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RDMA/restrack: Hide restrack DB from IB/core

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There is no need to expose internals of restrack DB to IB/core.

Signed-off-by: Leon Romanovsky <[email protected]>
Signed-off-by: Jason Gunthorpe <[email protected]>
This commit is contained in:
Leon Romanovsky 2019-02-18 22:25:47 +02:00 • committed by Jason Gunthorpe
commit 41eda65c61
6 changed files with 114 additions and 66 deletions
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7
include/rdma/ib_verbs.h
View file

@ -2533,6 +2533,8 @@ struct ib_device_ops {
DECLARE_RDMA_OBJ_SIZE(ib_pd);
};
struct rdma_restrack_root;
struct ib_device {
/* Do not access @dma_device directly from ULP nor from HW drivers. */
struct device *dma_device;
@ -2589,10 +2591,7 @@ struct ib_device {
#endif
u32 index;
/*
* Implementation details of the RDMA core, don't use in drivers
*/
struct rdma_restrack_root res;
struct rdma_restrack_root *res;
const struct uapi_definition *driver_def;
enum rdma_driver_id driver_id;

28
include/rdma/restrack.h
View file

@ -7,7 +7,6 @@
#define _RDMA_RESTRACK_H_
#include <linux/typecheck.h>
#include <linux/rwsem.h>
#include <linux/sched.h>
#include <linux/kref.h>
#include <linux/completion.h>
@ -50,31 +49,6 @@ enum rdma_restrack_type {
};
struct ib_device;
struct rdma_restrack_entry;
/**
* struct rdma_restrack_root - main resource tracking management
* entity, per-device
*/
struct rdma_restrack_root {
/*
* @rwsem: Read/write lock to protect erase of entry.
* Lists and insertions are protected by XArray internal lock.
*/
struct rw_semaphore rwsem;
/**
* @xa: Array of XArray structures to hold restrack entries.
* We want to use array of XArrays because insertion is type
* dependent. For types with xisiting unique ID (like QPN),
* we will insert to that unique index. For other types,
* we insert based on pointers and auto-allocate unique index.
*/
struct xarray xa[RDMA_RESTRACK_MAX];
/**
* @next_id: Next ID to support cyclic allocation
*/
u32 next_id[RDMA_RESTRACK_MAX];
};
/**
* struct rdma_restrack_entry - metadata per-entry
@ -125,8 +99,6 @@ struct rdma_restrack_entry {
u32 id;
};
void rdma_restrack_init(struct ib_device *dev);
void rdma_restrack_clean(struct ib_device *dev);
int rdma_restrack_count(struct ib_device *dev,
enum rdma_restrack_type type,
struct pid_namespace *ns);