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-rw-r--r--src/udev/net/ethtool-util.c123
-rw-r--r--src/udev/net/ethtool-util.h11
-rw-r--r--src/udev/net/link-config-gperf.gperf43
-rw-r--r--src/udev/net/link-config.c22
-rw-r--r--src/udev/net/link-config.h1
5 files changed, 166 insertions, 34 deletions
diff --git a/src/udev/net/ethtool-util.c b/src/udev/net/ethtool-util.c
index c00ff79123..708a665576 100644
--- a/src/udev/net/ethtool-util.c
+++ b/src/udev/net/ethtool-util.c
@@ -25,6 +25,7 @@
#include "conf-parser.h"
#include "ethtool-util.h"
#include "log.h"
+#include "socket-util.h"
#include "string-table.h"
#include "strxcpyx.h"
#include "util.h"
@@ -46,15 +47,22 @@ static const char* const wol_table[_WOL_MAX] = {
DEFINE_STRING_TABLE_LOOKUP(wol, WakeOnLan);
DEFINE_CONFIG_PARSE_ENUM(config_parse_wol, wol, WakeOnLan, "Failed to parse WakeOnLan setting");
+static const char* const netdev_feature_table[_NET_DEV_FEAT_MAX] = {
+ [NET_DEV_FEAT_GSO] = "tx-generic-segmentation",
+ [NET_DEV_FEAT_GRO] = "rx-gro",
+ [NET_DEV_FEAT_LRO] = "rx-lro",
+ [NET_DEV_FEAT_TSO] = "tx-tcp-segmentation",
+ [NET_DEV_FEAT_UFO] = "tx-udp-fragmentation",
+};
+
int ethtool_connect(int *ret) {
int fd;
assert_return(ret, -EINVAL);
- fd = socket(PF_INET, SOCK_DGRAM, 0);
+ fd = socket_ioctl_fd();
if (fd < 0)
- return -errno;
-
+ return fd;
*ret = fd;
return 0;
@@ -206,3 +214,112 @@ int ethtool_set_wol(int *fd, const char *ifname, WakeOnLan wol) {
return 0;
}
+
+static int ethtool_get_stringset(int *fd, struct ifreq *ifr, int stringset_id, struct ethtool_gstrings **gstrings) {
+ _cleanup_free_ struct ethtool_gstrings *strings = NULL;
+ struct {
+ struct ethtool_sset_info info;
+ uint32_t space;
+ } buffer = {
+ .info = {
+ .cmd = ETHTOOL_GSSET_INFO,
+ .sset_mask = UINT64_C(1) << stringset_id,
+ },
+ };
+ unsigned len;
+ int r;
+
+ ifr->ifr_data = (void *) &buffer.info;
+
+ r = ioctl(*fd, SIOCETHTOOL, ifr);
+ if (r < 0)
+ return -errno;
+
+ if (!buffer.info.sset_mask)
+ return -EINVAL;
+
+ len = buffer.info.data[0];
+
+ strings = malloc0(sizeof(struct ethtool_gstrings) + len * ETH_GSTRING_LEN);
+ if (!strings)
+ return -ENOMEM;
+
+ strings->cmd = ETHTOOL_GSTRINGS;
+ strings->string_set = stringset_id;
+ strings->len = len;
+
+ ifr->ifr_data = (void *) strings;
+
+ r = ioctl(*fd, SIOCETHTOOL, ifr);
+ if (r < 0)
+ return -errno;
+
+ *gstrings = strings;
+ strings = NULL;
+
+ return 0;
+}
+
+static int find_feature_index(struct ethtool_gstrings *strings, const char *feature) {
+ unsigned i;
+
+ for (i = 0; i < strings->len; i++) {
+ if (streq((char *) &strings->data[i * ETH_GSTRING_LEN], feature))
+ return i;
+ }
+
+ return -1;
+}
+
+int ethtool_set_features(int *fd, const char *ifname, NetDevFeature *features) {
+ _cleanup_free_ struct ethtool_gstrings *strings = NULL;
+ struct ethtool_sfeatures *sfeatures;
+ int block, bit, i, r;
+ struct ifreq ifr = {};
+
+ if (*fd < 0) {
+ r = ethtool_connect(fd);
+ if (r < 0)
+ return log_warning_errno(r, "link_config: could not connect to ethtool: %m");
+ }
+
+ strscpy(ifr.ifr_name, IFNAMSIZ, ifname);
+
+ r = ethtool_get_stringset(fd, &ifr, ETH_SS_FEATURES, &strings);
+ if (r < 0)
+ return log_warning_errno(r, "link_config: could not get ethtool features for %s", ifname);
+
+ sfeatures = alloca0(sizeof(struct ethtool_gstrings) + DIV_ROUND_UP(strings->len, 32U) * sizeof(sfeatures->features[0]));
+ sfeatures->cmd = ETHTOOL_SFEATURES;
+ sfeatures->size = DIV_ROUND_UP(strings->len, 32U);
+
+ for (i = 0; i < _NET_DEV_FEAT_MAX; i++) {
+
+ if (features[i] != -1) {
+
+ r = find_feature_index(strings, netdev_feature_table[i]);
