Dropping this patch, we will temporarily revert MACSEC netdev feature instead.
On 20.09.2021 14:02, Konstantin Khorenko wrote:
The commit is pushed to "branch-rh9-5.14.vz9.1.x-ovz" and will appear at
https://src.openvz.org/scm/ovz/vzkernel.git
after ark-5.14
------>
commit 40b3e15cf0df54e5437def6ed85e515184dc408e
Author: Konstantin Khorenko <khore...@virtuozzo.com>
Date: Mon Sep 20 13:22:17 2021 +0300
Revert "ms/net: introduce a netdev feature for UDP GRO forwarding"
This reverts commit 6f1c0ea133a6e4a193a7b285efe209664caeea43.
We need a place to store netdev feature bit for venet, but
in ms kernel all 64 features are occupied already.
In fact 63 bits are used, but we already use 1 previously unused bit
for NETIF_F_VIRTUAL_BIT.
We are going to drop venet, but still need to do some performance
measurements before doing this, so let's not invent something
complicated for now, but revert 1 ms patch which frees 1 netdev feature
bit.
We will use it for venet for now, do our measurements, then drop venet
and re-apply ms patch for UDP GRO forwarding netdev feature.
https://jira.sw.ru/browse/PSBM-133985
Signed-off-by: Konstantin Khorenko <khore...@virtuozzo.com>
---
include/linux/netdev_features.h | 7 ++++---
net/ethtool/common.c | 2 +-
2 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/include/linux/netdev_features.h b/include/linux/netdev_features.h
index e7793410413b..bcb60fe57395 100644
--- a/include/linux/netdev_features.h
+++ b/include/linux/netdev_features.h
@@ -84,7 +84,8 @@ enum {
NETIF_F_GRO_FRAGLIST_BIT, /* Fraglist GRO */
NETIF_F_HW_MACSEC_BIT, /* Offload MACsec operations */
- NETIF_F_GRO_UDP_FWD_BIT, /* Allow UDP GRO for forwarding */
+ /* here goes NETIF_F_GRO_UDP_FWD_BIT in ms, temporarily reverted */
+ /* Allow UDP GRO for forwarding */
NETIF_F_HW_HSR_TAG_INS_BIT, /* Offload HSR tag insertion */
NETIF_F_HW_HSR_TAG_RM_BIT, /* Offload HSR tag removal */
@@ -163,7 +164,7 @@ enum {
#define NETIF_F_GRO_FRAGLIST __NETIF_F(GRO_FRAGLIST)
#define NETIF_F_GSO_FRAGLIST __NETIF_F(GSO_FRAGLIST)
#define NETIF_F_HW_MACSEC __NETIF_F(HW_MACSEC)
-#define NETIF_F_GRO_UDP_FWD __NETIF_F(GRO_UDP_FWD)
+
#define NETIF_F_HW_HSR_TAG_INS __NETIF_F(HW_HSR_TAG_INS)
#define NETIF_F_HW_HSR_TAG_RM __NETIF_F(HW_HSR_TAG_RM)
#define NETIF_F_HW_HSR_FWD __NETIF_F(HW_HSR_FWD)
@@ -247,7 +248,7 @@ static inline int find_next_netdev_feature(u64 feature,
unsigned long start)
#define NETIF_F_SOFT_FEATURES (NETIF_F_GSO | NETIF_F_GRO)
/* Changeable features with no special hardware requirements that defaults to off. */
-#define NETIF_F_SOFT_FEATURES_OFF (NETIF_F_GRO_FRAGLIST |
NETIF_F_GRO_UDP_FWD)
+#define NETIF_F_SOFT_FEATURES_OFF NETIF_F_GRO_FRAGLIST
#define NETIF_F_VLAN_FEATURES (NETIF_F_HW_VLAN_CTAG_FILTER | \
NETIF_F_HW_VLAN_CTAG_RX | \
diff --git a/net/ethtool/common.c b/net/ethtool/common.c
index c63e0739dc6a..04dcc58c4030 100644
--- a/net/ethtool/common.c
+++ b/net/ethtool/common.c
@@ -69,7 +69,7 @@ const char
netdev_features_strings[NETDEV_FEATURE_COUNT][ETH_GSTRING_LEN] = {
[NETIF_F_HW_TLS_RX_BIT] = "tls-hw-rx-offload",
[NETIF_F_GRO_FRAGLIST_BIT] = "rx-gro-list",
[NETIF_F_HW_MACSEC_BIT] = "macsec-hw-offload",
- [NETIF_F_GRO_UDP_FWD_BIT] = "rx-udp-gro-forwarding",
+
[NETIF_F_HW_HSR_TAG_INS_BIT] = "hsr-tag-ins-offload",
[NETIF_F_HW_HSR_TAG_RM_BIT] = "hsr-tag-rm-offload",
[NETIF_F_HW_HSR_FWD_BIT] = "hsr-fwd-offload",
.
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