From: "Chen, Gong" <gong.chen@linux.intel.com>
To: bhelgaas@google.com, rdunlap@infradead.org, bp@alien8.de,
tony.luck@intel.com
Cc: linux-pci@vger.kernel.org, "Chen, Gong" <gong.chen@linux.intel.com>
Subject: [PATCH 4/5] PCI-e, AER: Make AER UC status naming clearer
Date: Wed, 6 Aug 2014 04:32:43 -0400 [thread overview]
Message-ID: <1407313964-20794-4-git-send-email-gong.chen@linux.intel.com> (raw)
In-Reply-To: <1407313964-20794-1-git-send-email-gong.chen@linux.intel.com>
In PCI-e SPEC r3.0, BIT 0 of Uncorrectable Error Status Register
has been redefined for a different purpose.
BIT 0:
Undefined – The value read from this bit is undefined. In
previous versions of this specification, this
bit was used to mask a Link Training Error.
System software must ignore the value read from
this bit. System software must only write a value
of 1b to this bit.
Update related MACRO definition to reflect this change.
Signed-off-by: Chen, Gong <gong.chen@linux.intel.com>
---
drivers/vfio/pci/vfio_pci_config.c | 2 +-
include/ras/ras_event.h | 2 +-
include/uapi/linux/pci_regs.h | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/vfio/pci/vfio_pci_config.c b/drivers/vfio/pci/vfio_pci_config.c
index e50790e..1de3f94 100644
--- a/drivers/vfio/pci/vfio_pci_config.c
+++ b/drivers/vfio/pci/vfio_pci_config.c
@@ -727,7 +727,7 @@ static int __init init_pci_ext_cap_err_perm(struct perm_bits *perm)
p_setd(perm, 0, ALL_VIRT, NO_WRITE);
/* Writable bits mask */
- mask = PCI_ERR_UNC_TRAIN | /* Training */
+ mask = PCI_ERR_UNC_UND | /* Undefined */
PCI_ERR_UNC_DLP | /* Data Link Protocol */
PCI_ERR_UNC_SURPDN | /* Surprise Down */
PCI_ERR_UNC_POISON_TLP | /* Poisoned TLP */
diff --git a/include/ras/ras_event.h b/include/ras/ras_event.h
index 0f04a97..79abb9c 100644
--- a/include/ras/ras_event.h
+++ b/include/ras/ras_event.h
@@ -185,7 +185,7 @@ TRACE_EVENT(mc_event,
{PCI_ERR_COR_LOG_OVER, "Header Log Overflow"}
#define aer_uncorrectable_errors \
- {PCI_ERR_UNC_TRAIN, "Undefined"}, \
+ {PCI_ERR_UNC_UND, "Undefined"}, \
{PCI_ERR_UNC_DLP, "Data Link Protocol Error"}, \
{PCI_ERR_UNC_SURPDN, "Surprise Down Error"}, \
{PCI_ERR_UNC_POISON_TLP,"Poisoned TLP"}, \
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index 30db069..99e3182 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -630,7 +630,7 @@
/* Advanced Error Reporting */
#define PCI_ERR_UNCOR_STATUS 4 /* Uncorrectable Error Status */
-#define PCI_ERR_UNC_TRAIN 0x00000001 /* Training */
+#define PCI_ERR_UNC_UND 0x00000001 /* Undefined */
#define PCI_ERR_UNC_DLP 0x00000010 /* Data Link Protocol */
#define PCI_ERR_UNC_SURPDN 0x00000020 /* Surprise Down */
#define PCI_ERR_UNC_POISON_TLP 0x00001000 /* Poisoned TLP */
--
2.0.0.rc2
next prev parent reply other threads:[~2014-08-06 9:04 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-06 8:32 [PATCH 1/5] RAS, trace: Update error definition format Chen, Gong
2014-08-06 8:32 ` [PATCH 2/5] PCI-e, AER: Replenish missed AER status bits for AER driver Chen, Gong
2014-08-06 8:32 ` [PATCH 3/5] PCI-e, trace: Replenish missed AER status bits for PCIE trace I/F Chen, Gong
2014-08-06 8:32 ` Chen, Gong [this message]
2014-08-06 8:32 ` [RFC PATCH 5/5] PCI, aer: Update initial value of UC error mask Chen, Gong
2014-08-06 9:32 ` [PATCH 1/5] RAS, trace: Update error definition format Borislav Petkov
2014-08-06 9:08 ` Chen, Gong
2014-08-06 9:59 ` Borislav Petkov
2014-08-07 0:59 ` Chen, Gong
2014-08-10 12:13 ` Chen, Gong
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1407313964-20794-4-git-send-email-gong.chen@linux.intel.com \
--to=gong.chen@linux.intel.com \
--cc=bhelgaas@google.com \
--cc=bp@alien8.de \
--cc=linux-pci@vger.kernel.org \
--cc=rdunlap@infradead.org \
--cc=tony.luck@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).