diff options
| -rw-r--r-- | drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c index ce4472915c98..a3b43159be38 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c @@ -120,6 +120,31 @@ static void npc_enable_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, } } +static void npc_clear_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, + int blkaddr, int index) +{ + int bank = npc_get_bank(mcam, index); + int actbank = bank; + + index &= (mcam->banksize - 1); + for (; bank < (actbank + mcam->banks_per_entry); bank++) { + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_INTF(index, bank, 1), 0); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_INTF(index, bank, 0), 0); + + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W0(index, bank, 1), 0); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W0(index, bank, 0), 0); + + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W1(index, bank, 1), 0); + rvu_write64(rvu, blkaddr, + NPC_AF_MCAMEX_BANKX_CAMX_W1(index, bank, 0), 0); + } +} + static void npc_get_keyword(struct mcam_entry *entry, int idx, u64 *cam0, u64 *cam1) { @@ -211,6 +236,12 @@ static void npc_config_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, actindex = index; index &= (mcam->banksize - 1); + /* Disable before mcam entry update */ + npc_enable_mcam_entry(rvu, mcam, blkaddr, actindex, false); + + /* Clear mcam entry to avoid writes being suppressed by NPC */ + npc_clear_mcam_entry(rvu, mcam, blkaddr, actindex); + /* CAM1 takes the comparison value and * CAM0 specifies match for a bit in key being '0' or '1' or 'dontcare'. * CAM1<n> = 0 & CAM0<n> = 1 => match if key<n> = 0 @@ -251,8 +282,6 @@ static void npc_config_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, /* Enable the entry */ if (enable) npc_enable_mcam_entry(rvu, mcam, blkaddr, actindex, true); - else - npc_enable_mcam_entry(rvu, mcam, blkaddr, actindex, false); } static void npc_copy_mcam_entry(struct rvu *rvu, struct npc_mcam *mcam, |