[PATCH RESEND] lspci: Decode VF 10-Bit Tag Requester

* [PATCH RESEND] lspci: Decode VF 10-Bit Tag Requester
@ 2021-03-03 11:14 Dongdong Liu
  2021-03-07  1:45 ` Krzysztof Wilczyński
  0 siblings, 1 reply; 4+ messages in thread
From: Dongdong Liu @ 2021-03-03 11:14 UTC (permalink / raw)
  To: mj, helgaas, linux-pci

Decode VF 10-Bit Tag Requester Supported and Enable bit
in SR-IOV Capabilities Register.

Sample output:
  IOVCap: Migration-, 10BitTagReq+, Interrupt Message Number: 000
  IOVCtl: Enable+ Migration- Interrupt- MSE+ ARIHierarchy- 10BitTagReq+

Signed-off-by: Dongdong Liu <liudongdong3@huawei.com>
---
 lib/header.h | 2 ++
 ls-ecaps.c   | 8 ++++----
 2 files changed, 6 insertions(+), 4 deletions(-)

diff --git a/lib/header.h b/lib/header.h
index 170e5c1..bff49c2 100644
--- a/lib/header.h
+++ b/lib/header.h
@@ -1126,6 +1126,7 @@
 /* Single Root I/O Virtualization */
 #define PCI_IOV_CAP		0x04	/* SR-IOV Capability Register */
 #define  PCI_IOV_CAP_VFM	0x00000001 /* VF Migration Capable */
+#define  PCI_IOV_CAP_VF_10BIT_TAG_REQ 0x00000004 /* VF 10-Bit Tag Requester Supported */
 #define  PCI_IOV_CAP_IMN(x)	((x) >> 21) /* VF Migration Interrupt Message Number */
 #define PCI_IOV_CTRL		0x08	/* SR-IOV Control Register */
 #define  PCI_IOV_CTRL_VFE	0x0001	/* VF Enable */
@@ -1133,6 +1134,7 @@
 #define  PCI_IOV_CTRL_VFMIE	0x0004	/* VF Migration Interrupt Enable */
 #define  PCI_IOV_CTRL_MSE	0x0008	/* VF MSE */
 #define  PCI_IOV_CTRL_ARI	0x0010	/* ARI Capable Hierarchy */
+#define  PCI_IOV_CTRL_VF_10BIT_TAG_REQ_EN 0x0020 /* VF 10-Bit Tag Requester Enable */
 #define PCI_IOV_STATUS		0x0a	/* SR-IOV Status Register */
 #define  PCI_IOV_STATUS_MS	0x0001	/* VF Migration Status */
 #define PCI_IOV_INITIALVF	0x0c	/* Number of VFs that are initially associated */
diff --git a/ls-ecaps.c b/ls-ecaps.c
index 99c55ff..9b50aec 100644
--- a/ls-ecaps.c
+++ b/ls-ecaps.c
@@ -369,13 +369,13 @@ cap_sriov(struct device *d, int where)
     return;
 
   l = get_conf_long(d, where + PCI_IOV_CAP);
-  printf("\t\tIOVCap:\tMigration%c, Interrupt Message Number: %03x\n",
-	FLAG(l, PCI_IOV_CAP_VFM), PCI_IOV_CAP_IMN(l));
+  printf("\t\tIOVCap:\tMigration%c, 10BitTagReq%c, Interrupt Message Number: %03x\n",
+	FLAG(l, PCI_IOV_CAP_VFM), FLAG(l, PCI_IOV_CAP_VF_10BIT_TAG_REQ), PCI_IOV_CAP_IMN(l));
   w = get_conf_word(d, where + PCI_IOV_CTRL);
-  printf("\t\tIOVCtl:\tEnable%c Migration%c Interrupt%c MSE%c ARIHierarchy%c\n",
+  printf("\t\tIOVCtl:\tEnable%c Migration%c Interrupt%c MSE%c ARIHierarchy%c 10BitTagReq%c\n",
 	FLAG(w, PCI_IOV_CTRL_VFE), FLAG(w, PCI_IOV_CTRL_VFME),
 	FLAG(w, PCI_IOV_CTRL_VFMIE), FLAG(w, PCI_IOV_CTRL_MSE),
-	FLAG(w, PCI_IOV_CTRL_ARI));
+	FLAG(w, PCI_IOV_CTRL_ARI), FLAG(w, PCI_IOV_CTRL_VF_10BIT_TAG_REQ_EN));
   w = get_conf_word(d, where + PCI_IOV_STATUS);
   printf("\t\tIOVSta:\tMigration%c\n", FLAG(w, PCI_IOV_STATUS_MS));
   w = get_conf_word(d, where + PCI_IOV_INITIALVF);
-- 
1.9.1


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