PCI/AER: Add PoisonTLPBlocked to Uncorrectable error counters

task #29600094

commit 6458b438ebc12bec732290bf80c53c4eeeaed1c0 upstream.
Backport summary: for 4.19 kernel ICX PCIe Gen4 support.

The elements in the aer_uncorrectable_error_string[] refer to the bit names
in Uncorrectable Error Status Register.  Add PoisonTLPBlocked, which was
added in PCIe r3.1, sec 7.10.2.

Link: https://lore.kernel.org/r/20190827222145.32642-1-rajatja@google.comSigned-off-by: NRajat Jain <rajatja@google.com>
Signed-off-by: NBjorn Helgaas <bhelgaas@google.com>
(cherry picked from commit 6458b438ebc12bec732290bf80c53c4eeeaed1c0)
Signed-off-by: NEthan Zhao <haifeng.zhao@intel.com>
Signed-off-by: NArtie Ding <artie.ding@linux.alibaba.com>
Acked-by: NCaspar Zhang <caspar@linux.alibaba.com>

drivers/pci/pcie/aer.c

@@ -36,7 +36,7 @@
 #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	26	/* as per PCI_ERR_UNCOR_STATUS*/
+#define AER_MAX_TYPEOF_UNCOR_ERRS	27	/* as per PCI_ERR_UNCOR_STATUS*/
 
 struct aer_err_source {
 	unsigned int status;
@@ -618,6 +618,7 @@ static const char *aer_uncorrectable_error_string[AER_MAX_TYPEOF_UNCOR_ERRS] = {
 	"BlockedTLP",			/* Bit Position 23	*/
 	"AtomicOpBlocked",		/* Bit Position 24	*/
 	"TLPBlockedErr",		/* Bit Position 25	*/
+	"PoisonTLPBlocked",		/* Bit Position 26	*/
 };
 
 static const char *aer_agent_string[] = {