@@ -219,7 +219,7 @@
#define PCI_EXT_CAP_ID_PB 0x04 /* Power Budgeting */
#define PCI_EXT_CAP_ID_RCLINK 0x05 /* Root Complex Link Declaration */
#define PCI_EXT_CAP_ID_RCILINK 0x06 /* Root Complex Internal Link Declaration */
-#define PCI_EXT_CAP_ID_RCECOLL 0x07 /* Root Complex Event Collector */
+#define PCI_EXT_CAP_ID_RCEC 0x07 /* Root Complex Event Collector */
#define PCI_EXT_CAP_ID_MFVC 0x08 /* Multi-Function Virtual Channel */
#define PCI_EXT_CAP_ID_VC2 0x09 /* Virtual Channel (2nd ID) */
#define PCI_EXT_CAP_ID_RCRB 0x0a /* Root Complex Register Block */
@@ -1048,6 +1048,12 @@
#define PCI_RCLINK_LINK_ADDR 8 /* Link Entry: Address (64-bit) */
#define PCI_RCLINK_LINK_SIZE 16 /* Link Entry: sizeof */
+/* Root Complex Event Collector */
+#define PCI_RCEC_EP_CAP_VER(reg) (((reg) >> 16) & 0xf)
+#define PCI_RCEC_BUSN_REG_VER 0x02 /* as per PCIe sec 7.9.10.1 */
+#define PCI_RCEC_RCIEP_BMAP 0x0004 /* as per PCIe sec 7.9.10.2 */
+#define PCI_RCEC_BUSN_REG 0x0008 /* as per PCIe sec 7.9.10.3 */
+
/* PCIe Vendor-Specific Capability */
#define PCI_EVNDR_HEADER 4 /* Vendor-Specific Header */
#define PCI_EVNDR_REGISTERS 8 /* Vendor-Specific Registers */
@@ -634,6 +634,32 @@ cap_rclink(struct device *d, int where)
}
}
+static void
+cap_rcec(struct device *d, int where)
+{
+ printf("Root Complex Event Collector\n");
+ if (verbose < 2)
+ return;
+
+ if (!config_fetch(d, where, 12))
+ return;
+
+ u32 hdr = get_conf_long(d, where);
+ byte cap_ver = PCI_RCEC_EP_CAP_VER(hdr);
+ u32 bmap = get_conf_long(d, where + PCI_RCEC_RCIEP_BMAP);
+ printf("\t\tDesc:\tCapabilityVersion=%02x RCiEPBitmap=%08x\n",
+ cap_ver,
+ bmap);
+
+ if (cap_ver < PCI_RCEC_BUSN_REG_VER)
+ return;
+
+ u32 busn = get_conf_long(d, where + PCI_RCEC_BUSN_REG);
+ printf("\t\t\tRCECLastBus=%02x RCECFirstBus=%02x\n",
+ BITS(busn, 16, 8),
+ BITS(busn, 8, 8));
+}
+
static void
cap_dvsec_cxl(struct device *d, int where)
{
@@ -991,8 +1017,8 @@ show_ext_caps(struct device *d, int type)
case PCI_EXT_CAP_ID_RCILINK:
printf("Root Complex Internal Link <?>\n");
break;
- case PCI_EXT_CAP_ID_RCECOLL:
- printf("Root Complex Event Collector <?>\n");
+ case PCI_EXT_CAP_ID_RCEC:
+ cap_rcec(d, where);
break;
case PCI_EXT_CAP_ID_MFVC:
printf("Multi-Function Virtual Channel <?>\n");
@@ -350,7 +350,7 @@ static const struct reg_name pci_reg_names[] = {
{ 0x20004, 0, 0, "ECAP_PB" },
{ 0x20005, 0, 0, "ECAP_RCLINK" },
{ 0x20006, 0, 0, "ECAP_RCILINK" },
- { 0x20007, 0, 0, "ECAP_RCECOLL" },
+ { 0x20007, 0, 0, "ECAP_RCEC" },
{ 0x20008, 0, 0, "ECAP_MFVC" },
{ 0x20009, 0, 0, "ECAP_VC2" },
{ 0x2000a, 0, 0, "ECAP_RBCB" },
new file mode 100644
@@ -0,0 +1,299 @@
+6a:00.4 Generic system peripheral [0807]: Intel Corporation Device 0b23
+ Subsystem: Intel Corporation Device 0000
+ Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR+ FastB2B- DisINTx-
+ Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
+ Interrupt: pin A routed to IRQ 255
+ NUMA node: 0
+ Capabilities: [40] Express (v2) Root Complex Event Collector, MSI 00
+ DevCap: MaxPayload 512 bytes, PhantFunc 0
+ ExtTag- RBE-
+ DevCtl: CorrErr+ NonFatalErr+ FatalErr+ UnsupReq-
+ RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop-
+ MaxPayload 128 bytes, MaxReadReq 128 bytes
+ DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr- TransPend-
+ RootCap: CRSVisible-
+ RootCtl: ErrCorrectable+ ErrNon-Fatal+ ErrFatal+ PMEIntEna- CRSVisible-
+ RootSta: PME ReqID 0000, PMEStatus- PMEPending-
+ DevCap2: Completion Timeout: Not Supported, TimeoutDis- NROPrPrP- LTR-
+ 10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
+ EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
+ FRS-
+ DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- OBFF Disabled,
+ Capabilities: [80] Power Management version 3
+ Flags: PMEClk- DSI- D1- D2- AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
+ Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
+ Capabilities: [90] MSI: Enable- Count=1/1 Maskable+ 64bit-
+ Address: 00000000 Data: 0000
+ Masking: 00000000 Pending: 00000000
+ Capabilities: [100 v1] Advanced Error Reporting
+ UESta: DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
+ UEMsk: DLP- SDES+ TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq+ ACSViol-
+ UESvrt: DLP+ SDES- TLP+ FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
+ CESta: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
+ CEMsk: RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
+ AERCap: First Error Pointer: 00, ECRCGenCap- ECRCGenEn- ECRCChkCap- ECRCChkEn-
+ MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
+ HeaderLog: 00000000 00000000 00000000 00000000
+ RootCmd: CERptEn- NFERptEn- FERptEn-
+ RootSta: CERcvd- MultCERcvd- UERcvd- MultUERcvd-
+ FirstFatal- NonFatalMsg- FatalMsg- IntMsg 0
+ ErrorSrc: ERR_COR: 0000 ERR_FATAL/NONFATAL: 0000
+ Capabilities: [160 v2] Root Complex Event Collector
+ Desc: CapabilityVersion=02 RCiEPBitmap=00000000
+ RCECLastBus=00 RCECFirstBus=ff
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Root Complex Event Collectors provide support for terminating error and PME messages from RCiEPs. This patch provides basic decoding for lspci RCEC Endpoint Association Extended Capability. See PCie 5.0-1, sec 7.9.10 for further details. Signed-off-by: Sean V Kelley <sean.v.kelley@linux.intel.com> --- lib/header.h | 8 +- ls-ecaps.c | 30 ++++- setpci.c | 2 +- tests/cap-rcec | 299 +++++++++++++++++++++++++++++++++++++++++++++++++ 4 files changed, 335 insertions(+), 4 deletions(-) create mode 100644 tests/cap-rcec