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RDMA/devices: Use xarray to store the clients

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This gives each client a unique ID and will let us move client_data to use
xarray, and revise the locking scheme.

clients have to be add/removed in strict FIFO/LIFO order as they
interdepend. To support this the client_ids are assigned to increase in
FIFO order. The existing linked list is kept to support reverse iteration
until xarray can get a reverse iteration API.

Signed-off-by: Jason Gunthorpe <[email protected]>
Reviewed-by: Parav Pandit <[email protected]>
This commit is contained in:
Jason Gunthorpe 2019-02-06 22:41:52 -07:00
commit e59178d895
2 changed files with 47 additions and 6 deletions
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3
include/rdma/ib_verbs.h
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@ -2610,7 +2610,7 @@ struct ib_device {
};
struct ib_client {
char *name;
const char *name;
void (*add) (struct ib_device *);
void (*remove)(struct ib_device *, void *client_data);
@ -2637,6 +2637,7 @@ struct ib_client {
const struct sockaddr *addr,
void *client_data);
struct list_head list;
u32 client_id;
/* kverbs are not required by the client */
u8 no_kverbs_req:1;