netdev - [PATCH ethtool 4/4] igc: Parse ETQF registers

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Tue,  7 Jul 2020 16:48:00 -0700
From:   Andre Guedes <andre.guedes@...el.com>
To:     netdev@...r.kernel.org
Cc:     intel-wired-lan@...ts.osuosl.org
Subject: [PATCH ethtool 4/4] igc: Parse ETQF registers

This patch adds support for parsing the EType Queue Filter (ETQF)
registers fields.

Signed-off-by: Andre Guedes <andre.guedes@...el.com>
---
 igc.c | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

diff --git a/igc.c b/igc.c
index 6a2e06d..9c0a750 100644
--- a/igc.c
+++ b/igc.c
@@ -59,6 +59,14 @@
 #define VLANPQF_VP7QSEL				0x30000000
 #define VLANPQF_VP7PBSEL			0x40000000
 #define VLANPQF_VLANP7V				0x80000000
+#define ETQF_ETYPE				0x0000FFFF
+#define ETQF_QUEUE				0x00070000
+#define ETQF_ETYPE_LEN				0x01F00000
+#define ETQF_ETYPE_LEN_EN			0x02000000
+#define ETQF_FILTER_EN				0x04000000
+#define ETQF_IMMEDIATE_INTR			0x20000000
+#define ETQF_1588_TIMESTAMP			0x40000000
+#define ETQF_QUEUE_EN				0x80000000
 
 #define RAH_QSEL_SHIFT				18
 #define VLANPQF_VP1QSEL_SHIFT			4
@@ -68,6 +76,8 @@
 #define VLANPQF_VP5QSEL_SHIFT			20
 #define VLANPQF_VP6QSEL_SHIFT			24
 #define VLANPQF_VP7QSEL_SHIFT			28
+#define ETQF_QUEUE_SHIFT			16
+#define ETQF_ETYPE_LEN_SHIFT			20
 
 static const char *bit_to_boolean(u32 val)
 {
@@ -245,5 +255,29 @@ int igc_dump_regs(struct ethtool_drvinfo *info, struct ethtool_regs *regs)
 	       bit_to_prio(reg & VLANPQF_VP7PBSEL),
 	       bit_to_boolean(reg & VLANPQF_VLANP7V));
 
+	offset = 205;
+
+	for (i = 0; i < 8; i++) {
+		reg = regs_buff[offset + i];
+		printf("%04d: ETQF (EType Queue Filter %d)                 \n"
+		       "    EType:                                     %04X\n"
+		       "    EType Length:                              %d\n"
+		       "    EType Length Enable:                       %s\n"
+		       "    Queue:                                     %d\n"
+		       "    Queue Enable:                              %s\n"
+		       "    Immediate Interrupt:                       %s\n"
+		       "    1588 Time Stamp:                           %s\n"
+		       "    Filter Enable:                             %s\n",
+		       offset + i, i,
+		       reg & ETQF_ETYPE,
+		       (reg & ETQF_ETYPE_LEN) >> ETQF_ETYPE_LEN_SHIFT,
+		       bit_to_boolean(reg & ETQF_ETYPE_LEN_EN),
+		       (reg & ETQF_QUEUE) >> ETQF_QUEUE_SHIFT,
+		       bit_to_boolean(reg & ETQF_QUEUE_EN),
+		       bit_to_enable(reg & ETQF_IMMEDIATE_INTR),
+		       bit_to_enable(reg & ETQF_1588_TIMESTAMP),
+		       bit_to_boolean(reg & ETQF_FILTER_EN));
+	}
+
 	return 0;
 }
-- 
2.26.2