The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to stable@vger.kernel.org.
To reproduce the conflict and resubmit, you may use the following commands:
git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x cefa98e806fd4e2a5e2047457a11ae5f17b8f621 # <resolve conflicts, build, test, etc.> git commit -s git send-email --to 'stable@vger.kernel.org' --in-reply-to '2024021957-battering-gallows-35b2@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^..
Possible dependencies:
cefa98e806fd ("nfp: flower: add hardware offload check for post ct entry") 3e44d19934b9 ("nfp: flower: add goto_chain_index for ct entry")
thanks,
greg k-h
------------------ original commit in Linus's tree ------------------
From cefa98e806fd4e2a5e2047457a11ae5f17b8f621 Mon Sep 17 00:00:00 2001 From: Hui Zhou hui.zhou@corigine.com Date: Wed, 24 Jan 2024 17:19:08 +0200 Subject: [PATCH] nfp: flower: add hardware offload check for post ct entry
The nfp offload flow pay will not allocate a mask id when the out port is openvswitch internal port. This is because these flows are used to configure the pre_tun table and are never actually send to the firmware as an add-flow message. When a tc rule which action contains ct and the post ct entry's out port is openvswitch internal port, the merge offload flow pay with the wrong mask id of 0 will be send to the firmware. Actually, the nfp can not support hardware offload for this situation, so return EOPNOTSUPP.
Fixes: bd0fe7f96a3c ("nfp: flower-ct: add zone table entry when handling pre/post_ct flows") CC: stable@vger.kernel.org # 5.14+ Signed-off-by: Hui Zhou hui.zhou@corigine.com Signed-off-by: Louis Peens louis.peens@corigine.com Link: https://lore.kernel.org/r/20240124151909.31603-2-louis.peens@corigine.com Signed-off-by: Jakub Kicinski kuba@kernel.org
diff --git a/drivers/net/ethernet/netronome/nfp/flower/conntrack.c b/drivers/net/ethernet/netronome/nfp/flower/conntrack.c index 2967bab72505..726d8cdf0b9c 100644 --- a/drivers/net/ethernet/netronome/nfp/flower/conntrack.c +++ b/drivers/net/ethernet/netronome/nfp/flower/conntrack.c @@ -1864,10 +1864,30 @@ int nfp_fl_ct_handle_post_ct(struct nfp_flower_priv *priv, { struct flow_rule *rule = flow_cls_offload_flow_rule(flow); struct nfp_fl_ct_flow_entry *ct_entry; + struct flow_action_entry *ct_goto; struct nfp_fl_ct_zone_entry *zt; + struct flow_action_entry *act; bool wildcarded = false; struct flow_match_ct ct; - struct flow_action_entry *ct_goto; + int i; + + flow_action_for_each(i, act, &rule->action) { + switch (act->id) { + case FLOW_ACTION_REDIRECT: + case FLOW_ACTION_REDIRECT_INGRESS: + case FLOW_ACTION_MIRRED: + case FLOW_ACTION_MIRRED_INGRESS: + if (act->dev->rtnl_link_ops && + !strcmp(act->dev->rtnl_link_ops->kind, "openvswitch")) { + NL_SET_ERR_MSG_MOD(extack, + "unsupported offload: out port is openvswitch internal port"); + return -EOPNOTSUPP; + } + break; + default: + break; + } + }
flow_rule_match_ct(rule, &ct); if (!ct.mask->ct_zone) {