[PATCH pciutils v2] ls-ecaps: Correct the link state reporting

[PATCH pciutils v2] ls-ecaps: Correct the link state reporting

[Alexey Kardashevskiy]

PCIe r6.0, sec 7.9.26.4.2 "Link IDE Stream Status Register defines"
the link state as:

0000b Insecure
0010b Secure

The same definition applies to selective streams as well.
The existing code wrongly assumes "secure" is 0001b, fix that for both
link and selective streams.

While at this, add missing "Selective IDE for Configuration Requests Enable".

Fixes: 42fc4263ec0e ("ls-ecaps: Add decode support for IDE Extended Capability")
Signed-off-by: Alexey Kardashevskiy <aik@amd.com>
---
Changes:
v2:
* fixed memory and RID base/limit values parsing
* added missing "IDE for Configuration Requests Enable"
* fixed the example
---
 lib/header.h  |  1 +
 ls-ecaps.c    | 13 +++++++++----
 tests/cap-ide | 12 ++++++------
 3 files changed, 16 insertions(+), 10 deletions(-)

diff --git a/lib/header.h b/lib/header.h
index 0b0ed9a..031912f 100644
--- a/lib/header.h
+++ b/lib/header.h
@@ -1464,6 +1464,7 @@
 #define  PCI_IDE_SEL_CTL_TX_AGGR_PR(x)	(((x) >> 4) & 0x3) /* Tx Aggregation Mode PR */
 #define  PCI_IDE_SEL_CTL_TX_AGGR_CPL(x)	(((x) >> 6) & 0x3) /* Tx Aggregation Mode CPL */
 #define  PCI_IDE_SEL_CTL_PCRC_EN	0x100	/* PCRC Enable */
+#define  PCI_IDE_SEL_CTL_CFG_EN         0x200   /* Selective IDE for Configuration Requests Enable */
 #define  PCI_IDE_SEL_CTL_PART_ENC(x)	(((x) >> 10) & 0xf)  /* Partial Header Encryption Mode */
 #define  PCI_IDE_SEL_CTL_ALG(x)		(((x) >> 14) & 0x1f) /* Selected Algorithm */
 #define  PCI_IDE_SEL_CTL_TC(x)		(((x) >> 19) & 0x7)  /* Traffic Class */
diff --git a/ls-ecaps.c b/ls-ecaps.c
index b40ba72..2340084 100644
--- a/ls-ecaps.c
+++ b/ls-ecaps.c
@@ -1512,7 +1512,7 @@ static void
 cap_ide(struct device *d, int where)
 {
     const char *hdr_enc_mode[] = { "no", "17:2", "25:2", "33:2", "41:2" };
-    const char *stream_state[] = { "insecure", "secure" };
+    const char *stream_state[] = { "insecure", "reserved", "secure" };
     const char *aggr[] = { "-", "=2", "=4", "=8" };
     u32 l, l2, linknum = 0, selnum = 0, addrnum, off, i, j;
     char buf1[16], buf2[16], offs[16];
@@ -1613,7 +1613,7 @@ cap_ide(struct device *d, int where)
         // Selective IDE Stream Control Register
         l = get_conf_long(d, off);
 
-        printf("\t\t%sSelectiveIDE#%d Ctl: En%c NPR%s PR%s CPL%s PCRC%c HdrEnc=%s Alg='%s' TC%d ID%d%s\n",
+        printf("\t\t%sSelectiveIDE#%d Ctl: En%c NPR%s PR%s CPL%s PCRC%c CFG%c HdrEnc=%s Alg='%s' TC%d ID%d%s\n",
           offstr(offs, off),
           i,
           FLAG(l, PCI_IDE_SEL_CTL_EN),
@@ -1621,6 +1621,7 @@ cap_ide(struct device *d, int where)
           aggr[PCI_IDE_SEL_CTL_TX_AGGR_PR(l)],
           aggr[PCI_IDE_SEL_CTL_TX_AGGR_CPL(l)],
           FLAG(l, PCI_IDE_SEL_CTL_PCRC_EN),
+          FLAG(l, PCI_IDE_SEL_CTL_CFG_EN),
           TABLE(hdr_enc_mode, PCI_IDE_SEL_CTL_PART_ENC(l), buf1),
           ide_alg(buf2, sizeof(buf2), PCI_IDE_SEL_CTL_ALG(l)),
           PCI_IDE_SEL_CTL_TC(l),
@@ -1664,14 +1665,18 @@ cap_ide(struct device *d, int where)
 
