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

Pull rdma updates from Jason Gunthorpe:
 "Many AI driven bug fixes, and several big driver API cleanups

   - Driver bug fixes and minor cleanups in mlx5, hns, rxe, efa, siw,
     rtrs, mana, irdma, mlx4. Commonly error path flows, integer
     arithmetic overflows on unsafe data, out of bounds access, and use
     after free issues under races.

   - Second half of the new udata API for drivers focusing on uAPI
     response

   - bnxt_re supports more options for QP creation that will allow a dv
     path in rdma-core

   - Untangle the module dependencies so drivers don't link to
     ib_uverbs.ko as was originall intended

   - Provide a new way to handle umems with a consistent simplified uAPI
     and update several drivers to use it. This brings dmabuf support to
     more places and more drivers

   - Support for mlx5 rate limit and packet pacing for UD and UC

   - A batch of fixes for the new shared FRMR pools infrastructure"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (148 commits)
  RDMA/irdma: Replace waitqueue and flag with completion
  RDMA/hns: Fix memory leak of bonding resources
  RDMA/rtrs-srv: Bound RDMA-Write length to chunk size in rdma_write_sg
  docs: infiniband: correct name of option to enable the ib_uverbs module
  RDMA/bnxt_re: Reject GET_TOGGLE_MEM when toggle page was not allocated
  RDMA/bnxt_re: Fail DBR related page allocation UAPIs if the feature is disabled
  RDMA/bnxt_re: Avoid repeated requests to allocate WC pages
  RDMA/bnxt_re: Proper rollback if the ioremap fails
  RDMA/bnxt_re: Add a max slot check for SQ
  RDMA/bnxt_re: Avoid displaying the kernel pointer
  RDMA/bnxt_re: Free CQ toggle page after firmware teardown
  RDMA/bnxt_re: Free SRQ toggle page after firmware teardown
  RDMA/bnxt_re: Initialize dpi variable to zero
  ABI: sysfs-class-infiniband: minor cleanup
  RDMA/mlx5: Release the HW‑provided UAR index rather than the SW one
  RDMA/mlx5: Fix undefined shift of user RQ WQE size
  RDMA/mlx5: Remove raw RSS QP restrack tracking
  RDMA/mlx5: Remove DCT restrack tracking
  RDMA/mlx5: Drop FRMR pool handle on UMR revoke failure
  RDMA/core: Add ib_frmr_pool_drop for unrecoverable handles
  ...

include/uapi/rdma/bnxt_re-abi.h

@@ -126,7 +126,7 @@ struct bnxt_re_resize_cq_req {
 };
 
 enum bnxt_re_qp_mask {
-	BNXT_RE_QP_REQ_MASK_VAR_WQE_SQ_SLOTS = 0x1,
+	BNXT_RE_QP_REQ_MASK_FIXED_QUE_ATTR = 0x1,
 };
 
 struct bnxt_re_qp_req {
@@ -135,6 +135,11 @@ struct bnxt_re_qp_req {
 	__aligned_u64 qp_handle;
 	__aligned_u64 comp_mask;
 	__u32 sq_slots;
+	__u32 sq_npsn;
+};
+
+enum bnxt_re_create_qp_attrs {
+	BNXT_RE_CREATE_QP_ATTR_DBR_HANDLE = UVERBS_ID_DRIVER_NS_WITH_UHW,
 };
 
 struct bnxt_re_qp_resp {

include/uapi/rdma/ib_user_ioctl_cmds.h

@@ -117,6 +117,7 @@ enum uverbs_attrs_create_cq_cmd_attr_ids {
 	UVERBS_ATTR_CREATE_CQ_BUFFER_LENGTH,
 	UVERBS_ATTR_CREATE_CQ_BUFFER_FD,
 	UVERBS_ATTR_CREATE_CQ_BUFFER_OFFSET,
+	UVERBS_ATTR_CREATE_CQ_BUF_UMEM,
 };
 
 enum uverbs_attrs_destroy_cq_cmd_attr_ids {
@@ -158,6 +159,9 @@ enum uverbs_attrs_create_qp_cmd_attr_ids {
 	UVERBS_ATTR_CREATE_QP_EVENT_FD,
 	UVERBS_ATTR_CREATE_QP_RESP_CAP,
 	UVERBS_ATTR_CREATE_QP_RESP_QP_NUM,
+	UVERBS_ATTR_CREATE_QP_BUF_UMEM,
+	UVERBS_ATTR_CREATE_QP_RQ_BUF_UMEM,
+	UVERBS_ATTR_CREATE_QP_SQ_BUF_UMEM,
 };
 
 enum uverbs_attrs_destroy_qp_cmd_attr_ids {

include/uapi/rdma/ib_user_ioctl_verbs.h

@@ -273,4 +273,31 @@ struct ib_uverbs_gid_entry {
 	__u32 netdev_ifindex; /* It is 0 if there is no netdev associated with it */
 };
 
+enum ib_uverbs_buffer_type {
+	IB_UVERBS_BUFFER_TYPE_DMABUF,
+	IB_UVERBS_BUFFER_TYPE_VA,
+};
+
+/*
+ * Describes a single buffer backed by dma-buf or user virtual address.
+ * Used as the payload of a per-attribute UVERBS_ATTR_UMEM-typed attribute.
+ *
+ * @type: buffer type from enum ib_uverbs_buffer_type
+ * @fd: dma-buf file descriptor (valid for IB_UVERBS_BUFFER_TYPE_DMABUF)
+ * @flags: required flags; the kernel rejects the call with -EINVAL if any
+ *         bit is not understood. No bits are defined yet.
+ * @optional_flags: advisory flags; bits the kernel does not understand are
+ *                  silently ignored. No bits are defined yet.
+ * @addr: offset within dma-buf, or user virtual address for VA
+ * @length: buffer length in bytes
+ */
+struct ib_uverbs_buffer_desc {
+	__u32 type;
+	__s32 fd;
+	__u32 flags;
+	__u32 optional_flags;
+	__aligned_u64 addr;
+	__aligned_u64 length;
+};
+
 #endif

include/uapi/rdma/ib_user_verbs.h

@@ -1368,6 +1368,8 @@ enum ib_uverbs_device_cap_flags {
 	IB_UVERBS_DEVICE_FLUSH_PERSISTENT = 1ULL << 39,
 	/* Atomic write attributes */
 	IB_UVERBS_DEVICE_ATOMIC_WRITE = 1ULL << 40,
+	/* CoCo guest with DMA bounce buffering required */
+	IB_UVERBS_DEVICE_CC_DMA_BOUNCE = 1ULL << 41,
 };
 
 enum ib_uverbs_raw_packet_caps {

include/uapi/rdma/mlx5_user_ioctl_cmds.h

@@ -274,6 +274,11 @@ enum mlx5_ib_device_query_context_attrs {
 
 enum mlx5_ib_create_cq_attrs {
 	MLX5_IB_ATTR_CREATE_CQ_UAR_INDEX = UVERBS_ID_DRIVER_NS_WITH_UHW,
+	MLX5_IB_ATTR_CREATE_CQ_DBR_BUF_UMEM,
+};
+
+enum mlx5_ib_create_qp_attrs {
+	MLX5_IB_ATTR_CREATE_QP_DBR_BUF_UMEM = UVERBS_ID_DRIVER_NS_WITH_UHW,
 };
 
 enum mlx5_ib_reg_dmabuf_mr_attrs {