Release 4.7 drivers/scsi/fnic/vnic_intr.h
/*
* 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.
*/
#ifndef _VNIC_INTR_H_
#define _VNIC_INTR_H_
#include <linux/pci.h>
#include "vnic_dev.h"
/*
* These defines avoid symbol clash between fnic and enic (Cisco 10G Eth
* Driver) when both are built with CONFIG options =y
*/
#define vnic_intr_unmask fnic_intr_unmask
#define vnic_intr_mask fnic_intr_mask
#define vnic_intr_return_credits fnic_intr_return_credits
#define vnic_intr_credits fnic_intr_credits
#define vnic_intr_return_all_credits fnic_intr_return_all_credits
#define vnic_intr_legacy_pba fnic_intr_legacy_pba
#define vnic_intr_free fnic_intr_free
#define vnic_intr_alloc fnic_intr_alloc
#define vnic_intr_init fnic_intr_init
#define vnic_intr_clean fnic_intr_clean
#define VNIC_INTR_TIMER_MAX 0xffff
#define VNIC_INTR_TIMER_TYPE_ABS 0
#define VNIC_INTR_TIMER_TYPE_QUIET 1
/* Interrupt control */
struct vnic_intr_ctrl {
u32 coalescing_timer; /* 0x00 */
u32 pad0;
u32 coalescing_value; /* 0x08 */
u32 pad1;
u32 coalescing_type; /* 0x10 */
u32 pad2;
u32 mask_on_assertion; /* 0x18 */
u32 pad3;
u32 mask; /* 0x20 */
u32 pad4;
u32 int_credits; /* 0x28 */
u32 pad5;
u32 int_credit_return; /* 0x30 */
u32 pad6;
};
struct vnic_intr {
unsigned int index;
struct vnic_dev *vdev;
struct vnic_intr_ctrl __iomem *ctrl; /* memory-mapped */
};
static inline void vnic_intr_unmask(struct vnic_intr *intr)
{
iowrite32(0, &intr->ctrl->mask);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| abhijeet joglekar | abhijeet joglekar | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
static inline void vnic_intr_mask(struct vnic_intr *intr)
{
iowrite32(1, &intr->ctrl->mask);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| abhijeet joglekar | abhijeet joglekar | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
static inline void vnic_intr_return_credits(struct vnic_intr *intr,
unsigned int credits, int unmask, int reset_timer)
{
#define VNIC_INTR_UNMASK_SHIFT 16
#define VNIC_INTR_RESET_TIMER_SHIFT 17
u32 int_credit_return = (credits & 0xffff) |
(unmask ? (1 << VNIC_INTR_UNMASK_SHIFT) : 0) |
(reset_timer ? (1 << VNIC_INTR_RESET_TIMER_SHIFT) : 0);
iowrite32(int_credit_return, &intr->ctrl->int_credit_return);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| abhijeet joglekar | abhijeet joglekar | 75 | 100.00% | 1 | 100.00% |
| Total | 75 | 100.00% | 1 | 100.00% |
static inline unsigned int vnic_intr_credits(struct vnic_intr *intr)
{
return ioread32(&intr->ctrl->int_credits);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| abhijeet joglekar | abhijeet joglekar | 24 | 100.00% | 1 | 100.00% |
| Total | 24 | 100.00% | 1 | 100.00% |
static inline void vnic_intr_return_all_credits(struct vnic_intr *intr)
{
unsigned int credits = vnic_intr_credits(intr);
int unmask = 1;
int reset_timer = 1;
vnic_intr_return_credits(intr, credits, unmask, reset_timer);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| abhijeet joglekar | abhijeet joglekar | 42 | 100.00% | 1 | 100.00% |
| Total | 42 | 100.00% | 1 | 100.00% |
static inline u32 vnic_intr_legacy_pba(u32 __iomem *legacy_pba)
{
/* read PBA without clearing */
return ioread32(legacy_pba);
}
Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| abhijeet joglekar | abhijeet joglekar | 19 | 100.00% | 1 | 100.00% |
| Total | 19 | 100.00% | 1 | 100.00% |
void vnic_intr_free(struct vnic_intr *intr);
int vnic_intr_alloc(struct vnic_dev *vdev, struct vnic_intr *intr,
unsigned int index);
void vnic_intr_init(struct vnic_intr *intr, unsigned int coalescing_timer,
unsigned int coalescing_type, unsigned int mask_on_assertion);
void vnic_intr_clean(struct vnic_intr *intr);
#endif /* _VNIC_INTR_H_ */
Overall Contributors
| Person | Tokens | Prop | Commits | CommitProp |
| abhijeet joglekar | abhijeet joglekar | 410 | 100.00% | 1 | 100.00% |
| Total | 410 | 100.00% | 1 | 100.00% |
Information contained on this website is for historical information purposes only and does not indicate or represent copyright ownership.