             l = get_conf_long(d, off);
             limit = get_conf_long(d, off + 4);
+            limit <<= 32;
+            limit |= (PCI_IDE_SEL_ADDR_1_LIMIT_LOW(l) << 20) | 0xFFFFF;
             base = get_conf_long(d, off + 8);
+            base <<= 32;
+            base |= PCI_IDE_SEL_ADDR_1_BASE_LOW(l) << 20;
             printf("\t\t%sSelectiveIDE#%d RID#%d: Valid%c Base=%lx Limit=%lx\n",
               offstr(offs, off),
               i,
               j,
               FLAG(l, PCI_IDE_SEL_ADDR_1_VALID),
-              (base << 32) | PCI_IDE_SEL_ADDR_1_BASE_LOW(l),
-              (limit << 32) | PCI_IDE_SEL_ADDR_1_LIMIT_LOW(l));
+              base,
+              limit);
             off += 12;
           }
       }
diff --git a/tests/cap-ide b/tests/cap-ide
index 01a9e09..edae551 100644
--- a/tests/cap-ide
+++ b/tests/cap-ide
@@ -79,10 +79,10 @@ e1:00.0 Class 0800: Device aaaa:bbbb
 		IDECap: Lnk=0 Sel=1 FlowThru- PartHdr- Aggr- PCPC- IDE_KM+ Alg='AES-GCM-256-96b' TCs=8 TeeLim+
 		IDECtl: FTEn-
 		SelectiveIDE#0 Cap: RID#=1
-		SelectiveIDE#0 Ctl: En- NPR- PR- CPL- PCRC- HdrEnc=no Alg='AES-GCM-256-96b' TC0 ID0
-		SelectiveIDE#0 Sta: insecure RecvChkFail-
-		SelectiveIDE#0 RID: Valid- Base=0 Limit=0 SegBase=0
-		SelectiveIDE#0 RID#0: Valid- Base=0 Limit=0
+		SelectiveIDE#0 Ctl: En+ NPR- PR- CPL- PCRC- CFG- HdrEnc=no Alg='AES-GCM-256-96b' TC0 ID0 Default
+		SelectiveIDE#0 Sta: secure RecvChkFail-
+		SelectiveIDE#0 RID: Valid+ Base=0 Limit=ffff SegBase=0
+		SelectiveIDE#0 RID#0: Valid+ Base=0 Limit=ffffffffffffffff
 	Capabilities: [e00 v2] Data Object Exchange
 		DOECap: IntSup-
 		DOECtl: IntEn-
@@ -219,8 +219,8 @@ f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 810: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 820: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 830: 30 00 01 e0 42 e0 00 01 00 00 00 00 01 00 00 00
-840: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-850: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
+840: 01 00 40 00 02 00 00 00 00 ff ff 00 01 00 00 00
+850: 01 00 f0 ff ff ff ff ff 00 00 00 00 00 00 00 00
 860: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 870: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
 880: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
-- 
2.41.0

Re: [PATCH pciutils v2] ls-ecaps: Correct the link state reporting

[Martin Mareš]

Hi!

> PCIe r6.0, sec 7.9.26.4.2 "Link IDE Stream Status Register defines"
> the link state as:
> 
> 0000b Insecure
> 0010b Secure
> 
> The same definition applies to selective streams as well.
> The existing code wrongly assumes "secure" is 0001b, fix that for both
> link and selective streams.
> 
> While at this, add missing "Selective IDE for Configuration Requests Enable".
> 
> Fixes: 42fc4263ec0e ("ls-ecaps: Add decode support for IDE Extended Capability")
> Signed-off-by: Alexey Kardashevskiy <aik@amd.com>
> ---
> Changes:
> v2:
> * fixed memory and RID base/limit values parsing
> * added missing "IDE for Configuration Requests Enable"
> * fixed the example

Fine, but please update the commit message to include the fix of base/limit.

					Martin