq_idx, qcfg, extack, true);}