540 lines
17 KiB
C
540 lines
17 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later
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* Copyright © 2020 VMware, Inc. */
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#include "alloc-util.h"
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#include "netlink-util.h"
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#include "networkd-manager.h"
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#include "networkd-sriov.h"
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#include "parse-util.h"
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#include "set.h"
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#include "string-util.h"
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static int sr_iov_new(SRIOV **ret) {
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SRIOV *sr_iov;
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sr_iov = new(SRIOV, 1);
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if (!sr_iov)
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return -ENOMEM;
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*sr_iov = (SRIOV) {
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.vf = (uint32_t) -1,
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.vlan_proto = ETH_P_8021Q,
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.vf_spoof_check_setting = -1,
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.trust = -1,
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.query_rss = -1,
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.link_state = _SR_IOV_LINK_STATE_INVALID,
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};
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*ret = TAKE_PTR(sr_iov);
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return 0;
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}
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static int sr_iov_new_static(Network *network, const char *filename, unsigned section_line, SRIOV **ret) {
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_cleanup_(network_config_section_freep) NetworkConfigSection *n = NULL;
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_cleanup_(sr_iov_freep) SRIOV *sr_iov = NULL;
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SRIOV *existing = NULL;
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int r;
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assert(network);
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assert(ret);
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assert(filename);
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assert(section_line > 0);
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r = network_config_section_new(filename, section_line, &n);
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if (r < 0)
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return r;
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existing = ordered_hashmap_get(network->sr_iov_by_section, n);
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if (existing) {
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*ret = existing;
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return 0;
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}
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r = sr_iov_new(&sr_iov);
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if (r < 0)
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return r;
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sr_iov->network = network;
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sr_iov->section = TAKE_PTR(n);
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r = ordered_hashmap_ensure_allocated(&network->sr_iov_by_section, &network_config_hash_ops);
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if (r < 0)
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return r;
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r = ordered_hashmap_put(network->sr_iov_by_section, sr_iov->section, sr_iov);
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if (r < 0)
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return r;
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*ret = TAKE_PTR(sr_iov);
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return 0;
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}
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SRIOV *sr_iov_free(SRIOV *sr_iov) {
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if (!sr_iov)
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return NULL;
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if (sr_iov->network && sr_iov->section)
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ordered_hashmap_remove(sr_iov->network->sr_iov_by_section, sr_iov->section);
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network_config_section_free(sr_iov->section);
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return mfree(sr_iov);
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}
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static int sr_iov_handler(sd_netlink *rtnl, sd_netlink_message *m, Link *link) {
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int r;
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assert(link);
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assert(link->sr_iov_messages > 0);
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link->sr_iov_messages--;
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if (IN_SET(link->state, LINK_STATE_FAILED, LINK_STATE_LINGER))
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return 1;
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r = sd_netlink_message_get_errno(m);
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if (r < 0 && r != -EEXIST) {
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log_link_message_error_errno(link, m, r, "Could not set up SR-IOV");
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link_enter_failed(link);
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return 1;
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}
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if (link->sr_iov_messages == 0) {
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log_link_debug(link, "SR-IOV configured");
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link->sr_iov_configured = true;
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link_check_ready(link);
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}
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return 1;
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}
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static int sr_iov_configure(Link *link, SRIOV *sr_iov) {
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_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *req = NULL;
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int r;
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assert(link);
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assert(link->manager);
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assert(link->manager->rtnl);
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assert(link->ifindex > 0);
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log_link_debug(link, "Setting SR-IOV virtual function %"PRIu32, sr_iov->vf);
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r = sd_rtnl_message_new_link(link->manager->rtnl, &req, RTM_SETLINK, link->ifindex);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not allocate RTM_SETLINK message: %m");
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r = sd_netlink_message_open_container(req, IFLA_VFINFO_LIST);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not open IFLA_VFINFO_LIST container: %m");
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r = sd_netlink_message_open_container(req, IFLA_VF_INFO);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not open IFLA_VF_INFO container: %m");
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if (!ether_addr_is_null(&sr_iov->mac)) {
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struct ifla_vf_mac ivm = {
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.vf = sr_iov->vf,
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};
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memcpy(ivm.mac, &sr_iov->mac, ETH_ALEN);
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r = sd_netlink_message_append_data(req, IFLA_VF_MAC, &ivm, sizeof(struct ifla_vf_mac));
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append IFLA_VF_MAC: %m");
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}
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if (sr_iov->vf_spoof_check_setting >= 0) {
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struct ifla_vf_spoofchk ivs = {
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.vf = sr_iov->vf,
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.setting = sr_iov->vf_spoof_check_setting,
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};
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r = sd_netlink_message_append_data(req, IFLA_VF_SPOOFCHK, &ivs, sizeof(struct ifla_vf_spoofchk));
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append IFLA_VF_SPOOFCHK: %m");
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}
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if (sr_iov->query_rss >= 0) {
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struct ifla_vf_rss_query_en ivs = {
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.vf = sr_iov->vf,
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.setting = sr_iov->query_rss,
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};
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r = sd_netlink_message_append_data(req, IFLA_VF_RSS_QUERY_EN, &ivs, sizeof(struct ifla_vf_rss_query_en));
