ice: initialize cached_phctime when creating Rx rings

When we create new Rx rings, the cached_phctime field is zero initialized.
This could result in incorrect timestamp reporting due to the cached value
not yet being updated. Although a background task will periodically update
the cached value, ensure it matches the existing cached value in the PF
structure at ring initialization.

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool.c b/drivers/net/ethernet/intel/ice/ice_ethtool.c
index bbf6a300078e5fb464af6b3b8aaf90b0d9ed4d27..3a18762cc38f500db746950d7e0b023c87c93814 100644 (file)
--- a/drivers/net/ethernet/intel/ice/ice_ethtool.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool.c
@@ -2885,6 +2885,7 @@ process_rx:
                /* clone ring and setup updated count */
                rx_rings[i] = *vsi->rx_rings[i];
                rx_rings[i].count = new_rx_cnt;
+               rx_rings[i].cached_phctime = pf->ptp.cached_phc_time;
                rx_rings[i].desc = NULL;
                rx_rings[i].rx_buf = NULL;
                /* this is to allow wr32 to have something to write to

diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c
index a830f7f9aed050fb29939c40f26515ec58266940..679529040eddd26c1d86b25429e7df3a3b01a1b0 100644 (file)
--- a/drivers/net/ethernet/intel/ice/ice_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_lib.c
@@ -1522,6 +1522,7 @@ static int ice_vsi_alloc_rings(struct ice_vsi *vsi)
                ring->netdev = vsi->netdev;
                ring->dev = dev;
                ring->count = vsi->num_rx_desc;
+               ring->cached_phctime = pf->ptp.cached_phc_time;
                WRITE_ONCE(vsi->rx_rings[i], ring);
        }