[PATCH 03/15] net/cnxk: release LBK bpid for after freeing resources

[Nithin Dabilpuram]

From: Rakesh Kudurumalla <rkuduruma...@marvell.com>

bpids are not disabled while freeing resources for NIX
device as a result a new bpid is assigned which leads
to exhaustion of bpid's after soft exit of application.
This patch fixes the same

Signed-off-by: Rakesh Kudurumalla <rkuduruma...@marvell.com>
---
 drivers/net/cnxk/cnxk_ethdev.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/drivers/net/cnxk/cnxk_ethdev.c b/drivers/net/cnxk/cnxk_ethdev.c
index 22072d29b0..e99335b117 100644
--- a/drivers/net/cnxk/cnxk_ethdev.c
+++ b/drivers/net/cnxk/cnxk_ethdev.c
@@ -900,6 +900,27 @@ cnxk_rss_ethdev_to_nix(struct cnxk_eth_dev *dev, uint64_t 
ethdev_rss,
        return flowkey_cfg;
 }
 
+static int
+nix_rxchan_cfg_disable(struct cnxk_eth_dev *dev)
+{
+       struct roc_nix *nix = &dev->nix;
+       struct roc_nix_fc_cfg fc_cfg;
+       int rc;
+
+       if (!roc_nix_is_lbk(nix))
+               return 0;
+
+       memset(&fc_cfg, 0, sizeof(struct roc_nix_fc_cfg));
+       fc_cfg.type = ROC_NIX_FC_RXCHAN_CFG;
+       fc_cfg.rxchan_cfg.enable = false;
+       rc = roc_nix_fc_config_set(nix, &fc_cfg);
+       if (rc) {
+               plt_err("Failed to setup flow control, rc=%d(%s)", rc, 
roc_error_msg_get(rc));
+               return rc;
+       }
+       return 0;
+}
+
 static void
 nix_free_queue_mem(struct cnxk_eth_dev *dev)
 {
@@ -1218,6 +1239,7 @@ cnxk_nix_configure(struct rte_eth_dev *eth_dev)
                        goto fail_configure;
 
                roc_nix_tm_fini(nix);
+               nix_rxchan_cfg_disable(dev);
                roc_nix_lf_free(nix);
        }
 
@@ -1456,6 +1478,7 @@ cnxk_nix_configure(struct rte_eth_dev *eth_dev)
        roc_nix_tm_fini(nix);
 free_nix_lf:
        nix_free_queue_mem(dev);
+       rc |= nix_rxchan_cfg_disable(dev);
        rc |= roc_nix_lf_free(nix);
 fail_configure:
        dev->configured = 0;
@@ -2026,6 +2049,11 @@ cnxk_eth_dev_uninit(struct rte_eth_dev *eth_dev, bool 
reset)
        /* Free ROC RQ's, SQ's and CQ's memory */
        nix_free_queue_mem(dev);
 
+       /* free nix bpid */
+       rc = nix_rxchan_cfg_disable(dev);
+       if (rc)
+               plt_err("Failed to free nix bpid, rc=%d", rc);
+
        /* Free nix lf resources */
        rc = roc_nix_lf_free(nix);
        if (rc)
-- 
2.25.1