diff options
| author | Kevin Barnett <kevin.barnett@microsemi.com> | 2017-05-03 18:52:34 -0500 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2017-06-12 20:48:01 -0400 |
| commit | a81ed5f338a843d8bfd199928142b196d71ae62c (patch) | |
| tree | 35ebcc20bbd11c549d3f74ce15da056b57d55776 /drivers/scsi/smartpqi | |
| parent | 98bf061b0b423a2b6f3c31b7e4b48d947352331c (diff) | |
scsi: smartpqi: set pci completion timeout
add support for setting PCIe completion timeout.
Reviewed-by: Scott Benesh <scott.benesh@microsemi.com>
Reviewed-by: Scott Teel <scott.teel@microsemi.com>
Signed-off-by: Kevin Barnett <kevin.barnett@microsemi.com>
Signed-off-by: Don Brace <don.brace@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/smartpqi')
| -rw-r--r-- | drivers/scsi/smartpqi/smartpqi_init.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index b5a35055229b..735cef55d3a2 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -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); |