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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/include/uapi/rdma/rdma_user_ioctl_cmds.h
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@@ -36,7 +36,7 @@
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 #include <linux/types.h>
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 #include <linux/ioctl.h>
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-/* Documentation/ioctl/ioctl-number.txt */
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+/* Documentation/userspace-api/ioctl/ioctl-number.rst */
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 #define RDMA_IOCTL_MAGIC	0x1b
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 #define RDMA_VERBS_IOCTL \
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 	_IOWR(RDMA_IOCTL_MAGIC, 1, struct ib_uverbs_ioctl_hdr)
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@@ -53,7 +53,7 @@
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 struct ib_uverbs_attr {
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 	__u16 attr_id;		/* command specific type attribute */
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-	__u16 len;		/* only for pointers */
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+	__u16 len;		/* only for pointers and IDRs array */
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 	__u16 flags;		/* combination of UVERBS_ATTR_F_XXXX */
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 	union {
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 		struct {
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@@ -63,7 +63,10 @@
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 		__u16 reserved;
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 	} attr_data;
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 	union {
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-		/* Used by PTR_IN/OUT, ENUM_IN and IDR */
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+		/*
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+		 * ptr to command, inline data, idr/fd or
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+		 * ptr to __u32 array of IDRs
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+		 */
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 		__aligned_u64 data;
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 		/* Used by FD_IN and FD_OUT */
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 		__s64 data_s64;
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@@ -79,26 +82,6 @@
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 	__u32 driver_id;
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 	__u32 reserved2;
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 	struct ib_uverbs_attr  attrs[0];
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-};
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-
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-enum rdma_driver_id {
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-	RDMA_DRIVER_UNKNOWN,
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-	RDMA_DRIVER_MLX5,
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-	RDMA_DRIVER_MLX4,
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-	RDMA_DRIVER_CXGB3,
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-	RDMA_DRIVER_CXGB4,
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-	RDMA_DRIVER_MTHCA,
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-	RDMA_DRIVER_BNXT_RE,
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-	RDMA_DRIVER_OCRDMA,
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-	RDMA_DRIVER_NES,
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-	RDMA_DRIVER_I40IW,
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-	RDMA_DRIVER_VMW_PVRDMA,
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-	RDMA_DRIVER_QEDR,
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-	RDMA_DRIVER_HNS,
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-	RDMA_DRIVER_USNIC,
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-	RDMA_DRIVER_RXE,
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-	RDMA_DRIVER_HFI1,
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-	RDMA_DRIVER_QIB,
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 };
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 #endif