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/* SPDX-License-Identifier: LGPL-2.1-or-later
* Copyright © 2020 VMware, Inc. */
#include "networkd-link.h"
#include "networkd-manager.h"
#include "networkd-queue.h"
#include "networkd-sriov.h"
static int sr_iov_handler(sd_netlink *rtnl, sd_netlink_message *m, Request *req, Link *link, SRIOV *sr_iov) {
int r;
assert(m);
assert(link);
r = sd_netlink_message_get_errno(m);
if (r < 0 && r != -EEXIST) {
log_link_message_error_errno(link, m, r, "Could not set up SR-IOV");
link_enter_failed(link);
return 1;
}
if (link->sr_iov_messages == 0) {
log_link_debug(link, "SR-IOV configured");
link->sr_iov_configured = true;
link_check_ready(link);
}
return 1;
}
static int sr_iov_configure(SRIOV *sr_iov, Link *link, Request *req) {
_cleanup_(sd_netlink_message_unrefp) sd_netlink_message *m = NULL;
int r;
assert(sr_iov);
assert(link);
assert(link->manager);
assert(link->manager->rtnl);
assert(link->ifindex > 0);
assert(req);
log_link_debug(link, "Setting SR-IOV virtual function %"PRIu32".", sr_iov->vf);
r = sd_rtnl_message_new_link(link->manager->rtnl, &m, RTM_SETLINK, link->ifindex);
if (r < 0)
return r;
r = sr_iov_set_netlink_message(sr_iov, m);
if (r < 0)
return r;
return request_call_netlink_async(link->manager->rtnl, m, req);
}
static int sr_iov_process_request(Request *req, Link *link, SRIOV *sr_iov) {
int r;
assert(req);
assert(link);
assert(sr_iov);
if (!IN_SET(link->state, LINK_STATE_CONFIGURING, LINK_STATE_CONFIGURED))
return 0;
r = sr_iov_configure(sr_iov, link, req);
if (r < 0)
return log_link_warning_errno(link, r,
"Failed to configure SR-IOV virtual function %"PRIu32": %m",
sr_iov->vf);
return 1;
}
int link_request_sr_iov_vfs(Link *link) {
SRIOV *sr_iov;
int r;
assert(link);
assert(link->network);
link->sr_iov_configured = false;
ORDERED_HASHMAP_FOREACH(sr_iov, link->network->sr_iov_by_section) {
r = link_queue_request_safe(link, REQUEST_TYPE_SRIOV,
sr_iov, NULL,
sr_iov_hash_func,
sr_iov_compare_func,
sr_iov_process_request,
&link->sr_iov_messages,
sr_iov_handler,
NULL);
if (r < 0)
return log_link_warning_errno(link, r,
"Failed to request SR-IOV virtual function %"PRIu32": %m",
sr_iov->vf);
}
if (link->sr_iov_messages == 0) {
link->sr_iov_configured = true;
link_check_ready(link);
} else
log_link_debug(link, "Configuring SR-IOV");
return 0;
}
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