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append IFLA_VF_RSS_QUERY_EN: %m");
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}
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if (sr_iov->trust >= 0) {
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struct ifla_vf_trust ivt = {
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.vf = sr_iov->vf,
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.setting = sr_iov->trust,
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};
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r = sd_netlink_message_append_data(req, IFLA_VF_TRUST, &ivt, sizeof(struct ifla_vf_trust));
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append IFLA_VF_TRUST: %m");
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}
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if (sr_iov->link_state >= 0) {
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struct ifla_vf_link_state ivl = {
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.vf = sr_iov->vf,
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.link_state = sr_iov->link_state,
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};
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r = sd_netlink_message_append_data(req, IFLA_VF_LINK_STATE, &ivl, sizeof(struct ifla_vf_link_state));
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append IFLA_VF_LINK_STATE: %m");
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}
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if (sr_iov->vlan > 0) {
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/* Because of padding, first the buffer must be initialized with 0. */
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struct ifla_vf_vlan_info ivvi = {};
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ivvi.vf = sr_iov->vf;
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ivvi.vlan = sr_iov->vlan;
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ivvi.qos = sr_iov->qos;
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ivvi.vlan_proto = htobe16(sr_iov->vlan_proto);
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r = sd_netlink_message_open_container(req, IFLA_VF_VLAN_LIST);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not open IFLA_VF_VLAN_LIST container: %m");
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r = sd_netlink_message_append_data(req, IFLA_VF_VLAN_INFO, &ivvi, sizeof(struct ifla_vf_vlan_info));
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if (r < 0)
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return log_link_error_errno(link, r, "Could not append IFLA_VF_VLAN_INFO: %m");
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r = sd_netlink_message_close_container(req);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not close IFLA_VF_VLAN_LIST container: %m");
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}
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r = sd_netlink_message_close_container(req);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not close IFLA_VF_INFO container: %m");
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r = sd_netlink_message_close_container(req);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not close IFLA_VFINFO_LIST container: %m");
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r = netlink_call_async(link->manager->rtnl, NULL, req, sr_iov_handler,
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link_netlink_destroy_callback, link);
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if (r < 0)
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return log_link_error_errno(link, r, "Could not send rtnetlink message: %m");
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link_ref(link);
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link->sr_iov_messages++;
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return 0;
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}
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int link_configure_sr_iov(Link *link) {
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SRIOV *sr_iov;
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int r;
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assert(link);
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assert(link->network);
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if (link->sr_iov_messages != 0) {
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log_link_debug(link, "SR-IOV is configuring.");
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return 0;
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}
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link->sr_iov_configured = false;
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ORDERED_HASHMAP_FOREACH(sr_iov, link->network->sr_iov_by_section) {
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r = sr_iov_configure(link, sr_iov);
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if (r < 0)
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return r;
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}
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if (link->sr_iov_messages == 0)
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link->sr_iov_configured = true;
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else
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log_link_debug(link, "Configuring SR-IOV");
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return 0;
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}
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static int sr_iov_section_verify(SRIOV *sr_iov) {
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assert(sr_iov);
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if (section_is_invalid(sr_iov->section))
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return -EINVAL;
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if (sr_iov->vf == (uint32_t) -1)
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return log_warning_errno(SYNTHETIC_ERRNO(EINVAL),
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"%s: [SRIOV] section without VirtualFunction= field configured. "
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"Ignoring [SRIOV] section from line %u.",
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sr_iov->section->filename, sr_iov->section->line);
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return 0;
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}
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void network_drop_invalid_sr_iov(Network *network) {
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SRIOV *sr_iov;
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assert(network);
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ORDERED_HASHMAP_FOREACH(sr_iov, network->sr_iov_by_section)
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if (sr_iov_section_verify(sr_iov) < 0)
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sr_iov_free(sr_iov);
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}
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int config_parse_sr_iov_uint32(
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const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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_cleanup_(sr_iov_free_or_set_invalidp) SRIOV *sr_iov = NULL;
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Network *network = data;
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uint32_t k;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = sr_iov_new_static(network, filename, section_line, &sr_iov);
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if (r < 0)
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return r;
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if (isempty(rvalue)) {
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if (streq(lvalue, "VirtualFunction"))
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sr_iov->vf = (uint32_t) -1;
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else if (streq(lvalue, "VLANId"))
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sr_iov->vlan = 0;
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else if (streq(lvalue, "QualityOfService"))
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sr_iov->qos = 0;
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else
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assert_not_reached("Invalid lvalue");
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TAKE_PTR(sr_iov);
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return 0;
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}
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r = safe_atou32(rvalue, &k);
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, filename, line, r,
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"Failed to parse SR-IOV '%s=', ignoring assignment: %s", lvalue, rvalue);
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return 0;
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}
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if (streq(lvalue, "VLANId")) {
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if (k == 0 || k > 4095) {
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log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid SR-IOV VLANId: %d", k);
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return 0;
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}
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sr_iov->vlan = k;
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} else if (streq(lvalue, "VirtualFunction")) {
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if (k >= INT_MAX) {
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log_syntax(unit, LOG_WARNING, filename, line, 0, "Invalid SR-IOV virtual function: %d", k);
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return 0;
