summaryrefslogtreecommitdiffstats
path: root/drivers/net/enic/vnic_intr.c
diff options
context:
space:
mode:
authorIngo Molnar <mingo@elte.hu>2008-10-12 12:35:23 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-12 12:37:32 +0200
commit365d46dc9be9b3c833990a06f3994b1987eda578 (patch)
tree9397d1304144a288411f2118707f44ff5e862fa6 /drivers/net/enic/vnic_intr.c
parent5dc64a3442b98eaa0e3730c35fcf00cf962a93e7 (diff)
parentfd048088306656824958e7783ffcee27e241b361 (diff)
Merge branch 'linus' into x86/xen
Conflicts: arch/x86/kernel/cpu/common.c arch/x86/kernel/process_64.c arch/x86/xen/enlighten.c
Diffstat (limited to 'drivers/net/enic/vnic_intr.c')
-rw-r--r--drivers/net/enic/vnic_intr.c62
1 files changed, 62 insertions, 0 deletions
diff --git a/drivers/net/enic/vnic_intr.c b/drivers/net/enic/vnic_intr.c
new file mode 100644
index 00000000000..ddc38f8f465
--- /dev/null
+++ b/drivers/net/enic/vnic_intr.c
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2008 Cisco Systems, Inc. All rights reserved.
+ * Copyright 2007 Nuova Systems, Inc. All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/delay.h>
+
+#include "vnic_dev.h"
+#include "vnic_intr.h"
+
+void vnic_intr_free(struct vnic_intr *intr)
+{
+ intr->ctrl = NULL;
+}
+
+int vnic_intr_alloc(struct vnic_dev *vdev, struct vnic_intr *intr,
+ unsigned int index)
+{
+ intr->index = index;
+ intr->vdev = vdev;
+
+ intr->ctrl = vnic_dev_get_res(vdev, RES_TYPE_INTR_CTRL, index);
+ if (!intr->ctrl) {
+ printk(KERN_ERR "Failed to hook INTR[%d].ctrl resource\n",
+ index);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+void vnic_intr_init(struct vnic_intr *intr, unsigned int coalescing_timer,
+ unsigned int coalescing_type, unsigned int mask_on_assertion)
+{
+ iowrite32(coalescing_timer, &intr->ctrl->coalescing_timer);
+ iowrite32(coalescing_type, &intr->ctrl->coalescing_type);
+ iowrite32(mask_on_assertion, &intr->ctrl->mask_on_assertion);
+ iowrite32(0, &intr->ctrl->int_credits);
+}
+
+void vnic_intr_clean(struct vnic_intr *intr)
+{
+ iowrite32(0, &intr->ctrl->int_credits);
+}