Add optional support to mxge for MSI-X interrupts and multiple receive

queues (which we call slices).  The NIC will steer traffic into up to
hw.mxge.max_slices different receive rings based on a configurable
hash type (hw.mxge.rss_hash_type).

Currently the driver defaults to using a single slice, so the default
behavior is unchanged.  Also, transmit from non-zero slices is
disabled currently.

1 files changed, 47 insertions, 0 deletions

diff --git a/sys/dev/mxge/mxge_rss_ethp_z8e.c b/sys/dev/mxge/mxge_rss_ethp_z8e.c
new file mode 100644
index 0000000..ca7be0e
--- /dev/null
+++ b/sys/dev/mxge/mxge_rss_ethp_z8e.c
@@ -0,0 +1,47 @@
+/*
+ * from: FreeBSD: src/sys/tools/fw_stub.awk,v 1.6 2007/03/02 11:42:53 flz
+ */
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+#include <sys/param.h>
+#include <sys/errno.h>
+#include <sys/kernel.h>
+#include <sys/module.h>
+#include <sys/linker.h>
+#include <sys/firmware.h>
+#include <sys/systm.h>
+#include <dev/mxge/rss_ethp_z8e.h>
+
+static int
+mxge_rss_ethp_z8e_fw_modevent(module_t mod, int type, void *unused)
+{
+	const struct firmware *fp, *parent;
+	int error;
+	switch (type) {
+	case MOD_LOAD:
+
+		fp = firmware_register("mxge_rss_ethp_z8e", rss_ethp_z8e, 
+				       (size_t)rss_ethp_z8e_length,
+				       rss_ethp_z8e_uncompressed_length, NULL);
+		if (fp == NULL)
+			goto fail_0;
+		parent = fp;
+		return (0);
+	fail_0:
+		return (ENXIO);
+	case MOD_UNLOAD:
+		error = firmware_unregister("mxge_rss_ethp_z8e");
+		return (error);
+	}
+	return (EINVAL);
+}
+
+static moduledata_t mxge_rss_ethp_z8e_fw_mod = {
+        "mxge_rss_ethp_z8e_fw",
+        mxge_rss_ethp_z8e_fw_modevent,
+        0
+};
+DECLARE_MODULE(mxge_rss_ethp_z8e_fw, mxge_rss_ethp_z8e_fw_mod, SI_SUB_DRIVERS, SI_ORDER_FIRST);
+MODULE_VERSION(mxge_rss_ethp_z8e_fw, 1);
+MODULE_DEPEND(mxge_rss_ethp_z8e_fw, firmware, 1, 1, 1);
+