net/octeontx2: allow VFs to enable back pressure

Allow VFs to enable backpressure for performance reasons.
The backpressure control is with kernel AF driver that will enable
backpressure even if one PF/VF requests it and disable it only
after all the PFs/VFs request for disable.

Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>

diff --git a/drivers/net/octeontx2/otx2_flow_ctrl.c b/drivers/net/octeontx2/otx2_flow_ctrl.c
index 419ad97..1d00e46 100644 (file)
--- a/drivers/net/octeontx2/otx2_flow_ctrl.c
+++ b/drivers/net/octeontx2/otx2_flow_ctrl.c
@@ -14,9 +14,6 @@ otx2_nix_rxchan_bpid_cfg(struct rte_eth_dev *eth_dev, bool enb)
        struct nix_bp_cfg_rsp *rsp;
        int rc;
 
-       if (otx2_dev_is_vf(dev))
-               return 0;
-
        if (enb) {
                req = otx2_mbox_alloc_msg_nix_bp_enable(mbox);
                req->chan_base = 0;
@@ -53,9 +50,6 @@ otx2_nix_flow_ctrl_get(struct rte_eth_dev *eth_dev,
        struct otx2_mbox *mbox = dev->mbox;
        int rc;
 
-       if (otx2_dev_is_vf(dev))
-               return -ENOTSUP;
-
        req = otx2_mbox_alloc_msg_cgx_cfg_pause_frm(mbox);
        req->set = 0;
 
@@ -143,9 +137,6 @@ otx2_nix_flow_ctrl_set(struct rte_eth_dev *eth_dev,
        uint8_t tx_pause, rx_pause;
        int rc = 0;
 
-       if (otx2_dev_is_vf(dev))
-               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");
@@ -198,9 +189,6 @@ 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_vf(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.