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Commit eca0f6ee authored by Hariprasad Shenai's avatar Hariprasad Shenai Committed by David S. Miller
Browse files

cxgb4: program pci completion timeout 



Set pci completion timeout to 0xd.

Signed-off-by: default avatarHariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 098ef6c2

drivers/net/ethernet/chelsio/cxgb4/t4_hw.c

+19 −0
Original line number Diff line number Diff line
@@ -5847,6 +5847,22 @@ static int get_flash_params(struct adapter *adap) 
	return 0;

}



static void set_pcie_completion_timeout(struct adapter *adapter, u8 range)

{

	u16 val;

	u32 pcie_cap;



	pcie_cap = pci_find_capability(adapter->pdev, PCI_CAP_ID_EXP);

	if (pcie_cap) {

		pci_read_config_word(adapter->pdev,

				     pcie_cap + PCI_EXP_DEVCTL2, &val);

		val &= ~PCI_EXP_DEVCTL2_COMP_TIMEOUT;

		val |= range;

		pci_write_config_word(adapter->pdev,

				      pcie_cap + PCI_EXP_DEVCTL2, val);

	}

}



/**

 *	t4_prep_adapter - prepare SW and HW for operation

 *	@adapter: the adapter
@@ -5919,6 +5935,9 @@ int t4_prep_adapter(struct adapter *adapter) 
	adapter->params.nports = 1;

	adapter->params.portvec = 1;

	adapter->params.vpd.cclk = 50000;



	/* Set pci completion timeout value to 4 seconds. */

	set_pcie_completion_timeout(adapter, 0xd);

	return 0;

}