[PATCH 1/3] PCI: Xilinx NWL PCIe: Expanding PCIe core errors and printing event occurred.
From: helgaas@kernel.org (Bjorn Helgaas)
Date: 2016-09-13 15:18:13
Also in:
linux-pci, lkml
On Tue, Aug 30, 2016 at 04:09:16PM +0530, Bharat Kumar Gogada wrote:
The current driver prints pcie core error, for all core events. Instead of just printing PCIe core error, now adding prints to show individual core events occurred. Signed-off-by: Bharat Kumar Gogada <redacted>
I applied the first two patches to pci/host-xilinx for v4.9, thanks! I'd like to work on the third one a little more, as I mentioned in my response to it.
quoted hunk ↗ jump to hunk
--- drivers/pci/host/pcie-xilinx-nwl.c | 48 +++++++++++++++++++++++++++++++------- 1 file changed, 40 insertions(+), 8 deletions(-)diff --git a/drivers/pci/host/pcie-xilinx-nwl.c b/drivers/pci/host/pcie-xilinx-nwl.c index 3479d30..86c1834 100644 --- a/drivers/pci/host/pcie-xilinx-nwl.c +++ b/drivers/pci/host/pcie-xilinx-nwl.c@@ -85,10 +85,15 @@ #define MSGF_MISC_SR_MASTER_ERR BIT(5) #define MSGF_MISC_SR_I_ADDR_ERR BIT(6) #define MSGF_MISC_SR_E_ADDR_ERR BIT(7) -#define MSGF_MISC_SR_UR_DETECT BIT(20) - -#define MSGF_MISC_SR_PCIE_CORE GENMASK(18, 16) -#define MSGF_MISC_SR_PCIE_CORE_ERR GENMASK(31, 22) +#define MSGF_MISC_SR_FATAL_AER BIT(16) +#define MSGF_MISC_SR_NON_FATAL_AER BIT(17) +#define MSGF_MISC_SR_CORR_AER BIT(18) +#define MSGF_MISC_SR_UR_DETECT BIT(20) +#define MSGF_MISC_SR_NON_FATAL_DEV BIT(22) +#define MSGF_MISC_SR_FATAL_DEV BIT(23) +#define MSGF_MISC_SR_LINK_DOWN BIT(24) +#define MSGF_MSIC_SR_LINK_AUTO_BWIDTH BIT(25) +#define MSGF_MSIC_SR_LINK_BWIDTH BIT(26) #define MSGF_MISC_SR_MASKALL (MSGF_MISC_SR_RXMSG_AVAIL | \ MSGF_MISC_SR_RXMSG_OVER | \@@ -96,9 +101,15 @@ MSGF_MISC_SR_MASTER_ERR | \ MSGF_MISC_SR_I_ADDR_ERR | \ MSGF_MISC_SR_E_ADDR_ERR | \ + MSGF_MISC_SR_FATAL_AER | \ + MSGF_MISC_SR_NON_FATAL_AER | \ + MSGF_MISC_SR_CORR_AER | \ MSGF_MISC_SR_UR_DETECT | \ - MSGF_MISC_SR_PCIE_CORE | \ - MSGF_MISC_SR_PCIE_CORE_ERR) + MSGF_MISC_SR_NON_FATAL_DEV | \ + MSGF_MISC_SR_FATAL_DEV | \ + MSGF_MISC_SR_LINK_DOWN | \ + MSGF_MSIC_SR_LINK_AUTO_BWIDTH | \ + MSGF_MSIC_SR_LINK_BWIDTH) /* Legacy interrupt status mask bits */ #define MSGF_LEG_SR_INTA BIT(0)@@ -291,8 +302,29 @@ static irqreturn_t nwl_pcie_misc_handler(int irq, void *data) dev_err(pcie->dev, "In Misc Egress address translation error\n"); - if (misc_stat & MSGF_MISC_SR_PCIE_CORE_ERR) - dev_err(pcie->dev, "PCIe Core error\n"); + if (misc_stat & MSGF_MISC_SR_FATAL_AER) + dev_err(pcie->dev, "Fatal Error in AER Capability\n"); + + if (misc_stat & MSGF_MISC_SR_NON_FATAL_AER) + dev_err(pcie->dev, "Non-Fatal Error in AER Capability\n"); + + if (misc_stat & MSGF_MISC_SR_CORR_AER) + dev_err(pcie->dev, "Correctable Error in AER Capability\n"); + + if (misc_stat & MSGF_MISC_SR_UR_DETECT) + dev_err(pcie->dev, "Unsupported request Detected\n"); + + if (misc_stat & MSGF_MISC_SR_NON_FATAL_DEV) + dev_err(pcie->dev, "Non-Fatal Error Detected\n"); + + if (misc_stat & MSGF_MISC_SR_FATAL_DEV) + dev_err(pcie->dev, "Fatal Error Detected\n"); + + if (misc_stat & MSGF_MSIC_SR_LINK_AUTO_BWIDTH) + dev_info(pcie->dev, "Link Autonomous Bandwidth Management Status bit set\n"); + + if (misc_stat & MSGF_MSIC_SR_LINK_BWIDTH) + dev_info(pcie->dev, "Link Bandwidth Management Status bit set\n"); /* Clear misc interrupt status */ nwl_bridge_writel(pcie, misc_stat, MSGF_MISC_STATUS);-- 2.1.1 -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo at vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html