Clear 10-bit tags unconditionally as there is no guarantee that the next device inserted will support this feature. Signed-off-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@xxxxxxx> --- drivers/pci/pcie/dpc.c | 3 ++- include/uapi/linux/pci_regs.h | 1 + 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/pci/pcie/dpc.c b/drivers/pci/pcie/dpc.c index e422876f51ad..8e02a32134ab 100644 --- a/drivers/pci/pcie/dpc.c +++ b/drivers/pci/pcie/dpc.c @@ -331,7 +331,8 @@ static void pciehp_handle_surprise_removal(struct pci_dev *pdev) * and any newly added component may not be an ARI device. */ pcie_capability_clear_word(pdev, PCI_EXP_DEVCTL2, - (PCI_EXP_DEVCTL2_ARI | PCI_EXP_DEVCTL2_ATOMIC_REQ)); + (PCI_EXP_DEVCTL2_ARI | PCI_EXP_DEVCTL2_ATOMIC_REQ | + PCI_EXP_DEVCTL2_TAG_REQ_EN)); pci_write_config_word(pdev, pdev->dpc_cap + PCI_EXP_DPC_STATUS, PCI_EXP_DPC_STATUS_TRIGGER); diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h index 57b8e2ffb1dd..65e1075b7db1 100644 --- a/include/uapi/linux/pci_regs.h +++ b/include/uapi/linux/pci_regs.h @@ -668,6 +668,7 @@ #define PCI_EXP_DEVCTL2_IDO_REQ_EN 0x0100 /* Allow IDO for requests */ #define PCI_EXP_DEVCTL2_IDO_CMP_EN 0x0200 /* Allow IDO for completions */ #define PCI_EXP_DEVCTL2_LTR_EN 0x0400 /* Enable LTR mechanism */ +#define PCI_EXP_DEVCTL2_TAG_REQ_EN 0x1000 /* Allow 10 Tags for Requester */ #define PCI_EXP_DEVCTL2_OBFF_MSGA_EN 0x2000 /* Enable OBFF Message type A */ #define PCI_EXP_DEVCTL2_OBFF_MSGB_EN 0x4000 /* Enable OBFF Message type B */ #define PCI_EXP_DEVCTL2_OBFF_WAKE_EN 0x6000 /* OBFF using WAKE# signaling */ -- 2.17.1
