PCI/AER: Support errors introduced by PCIe r6.0

PCIe r6.0 defined five additional errors in the Uncorrectable Error
Status, Mask and Severity Registers (PCIe r7.0 sec 7.8.4.2ff).

lspci has been supporting them since commit 144b0911cc0b ("ls-ecaps:
extend decode support for more fields for AER CE and UE status"):

  https://git.kernel.org/pub/scm/utils/pciutils/pciutils.git/commit/?id=144b0911cc0b

Amend the AER driver to recognize them as well, instead of logging them as
"Unknown Error Bit".

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Cc: stable@vger.kernel.org
Link: https://patch.msgid.link/21f1875b18d4078c99353378f37dcd6b994f6d4e.1756301211.git.lukas@wunner.de

diff --git a/drivers/pci/pcie/aer.c b/drivers/pci/pcie/aer.c
index e286c197d7167af3952e23a28006926d32f445e1..15ed541d2fbe49fd7e9b7c2bd71a612b97250a1b 100644 (file)
--- a/drivers/pci/pcie/aer.c
+++ b/drivers/pci/pcie/aer.c
@@ -43,7 +43,7 @@
 #define AER_ERROR_SOURCES_MAX          128
 
 #define AER_MAX_TYPEOF_COR_ERRS                16      /* as per PCI_ERR_COR_STATUS */
-#define AER_MAX_TYPEOF_UNCOR_ERRS      27      /* as per PCI_ERR_UNCOR_STATUS*/
+#define AER_MAX_TYPEOF_UNCOR_ERRS      32      /* as per PCI_ERR_UNCOR_STATUS*/
 
 struct aer_err_source {
        u32 status;                     /* PCI_ERR_ROOT_STATUS */
@@ -525,11 +525,11 @@ static const char *aer_uncorrectable_error_string[] = {
        "AtomicOpBlocked",              /* Bit Position 24      */
        "TLPBlockedErr",                /* Bit Position 25      */
        "PoisonTLPBlocked",             /* Bit Position 26      */
-       NULL,                           /* Bit Position 27      */
-       NULL,                           /* Bit Position 28      */
-       NULL,                           /* Bit Position 29      */
-       NULL,                           /* Bit Position 30      */
-       NULL,                           /* Bit Position 31      */
+       "DMWrReqBlocked",               /* Bit Position 27      */
+       "IDECheck",                     /* Bit Position 28      */
+       "MisIDETLP",                    /* Bit Position 29      */
+       "PCRC_CHECK",                   /* Bit Position 30      */
+       "TLPXlatBlocked",               /* Bit Position 31      */
 };
 
 static const char *aer_agent_string[] = {