Commit 32b931c8 authored by Suman Ghosh's avatar Suman Ghosh Committed by David S. Miller
Browse files

octeontx2-pf: Fix pfc_alloc_status array overflow 



This patch addresses pfc_alloc_status array overflow occurring for
send queue index value greater than PFC priority. Queue index can be
greater than supported PFC priority for multiple scenarios (e.g. QoS,
during non zero SMQ allocation for a PF/VF).
In those scenarios the API should return default tx scheduler '0'.
This is causing mbox errors as otx2_get_smq_idx returing invalid smq value.

Fixes: 99c969a8 ("octeontx2-pf: Add egress PFC support")
Signed-off-by: default avatarSuman Ghosh <sumang@marvell.com>
Reviewed-by: default avatarLeon Romanovsky <leonro@nvidia.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent cc3d2b5f

drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.h

+1 −1
Original line number Diff line number Diff line
@@ -884,7 +884,7 @@ static inline void otx2_dma_unmap_page(struct otx2_nic *pfvf, 
static inline u16 otx2_get_smq_idx(struct otx2_nic *pfvf, u16 qidx)

{

#ifdef CONFIG_DCB

	if (pfvf->pfc_alloc_status[qidx])

	if (qidx < NIX_PF_PFC_PRIO_MAX && pfvf->pfc_alloc_status[qidx])

		return pfvf->pfc_schq_list[NIX_TXSCH_LVL_SMQ][qidx];

#endif