# HG changeset patch
# Parent 7b528d8da5c9d49acd205ae06a2fe6f0685bd0af
diff -r 7b528d8da5c9 -r b320ab35d09f sys/dev/cxgbe/adapter.h
--- a/sys/dev/cxgbe/adapter.h	Tue Oct 28 23:14:21 2014 -0700
+++ b/sys/dev/cxgbe/adapter.h	Wed Oct 29 15:02:42 2014 -0700
@@ -121,6 +121,21 @@ t4_bus_space_write_8(bus_space_tag_t tag
 }
 #endif
 
+#define CH_MSG(sc, fmt, ...) device_printf(sc->dev, fmt, ##__VA_ARGS__);
+#define CH_DUMP_MBOX(sc, mbox, data_reg, size) \
+    device_printf(sc->dev, \
+	       "mbox %u: %016llx %016llx %016llx %016llx %016llx %016llx %016llx %016llx\n", (mbox), \
+	       (unsigned long long)t4_read_reg64(adap, data_reg), \
+	       (unsigned long long)t4_read_reg64(adap, data_reg + 8), \
+	       (unsigned long long)t4_read_reg64(adap, data_reg + 16), \
+	       (unsigned long long)t4_read_reg64(adap, data_reg + 24), \
+	       (unsigned long long)t4_read_reg64(adap, data_reg + 32), \
+	       (unsigned long long)t4_read_reg64(adap, data_reg + 40), \
+	       (unsigned long long)t4_read_reg64(adap, data_reg + 48), \
+	       (unsigned long long)t4_read_reg64(adap, data_reg + 56));
+
+/* Additional NETIF_MSG_* categories */
+
 struct adapter;
 typedef struct adapter adapter_t;
 
diff -r 7b528d8da5c9 -r b320ab35d09f sys/dev/cxgbe/common/t4_hw.c
--- a/sys/dev/cxgbe/common/t4_hw.c	Tue Oct 28 23:14:21 2014 -0700
+++ b/sys/dev/cxgbe/common/t4_hw.c	Wed Oct 29 15:02:42 2014 -0700
@@ -262,6 +262,8 @@ int t4_wr_mbox_meat(struct adapter *adap
 	for (i = 0; i < size; i += 8, p++)
 		t4_write_reg64(adap, data_reg + i, be64_to_cpu(*p));
 
+	CH_DUMP_MBOX(adap, mbox, data_reg, size / 8);
+
 	t4_write_reg(adap, ctl_reg, F_MBMSGVALID | V_MBOWNER(X_MBOWNER_FW));
 	t4_read_reg(adap, ctl_reg);          /* flush write */
 
@@ -287,6 +289,11 @@ int t4_wr_mbox_meat(struct adapter *adap
 				continue;
 			}
 
+			CH_DUMP_MBOX(adap, mbox, data_reg, size / 8);
+			CH_MSG(adap,
+			    "command completed in %d ms (%ssleeping)\n",
+			    i + ms, sleep_ok ? "" : "non-");
+
 			res = t4_read_reg64(adap, data_reg);
 			if (G_FW_CMD_OP(res >> 32) == FW_DEBUG_CMD) {
 				fw_asrt(adap, data_reg);