+ if (r < 0) {
+ log_warning_errno(r, "link_config: could not find feature: %s", netdev_feature_table[i]);
+ continue;
+ }
+
+ block = r / 32;
+ bit = r % 32;
+
+ sfeatures->features[block].valid |= 1 << bit;
+
+ if (features[i])
+ sfeatures->features[block].requested |= 1 << bit;
+ else
+ sfeatures->features[block].requested &= ~(1 << bit);
+ }
+ }
+
+ ifr.ifr_data = (void *) sfeatures;
+
+ r = ioctl(*fd, SIOCETHTOOL, &ifr);
+ if (r < 0)
+ return log_warning_errno(r, "link_config: could not set ethtool features for %s", ifname);
+
+ return 0;
+}
diff --git a/src/udev/net/ethtool-util.h b/src/udev/net/ethtool-util.h
index 7716516e76..0744164653 100644
--- a/src/udev/net/ethtool-util.h
+++ b/src/udev/net/ethtool-util.h
@@ -38,11 +38,22 @@ typedef enum WakeOnLan {
_WOL_INVALID = -1
} WakeOnLan;
+typedef enum NetDevFeature {
+ NET_DEV_FEAT_GSO,
+ NET_DEV_FEAT_GRO,
+ NET_DEV_FEAT_LRO,
+ NET_DEV_FEAT_TSO,
+ NET_DEV_FEAT_UFO,
+ _NET_DEV_FEAT_MAX,
+ _NET_DEV_FEAT_INVALID = -1
+} NetDevFeature;
+
int ethtool_connect(int *ret);
int ethtool_get_driver(int *fd, const char *ifname, char **ret);
int ethtool_set_speed(int *fd, const char *ifname, unsigned int speed, Duplex duplex);
int ethtool_set_wol(int *fd, const char *ifname, WakeOnLan wol);
+int ethtool_set_features(int *fd, const char *ifname, NetDevFeature *features);
const char *duplex_to_string(Duplex d) _const_;
Duplex duplex_from_string(const char *d) _pure_;
diff --git a/src/udev/net/link-config-gperf.gperf b/src/udev/net/link-config-gperf.gperf
index b25e4b3344..f8b85cbd13 100644
--- a/src/udev/net/link-config-gperf.gperf
+++ b/src/udev/net/link-config-gperf.gperf
@@ -16,22 +16,27 @@ struct ConfigPerfItem;
%struct-type
%includes
%%
-Match.MACAddress, config_parse_hwaddr, 0, offsetof(link_config, match_mac)
-Match.OriginalName, config_parse_ifnames, 0, offsetof(link_config, match_name)
-Match.Path, config_parse_strv, 0, offsetof(link_config, match_path)
-Match.Driver, config_parse_strv, 0, offsetof(link_config, match_driver)
-Match.Type, config_parse_strv, 0, offsetof(link_config, match_type)
-Match.Host, config_parse_net_condition, CONDITION_HOST, offsetof(link_config, match_host)
-Match.Virtualization, config_parse_net_condition, CONDITION_VIRTUALIZATION, offsetof(link_config, match_virt)
-Match.KernelCommandLine, config_parse_net_condition, CONDITION_KERNEL_COMMAND_LINE, offsetof(link_config, match_kernel)
-Match.Architecture, config_parse_net_condition, CONDITION_ARCHITECTURE, offsetof(link_config, match_arch)
-Link.Description, config_parse_string, 0, offsetof(link_config, description)
-Link.MACAddressPolicy, config_parse_mac_policy, 0, offsetof(link_config, mac_policy)
-Link.MACAddress, config_parse_hwaddr, 0, offsetof(link_config, mac)
-Link.NamePolicy, config_parse_name_policy, 0, offsetof(link_config, name_policy)
-Link.Name, config_parse_ifname, 0, offsetof(link_config, name)
-Link.Alias, config_parse_ifalias, 0, offsetof(link_config, alias)
-Link.MTUBytes, config_parse_iec_size, 0, offsetof(link_config, mtu)
-Link.BitsPerSecond, config_parse_si_size, 0, offsetof(link_config, speed)
-Link.Duplex, config_parse_duplex, 0, offsetof(link_config, duplex)
-Link.WakeOnLan, config_parse_wol, 0, offsetof(link_config, wol)
+Match.MACAddress, config_parse_hwaddr, 0, offsetof(link_config, match_mac)
+Match.OriginalName, config_parse_ifnames, 0, offsetof(link_config, match_name)
+Match.Path, config_parse_strv, 0, offsetof(link_config, match_path)
+Match.Driver, config_parse_strv, 0, offsetof(link_config, match_driver)
