diff options
Diffstat (limited to 'net/rds/ib_mr.h')
| -rw-r--r-- | net/rds/ib_mr.h | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/net/rds/ib_mr.h b/net/rds/ib_mr.h index 2f9b9c3afc59..1c754f4acbe5 100644 --- a/net/rds/ib_mr.h +++ b/net/rds/ib_mr.h @@ -48,6 +48,21 @@ struct rds_ib_fmr { u64 *dma; }; +enum rds_ib_fr_state { + FRMR_IS_FREE, /* mr invalidated & ready for use */ + FRMR_IS_INUSE, /* mr is in use or used & can be invalidated */ + FRMR_IS_STALE, /* Stale MR and needs to be dropped */ +}; + +struct rds_ib_frmr { + struct ib_mr *mr; + enum rds_ib_fr_state fr_state; + bool fr_inv; + struct ib_send_wr fr_wr; + unsigned int dma_npages; + unsigned int sg_byte_len; +}; + /* This is stored as mr->r_trans_private. */ struct rds_ib_mr { struct rds_ib_device *device; @@ -66,6 +81,7 @@ struct rds_ib_mr { union { struct rds_ib_fmr fmr; + struct rds_ib_frmr frmr; } u; }; @@ -88,6 +104,7 @@ struct rds_ib_mr_pool { unsigned long max_items_soft; unsigned long max_free_pinned; struct ib_fmr_attr fmr_attr; + bool use_fastreg; }; extern struct workqueue_struct *rds_ib_mr_wq; @@ -121,4 +138,11 @@ struct rds_ib_mr *rds_ib_try_reuse_ibmr(struct rds_ib_mr_pool *); void rds_ib_unreg_fmr(struct list_head *, unsigned int *, unsigned long *, unsigned int); void rds_ib_free_fmr_list(struct rds_ib_mr *); +struct rds_ib_mr *rds_ib_reg_frmr(struct rds_ib_device *rds_ibdev, + struct rds_ib_connection *ic, + struct scatterlist *sg, + unsigned long nents, u32 *key); +void rds_ib_unreg_frmr(struct list_head *list, unsigned int *nfreed, + unsigned long *unpinned, unsigned int goal); +void rds_ib_free_frmr_list(struct rds_ib_mr *); #endif |