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PCI: xilinx-nwl: Expand error logging 

The current driver logs PCIe core errors.  Add logging for individual core
events.

[bhelgaas: changelog]
Signed-off-by: Bharat Kumar Gogada <bharatku@xilinx.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
This commit is contained in:
Bharat Kumar Gogada 2016-08-30 16:09:16 +05:30 committed by Bjorn Helgaas
parent 29b4817d40
commit c2a7ff18ed
1 changed files with 40 additions and 8 deletions
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48
drivers/pci/host/pcie-xilinx-nwl.c
View File

@ -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);