From: Sean V Kelley <sean.v.kelley@intel.com>
To: bhelgaas@google.com, Jonathan.Cameron@huawei.com,
xerces.zhao@gmail.com, rafael.j.wysocki@intel.com,
ashok.raj@intel.com, tony.luck@intel.com,
sathyanarayanan.kuppuswamy@intel.com, qiuxu.zhuo@intel.com
Cc: linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v11 02/16] PCI/RCEC: Add RCEC class code and extended capability
Date: Tue, 17 Nov 2020 11:19:40 -0800 [thread overview]
Message-ID: <20201117191954.1322844-3-sean.v.kelley@intel.com> (raw)
In-Reply-To: <20201117191954.1322844-1-sean.v.kelley@intel.com>
From: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
A PCIe Root Complex Event Collector (RCEC) has base class 0x08, sub-class
0x07, and programming interface 0x00. Add the class code 0x0807 to
identify RCEC devices and add #defines for the RCEC Endpoint Association
Extended Capability.
See PCIe r5.0, sec 1.3.4 ("Root Complex Event Collector") and sec 7.9.10
("Root Complex Event Collector Endpoint Association Extended Capability").
Link: https://lore.kernel.org/r/20201002184735.1229220-2-seanvk.dev@oregontracks.org
Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
---
include/linux/pci_ids.h | 1 +
include/uapi/linux/pci_regs.h | 7 +++++++
2 files changed, 8 insertions(+)
diff --git a/include/linux/pci_ids.h b/include/linux/pci_ids.h
index 1ab1e24bcbce..d8156a5dbee8 100644
--- a/include/linux/pci_ids.h
+++ b/include/linux/pci_ids.h
@@ -81,6 +81,7 @@
#define PCI_CLASS_SYSTEM_RTC 0x0803
#define PCI_CLASS_SYSTEM_PCI_HOTPLUG 0x0804
#define PCI_CLASS_SYSTEM_SDHCI 0x0805
+#define PCI_CLASS_SYSTEM_RCEC 0x0807
#define PCI_CLASS_SYSTEM_OTHER 0x0880
#define PCI_BASE_CLASS_INPUT 0x09
diff --git a/include/uapi/linux/pci_regs.h b/include/uapi/linux/pci_regs.h
index a95d55f9f257..bccd3e35cb65 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -831,6 +831,13 @@
#define PCI_PWR_CAP_BUDGET(x) ((x) & 1) /* Included in system budget */
#define PCI_EXT_CAP_PWR_SIZEOF 16
+/* Root Complex Event Collector Endpoint Association */
+#define PCI_RCEC_RCIEP_BITMAP 4 /* Associated Bitmap for RCiEPs */
+#define PCI_RCEC_BUSN 8 /* RCEC Associated Bus Numbers */
+#define PCI_RCEC_BUSN_REG_VER 0x02 /* Least version with BUSN present */
+#define PCI_RCEC_BUSN_NEXT(x) (((x) >> 8) & 0xff)
+#define PCI_RCEC_BUSN_LAST(x) (((x) >> 16) & 0xff)
+
/* Vendor-Specific (VSEC, PCI_EXT_CAP_ID_VNDR) */
#define PCI_VNDR_HEADER 4 /* Vendor-Specific Header */
#define PCI_VNDR_HEADER_ID(x) ((x) & 0xffff)
--
2.29.2
next prev parent reply other threads:[~2020-11-17 19:21 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-17 19:19 [PATCH v11 00/16] Add RCEC handling to PCI/AER Sean V Kelley
2020-11-17 19:19 ` [PATCH v11 01/16] AER: aer_root_reset() non-native handling Sean V Kelley
2020-11-17 20:04 ` Kuppuswamy, Sathyanarayanan
2020-11-17 19:19 ` Sean V Kelley [this message]
2020-11-17 20:07 ` [PATCH v11 02/16] PCI/RCEC: Add RCEC class code and extended capability Kuppuswamy, Sathyanarayanan
2020-11-17 22:39 ` Kelley, Sean V
2020-11-17 19:19 ` [PATCH v11 03/16] PCI/RCEC: Bind RCEC devices to the Root Port driver Sean V Kelley
2020-11-17 20:09 ` Kuppuswamy, Sathyanarayanan
2020-11-17 19:19 ` [PATCH v11 04/16] PCI/RCEC: Cache RCEC capabilities in pci_init_capabilities() Sean V Kelley
2020-11-17 19:19 ` [PATCH v11 05/16] PCI/ERR: Rename reset_link() to reset_subordinates() Sean V Kelley
2020-11-17 20:10 ` Kuppuswamy, Sathyanarayanan
2020-11-17 19:19 ` [PATCH v11 06/16] PCI/ERR: Simplify by using pci_upstream_bridge() Sean V Kelley
2020-11-17 20:11 ` Kuppuswamy, Sathyanarayanan
2020-11-17 19:19 ` [PATCH v11 07/16] PCI/ERR: Simplify by computing pci_pcie_type() once Sean V Kelley
2020-11-17 21:58 ` Kuppuswamy, Sathyanarayanan
2020-11-17 22:47 ` Kelley, Sean V
2020-11-17 19:19 ` [PATCH v11 08/16] PCI/ERR: Use "bridge" for clarity in pcie_do_recovery() Sean V Kelley
2020-11-17 21:59 ` Kuppuswamy, Sathyanarayanan
2020-11-17 19:19 ` [PATCH v11 09/16] PCI/ERR: Avoid negated conditional for clarity Sean V Kelley
2020-11-17 22:00 ` Kuppuswamy, Sathyanarayanan
2020-11-17 19:19 ` [PATCH v11 10/16] PCI/ERR: Add pci_walk_bridge() to pcie_do_recovery() Sean V Kelley
2020-11-17 19:19 ` [PATCH v11 11/16] PCI/ERR: Limit AER resets in pcie_do_recovery() Sean V Kelley
2020-11-17 19:19 ` [PATCH v11 12/16] PCI/RCEC: Add pcie_link_rcec() to associate RCiEPs Sean V Kelley
2020-11-17 19:19 ` [PATCH v11 13/16] PCI/RCEC: Add RCiEP's linked RCEC to AER/ERR Sean V Kelley
2020-11-17 19:19 ` [PATCH v11 14/16] PCI/AER: Add pcie_walk_rcec() to RCEC AER handling Sean V Kelley
2020-11-18 6:04 ` Kuppuswamy, Sathyanarayanan
2020-11-17 19:19 ` [PATCH v11 15/16] PCI/PME: Add pcie_walk_rcec() to RCEC PME handling Sean V Kelley
2020-11-18 6:03 ` Kuppuswamy, Sathyanarayanan
2020-11-18 16:11 ` Kelley, Sean V
2020-11-17 19:19 ` [PATCH v11 16/16] PCI/AER: Add RCEC AER error injection support Sean V Kelley
2020-11-18 6:02 ` Kuppuswamy, Sathyanarayanan
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