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}
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sr_iov->vf = k;
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} else if (streq(lvalue, "QualityOfService"))
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sr_iov->qos = k;
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else
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assert_not_reached("Invalid lvalue");
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TAKE_PTR(sr_iov);
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return 0;
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}
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int config_parse_sr_iov_vlan_proto(
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const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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_cleanup_(sr_iov_free_or_set_invalidp) SRIOV *sr_iov = NULL;
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Network *network = data;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = sr_iov_new_static(network, filename, section_line, &sr_iov);
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if (r < 0)
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return r;
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if (isempty(rvalue) || streq(rvalue, "802.1Q"))
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sr_iov->vlan_proto = ETH_P_8021Q;
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else if (streq(rvalue, "802.1ad"))
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sr_iov->vlan_proto = ETH_P_8021AD;
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else {
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log_syntax(unit, LOG_WARNING, filename, line, 0,
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"Invalid SR-IOV '%s=', ignoring assignment: %s", lvalue, rvalue);
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return 0;
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}
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TAKE_PTR(sr_iov);
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return 0;
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}
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int config_parse_sr_iov_link_state(
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const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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_cleanup_(sr_iov_free_or_set_invalidp) SRIOV *sr_iov = NULL;
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Network *network = data;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = sr_iov_new_static(network, filename, section_line, &sr_iov);
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if (r < 0)
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return r;
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/* Unfortunately, SR_IOV_LINK_STATE_DISABLE is 2, not 0. So, we cannot use
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* DEFINE_STRING_TABLE_LOOKUP_WITH_BOOLEAN() macro. */
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if (isempty(rvalue)) {
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sr_iov->link_state = _SR_IOV_LINK_STATE_INVALID;
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TAKE_PTR(sr_iov);
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return 0;
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}
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if (streq(rvalue, "auto")) {
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sr_iov->link_state = SR_IOV_LINK_STATE_AUTO;
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TAKE_PTR(sr_iov);
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return 0;
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}
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r = parse_boolean(rvalue);
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, filename, line, r,
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"Failed to parse SR-IOV '%s=', ignoring assignment: %s", lvalue, rvalue);
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return 0;
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}
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sr_iov->link_state = r ? SR_IOV_LINK_STATE_ENABLE : SR_IOV_LINK_STATE_DISABLE;
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TAKE_PTR(sr_iov);
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return 0;
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}
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int config_parse_sr_iov_boolean(
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const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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_cleanup_(sr_iov_free_or_set_invalidp) SRIOV *sr_iov = NULL;
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Network *network = data;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = sr_iov_new_static(network, filename, section_line, &sr_iov);
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if (r < 0)
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return r;
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if (isempty(rvalue)) {
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if (streq(lvalue, "MACSpoofCheck"))
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sr_iov->vf_spoof_check_setting = -1;
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else if (streq(lvalue, "QueryReceiveSideScaling"))
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sr_iov->query_rss = -1;
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else if (streq(lvalue, "Trust"))
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sr_iov->trust = -1;
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else
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assert_not_reached("Invalid lvalue");
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TAKE_PTR(sr_iov);
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return 0;
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}
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r = parse_boolean(rvalue);
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, filename, line, r, "Failed to parse '%s=', ignoring: %s", lvalue, rvalue);
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return 0;
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}
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if (streq(lvalue, "MACSpoofCheck"))
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sr_iov->vf_spoof_check_setting = r;
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else if (streq(lvalue, "QueryReceiveSideScaling"))
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sr_iov->query_rss = r;
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else if (streq(lvalue, "Trust"))
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sr_iov->trust = r;
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else
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assert_not_reached("Invalid lvalue");
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TAKE_PTR(sr_iov);
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return 0;
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}
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int config_parse_sr_iov_mac(
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const char *unit,
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const char *filename,
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unsigned line,
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const char *section,
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unsigned section_line,
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const char *lvalue,
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int ltype,
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const char *rvalue,
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void *data,
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void *userdata) {
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_cleanup_(sr_iov_free_or_set_invalidp) SRIOV *sr_iov = NULL;
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Network *network = data;
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int r;
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assert(filename);
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assert(lvalue);
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assert(rvalue);
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assert(data);
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r = sr_iov_new_static(network, filename, section_line, &sr_iov);
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if (r < 0)
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return r;
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if (isempty(rvalue)) {
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sr_iov->mac = ETHER_ADDR_NULL;
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TAKE_PTR(sr_iov);
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return 0;
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}
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r = ether_addr_from_string(rvalue, &sr_iov->mac);
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if (r < 0) {
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log_syntax(unit, LOG_WARNING, filename, line, r,
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"Failed to parse SR-IOV '%s=', ignoring assignment: %s", lvalue, rvalue);
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return 0;
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}
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TAKE_PTR(sr_iov);
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return 0;
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}
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