Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

Pull infiniband/RDMA updates from Roland Dreier:
 - large set of iSER initiator improvements
 - hardware driver fixes for cxgb4, mlx5 and ocrdma
 - small fixes to core midlayer

* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband: (47 commits)
  RDMA/cxgb4: Fix ntuple calculation for ipv6 and remove duplicate line
  RDMA/cxgb4: Add missing neigh_release in find_route
  RDMA/cxgb4: Take IPv6 into account for best_mtu and set_emss
  RDMA/cxgb4: Make c4iw_wr_log_size_order static
  IB/core: Fix XRC race condition in ib_uverbs_open_qp
  IB/core: Clear AH attr variable to prevent garbage data
  RDMA/ocrdma: Save the bit environment, spare unncessary parenthesis
  RDMA/ocrdma: The kernel has a perfectly good BIT() macro - use it
  RDMA/ocrdma: Don't memset() buffers we just allocated with kzalloc()
  RDMA/ocrdma: Remove a unused-label warning
  RDMA/ocrdma: Convert kernel VA to PA for mmap in user
  RDMA/ocrdma: Get vlan tag from ib_qp_attrs
  RDMA/ocrdma: Add default GID at index 0
  IB/mlx5, iser, isert: Add Signature API additions
  Target/iser: Centralize ib_sig_domain setting
  IB/iser: Centralize ib_sig_domain settings
  IB/mlx5: Use extended internal signature layout
  IB/iser: Set IP_CSUM as default guard type
  IB/iser: Remove redundant assignment
  IB/mlx5: Use enumerations for PI copy mask
  ...

1 files changed, 14 insertions, 18 deletions

diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index ed44cc07a7b3..470a011d6fa4 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -491,20 +491,14 @@ struct ib_mr_init_attr {
 	u32	    flags;
 };
 
-enum ib_signature_type {
-	IB_SIG_TYPE_T10_DIF,
-};
-
 /**
- * T10-DIF Signature types
- * T10-DIF types are defined by SCSI
- * specifications.
+ * Signature types
+ * IB_SIG_TYPE_NONE: Unprotected.
+ * IB_SIG_TYPE_T10_DIF: Type T10-DIF
  */
-enum ib_t10_dif_type {
-	IB_T10DIF_NONE,
-	IB_T10DIF_TYPE1,
-	IB_T10DIF_TYPE2,
-	IB_T10DIF_TYPE3
+enum ib_signature_type {
+	IB_SIG_TYPE_NONE,
+	IB_SIG_TYPE_T10_DIF,
 };
 
 /**
@@ -520,24 +514,26 @@ enum ib_t10_dif_bg_type {
 /**
  * struct ib_t10_dif_domain - Parameters specific for T10-DIF
  *     domain.
- * @type: T10-DIF type (0|1|2|3)
  * @bg_type: T10-DIF block guard type (CRC|CSUM)
  * @pi_interval: protection information interval.
  * @bg: seed of guard computation.
  * @app_tag: application tag of guard block
  * @ref_tag: initial guard block reference tag.
- * @type3_inc_reftag: T10-DIF type 3 does not state
- *     about the reference tag, it is the user
- *     choice to increment it or not.
+ * @ref_remap: Indicate wethear the reftag increments each block
+ * @app_escape: Indicate to skip block check if apptag=0xffff
+ * @ref_escape: Indicate to skip block check if reftag=0xffffffff
+ * @apptag_check_mask: check bitmask of application tag.
  */
 struct ib_t10_dif_domain {
-	enum ib_t10_dif_type	type;
 	enum ib_t10_dif_bg_type bg_type;
 	u16			pi_interval;
 	u16			bg;
 	u16			app_tag;
 	u32			ref_tag;
-	bool			type3_inc_reftag;
+	bool			ref_remap;
+	bool			app_escape;
+	bool			ref_escape;
+	u16			apptag_check_mask;
 };
 
 /**