projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 01f2e4ea SF |
1 | /* |
| 2 | * Copyright 2008 Cisco Systems, Inc. All rights reserved. | |
| 3 | * Copyright 2007 Nuova Systems, Inc. All rights reserved. | |
| 4 | * | |
| 5 | * This program is free software; you may redistribute it and/or modify | |
| 6 | * it under the terms of the GNU General Public License as published by | |
| 7 | * the Free Software Foundation; version 2 of the License. | |
| 8 | * | |
| 9 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | |
| 10 | * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | |
| 11 | * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
| 12 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS | |
| 13 | * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN | |
| 14 | * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN | |
| 15 | * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE | |
| 16 | * SOFTWARE. | |
| 17 | * | |
| 18 | */ | |
| 19 | ||
| 20 | #include <linux/kernel.h> | |
| 21 | #include <linux/errno.h> | |
| 22 | #include <linux/types.h> | |
| 23 | #include <linux/pci.h> | |
| 24 | #include <linux/delay.h> | |
| 25 | ||
| 26 | #include "vnic_dev.h" | |
| 27 | #include "vnic_intr.h" | |
| 28 | ||
| 29 | void vnic_intr_free(struct vnic_intr *intr) | |
| 30 | { | |
| 31 | intr->ctrl = NULL; | |
| 32 | } | |
| 33 | ||
| 34 | int vnic_intr_alloc(struct vnic_dev *vdev, struct vnic_intr *intr, | |
| 35 | unsigned int index) | |
| 36 | { | |
| 37 | intr->index = index; | |
| 38 | intr->vdev = vdev; | |
| 39 | ||
| 40 | intr->ctrl = vnic_dev_get_res(vdev, RES_TYPE_INTR_CTRL, index); | |
| 41 | if (!intr->ctrl) { | |
| 42 | printk(KERN_ERR "Failed to hook INTR[%d].ctrl resource\n", | |
| 43 | index); | |
| 44 | return -EINVAL; | |
| 45 | } | |
| 46 | ||
| 47 | return 0; | |
| 48 | } | |
| 49 | ||
| 50 | void vnic_intr_init(struct vnic_intr *intr, unsigned int coalescing_timer, | |
| 51 | unsigned int coalescing_type, unsigned int mask_on_assertion) | |
| 52 | { | |
| 7c844599 | 53 | vnic_intr_coalescing_timer_set(intr, coalescing_timer); |
| 01f2e4ea SF |
54 | iowrite32(coalescing_type, &intr->ctrl->coalescing_type); |
| 55 | iowrite32(mask_on_assertion, &intr->ctrl->mask_on_assertion); | |
| 56 | iowrite32(0, &intr->ctrl->int_credits); | |
| 57 | } | |
| 58 | ||
| 7c844599 SF |
59 | void vnic_intr_coalescing_timer_set(struct vnic_intr *intr, |
| 60 | unsigned int coalescing_timer) | |
| 61 | { | |
| 62 | iowrite32(coalescing_timer, &intr->ctrl->coalescing_timer); | |
| 63 | } | |
| 64 | ||
| 01f2e4ea SF |
65 | void vnic_intr_clean(struct vnic_intr *intr) |
| 66 | { | |
| 67 | iowrite32(0, &intr->ctrl->int_credits); | |
| 68 | } | |
| d73149f5 SF |
69 | |
| 70 | void vnic_intr_raise(struct vnic_intr *intr) | |
| 71 | { | |
| 72 | vnic_dev_raise_intr(intr->vdev, (u16)intr->index); | |
| 73 | } |