IB/core: Get rid of redundant verb ib_destroy_mr
This was added in a thought of uniting all mr allocation
and deallocation routines but the fact is we have a single
deallocation routine already, ib_dereg_mr.
And, move mlx5_ib_destroy_mr specific logic into mlx5_ib_dereg_mr
(includes only signature stuff for now).
And, fixup the only callers (iser/isert) accordingly.
Signed-off-by: Sagi Grimberg <sagig@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index bac3fb4..8197ce7 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1257,23 +1257,6 @@
}
EXPORT_SYMBOL(ib_create_mr);
-int ib_destroy_mr(struct ib_mr *mr)
-{
- struct ib_pd *pd;
- int ret;
-
- if (atomic_read(&mr->usecnt))
- return -EBUSY;
-
- pd = mr->pd;
- ret = mr->device->destroy_mr(mr);
- if (!ret)
- atomic_dec(&pd->usecnt);
-
- return ret;
-}
-EXPORT_SYMBOL(ib_destroy_mr);
-
struct ib_mr *ib_alloc_fast_reg_mr(struct ib_pd *pd, int max_page_list_len)
{
struct ib_mr *mr;
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index bac5f98..48f02da 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -1499,7 +1499,6 @@
dev->ib_dev.get_dma_mr = mlx5_ib_get_dma_mr;
dev->ib_dev.reg_user_mr = mlx5_ib_reg_user_mr;
dev->ib_dev.dereg_mr = mlx5_ib_dereg_mr;
- dev->ib_dev.destroy_mr = mlx5_ib_destroy_mr;
dev->ib_dev.attach_mcast = mlx5_ib_mcg_attach;
dev->ib_dev.detach_mcast = mlx5_ib_mcg_detach;
dev->ib_dev.process_mad = mlx5_ib_process_mad;
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 7cae098..29c74e9 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -573,7 +573,6 @@
int mlx5_ib_update_mtt(struct mlx5_ib_mr *mr, u64 start_page_index,
int npages, int zap);
int mlx5_ib_dereg_mr(struct ib_mr *ibmr);
-int mlx5_ib_destroy_mr(struct ib_mr *ibmr);
struct ib_mr *mlx5_ib_create_mr(struct ib_pd *pd,
struct ib_mr_init_attr *mr_init_attr);
struct ib_mr *mlx5_ib_alloc_fast_reg_mr(struct ib_pd *pd,
diff --git a/drivers/infiniband/hw/mlx5/mr.c b/drivers/infiniband/hw/mlx5/mr.c
index 10d2b21..9559ee8 100644
--- a/drivers/infiniband/hw/mlx5/mr.c
+++ b/drivers/infiniband/hw/mlx5/mr.c
@@ -1170,6 +1170,19 @@
int umred = mr->umred;
int err;
+ if (mr->sig) {
+ if (mlx5_core_destroy_psv(dev->mdev,
+ mr->sig->psv_memory.psv_idx))
+ mlx5_ib_warn(dev, "failed to destroy mem psv %d\n",
+ mr->sig->psv_memory.psv_idx);
+ if (mlx5_core_destroy_psv(dev->mdev,
+ mr->sig->psv_wire.psv_idx))
+ mlx5_ib_warn(dev, "failed to destroy wire psv %d\n",
+ mr->sig->psv_wire.psv_idx);
+ kfree(mr->sig);
+ mr->sig = NULL;
+ }
+
if (!umred) {
err = destroy_mkey(dev, mr);
if (err) {
@@ -1317,36 +1330,6 @@
return ERR_PTR(err);
}
-int mlx5_ib_destroy_mr(struct ib_mr *ibmr)
-{
- struct mlx5_ib_dev *dev = to_mdev(ibmr->device);
- struct mlx5_ib_mr *mr = to_mmr(ibmr);
- int err;
-
- if (mr->sig) {
- if (mlx5_core_destroy_psv(dev->mdev,
- mr->sig->psv_memory.psv_idx))
- mlx5_ib_warn(dev, "failed to destroy mem psv %d\n",
- mr->sig->psv_memory.psv_idx);
- if (mlx5_core_destroy_psv(dev->mdev,
- mr->sig->psv_wire.psv_idx))
- mlx5_ib_warn(dev, "failed to destroy wire psv %d\n",
- mr->sig->psv_wire.psv_idx);
- kfree(mr->sig);
- }
-
- err = destroy_mkey(dev, mr);
- if (err) {
- mlx5_ib_warn(dev, "failed to destroy mkey 0x%x (%d)\n",
- mr->mmr.key, err);
- return err;
- }
-
- kfree(mr);
-
- return err;
-}
-
struct ib_mr *mlx5_ib_alloc_fast_reg_mr(struct ib_pd *pd,
int max_page_list_len)
{
diff --git a/drivers/infiniband/ulp/iser/iser_verbs.c b/drivers/infiniband/ulp/iser/iser_verbs.c
index 5c9f565..7122186 100644
--- a/drivers/infiniband/ulp/iser/iser_verbs.c
+++ b/drivers/infiniband/ulp/iser/iser_verbs.c
@@ -334,7 +334,7 @@
{
ib_free_fast_reg_page_list(pi_ctx->prot_frpl);
ib_dereg_mr(pi_ctx->prot_mr);
- ib_destroy_mr(pi_ctx->sig_mr);
+ ib_dereg_mr(pi_ctx->sig_mr);
kfree(pi_ctx);
}
diff --git a/drivers/infiniband/ulp/isert/ib_isert.c b/drivers/infiniband/ulp/isert/ib_isert.c
index d851e18..c054af1 100644
--- a/drivers/infiniband/ulp/isert/ib_isert.c
+++ b/drivers/infiniband/ulp/isert/ib_isert.c
@@ -491,7 +491,7 @@
if (fr_desc->pi_ctx) {
ib_free_fast_reg_page_list(fr_desc->pi_ctx->prot_frpl);
ib_dereg_mr(fr_desc->pi_ctx->prot_mr);
- ib_destroy_mr(fr_desc->pi_ctx->sig_mr);
+ ib_dereg_mr(fr_desc->pi_ctx->sig_mr);
kfree(fr_desc->pi_ctx);
}
kfree(fr_desc);