| Message ID | 1378193715-25328-2-git-send-email-wangyijing@huawei.com (mailing list archive) |
|---|---|
| State | New, archived |
| Delegated to: | Bjorn Helgaas |
| Headers | show |
On Tue, Sep 03, 2013 at 03:35:10PM +0800, Yijing Wang wrote: > Pcie_capability_xxx() interfaces were introudced to s/introudced/introduced/ > simplify code to access PCIe Cap config space. And > because PCI core saves the PCIe Cap offset in > set_pcie_port_type() when device is enumerated. > So we can use pci_is_pcie() instead. > > Signed-off-by: Yijing Wang <wangyijing@huawei.com> > Cc: Jiang Liu <jiang.liu@huawei.com> > Cc: "James E.J. Bottomley" <JBottomley@parallels.com> > Cc: Naresh Kumar Inna <naresh@chelsio.com> > Cc: "David S. Miller" <davem@davemloft.net> > Cc: Jesper Juhl <jj@chaosbits.net> > Cc: linux-scsi@vger.kernel.org > Cc: linux-kernel@vger.kernel.org > --- > drivers/scsi/csiostor/csio_hw.c | 9 +++------ > 1 files changed, 3 insertions(+), 6 deletions(-) > > diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c > index 0eb35b9..be9a6ef 100644 > --- a/drivers/scsi/csiostor/csio_hw.c > +++ b/drivers/scsi/csiostor/csio_hw.c > @@ -856,15 +856,12 @@ static void > csio_set_pcie_completion_timeout(struct csio_hw *hw, u8 range) > { > uint16_t val; > - int pcie_cap; > > - if (!csio_pci_capability(hw->pdev, PCI_CAP_ID_EXP, &pcie_cap)) { > - pci_read_config_word(hw->pdev, > - pcie_cap + PCI_EXP_DEVCTL2, &val); > + if (pci_is_pcie(hw->pdev)) { > + pcie_capability_read_word(hw->pdev, PCI_EXP_DEVCTL2, &val); > val &= 0xfff0; > val |= range ; > - pci_write_config_word(hw->pdev, > - pcie_cap + PCI_EXP_DEVCTL2, val); > + pcie_capability_write_word(hw->pdev, PCI_EXP_DEVCTL2, val); Please add a #define for the Completion Timeout Value field and use pcie_capability_clear_and_set_word() instead of writing it out the long way here. > } > } > > -- > 1.7.1 > > -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
On 2013/9/4 7:43, Bjorn Helgaas wrote: > On Tue, Sep 03, 2013 at 03:35:10PM +0800, Yijing Wang wrote: >> Pcie_capability_xxx() interfaces were introudced to > > s/introudced/introduced/ Will update it. > >> simplify code to access PCIe Cap config space. And >> because PCI core saves the PCIe Cap offset in >> set_pcie_port_type() when device is enumerated. >> So we can use pci_is_pcie() instead. >> >> Signed-off-by: Yijing Wang <wangyijing@huawei.com> >> Cc: Jiang Liu <jiang.liu@huawei.com> >> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> >> Cc: Naresh Kumar Inna <naresh@chelsio.com> >> Cc: "David S. Miller" <davem@davemloft.net> >> Cc: Jesper Juhl <jj@chaosbits.net> >> Cc: linux-scsi@vger.kernel.org >> Cc: linux-kernel@vger.kernel.org >> --- >> drivers/scsi/csiostor/csio_hw.c | 9 +++------ >> 1 files changed, 3 insertions(+), 6 deletions(-) >> >> diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c >> index 0eb35b9..be9a6ef 100644 >> --- a/drivers/scsi/csiostor/csio_hw.c >> +++ b/drivers/scsi/csiostor/csio_hw.c >> @@ -856,15 +856,12 @@ static void >> csio_set_pcie_completion_timeout(struct csio_hw *hw, u8 range) >> { >> uint16_t val; >> - int pcie_cap; >> >> - if (!csio_pci_capability(hw->pdev, PCI_CAP_ID_EXP, &pcie_cap)) { >> - pci_read_config_word(hw->pdev, >> - pcie_cap + PCI_EXP_DEVCTL2, &val); >> + if (pci_is_pcie(hw->pdev)) { >> + pcie_capability_read_word(hw->pdev, PCI_EXP_DEVCTL2, &val); >> val &= 0xfff0; >> val |= range ; >> - pci_write_config_word(hw->pdev, >> - pcie_cap + PCI_EXP_DEVCTL2, val); >> + pcie_capability_write_word(hw->pdev, PCI_EXP_DEVCTL2, val); > > Please add a #define for the Completion Timeout Value field and use > pcie_capability_clear_and_set_word() instead of writing it out the > long way here. Will update it, thanks! > >> } >> } >> >> -- >> 1.7.1 >> >> > > . >
diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c index 0eb35b9..be9a6ef 100644 --- a/drivers/scsi/csiostor/csio_hw.c +++ b/drivers/scsi/csiostor/csio_hw.c @@ -856,15 +856,12 @@ static void csio_set_pcie_completion_timeout(struct csio_hw *hw, u8 range) { uint16_t val; - int pcie_cap; - if (!csio_pci_capability(hw->pdev, PCI_CAP_ID_EXP, &pcie_cap)) { - pci_read_config_word(hw->pdev, - pcie_cap + PCI_EXP_DEVCTL2, &val); + if (pci_is_pcie(hw->pdev)) { + pcie_capability_read_word(hw->pdev, PCI_EXP_DEVCTL2, &val); val &= 0xfff0; val |= range ; - pci_write_config_word(hw->pdev, - pcie_cap + PCI_EXP_DEVCTL2, val); + pcie_capability_write_word(hw->pdev, PCI_EXP_DEVCTL2, val); } }
Pcie_capability_xxx() interfaces were introudced to simplify code to access PCIe Cap config space. And because PCI core saves the PCIe Cap offset in set_pcie_port_type() when device is enumerated. So we can use pci_is_pcie() instead. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Cc: Jiang Liu <jiang.liu@huawei.com> Cc: "James E.J. Bottomley" <JBottomley@parallels.com> Cc: Naresh Kumar Inna <naresh@chelsio.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jesper Juhl <jj@chaosbits.net> Cc: linux-scsi@vger.kernel.org Cc: linux-kernel@vger.kernel.org --- drivers/scsi/csiostor/csio_hw.c | 9 +++------ 1 files changed, 3 insertions(+), 6 deletions(-)