cxgb4: Fix for write-combining stats configuration
The write-combining configuration register SGE_STAT_CFG_A needs to be configured after FW initializes the adapter, else FW will reset the configuration Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -4719,8 +4719,6 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
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err = -ENOMEM;
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goto out_free_adapter;
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}
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t4_write_reg(adapter, SGE_STAT_CFG_A,
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STATSOURCE_T5_V(7) | STATMODE_V(0));
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}
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setup_memwin(adapter);
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@ -4732,6 +4730,11 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
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if (err)
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goto out_unmap_bar;
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/* configure SGE_STAT_CFG_A to read WC stats */
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if (!is_t4(adapter->params.chip))
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t4_write_reg(adapter, SGE_STAT_CFG_A,
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STATSOURCE_T5_V(7) | STATMODE_V(0));
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for_each_port(adapter, i) {
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struct net_device *netdev;
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