Module Name: src
Committed By: msaitoh
Date: Wed May 30 09:17:17 UTC 2018
Modified Files:
src/sys/dev/pci/ixgbe: ixgbe.c
Log Message:
Add hw.ixgN.debug sysctl. "sysctl -w hw.ixgN.debug=1" dumps some registers
to console.
To generate a diff of this commit:
cvs rdiff -u -r1.157 -r1.158 src/sys/dev/pci/ixgbe/ixgbe.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/dev/pci/ixgbe/ixgbe.c
diff -u src/sys/dev/pci/ixgbe/ixgbe.c:1.157 src/sys/dev/pci/ixgbe/ixgbe.c:1.158
--- src/sys/dev/pci/ixgbe/ixgbe.c:1.157 Wed May 30 08:35:26 2018
+++ src/sys/dev/pci/ixgbe/ixgbe.c Wed May 30 09:17:17 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: ixgbe.c,v 1.157 2018/05/30 08:35:26 msaitoh Exp $ */
+/* $NetBSD: ixgbe.c,v 1.158 2018/05/30 09:17:17 msaitoh Exp $ */
/******************************************************************************
@@ -242,6 +242,7 @@ static int ixgbe_sysctl_rdt_handler
static int ixgbe_sysctl_tdt_handler(SYSCTLFN_PROTO);
static int ixgbe_sysctl_tdh_handler(SYSCTLFN_PROTO);
static int ixgbe_sysctl_eee_state(SYSCTLFN_PROTO);
+static int ixgbe_sysctl_debug(SYSCTLFN_PROTO);
static int ixgbe_sysctl_wol_enable(SYSCTLFN_PROTO);
static int ixgbe_sysctl_wufc(SYSCTLFN_PROTO);
@@ -3213,6 +3214,12 @@ ixgbe_add_device_sysctls(struct adapter
}
if (sysctl_createv(log, 0, &rnode, &cnode,
+ CTLFLAG_READWRITE, CTLTYPE_INT,
+ "debug", SYSCTL_DESCR("Debug Info"),
+ ixgbe_sysctl_debug, 0, (void *)adapter, 0, CTL_CREATE, CTL_EOL) != 0)
+ aprint_error_dev(dev, "could not create sysctl\n");
+
+ if (sysctl_createv(log, 0, &rnode, &cnode,
CTLFLAG_READONLY, CTLTYPE_INT,
"num_rx_desc", SYSCTL_DESCR("Number of rx descriptors"),
NULL, 0, &adapter->num_rx_desc, 0, CTL_CREATE, CTL_EOL) != 0)
@@ -5696,6 +5703,115 @@ ixgbe_sysctl_eee_state(SYSCTLFN_ARGS)
return (error);
} /* ixgbe_sysctl_eee_state */
+#define PRINTQS(adapter, regname) \
+ do { \
+ struct ixgbe_hw *_hw = &(adapter)->hw; \
+ int _i; \
+ \
+ printf("%s: %s", device_xname((adapter)->dev), #regname); \
+ for (_i = 0; _i < (adapter)->num_queues; _i++) { \
+ printf((_i == 0) ? "\t" : " "); \
+ printf("%08x", IXGBE_READ_REG(_hw, \
+ IXGBE_##regname(_i))); \
+ } \
+ printf("\n"); \
+ } while (0)
+
+/************************************************************************
+ * ixgbe_print_debug_info
+ *
+ * Called only when em_display_debug_stats is enabled.
+ * Provides a way to take a look at important statistics
+ * maintained by the driver and hardware.
+ ************************************************************************/
+static void
+ixgbe_print_debug_info(struct adapter *adapter)
+{
+ device_t dev = adapter->dev;
+ struct ixgbe_hw *hw = &adapter->hw;
+ int table_size;
+ int i;
+
+ switch (adapter->hw.mac.type) {
+ case ixgbe_mac_X550:
+ case ixgbe_mac_X550EM_x:
+ case ixgbe_mac_X550EM_a:
+ table_size = 128;
+ break;
+ default:
+ table_size = 32;
+ break;
+ }
+
+ device_printf(dev, "[E]RETA:\n");
+ for (i = 0; i < table_size; i++) {
+ if (i < 32)
+ printf("%02x: %08x\n", i, IXGBE_READ_REG(hw,
+ IXGBE_RETA(i)));
+ else
+ printf("%02x: %08x\n", i, IXGBE_READ_REG(hw,
+ IXGBE_ERETA(i - 32)));
+ }
+
+ device_printf(dev, "queue:");
+ for (i = 0; i < adapter->num_queues; i++) {
+ printf((i == 0) ? "\t" : " ");
+ printf("%8d", i);
+ }
+ printf("\n");
+ PRINTQS(adapter, RDBAL);
+ PRINTQS(adapter, RDBAH);
+ PRINTQS(adapter, RDLEN);
+ PRINTQS(adapter, SRRCTL);
+ PRINTQS(adapter, RDH);
+ PRINTQS(adapter, RDT);
+ PRINTQS(adapter, RXDCTL);
+
+ device_printf(dev, "RQSMR:");
+ for (i = 0; i < adapter->num_queues / 4; i++) {
+ printf((i == 0) ? "\t" : " ");
+ printf("%08x", IXGBE_READ_REG(hw, IXGBE_RQSMR(i)));
+ }
+ printf("\n");
+
+ device_printf(dev, "disabled_count:");
+ for (i = 0; i < adapter->num_queues; i++) {
+ printf((i == 0) ? "\t" : " ");
+ printf("%8d", adapter->queues[i].disabled_count);
+ }
+ printf("\n");
+
+ device_printf(dev, "EIMS:\t%08x\n", IXGBE_READ_REG(hw, IXGBE_EIMS));
+ if (hw->mac.type != ixgbe_mac_82598EB) {
+ device_printf(dev, "EIMS_EX(0):\t%08x\n",
+ IXGBE_READ_REG(hw, IXGBE_EIMS_EX(0)));
+ device_printf(dev, "EIMS_EX(1):\t%08x\n",
+ IXGBE_READ_REG(hw, IXGBE_EIMS_EX(1)));
+ }
+} /* ixgbe_print_debug_info */
+
+/************************************************************************
+ * ixgbe_sysctl_debug
+ ************************************************************************/
+static int
+ixgbe_sysctl_debug(SYSCTLFN_ARGS)
+{
+ struct sysctlnode node = *rnode;
+ struct adapter *adapter = (struct adapter *)node.sysctl_data;
+ int error, result = 0;
+
+ node.sysctl_data = &result;
+ error = sysctl_lookup(SYSCTLFN_CALL(&node));
+
+ if (error || newp == NULL)
+ return error;
+
+ if (result == 1)
+ ixgbe_print_debug_info(adapter);
+
+ return 0;
+} /* ixgbe_sysctl_debug */
+
/************************************************************************
* ixgbe_init_device_features
************************************************************************/
