[PATCH v2 03/32] common/cnxk: fix CPT backpressure disable on LBK

[Nithin Dabilpuram]

From: Rahul Bhansali <rbhans...@marvell.com>

For LBK interfaces, roc_nix_inl_inb_is_enabled() is false,
hence backpressure on CPT is disabled and causing CQ full
interrupt.
NIXX_AF_RX_CHAN[0x800]_CFG is global config for all PF, VF
of RPM/LBK, hence backpressure disable on CPT is not required.

Fixes: 0663a84524e ("common/cnxk: enable backpressure on CPT with inline 
inbound")
cc: sta...@dpdk.org

Signed-off-by: Rahul Bhansali <rbhans...@marvell.com>
---
 drivers/common/cnxk/roc_nix_fc.c | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

diff --git a/drivers/common/cnxk/roc_nix_fc.c b/drivers/common/cnxk/roc_nix_fc.c
index 8b7659fb9a..19334b1eb0 100644
--- a/drivers/common/cnxk/roc_nix_fc.c
+++ b/drivers/common/cnxk/roc_nix_fc.c
@@ -87,25 +87,11 @@ nix_fc_rxchan_bpid_set(struct roc_nix *roc_nix, bool enable)
                if (rc)
                        goto exit;
                nix->cpt_lbpid = rsp->chan_bpid[0] & 0x1FF;
-       } else {
-               req = mbox_alloc_msg_nix_cpt_bp_disable(mbox);
-               if (req == NULL)
-                       goto exit;
-               req->chan_base = 0;
-               if (roc_nix_is_lbk(roc_nix) || roc_nix_is_sdp(roc_nix))
-                       req->chan_cnt = NIX_LBK_MAX_CHAN;
-               else
-                       req->chan_cnt = NIX_CGX_MAX_CHAN;
-               req->bpid_per_chan = 0;
-
-               rc = mbox_process_msg(mbox, (void *)&rsp);
-               if (rc)
-                       goto exit;
-               nix->cpt_lbpid = 0;
        }
 
        /* CPT to NIX BP on all channels */
-       if (!roc_feature_nix_has_rxchan_multi_bpid() || !nix->cpt_nixbpid)
+       if (!roc_feature_nix_has_rxchan_multi_bpid() || !nix->cpt_nixbpid ||
+           !roc_nix_inl_inb_is_enabled(roc_nix))
                goto exit;
 
        mbox_put(mbox);
-- 
2.25.1