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IB: remove in-kernel support for memory windows

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Remove the unused ib_allow_mw and ib_bind_mw functions, remove the
unused IB_WR_BIND_MW and IB_WC_BIND_MW opcodes and move ib_dealloc_mw
into the uverbs module.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Sagi Grimberg <sagig@mellanox.com>
Reviewed-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com> [core]
Reviewed-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Christoph Hellwig
2015-12-23 19:12:48 +01:00
committed by Doug Ledford
parent b7d3e0a94f
commit feb7c1e38b
27 changed files with 16 additions and 381 deletions
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83
include/rdma/ib_verbs.h
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@@ -812,7 +812,6 @@ enum ib_wc_opcode {
IB_WC_RDMA_READ,
IB_WC_COMP_SWAP,
IB_WC_FETCH_ADD,
IB_WC_BIND_MW,
IB_WC_LSO,
IB_WC_LOCAL_INV,
IB_WC_REG_MR,
@@ -1110,7 +1109,6 @@ enum ib_wr_opcode {
IB_WR_REG_MR,
IB_WR_MASKED_ATOMIC_CMP_AND_SWP,
IB_WR_MASKED_ATOMIC_FETCH_AND_ADD,
IB_WR_BIND_MW,
IB_WR_REG_SIG_MR,
/* reserve values for low level drivers' internal use.
* These values will not be used at all in the ib core layer.
@@ -1145,23 +1143,6 @@ struct ib_sge {
u32 lkey;
};
/**
* struct ib_mw_bind_info - Parameters for a memory window bind operation.
* @mr: A memory region to bind the memory window to.
* @addr: The address where the memory window should begin.
* @length: The length of the memory window, in bytes.
* @mw_access_flags: Access flags from enum ib_access_flags for the window.
*
* This struct contains the shared parameters for type 1 and type 2
* memory window bind operations.
*/
struct ib_mw_bind_info {
struct ib_mr *mr;
u64 addr;
u64 length;
int mw_access_flags;
};
struct ib_cqe {
void (*done)(struct ib_cq *cq, struct ib_wc *wc);
};
@@ -1237,19 +1218,6 @@ static inline struct ib_reg_wr *reg_wr(struct ib_send_wr *wr)
return container_of(wr, struct ib_reg_wr, wr);
}
struct ib_bind_mw_wr {
struct ib_send_wr wr;
struct ib_mw *mw;
/* The new rkey for the memory window. */
u32 rkey;
struct ib_mw_bind_info bind_info;
};
static inline struct ib_bind_mw_wr *bind_mw_wr(struct ib_send_wr *wr)
{
return container_of(wr, struct ib_bind_mw_wr, wr);
}
struct ib_sig_handover_wr {
struct ib_send_wr wr;
struct ib_sig_attrs *sig_attrs;
@@ -1299,18 +1267,6 @@ enum ib_mr_rereg_flags {
IB_MR_REREG_SUPPORTED = ((IB_MR_REREG_ACCESS << 1) - 1)
};
/**
* struct ib_mw_bind - Parameters for a type 1 memory window bind operation.
* @wr_id: Work request id.
* @send_flags: Flags from ib_send_flags enum.
* @bind_info: More parameters of the bind operation.
*/
struct ib_mw_bind {
u64 wr_id;
int send_flags;
struct ib_mw_bind_info bind_info;
};
struct ib_fmr_attr {
int max_pages;
int max_maps;
@@ -1845,9 +1801,6 @@ struct ib_device {
int sg_nents);
struct ib_mw * (*alloc_mw)(struct ib_pd *pd,
enum ib_mw_type type);
int (*bind_mw)(struct ib_qp *qp,
struct ib_mw *mw,
struct ib_mw_bind *mw_bind);
int (*dealloc_mw)(struct ib_mw *mw);
struct ib_fmr * (*alloc_fmr)(struct ib_pd *pd,
int mr_access_flags,
@@ -2975,42 +2928,6 @@ static inline u32 ib_inc_rkey(u32 rkey)
return ((rkey + 1) & mask) | (rkey & ~mask);
}
/**
* ib_alloc_mw - Allocates a memory window.
* @pd: The protection domain associated with the memory window.
* @type: The type of the memory window (1 or 2).
*/
struct ib_mw *ib_alloc_mw(struct ib_pd *pd, enum ib_mw_type type);
/**
* ib_bind_mw - Posts a work request to the send queue of the specified
* QP, which binds the memory window to the given address range and
* remote access attributes.
* @qp: QP to post the bind work request on.
* @mw: The memory window to bind.
* @mw_bind: Specifies information about the memory window, including
* its address range, remote access rights, and associated memory region.
*
* If there is no immediate error, the function will update the rkey member
* of the mw parameter to its new value. The bind operation can still fail
* asynchronously.
*/
static inline int ib_bind_mw(struct ib_qp *qp,
struct ib_mw *mw,
struct ib_mw_bind *mw_bind)
{
/* XXX reference counting in corresponding MR? */
return mw->device->bind_mw ?
mw->device->bind_mw(qp, mw, mw_bind) :
-ENOSYS;
}
/**
* ib_dealloc_mw - Deallocates a memory window.
* @mw: The memory window to deallocate.
*/
int ib_dealloc_mw(struct ib_mw *mw);
/**
* ib_alloc_fmr - Allocates a unmapped fast memory region.
* @pd: The protection domain associated with the unmapped region.