Flow install mbox can alloc x2/x4 npc mcam entry based on the flow entry size. If global kex profile is x2, x4 entries won't work. Return error upon request for x4 entry in x2 profile. Fixes: 9000cada7aa9 ("octeontx2-af: npc: cn20k: Allocate MCAM entry for flow installation") Signed-off-by: Ratheesh Kannoth --- .../net/ethernet/marvell/octeontx2/af/cn20k/npc.c | 10 ++++++++-- .../net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c | 12 +++++++++++- 2 files changed, 19 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/npc.c b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/npc.c index 108998b6d832..705fe7a877e6 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cn20k/npc.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/cn20k/npc.c @@ -4330,11 +4330,17 @@ int npc_cn20k_dft_rules_alloc(struct rvu *rvu, u16 pcifunc) * as NPC_DFT_RULE_PRIO - 1 (higher hw priority) */ req.contig = false; - req.kw_type = NPC_MCAM_KEY_X2; req.count = cnt; req.hdr.pcifunc = pcifunc; req.ref_prio = NPC_MCAM_LOWER_PRIO; - req.ref_entry = eidx + 1; + if (npc_priv.kw == NPC_MCAM_KEY_X4) { + req.kw_type = NPC_MCAM_KEY_X4; + req.ref_entry = (eidx + 1) & (npc_priv.bank_depth - 1); + } else { + req.kw_type = NPC_MCAM_KEY_X2; + req.ref_entry = eidx + 1; + } + ret = rvu_mbox_handler_npc_mcam_alloc_entry(rvu, &req, &rsp); if (ret) { dev_err(rvu->dev, 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 bd1488fe1611..d8945823e202 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_npc_fs.c @@ -1663,9 +1663,11 @@ rvu_npc_alloc_entry_for_flow_install(struct rvu *rvu, { struct npc_mcam_alloc_entry_req entry_req; struct npc_mcam_alloc_entry_rsp entry_rsp; + struct npc_get_pfl_info_rsp rsp = { 0 }; struct npc_get_num_kws_req kws_req; struct npc_get_num_kws_rsp kws_rsp; int off, kw_bits, rc; + struct msg_req req; u8 *src, *dst; if (!is_cn20k(rvu->pdev)) { @@ -1689,8 +1691,16 @@ rvu_npc_alloc_entry_for_flow_install(struct rvu *rvu, kw_bits = kws_rsp.kws * 64; *kw_type = NPC_MCAM_KEY_X2; - if (kw_bits > 256) + if (kw_bits > 256) { + rvu_mbox_handler_npc_get_pfl_info(rvu, &req, &rsp); + if (rsp.kw_type == NPC_MCAM_KEY_X2) { + dev_err(rvu->dev, + "Only X2 entries are supported in X2 profile\n"); + return -EOPNOTSUPP; + } + *kw_type = NPC_MCAM_KEY_X4; + } memset(&entry_req, 0, sizeof(entry_req)); memset(&entry_rsp, 0, sizeof(entry_rsp)); -- 2.43.0