octeontx2-pf: Dont allocate BPIDs for LBK interfaces

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: 75f3627 ("octeontx2-pf: Support to enable/disable pause frames via ethtool"). Signed-off-by: Geetha sowjanya <[email protected]> Signed-off-by: Sunil Goutham <[email protected]> Link: https://lore.kernel.org/r/[email protected] Signed-off-by: Paolo Abeni <[email protected]>
kawasaki · Jul 18, 2023 · 8fcd7c7 · 8fcd7c7
1 parent 2033ab9
commit 8fcd7c7
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
@@ -1454,8 +1454,9 @@ 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);