From 2c3c1048746a4622d8c89a29670120dc8fab93c4 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 7 Apr 2024 20:49:45 +0200 Subject: Adding upstream version 6.1.76. Signed-off-by: Daniel Baumann --- drivers/net/ethernet/cisco/enic/vnic_intr.c | 57 +++++++++++++++++++++++++++++ 1 file changed, 57 insertions(+) create mode 100644 drivers/net/ethernet/cisco/enic/vnic_intr.c (limited to 'drivers/net/ethernet/cisco/enic/vnic_intr.c') diff --git a/drivers/net/ethernet/cisco/enic/vnic_intr.c b/drivers/net/ethernet/cisco/enic/vnic_intr.c new file mode 100644 index 000000000..25319f072 --- /dev/null +++ b/drivers/net/ethernet/cisco/enic/vnic_intr.c @@ -0,0 +1,57 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright 2008-2010 Cisco Systems, Inc. All rights reserved. + * Copyright 2007 Nuova Systems, Inc. All rights reserved. + */ + +#include +#include +#include +#include +#include + +#include "vnic_dev.h" +#include "vnic_intr.h" +#include "enic.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) { + vdev_err(vdev, "Failed to hook INTR[%d].ctrl resource\n", + index); + return -EINVAL; + } + + return 0; +} + +void vnic_intr_init(struct vnic_intr *intr, u32 coalescing_timer, + unsigned int coalescing_type, unsigned int mask_on_assertion) +{ + vnic_intr_coalescing_timer_set(intr, 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_coalescing_timer_set(struct vnic_intr *intr, + u32 coalescing_timer) +{ + iowrite32(vnic_dev_intr_coal_timer_usec_to_hw(intr->vdev, + coalescing_timer), &intr->ctrl->coalescing_timer); +} + +void vnic_intr_clean(struct vnic_intr *intr) +{ + iowrite32(0, &intr->ctrl->int_credits); +} -- cgit v1.2.3