octeontx2-pf: Clear RSS enable flag on interace down

RSS configuration can not be get/set when interface is in down state
as they required mbox communication. RSS enable flag status
is used for set/get configuration. Current code do not clear the
RSS enable flag on interface down which lead to mbox error while
trying to set/get RSS configuration.

Fixes: 85069e95e531 ("octeontx2-pf: Receive side scaling support")
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: Hariprasad Kelam <hkelam@marvell.com>
Signed-off-by: Sunil Kovvuri Goutham <sgoutham@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
index 53ab181..2fd3d23 100644 (file)
--- a/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
+++ b/drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c
@@ -1672,6 +1672,7 @@ int otx2_stop(struct net_device *netdev)
        struct otx2_nic *pf = netdev_priv(netdev);
        struct otx2_cq_poll *cq_poll = NULL;
        struct otx2_qset *qset = &pf->qset;
+       struct otx2_rss_info *rss;
        int qidx, vec, wrk;
 
        netif_carrier_off(netdev);
@@ -1684,6 +1685,10 @@ int otx2_stop(struct net_device *netdev)
        /* First stop packet Rx/Tx */
        otx2_rxtx_enable(pf, false);
 
+       /* Clear RSS enable flag */
+       rss = &pf->hw.rss_info;
+       rss->enable = false;
+
        /* Cleanup Queue IRQ */
        vec = pci_irq_vector(pf->pdev,
                             pf->hw.nix_msixoff + NIX_LF_QINT_VEC_START);