mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 16:54:20 +08:00
75c85a0bc1
commit 4546548789 ("kfifo: move struct
kfifo in place") caused a compile failure in ibmvscsitgt.c because it
changed a pointer to kfifo in the libsrp.h structure to a direct
inclusion without including <linux/kfifo.h>.
The fix is simple, just add the include, but how did this happen? This
change, introduced at -rc2, hardly looks like a bug fix, and it clearly
didn't go through linux-next, which would have picked up this compile
failure (it only occurs on ppc because of the ibm virtual scsi target).
[ Apparently all of -mm wasn't in linux-next.. ]
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
79 lines
1.5 KiB
C
79 lines
1.5 KiB
C
#ifndef __LIBSRP_H__
|
|
#define __LIBSRP_H__
|
|
|
|
#include <linux/list.h>
|
|
#include <linux/kfifo.h>
|
|
#include <scsi/scsi_cmnd.h>
|
|
#include <scsi/scsi_host.h>
|
|
#include <scsi/srp.h>
|
|
|
|
enum iue_flags {
|
|
V_DIOVER,
|
|
V_WRITE,
|
|
V_LINKED,
|
|
V_FLYING,
|
|
};
|
|
|
|
struct srp_buf {
|
|
dma_addr_t dma;
|
|
void *buf;
|
|
};
|
|
|
|
struct srp_queue {
|
|
void *pool;
|
|
void *items;
|
|
struct kfifo queue;
|
|
spinlock_t lock;
|
|
};
|
|
|
|
struct srp_target {
|
|
struct Scsi_Host *shost;
|
|
struct device *dev;
|
|
|
|
spinlock_t lock;
|
|
struct list_head cmd_queue;
|
|
|
|
size_t srp_iu_size;
|
|
struct srp_queue iu_queue;
|
|
size_t rx_ring_size;
|
|
struct srp_buf **rx_ring;
|
|
|
|
void *ldata;
|
|
};
|
|
|
|
struct iu_entry {
|
|
struct srp_target *target;
|
|
|
|
struct list_head ilist;
|
|
dma_addr_t remote_token;
|
|
unsigned long flags;
|
|
|
|
struct srp_buf *sbuf;
|
|
};
|
|
|
|
typedef int (srp_rdma_t)(struct scsi_cmnd *, struct scatterlist *, int,
|
|
struct srp_direct_buf *, int,
|
|
enum dma_data_direction, unsigned int);
|
|
extern int srp_target_alloc(struct srp_target *, struct device *, size_t, size_t);
|
|
extern void srp_target_free(struct srp_target *);
|
|
|
|
extern struct iu_entry *srp_iu_get(struct srp_target *);
|
|
extern void srp_iu_put(struct iu_entry *);
|
|
|
|
extern int srp_cmd_queue(struct Scsi_Host *, struct srp_cmd *, void *, u64, u64);
|
|
extern int srp_transfer_data(struct scsi_cmnd *, struct srp_cmd *,
|
|
srp_rdma_t, int, int);
|
|
|
|
|
|
static inline struct srp_target *host_to_srp_target(struct Scsi_Host *host)
|
|
{
|
|
return (struct srp_target *) host->hostdata;
|
|
}
|
|
|
|
static inline int srp_cmd_direction(struct srp_cmd *cmd)
|
|
{
|
|
return (cmd->buf_fmt >> 4) ? DMA_TO_DEVICE : DMA_FROM_DEVICE;
|
|
}
|
|
|
|
#endif
|