This is a note to let you know that I've just added the patch titled
octeontx2-pf: fix FLOW_DIS_IS_FRAGMENT implementation
to the 6.6-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
octeontx2-pf-fix-flow_dis_is_fragment-implementation.patch
and it can be found in the queue-6.6 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 502f075380ca7abfd0ffa7310ebf7d4f629065d0
Author: Asbjørn Sloth Tønnesen <ast@xxxxxxxxxxx>
Date: Fri Apr 12 12:02:56 2024 +0000
octeontx2-pf: fix FLOW_DIS_IS_FRAGMENT implementation
[ Upstream commit 75ce9506ee3dc66648a7d74ab3b0acfa364d6d43 ]
Upon reviewing the flower control flags handling in
this driver, I notice that the key wasn't being used,
only the mask.
Ie. `tc flower ... ip_flags nofrag` was hardware
offloaded as `... ip_flags frag`.
Only compile tested, no access to HW.
Fixes: c672e3727989 ("octeontx2-pf: Add support to filter packet based on IP fragment")
Signed-off-by: Asbjørn Sloth Tønnesen <ast@xxxxxxxxxxx>
Reviewed-by: Jacob Keller <jacob.e.keller@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
index 423ce54eaea69..46bdbee9d38ad 100644
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_tc.c
@@ -588,6 +588,7 @@ static int otx2_tc_prepare_flow(struct otx2_nic *nic, struct otx2_tc_flow *node,
if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CONTROL)) {
struct flow_match_control match;
+ u32 val;
flow_rule_match_control(rule, &match);
if (match.mask->flags & FLOW_DIS_FIRST_FRAG) {
@@ -596,12 +597,14 @@ static int otx2_tc_prepare_flow(struct otx2_nic *nic, struct otx2_tc_flow *node,
}
if (match.mask->flags & FLOW_DIS_IS_FRAGMENT) {
+ val = match.key->flags & FLOW_DIS_IS_FRAGMENT;
if (ntohs(flow_spec->etype) == ETH_P_IP) {
- flow_spec->ip_flag = IPV4_FLAG_MORE;
+ flow_spec->ip_flag = val ? IPV4_FLAG_MORE : 0;
flow_mask->ip_flag = IPV4_FLAG_MORE;
req->features |= BIT_ULL(NPC_IPFRAG_IPV4);
} else if (ntohs(flow_spec->etype) == ETH_P_IPV6) {
- flow_spec->next_header = IPPROTO_FRAGMENT;
+ flow_spec->next_header = val ?
+ IPPROTO_FRAGMENT : 0;
flow_mask->next_header = 0xff;
req->features |= BIT_ULL(NPC_IPFRAG_IPV6);
} else {
