octeontx2-pf: Dont allocate BPIDs for LBK interfaces

[ Upstream commit 8fcd7c7b3a38ab5e452f542fda8f7940e77e479a ]

Current driver enables backpressure for LBK interfaces.
But these interfaces do not support this feature.
Hence, this patch fixes the issue by skipping the
backpressure configuration for these interfaces.

Fixes: 75f36270990c ("octeontx2-pf: Support to enable/disable pause frames via ethtool").
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Link: https://lore.kernel.org/r/20230716093741.28063-1-gakula@marvell.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
index a987ae9d6a2853302365bf5053351fbb7a453195..8fc4ecc4f71408296d98dce5184bf55eaaad3317 100644 (file)
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
@@ -1430,8 +1430,9 @@ static int otx2_init_hw_resources(struct otx2_nic *pf)
        if (err)
                goto err_free_npa_lf;
 
-       /* Enable backpressure */
-       otx2_nix_config_bp(pf, true);
+       /* Enable backpressure for CGX mapped PF/VFs */
+       if (!is_otx2_lbkvf(pf->pdev))
+               otx2_nix_config_bp(pf, true);
 
        /* Init Auras and pools used by NIX RQ, for free buffer ptrs */
        err = otx2_rq_aura_pool_init(pf);