diff options
| author | Jakub Kicinski <kuba@kernel.org> | 2025-07-17 16:43:41 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-07-21 18:20:43 -0700 |
| commit | a166ab7816c534973745b0fe7bce3c8cefc5426f (patch) | |
| tree | 47c5195f33afc6849840550cf6b434033c1ca1d0 /net/ethtool/netlink.c | |
| parent | 55ef461ce18fbe678f0b4834fc1eaa38c24f83fe (diff) | |
ethtool: rss: support creating contexts via Netlink
Support creating contexts via Netlink. Setting flow hashing
fields on the new context is not supported at this stage,
it can be added later.
An empty indirection table is not supported. This is a carry
over from the IOCTL interface where empty indirection table
meant delete. We can repurpose empty indirection table in
Netlink but for now to avoid confusion reject it using the
policy.
Support letting user choose the ID for the new context. This was
not possible in IOCTL since the context ID field for the create
action had to be set to the ETH_RXFH_CONTEXT_ALLOC magic value.
Link: https://patch.msgid.link/20250717234343.2328602-7-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ethtool/netlink.c')
| -rw-r--r-- | net/ethtool/netlink.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c index 0ae0d7a9667c..e9696113a96b 100644 --- a/net/ethtool/netlink.c +++ b/net/ethtool/netlink.c @@ -81,6 +81,12 @@ static void ethnl_sock_priv_destroy(void *priv) } } +u32 ethnl_bcast_seq_next(void) +{ + ASSERT_RTNL(); + return ++ethnl_bcast_seq; +} + int ethnl_ops_begin(struct net_device *dev) { int ret; @@ -954,6 +960,7 @@ ethnl_default_notify_ops[ETHTOOL_MSG_KERNEL_MAX + 1] = { [ETHTOOL_MSG_PLCA_NTF] = ðnl_plca_cfg_request_ops, [ETHTOOL_MSG_MM_NTF] = ðnl_mm_request_ops, [ETHTOOL_MSG_RSS_NTF] = ðnl_rss_request_ops, + [ETHTOOL_MSG_RSS_CREATE_NTF] = ðnl_rss_request_ops, }; /* default notification handler */ @@ -1061,6 +1068,7 @@ static const ethnl_notify_handler_t ethnl_notify_handlers[] = { [ETHTOOL_MSG_PLCA_NTF] = ethnl_default_notify, [ETHTOOL_MSG_MM_NTF] = ethnl_default_notify, [ETHTOOL_MSG_RSS_NTF] = ethnl_default_notify, + [ETHTOOL_MSG_RSS_CREATE_NTF] = ethnl_default_notify, }; void ethnl_notify(struct net_device *dev, unsigned int cmd, @@ -1512,6 +1520,13 @@ static const struct genl_ops ethtool_genl_ops[] = { .policy = ethnl_rss_set_policy, .maxattr = ARRAY_SIZE(ethnl_rss_set_policy) - 1, }, + { + .cmd = ETHTOOL_MSG_RSS_CREATE_ACT, + .flags = GENL_UNS_ADMIN_PERM, + .doit = ethnl_rss_create_doit, + .policy = ethnl_rss_create_policy, + .maxattr = ARRAY_SIZE(ethnl_rss_create_policy) - 1, + }, }; static const struct genl_multicast_group ethtool_nl_mcgrps[] = { |