From: Vamsi Attunuru <vattunuru@marvell.com>
Date: Wed, 30 Oct 2019 05:54:10 +0000 (+0530)
Subject: net/octeontx2: skip flow control on LBK ports
X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=8f3afc1359bd2654704ad19fd21891d3d5296ee9;p=dpdk.git

net/octeontx2: skip flow control on LBK ports

LBK interface does not support any flow control related
HW configurations.

Skip flow control set requests on LBK bound ethports.

Signed-off-by: Harman Kalra <hkalra@marvell.com>
Signed-off-by: Vamsi Attunuru <vattunuru@marvell.com>
Acked-by: Jerin Jacob <jerinj@marvell.com>
---

diff --git a/drivers/net/octeontx2/otx2_flow_ctrl.c b/drivers/net/octeontx2/otx2_flow_ctrl.c
index 1d00e46876..1b84998c62 100644
--- a/drivers/net/octeontx2/otx2_flow_ctrl.c
+++ b/drivers/net/octeontx2/otx2_flow_ctrl.c
@@ -50,6 +50,11 @@ otx2_nix_flow_ctrl_get(struct rte_eth_dev *eth_dev,
 	struct otx2_mbox *mbox = dev->mbox;
 	int rc;
 
+	if (otx2_dev_is_lbk(dev)) {
+		fc_conf->mode = RTE_FC_NONE;
+		return 0;
+	}
+
 	req = otx2_mbox_alloc_msg_cgx_cfg_pause_frm(mbox);
 	req->set = 0;
 
@@ -137,6 +142,11 @@ otx2_nix_flow_ctrl_set(struct rte_eth_dev *eth_dev,
 	uint8_t tx_pause, rx_pause;
 	int rc = 0;
 
+	if (otx2_dev_is_lbk(dev)) {
+		otx2_info("No flow control support for LBK bound ethports");
+		return -ENOTSUP;
+	}
+
 	if (fc_conf->high_water || fc_conf->low_water || fc_conf->pause_time ||
 	    fc_conf->mac_ctrl_frame_fwd || fc_conf->autoneg) {
 		otx2_info("Flowctrl parameter is not supported");
@@ -189,6 +199,9 @@ otx2_nix_update_flow_ctrl_mode(struct rte_eth_dev *eth_dev)
 	struct otx2_eth_dev *dev = otx2_eth_pmd_priv(eth_dev);
 	struct rte_eth_fc_conf fc_conf;
 
+	if (otx2_dev_is_lbk(dev))
+		return 0;
+
 	memset(&fc_conf, 0, sizeof(struct rte_eth_fc_conf));
 	/* Both Rx & Tx flow ctrl get enabled(RTE_FC_FULL) in HW
 	 * by AF driver, update those info in PMD structure.