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| author | Matthew R. Ochs <mrochs@linux.vnet.ibm.com> | 2015-08-14 02:47:43 (GMT) |
|---|---|---|
| committer | James Bottomley <JBottomley@Odin.com> | 2015-08-27 01:04:37 (GMT) |
| commit | 65be2c79acc3aa0f9c0e8d4871f5a451d854465a (patch) | |
| tree | 44a0bcdad372238cdfcfbdeb2f47875c4f575509 /drivers/scsi/cxlflash/common.h | |
| parent | 5cdac81a870f3bb65c50d3f5566a86fb086118d2 (diff) | |
| download | linux-65be2c79acc3aa0f9c0e8d4871f5a451d854465a.tar.xz | |
cxlflash: Superpipe support
Add superpipe supporting infrastructure to device driver for the IBM CXL
Flash adapter. This patch allows userspace applications to take advantage
of the accelerated I/O features that this adapter provides and bypass the
traditional filesystem stack.
Signed-off-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Manoj N. Kumar <manoj@linux.vnet.ibm.com>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Reviewed-by: Wen Xiong <wenxiong@linux.vnet.ibm.com>
Reviewed-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <JBottomley@Odin.com>
Diffstat (limited to 'drivers/scsi/cxlflash/common.h')
| -rw-r--r-- | drivers/scsi/cxlflash/common.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/scsi/cxlflash/common.h b/drivers/scsi/cxlflash/common.h index ffdbc57..d3e54e6 100644 --- a/drivers/scsi/cxlflash/common.h +++ b/drivers/scsi/cxlflash/common.h @@ -107,6 +107,17 @@ struct cxlflash_cfg { struct pci_pool *cxlflash_cmd_pool; struct pci_dev *parent_dev; + atomic_t recovery_threads; + struct mutex ctx_recovery_mutex; + struct mutex ctx_tbl_list_mutex; + struct ctx_info *ctx_tbl[MAX_CONTEXT]; + struct list_head ctx_err_recovery; /* contexts w/ recovery pending */ + struct file_operations cxl_fops; + + atomic_t num_user_contexts; + + struct list_head lluns; /* list of llun_info structs */ + wait_queue_head_t tmf_waitq; bool tmf_active; wait_queue_head_t limbo_waitq; @@ -182,4 +193,12 @@ int cxlflash_afu_reset(struct cxlflash_cfg *); struct afu_cmd *cxlflash_cmd_checkout(struct afu *); void cxlflash_cmd_checkin(struct afu_cmd *); int cxlflash_afu_sync(struct afu *, ctx_hndl_t, res_hndl_t, u8); +void cxlflash_list_init(void); +void cxlflash_term_global_luns(void); +void cxlflash_free_errpage(void); +int cxlflash_ioctl(struct scsi_device *, int, void __user *); +void cxlflash_stop_term_user_contexts(struct cxlflash_cfg *); +int cxlflash_mark_contexts_error(struct cxlflash_cfg *); +void cxlflash_term_local_luns(struct cxlflash_cfg *); + #endif /* ifndef _CXLFLASH_COMMON_H */ |