mirror of
https://github.com/torvalds/linux.git
synced 2024-12-26 21:02:19 +00:00
5df6d737dd
fnic is a driver for the Cisco PCI-Express FCoE HBA Signed-off-by: Abhijeet Joglekar <abjoglek@cisco.com> Signed-off-by: Joe Eykholt <jeykholt@cisco.com> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
68 lines
2.2 KiB
C
68 lines
2.2 KiB
C
/*
|
|
* 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 _FNIC_IO_H_
|
|
#define _FNIC_IO_H_
|
|
|
|
#include <scsi/fc/fc_fcp.h>
|
|
|
|
#define FNIC_DFLT_SG_DESC_CNT 32
|
|
#define FNIC_MAX_SG_DESC_CNT 1024 /* Maximum descriptors per sgl */
|
|
#define FNIC_SG_DESC_ALIGN 16 /* Descriptor address alignment */
|
|
|
|
struct host_sg_desc {
|
|
__le64 addr;
|
|
__le32 len;
|
|
u32 _resvd;
|
|
};
|
|
|
|
struct fnic_dflt_sgl_list {
|
|
struct host_sg_desc sg_desc[FNIC_DFLT_SG_DESC_CNT];
|
|
};
|
|
|
|
struct fnic_sgl_list {
|
|
struct host_sg_desc sg_desc[FNIC_MAX_SG_DESC_CNT];
|
|
};
|
|
|
|
enum fnic_sgl_list_type {
|
|
FNIC_SGL_CACHE_DFLT = 0, /* cache with default size sgl */
|
|
FNIC_SGL_CACHE_MAX, /* cache with max size sgl */
|
|
FNIC_SGL_NUM_CACHES /* number of sgl caches */
|
|
};
|
|
|
|
enum fnic_ioreq_state {
|
|
FNIC_IOREQ_CMD_PENDING = 0,
|
|
FNIC_IOREQ_ABTS_PENDING,
|
|
FNIC_IOREQ_ABTS_COMPLETE,
|
|
FNIC_IOREQ_CMD_COMPLETE,
|
|
};
|
|
|
|
struct fnic_io_req {
|
|
struct host_sg_desc *sgl_list; /* sgl list */
|
|
void *sgl_list_alloc; /* sgl list address used for free */
|
|
dma_addr_t sense_buf_pa; /* dma address for sense buffer*/
|
|
dma_addr_t sgl_list_pa; /* dma address for sgl list */
|
|
u16 sgl_cnt;
|
|
u8 sgl_type; /* device DMA descriptor list type */
|
|
u8 io_completed:1; /* set to 1 when fw completes IO */
|
|
u32 port_id; /* remote port DID */
|
|
struct completion *abts_done; /* completion for abts */
|
|
struct completion *dr_done; /* completion for device reset */
|
|
};
|
|
|
|
#endif /* _FNIC_IO_H_ */
|