diff options
Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe-drv.c')
| -rw-r--r-- | drivers/net/ethernet/amd/xgbe/xgbe-drv.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c index 2e9b95a94f89..f0989aa01855 100644 --- a/drivers/net/ethernet/amd/xgbe/xgbe-drv.c +++ b/drivers/net/ethernet/amd/xgbe/xgbe-drv.c @@ -691,6 +691,21 @@ void xgbe_get_all_hw_features(struct xgbe_prv_data *pdata) hw_feat->pps_out_num = XGMAC_GET_BITS(mac_hfr2, MAC_HWF2R, PPSOUTNUM); hw_feat->aux_snap_num = XGMAC_GET_BITS(mac_hfr2, MAC_HWF2R, AUXSNAPNUM); + /* Sanity check and warn if hardware reports more than supported */ + if (hw_feat->pps_out_num > XGBE_MAX_PPS_OUT) { + dev_warn(pdata->dev, + "Hardware reports %u PPS outputs, limiting to %u\n", + hw_feat->pps_out_num, XGBE_MAX_PPS_OUT); + hw_feat->pps_out_num = XGBE_MAX_PPS_OUT; + } + + if (hw_feat->aux_snap_num > XGBE_MAX_AUX_SNAP) { + dev_warn(pdata->dev, + "Hardware reports %u aux snapshot inputs, limiting to %u\n", + hw_feat->aux_snap_num, XGBE_MAX_AUX_SNAP); + hw_feat->aux_snap_num = XGBE_MAX_AUX_SNAP; + } + /* Translate the Hash Table size into actual number */ switch (hw_feat->hash_table_size) { case 0: |