Commit cf6b82fd authored by Jacob Keller's avatar Jacob Keller Committed by Tony Nguyen
Browse files

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: default avatarJacob Keller <jacob.e.keller@intel.com>
Tested-by: Gurucharan <gurucharanx.g@intel.com> (A Contingent worker at Intel)
Signed-off-by: default avatarTony Nguyen <anthony.l.nguyen@intel.com>
parent b3b17374

drivers/net/ethernet/intel/ice/ice_ethtool.c

+1 −0
Original line number Diff line number Diff line
@@ -2885,6 +2885,7 @@ ice_set_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring, 
		/* 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

drivers/net/ethernet/intel/ice/ice_lib.c

+1 −0
Original line number Diff line number Diff line
@@ -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);

	}