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From: Sean V Kelley <seanvk.dev@oregontracks.org>
To: bhelgaas@google.com, Jonathan.Cameron@huawei.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 v8 01/14] PCI/RCEC: Add RCEC class code and extended capability
Date: Fri,  2 Oct 2020 11:47:22 -0700
Message-ID: <20201002184735.1229220-2-seanvk.dev@oregontracks.org> (raw)
In-Reply-To: <20201002184735.1229220-1-seanvk.dev@oregontracks.org>

From: Qiuxu Zhuo <qiuxu.zhuo@intel.com>

A PCIe Root Complex Event Collector (RCEC) has the base class 0x08,
sub-class 0x07, and programming interface 0x00. Add the class code
0x0807 to identify RCEC devices and add the defines for the RCEC
Endpoint Association Extended Capability.

See PCI Express Base Specification, version 5.0-1, section "1.3.4
Root Complex Event Collector" and section "7.9.10 Root Complex
Event Collector Endpoint Association Extended Capability"

Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@intel.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 f9701410d3b5..f335f65f65d6 100644
--- a/include/uapi/linux/pci_regs.h
+++ b/include/uapi/linux/pci_regs.h
@@ -828,6 +828,13 @@
 #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 capability version that 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)
-- 
2.28.0


  reply index

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-02 18:47 [PATCH v8 00/14] Add RCEC handling to PCI/AER Sean V Kelley
2020-10-02 18:47 ` Sean V Kelley [this message]
2020-10-02 18:47 ` [PATCH v8 02/14] PCI/RCEC: Bind RCEC devices to the Root Port driver Sean V Kelley
2020-10-02 18:47 ` [PATCH v8 03/14] PCI/RCEC: Cache RCEC capabilities in pci_init_capabilities() Sean V Kelley
2020-10-02 18:47 ` [PATCH v8 04/14] PCI/ERR: Rename reset_link() to reset_subordinate_device() Sean V Kelley
2020-10-02 18:47 ` [PATCH v8 05/14] PCI/ERR: Use "bridge" for clarity in pcie_do_recovery() Sean V Kelley
2020-10-02 18:47 ` [PATCH v8 06/14] PCI/ERR: Add pci_walk_bridge() to pcie_do_recovery() Sean V Kelley
2020-10-02 18:47 ` [PATCH v8 07/14] PCI/ERR: Limit AER resets in pcie_do_recovery() Sean V Kelley
2020-10-02 18:47 ` [PATCH v8 08/14] PCI/AER: Extend AER error handling to RCECs Sean V Kelley
2020-10-09 21:27   ` Bjorn Helgaas
2020-10-09 21:54     ` Sean V Kelley
2020-10-02 18:47 ` [PATCH v8 09/14] PCI/AER: Apply function level reset to RCiEP on fatal error Sean V Kelley
2020-10-02 18:47 ` [PATCH v8 10/14] PCI/RCEC: Add pcie_link_rcec() to associate RCiEPs Sean V Kelley
2020-10-02 18:47 ` [PATCH v8 11/14] PCI/RCEC: Add RCiEP's linked RCEC to AER/ERR Sean V Kelley
2020-10-09 17:57   ` Bjorn Helgaas
2020-10-09 18:26     ` Sean V Kelley
2020-10-09 18:34       ` Sean V Kelley
2020-10-09 18:53         ` Sean V Kelley
2020-10-09 19:48           ` Sean V Kelley
2020-10-09 21:30     ` Bjorn Helgaas
2020-10-09 22:07       ` Sean V Kelley
2020-10-09 23:51         ` Kelley, Sean V
2020-10-12 22:58           ` Bjorn Helgaas
2020-10-13 16:55             ` Sean V Kelley
2020-10-02 18:47 ` [PATCH v8 12/14] PCI/AER: Add pcie_walk_rcec() to RCEC AER handling Sean V Kelley
2020-10-02 18:47 ` [PATCH v8 13/14] PCI/PME: Add pcie_walk_rcec() to RCEC PME handling Sean V Kelley
2020-10-02 18:47 ` [PATCH v8 14/14] PCI/AER: Add RCEC AER error injection support Sean V Kelley
2020-10-09 15:53 ` [PATCH v8 00/14] Add RCEC handling to PCI/AER Bjorn Helgaas

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