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RDMA/rxe: Use driver_unregister and new unregistration API

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rxe does not have correct locking for its registration/unregistration
paths, use the core code to handle it instead. In this mode
ib_unregister_device will also do the dealloc, so rxe is required to do
clean up from a callback.

The core code ensures that unregistration is done only once, and generally
takes care of locking and concurrency problems for rxe.

Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Jason Gunthorpe
2019-01-22 16:27:24 -07:00
parent d0899892ed
commit c367074b6c
8 changed files with 30 additions and 87 deletions
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6
drivers/infiniband/sw/rxe/rxe.h
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@@ -96,15 +96,9 @@ static inline u32 rxe_crc32(struct rxe_dev *rxe,
void rxe_set_mtu(struct rxe_dev *rxe, unsigned int dev_mtu);
int rxe_add(struct rxe_dev *rxe, unsigned int mtu);
void rxe_remove(struct rxe_dev *rxe);
void rxe_remove_all(void);
void rxe_rcv(struct sk_buff *skb);
static inline void rxe_dev_put(struct rxe_dev *rxe)
{
kref_put(&rxe->ref_cnt, rxe_release);
}
struct rxe_dev *get_rxe_by_name(const char *name);
/* The caller must do a matching ib_device_put(&dev->ib_dev) */