Signed-off-by: Yu Zhao <yu.zhao@xxxxxxxxx>
lib/header.h | 20 ++++++++++++++++++++
lspci.c | 25 ++++++++++++++++++++++++-
2 files changed, 44 insertions(+), 1 deletion(-)
diff --git a/lib/header.h b/lib/header.h
index ef4b8fb..d2ad400 100644
--- a/lib/header.h
+++ b/lib/header.h
@@ -921,6 +921,26 @@ #define PCI_PWR_DATA_RAIL(x) (((x) >> 1
#define PCI_PWR_CAP 12 /* Capability */
#define PCI_PWR_CAP_BUDGET(x) ((x) & 1) /* Included in system budget */
+/* Access Control Services */
+#define PCI_ACS_CAP 0x04 /* ACS Capability Register */
+#define PCI_ACS_CAP_VALID 0x0001 /* ACS Source Validation */
+#define PCI_ACS_CAP_BLOCK 0x0002 /* ACS Translation Blocking */
+#define PCI_ACS_CAP_REQ_RED 0x0004 /* ACS P2P Request Redirect */
+#define PCI_ACS_CAP_CMPLT_RED 0x0008 /* ACS P2P Completion Redirect */
+#define PCI_ACS_CAP_FORWARD 0x0010 /* ACS Upstream Forwarding */
+#define PCI_ACS_CAP_EGRESS 0x0020 /* ACS P2P Egress Control */
+#define PCI_ACS_CAP_TRANS 0x0040 /* ACS Direct Translated P2P */
+#define PCI_ACS_CAP_VECTOR(x) (((x) >> 8) & 0xff) /* Egress Control Vector Size */
+#define PCI_ACS_CTRL 0x06 /* ACS Control Register */
+#define PCI_ACS_CTRL_VALID 0x0001 /* ACS Source Validation Enable */
+#define PCI_ACS_CTRL_BLOCK 0x0002 /* ACS Translation Blocking Enable */
+#define PCI_ACS_CTRL_REQ_RED 0x0004 /* ACS P2P Request Redirect Enable */
+#define PCI_ACS_CTRL_CMPLT_RED 0x0008 /* ACS P2P Completion Redirect Enable */
+#define PCI_ACS_CTRL_FORWARD 0x0010 /* ACS Upstream Forwarding Enable */
+#define PCI_ACS_CTRL_EGRESS 0x0020 /* ACS P2P Egress Control Enable */
+#define PCI_ACS_CTRL_TRANS 0x0040 /* ACS Direct Translated P2P Enable */
+#define PCI_ACS_EGRESS_CTRL 0x08 /* Egress Control Vector */
+
/*
* The PCI interface treats multi-function devices as independent
* devices. The slot/function address of each device is encoded
diff --git a/lspci.c b/lspci.c
index 207ca60..ce6d54a 100644
--- a/lspci.c
+++ b/lspci.c
@@ -1536,6 +1536,29 @@ cap_aer(struct device *d, int where)
}
static void
+cap_acs(struct device *d, int where)
+{
+ u16 w;
+
+ printf("Access Control Services\n");
+ if (!config_fetch(d, where + PCI_ACS_CAP, 4))
+ return;
+
+ w = get_conf_word(d, where + PCI_ACS_CAP);
+ printf("\t\tACSCap:\tSrcValid%c TransBlk%c ReqRedir%c CmpltRedir%c UpstreamFwd%c EgressCtrl%c "
+ "DirectTrans%c\n",
+ FLAG(w, PCI_ACS_CAP_VALID), FLAG(w, PCI_ACS_CAP_BLOCK), FLAG(w, PCI_ACS_CAP_REQ_RED),
+ FLAG(w, PCI_ACS_CAP_CMPLT_RED), FLAG(w, PCI_ACS_CAP_FORWARD), FLAG(w, PCI_ACS_CAP_EGRESS),
+ FLAG(w, PCI_ACS_CAP_TRANS));
+ w = get_conf_word(d, where + PCI_ACS_CTRL);
+ printf("\t\tACSCtl:\tSrcValid%c TransBlk%c ReqRedir%c CmpltRedir%c UpstreamFwd%c EgressCtrl%c "
+ "DirectTrans%c\n",
+ FLAG(w, PCI_ACS_CTRL_VALID), FLAG(w, PCI_ACS_CTRL_BLOCK), FLAG(w, PCI_ACS_CTRL_REQ_RED),
+ FLAG(w, PCI_ACS_CTRL_CMPLT_RED), FLAG(w, PCI_ACS_CTRL_FORWARD), FLAG(w, PCI_ACS_CTRL_EGRESS),
+ FLAG(w, PCI_ACS_CTRL_TRANS));
+}
+
+static void
show_ext_caps(struct device *d)
{
int where = 0x100;
@@ -1591,7 +1614,7 @@ show_ext_caps(struct device *d)
printf("Vendor Specific Information <?>\n");
break;
case PCI_EXT_CAP_ID_ACS:
- printf("Access Controls <?>\n");
+ cap_acs(d, where);
break;
default:
printf("#%02x\n", id);
--
To unsubscribe from this list: send the line "unsubscribe linux-pci" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
