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RDMA: Handle PD allocations by IB/core

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The PD allocations in IB/core allows us to simplify drivers and their
error flows in their .alloc_pd() paths. The changes in .alloc_pd() go hand
in had with relevant update in .dealloc_pd().

We will use this opportunity and convert .dealloc_pd() to don't fail, as
it was suggested a long time ago, failures are not happening as we have
never seen a WARN_ON print.

Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Leon Romanovsky
2019-02-03 14:55:51 +02:00
committed by Jason Gunthorpe
parent 30471d4b20
commit 21a428a019
39 changed files with 325 additions and 409 deletions
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16
drivers/infiniband/sw/rxe/rxe_verbs.c
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@@ -191,23 +191,20 @@ static int rxe_port_immutable(struct ib_device *dev, u8 port_num,
return 0;
}
static struct ib_pd *rxe_alloc_pd(struct ib_device *dev,
struct ib_ucontext *context,
struct ib_udata *udata)
static int rxe_alloc_pd(struct ib_pd *ibpd, struct ib_ucontext *context,
struct ib_udata *udata)
{
struct rxe_dev *rxe = to_rdev(dev);
struct rxe_pd *pd;
struct rxe_dev *rxe = to_rdev(ibpd->device);
struct rxe_pd *pd = to_rpd(ibpd);
pd = rxe_alloc(&rxe->pd_pool);
return pd ? &pd->ibpd : ERR_PTR(-ENOMEM);
return rxe_add_to_pool(&rxe->pd_pool, &pd->pelem);
}
static int rxe_dealloc_pd(struct ib_pd *ibpd)
static void rxe_dealloc_pd(struct ib_pd *ibpd)
{
struct rxe_pd *pd = to_rpd(ibpd);
rxe_drop_ref(pd);
return 0;
}
static struct ib_ah *rxe_create_ah(struct ib_pd *ibpd,
@@ -1183,6 +1180,7 @@ static const struct ib_device_ops rxe_dev_ops = {
.reg_user_mr = rxe_reg_user_mr,
.req_notify_cq = rxe_req_notify_cq,
.resize_cq = rxe_resize_cq,
INIT_RDMA_OBJ_SIZE(ib_pd, rxe_pd, ibpd),
};
int rxe_register_device(struct rxe_dev *rxe)