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Index: sys/dev/aacraid/aacraid.c
===================================================================
--- sys/dev/aacraid/aacraid.c
+++ sys/dev/aacraid/aacraid.c
@@ -228,6 +228,22 @@
SYSCTL_NODE(_hw, OID_AUTO, aacraid, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
"AACRAID driver parameters");
+static void
+aacraid_setup_sysctl(struct aac_softc *sc)
+{
+ struct sysctl_ctx_list *sysctl_ctx;
+ struct sysctl_oid *sysctl_tree;
+
+ sysctl_ctx = device_get_sysctl_ctx(sc->aac_dev);
+ sysctl_tree = device_get_sysctl_tree(sc->aac_dev);
+ if (sysctl_ctx == NULL || sysctl_tree == NULL)
+ return;
+
+ SYSCTL_ADD_ULONG(sysctl_ctx, SYSCTL_CHILDREN(sysctl_tree),
+ OID_AUTO, "dma_load_fail", CTLFLAG_RD,
+ &sc->dma_load_fail, "DMA load buffer failures");
+}
+
/*
* Device Interface
*/
@@ -339,6 +355,8 @@
/* poke the bus to actually attach the child devices */
bus_generic_attach(sc->aac_dev);
+ aacraid_setup_sysctl(sc);
+
/* mark the controller up */
sc->aac_state &= ~AAC_STATE_SUSPEND;
@@ -1298,6 +1316,18 @@
fwprintf(sc, HBA_FLAGS_DBG_FUNCTION_ENTRY_B, "nseg %d", nseg);
mtx_assert(&sc->aac_io_lock, MA_OWNED);
+ if (error != 0) {
+ if (sc->dma_load_fail == 0)
+ device_printf(sc->aac_dev,
+ "ERROR: failed to load buffer to DMA area, error %d\n",
+ error);
+ sc->dma_load_fail++;
+ /*
+ * Let the command run (and fail) to be able to clean up and
+ * wake up waiters in the interrupt handler.
+ */
+ }
+
if ((sc->flags & AAC_FLAGS_SYNC_MODE) && sc->aac_sync_cm)
return;
Index: sys/dev/aacraid/aacraid_var.h
===================================================================
--- sys/dev/aacraid/aacraid_var.h
+++ sys/dev/aacraid/aacraid_var.h
@@ -468,6 +468,8 @@
u_int32_t DebugHeaderSize; /* Size of debug header */
u_int32_t FwDebugFlags; /* FW Debug Flags */
u_int32_t FwDebugBufferSize; /* FW Debug Buffer size */
+
+ unsigned long dma_load_fail; /* DMA load failure counter */
};
/*

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