From 4c85e57575fb9e6405d02d55aef8025c60abb824 Mon Sep 17 00:00:00 2001 From: Hariprasad Kelam Date: Sun, 25 Jul 2021 13:29:37 +0530 Subject: [PATCH] octeontx2-pf: Dont enable backpressure on LBK links Avoid configure backpressure for LBK links as they don't support it and enable lmacs before configuration pause frames. Fixes: 75f36270990c ("octeontx2-pf: Support to enable/disable pause frames via ethtool") Signed-off-by: Geetha sowjanya Signed-off-by: Hariprasad Kelam Signed-off-by: David S. Miller --- drivers/net/ethernet/marvell/octeontx2/af/cgx.c | 2 +- .../ethernet/marvell/octeontx2/nic/otx2_common.c | 14 ++++++++------ 2 files changed, 9 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c index 9169849881bf..544c96c8fe1d 100644 --- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.c +++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.c @@ -1504,8 +1504,8 @@ static int cgx_lmac_init(struct cgx *cgx) /* Add reference */ cgx->lmac_idmap[lmac->lmac_id] = lmac; - cgx->mac_ops->mac_pause_frm_config(cgx, lmac->lmac_id, true); set_bit(lmac->lmac_id, &cgx->lmac_bmap); + cgx->mac_ops->mac_pause_frm_config(cgx, lmac->lmac_id, true); } return cgx_lmac_verify_fwi_version(cgx); diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c index 7cccd802c4ed..70fcc1fd962f 100644 --- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c +++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_common.c @@ -924,12 +924,14 @@ static int otx2_cq_init(struct otx2_nic *pfvf, u16 qidx) aq->cq.drop = RQ_DROP_LVL_CQ(pfvf->hw.rq_skid, cq->cqe_cnt); aq->cq.drop_ena = 1; - /* Enable receive CQ backpressure */ - aq->cq.bp_ena = 1; - aq->cq.bpid = pfvf->bpid[0]; + if (!is_otx2_lbkvf(pfvf->pdev)) { + /* Enable receive CQ backpressure */ + aq->cq.bp_ena = 1; + aq->cq.bpid = pfvf->bpid[0]; - /* Set backpressure level is same as cq pass level */ - aq->cq.bp = RQ_PASS_LVL_CQ(pfvf->hw.rq_skid, qset->rqe_cnt); + /* Set backpressure level is same as cq pass level */ + aq->cq.bp = RQ_PASS_LVL_CQ(pfvf->hw.rq_skid, qset->rqe_cnt); + } } /* Fill AQ info */ @@ -1186,7 +1188,7 @@ static int otx2_aura_init(struct otx2_nic *pfvf, int aura_id, aq->aura.fc_hyst_bits = 0; /* Store count on all updates */ /* Enable backpressure for RQ aura */ - if (aura_id < pfvf->hw.rqpool_cnt) { + if (aura_id < pfvf->hw.rqpool_cnt && !is_otx2_lbkvf(pfvf->pdev)) { aq->aura.bp_ena = 0; aq->aura.nix0_bpid = pfvf->bpid[0]; /* Set backpressure level for RQ's Aura */ -- 2.39.5