+Match.Type, config_parse_strv, 0, offsetof(link_config, match_type)
+Match.Host, config_parse_net_condition, CONDITION_HOST, offsetof(link_config, match_host)
+Match.Virtualization, config_parse_net_condition, CONDITION_VIRTUALIZATION, offsetof(link_config, match_virt)
+Match.KernelCommandLine, config_parse_net_condition, CONDITION_KERNEL_COMMAND_LINE, offsetof(link_config, match_kernel)
+Match.Architecture, config_parse_net_condition, CONDITION_ARCHITECTURE, offsetof(link_config, match_arch)
+Link.Description, config_parse_string, 0, offsetof(link_config, description)
+Link.MACAddressPolicy, config_parse_mac_policy, 0, offsetof(link_config, mac_policy)
+Link.MACAddress, config_parse_hwaddr, 0, offsetof(link_config, mac)
+Link.NamePolicy, config_parse_name_policy, 0, offsetof(link_config, name_policy)
+Link.Name, config_parse_ifname, 0, offsetof(link_config, name)
+Link.Alias, config_parse_ifalias, 0, offsetof(link_config, alias)
+Link.MTUBytes, config_parse_iec_size, 0, offsetof(link_config, mtu)
+Link.BitsPerSecond, config_parse_si_size, 0, offsetof(link_config, speed)
+Link.Duplex, config_parse_duplex, 0, offsetof(link_config, duplex)
+Link.WakeOnLan, config_parse_wol, 0, offsetof(link_config, wol)
+Link.GenericSegmentationOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_GSO])
+Link.TCPSegmentationOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_TSO])
+Link.UDPSegmentationOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_UFO])
+Link.GenericReceiveOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_GRO])
+Link.LargeReceiveOffload, config_parse_tristate, 0, offsetof(link_config, features[NET_DEV_FEAT_LRO])
diff --git a/src/udev/net/link-config.c b/src/udev/net/link-config.c
index c66504102f..ece9248c2a 100644
--- a/src/udev/net/link-config.c
+++ b/src/udev/net/link-config.c
@@ -168,6 +168,8 @@ static int load_link(link_config_ctx *ctx, const char *filename) {
link->wol = _WOL_INVALID;
link->duplex = _DUP_INVALID;
+ memset(&link->features, -1, _NET_DEV_FEAT_MAX);
+
r = config_parse(NULL, filename, file,
"Match\0Link\0Ethernet\0",
config_item_perf_lookup, link_config_gperf_lookup,
@@ -189,20 +191,12 @@ static int load_link(link_config_ctx *ctx, const char *filename) {
}
static bool enable_name_policy(void) {
- _cleanup_free_ char *line = NULL;
- const char *word, *state;
+ _cleanup_free_ char *value = NULL;
int r;
- size_t l;
- r = proc_cmdline(&line);
- if (r < 0) {
- log_warning_errno(r, "Failed to read /proc/cmdline, ignoring: %m");
- return true;
- }
-
- FOREACH_WORD_QUOTED(word, l, line, state)
- if (strneq(word, "net.ifnames=0", l))
- return false;
+ r = get_proc_cmdline_key("net.ifnames=", &value);
+ if (r > 0 && streq(value, "0"))
+ return false;
return true;
}
@@ -397,6 +391,10 @@ int link_config_apply(link_config_ctx *ctx, link_config *config,
log_warning_errno(r, "Could not set WakeOnLan of %s to %s: %m",
old_name, wol_to_string(config->wol));
+ r = ethtool_set_features(&ctx->ethtool_fd, old_name, config->features);
+ if (r < 0)
+ log_warning_errno(r, "Could not set offload features of %s: %m", old_name);
+
ifindex = udev_device_get_ifindex(device);
if (ifindex <= 0) {
log_warning("Could not find ifindex");
diff --git a/src/udev/net/link-config.h b/src/udev/net/link-config.h
index 9df5529d05..91cc0357c4 100644
--- a/src/udev/net/link-config.h
+++ b/src/udev/net/link-config.h
@@ -70,6 +70,7 @@ struct link_config {
size_t speed;
Duplex duplex;
WakeOnLan wol;
+ NetDevFeature features[_NET_DEV_FEAT_MAX];
LIST_FIELDS(link_config, links);
};
generated by cgit v1.2.3-54-g00ecf (git 2.45.2) at 2024-11-21 22:55:41 +0000