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Commit a81ed5f3 authored by Kevin Barnett's avatar Kevin Barnett Committed by Martin K. Petersen
Browse files

scsi: smartpqi: set pci completion timeout 



add support for setting PCIe completion timeout.

Reviewed-by: default avatarScott Benesh <scott.benesh@microsemi.com>
Reviewed-by: default avatarScott Teel <scott.teel@microsemi.com>
Signed-off-by: default avatarKevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: default avatarDon Brace <don.brace@microsemi.com>
Signed-off-by: default avatarMartin K. Petersen <martin.petersen@oracle.com>
parent 98bf061b

drivers/scsi/smartpqi/smartpqi_init.c

+18 −0
Original line number Diff line number Diff line
@@ -5437,6 +5437,13 @@ static int pqi_ctrl_init(struct pqi_ctrl_info *ctrl_info) 
	return 0;

}



static inline int pqi_set_pcie_completion_timeout(struct pci_dev *pci_dev,

	u16 timeout)

{

	return pcie_capability_clear_and_set_word(pci_dev, PCI_EXP_DEVCTL2,

		PCI_EXP_DEVCTL2_COMP_TIMEOUT, timeout);

}



static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info)

{

	int rc;
@@ -5480,6 +5487,17 @@ static int pqi_pci_init(struct pqi_ctrl_info *ctrl_info) 
	ctrl_info->registers = ctrl_info->iomem_base;

	ctrl_info->pqi_registers = &ctrl_info->registers->pqi_registers;



#define PCI_EXP_COMP_TIMEOUT_65_TO_210_MS		0x6



	/* Increase the PCIe completion timeout. */

	rc = pqi_set_pcie_completion_timeout(ctrl_info->pci_dev,

		PCI_EXP_COMP_TIMEOUT_65_TO_210_MS);

	if (rc) {

		dev_err(&ctrl_info->pci_dev->dev,

			"failed to set PCIe completion timeout\n");

		goto release_regions;

	}



	/* Enable bus mastering. */

	pci_set_master(ctrl_info->pci_dev);