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udev/net: allow to set number of SR-IOV virtual functions

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This adds SR-IOVVirtualFunctions= setting in [Link] section.
This commit is contained in:
Yu Watanabe
2022-01-19 15:00:53 +09:00
parent bd29dfef8b
commit 41ce9d769d
8 changed files with 173 additions and 6 deletions
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src/udev/net/link-config-gperf.gperf
+1
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@@ -102,6 +102,7 @@ Link.RxMaxCoalescedHighFrames, config_parse_coalesce_u32,
Link.TxCoalesceHighSec, config_parse_coalesce_sec, 0, offsetof(LinkConfig, coalesce.tx_coalesce_usecs_high)
Link.TxMaxCoalescedHighFrames, config_parse_coalesce_u32, 0, offsetof(LinkConfig, coalesce.tx_max_coalesced_frames_high)
Link.CoalescePacketRateSampleIntervalSec, config_parse_coalesce_sec, 0, offsetof(LinkConfig, coalesce.rate_sample_interval)
Link.SR-IOVVirtualFunctions, config_parse_sr_iov_num_vfs, 0, offsetof(LinkConfig, sr_iov_num_vfs)
SR-IOV.VirtualFunction, config_parse_sr_iov_uint32, 0, offsetof(LinkConfig, sr_iov_by_section)
SR-IOV.VLANId, config_parse_sr_iov_uint32, 0, offsetof(LinkConfig, sr_iov_by_section)
SR-IOV.QualityOfService, config_parse_sr_iov_uint32, 0, offsetof(LinkConfig, sr_iov_by_section)
src/udev/net/link-config.c
+7 -1
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@@ -250,6 +250,7 @@ int link_load_one(LinkConfigContext *ctx, const char *filename) {
.txqueuelen = UINT32_MAX,
.coalesce.use_adaptive_rx_coalesce = -1,
.coalesce.use_adaptive_tx_coalesce = -1,
.sr_iov_num_vfs = UINT32_MAX,
};
for (i = 0; i < ELEMENTSOF(config->features); i++)
@@ -290,7 +291,7 @@ int link_load_one(LinkConfigContext *ctx, const char *filename) {
if (r < 0)
return r;
r = sr_iov_drop_invalid_sections(config->sr_iov_by_section);
r = sr_iov_drop_invalid_sections(config->sr_iov_num_vfs, config->sr_iov_by_section);
if (r < 0)
return r;
@@ -874,6 +875,11 @@ static int link_apply_sr_iov_config(Link *link, sd_netlink **rtnl) {
assert(link);
assert(link->config);
assert(link->device);
r = sr_iov_set_num_vfs(link->device, link->config->sr_iov_num_vfs, link->config->sr_iov_by_section);
if (r < 0)
log_link_warning_errno(link, r, "Failed to set the number of SR-IOV virtual functions, ignoring: %m");
ORDERED_HASHMAP_FOREACH(sr_iov, link->config->sr_iov_by_section) {
r = sr_iov_configure(link, rtnl, sr_iov);
src/udev/net/link-config.h
+1
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@@ -77,6 +77,7 @@ struct LinkConfig {
int autoneg_flow_control;
netdev_coalesce_param coalesce;
uint32_t sr_iov_num_vfs;
OrderedHashmap *sr_iov_by_section;
LIST_FIELDS(LinkConfig, configs);