Due to target variable is being reassigned in npc_install_flow()
function, PF multicast rules are not getting installed.
This patch addresses the issue by fixing the "IF" condition
checks when rules are installed by AF.

Fixes: 6c40ca957fe5 ("octeontx2-pf: Adds TC offload support").
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
---

v1-v2:
 -Restructured the code.

 .../ethernet/marvell/octeontx2/af/rvu_npc_fs.c | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c
index da69e454662a..1b765045aa63 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c
@@ -1452,23 +1452,21 @@ int rvu_mbox_handler_npc_install_flow(struct rvu *rvu,
 	 * hence modify pcifunc accordingly.
 	 */
 
-	/* AF installing for a PF/VF */
-	if (!req->hdr.pcifunc)
+	if (!req->hdr.pcifunc) {
+		/* AF installing for a PF/VF */
 		target = req->vf;
-
-	/* PF installing for its VF */
-	if (!from_vf && req->vf && !from_rep_dev) {
+	} else if (!from_vf && req->vf && !from_rep_dev) {
+		/* PF installing for its VF */
 		target = (req->hdr.pcifunc & ~RVU_PFVF_FUNC_MASK) | req->vf;
 		pf_set_vfs_mac = req->default_rule &&
 				(req->features & BIT_ULL(NPC_DMAC));
-	}
-
-	/* Representor device installing for a representee */
-	if (from_rep_dev && req->vf)
+	} else if (from_rep_dev && req->vf) {
+		/* Representor device installing for a representee */
 		target = req->vf;
-	else
+	} else {
 		/* msg received from PF/VF */
 		target = req->hdr.pcifunc;
+	}
 
 	/* ignore chan_mask in case pf func is not AF, revisit later */
 	if (!is_pffunc_af(req->hdr.pcifunc))
-- 
2.25.1

On Thu, Dec 05, 2024 at 05:04:35PM +0530, Geetha sowjanya wrote:
> Due to target variable is being reassigned in npc_install_flow()
> function, PF multicast rules are not getting installed.
> This patch addresses the issue by fixing the "IF" condition
> checks when rules are installed by AF.
> 
> Fixes: 6c40ca957fe5 ("octeontx2-pf: Adds TC offload support").
> Signed-off-by: Geetha sowjanya <gakula@marvell.com>

Reviewed-by: Simon Horman <horms@kernel.org>