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authorMax Gurtovoy <maxg@mellanox.com>2020-05-28 16:45:50 -0300
committerJason Gunthorpe <jgg@mellanox.com>2020-06-02 20:32:54 -0300
commit1f55b7ab907d373581e9abf3fc4b24ed19cf831f (patch)
treeea027873f41d1300bf929c4985a899e9d20af0a6 /drivers/infiniband
parentf0c73c70db99e30f790572b97531aa569ec1ba60 (diff)
downloadlinux-1f55b7ab907d373581e9abf3fc4b24ed19cf831f.tar.bz2
RDMA/mlx4: Remove FMR support for memory registration
HCA's that are driven by mlx4 driver support FRWR method to register memory. Remove the ancient and unsafe FMR method. Link: https://lore.kernel.org/r/8-v3-f58e6669d5d3+2cf-fmr_removal_jgg@mellanox.com Reviewed-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Max Gurtovoy <maxg@mellanox.com> Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'drivers/infiniband')
-rw-r--r--drivers/infiniband/hw/mlx4/main.c11
-rw-r--r--drivers/infiniband/hw/mlx4/mlx4_ib.h16
-rw-r--r--drivers/infiniband/hw/mlx4/mr.c93
3 files changed, 0 insertions, 120 deletions
diff --git a/drivers/infiniband/hw/mlx4/main.c b/drivers/infiniband/hw/mlx4/main.c
index 275722cec8c6..816d28854a8e 100644
--- a/drivers/infiniband/hw/mlx4/main.c
+++ b/drivers/infiniband/hw/mlx4/main.c
@@ -558,7 +558,6 @@ static int mlx4_ib_query_device(struct ib_device *ibdev,
props->max_mcast_qp_attach = dev->dev->caps.num_qp_per_mgm;
props->max_total_mcast_qp_attach = props->max_mcast_qp_attach *
props->max_mcast_grp;
- props->max_map_per_fmr = dev->dev->caps.max_fmr_maps;
props->hca_core_clock = dev->dev->caps.hca_core_clock * 1000UL;
props->timestamp_mask = 0xFFFFFFFFFFFFULL;
props->max_ah = INT_MAX;
@@ -2600,13 +2599,6 @@ static const struct ib_device_ops mlx4_ib_dev_wq_ops = {
.modify_wq = mlx4_ib_modify_wq,
};
-static const struct ib_device_ops mlx4_ib_dev_fmr_ops = {
- .alloc_fmr = mlx4_ib_fmr_alloc,
- .dealloc_fmr = mlx4_ib_fmr_dealloc,
- .map_phys_fmr = mlx4_ib_map_phys_fmr,
- .unmap_fmr = mlx4_ib_unmap_fmr,
-};
-
static const struct ib_device_ops mlx4_ib_dev_mw_ops = {
.alloc_mw = mlx4_ib_alloc_mw,
.dealloc_mw = mlx4_ib_dealloc_mw,
@@ -2724,9 +2716,6 @@ static void *mlx4_ib_add(struct mlx4_dev *dev)
ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_wq_ops);
}
- if (!mlx4_is_slave(ibdev->dev))
- ib_set_device_ops(&ibdev->ib_dev, &mlx4_ib_dev_fmr_ops);
-
if (dev->caps.flags & MLX4_DEV_CAP_FLAG_MEM_WINDOW ||
dev->caps.bmme_flags & MLX4_BMME_FLAG_TYPE_2_WIN) {
ibdev->ib_dev.uverbs_cmd_mask |=
diff --git a/drivers/infiniband/hw/mlx4/mlx4_ib.h b/drivers/infiniband/hw/mlx4/mlx4_ib.h
index 182a237b87f7..6f4ea1067095 100644
--- a/drivers/infiniband/hw/mlx4/mlx4_ib.h
+++ b/drivers/infiniband/hw/mlx4/mlx4_ib.h
@@ -146,11 +146,6 @@ struct mlx4_ib_mw {
struct mlx4_mw mmw;
};
-struct mlx4_ib_fmr {
- struct ib_fmr ibfmr;
- struct mlx4_fmr mfmr;
-};
-
#define MAX_REGS_PER_FLOW 2
struct mlx4_flow_reg_id {
@@ -679,11 +674,6 @@ static inline struct mlx4_ib_mw *to_mmw(struct ib_mw *ibmw)
return container_of(ibmw, struct mlx4_ib_mw, ibmw);
}
-static inline struct mlx4_ib_fmr *to_mfmr(struct ib_fmr *ibfmr)
-{
- return container_of(ibfmr, struct mlx4_ib_fmr, ibfmr);
-}
-
static inline struct mlx4_ib_flow *to_mflow(struct ib_flow *ibflow)
{
return container_of(ibflow, struct mlx4_ib_flow, ibflow);
@@ -794,12 +784,6 @@ int mlx4_ib_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
int mlx4_ib_mad_init(struct mlx4_ib_dev *dev);
void mlx4_ib_mad_cleanup(struct mlx4_ib_dev *dev);
-struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int mr_access_flags,
- struct ib_fmr_attr *fmr_attr);
-int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list, int npages,
- u64 iova);
-int mlx4_ib_unmap_fmr(struct list_head *fmr_list);
-int mlx4_ib_fmr_dealloc(struct ib_fmr *fmr);
int __mlx4_ib_query_port(struct ib_device *ibdev, u8 port,
struct ib_port_attr *props, int netw_view);
int __mlx4_ib_query_pkey(struct ib_device *ibdev, u8 port, u16 index,
diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c
index b0121c90c561..e2fb71b23c80 100644
--- a/drivers/infiniband/hw/mlx4/mr.c
+++ b/drivers/infiniband/hw/mlx4/mr.c
@@ -698,99 +698,6 @@ err_free:
return ERR_PTR(err);
}
-struct ib_fmr *mlx4_ib_fmr_alloc(struct ib_pd *pd, int acc,
- struct ib_fmr_attr *fmr_attr)
-{
- struct mlx4_ib_dev *dev = to_mdev(pd->device);
- struct mlx4_ib_fmr *fmr;
- int err = -ENOMEM;
-
- fmr = kmalloc(sizeof *fmr, GFP_KERNEL);
- if (!fmr)
- return ERR_PTR(-ENOMEM);
-
- err = mlx4_fmr_alloc(dev->dev, to_mpd(pd)->pdn, convert_access(acc),
- fmr_attr->max_pages, fmr_attr->max_maps,
- fmr_attr->page_shift, &fmr->mfmr);
- if (err)
- goto err_free;
-
- err = mlx4_fmr_enable(to_mdev(pd->device)->dev, &fmr->mfmr);
- if (err)
- goto err_mr;
-
- fmr->ibfmr.rkey = fmr->ibfmr.lkey = fmr->mfmr.mr.key;
-
- return &fmr->ibfmr;
-
-err_mr:
- (void) mlx4_mr_free(to_mdev(pd->device)->dev, &fmr->mfmr.mr);
-
-err_free:
- kfree(fmr);
-
- return ERR_PTR(err);
-}
-
-int mlx4_ib_map_phys_fmr(struct ib_fmr *ibfmr, u64 *page_list,
- int npages, u64 iova)
-{
- struct mlx4_ib_fmr *ifmr = to_mfmr(ibfmr);
- struct mlx4_ib_dev *dev = to_mdev(ifmr->ibfmr.device);
-
- return mlx4_map_phys_fmr(dev->dev, &ifmr->mfmr, page_list, npages, iova,
- &ifmr->ibfmr.lkey, &ifmr->ibfmr.rkey);
-}
-
-int mlx4_ib_unmap_fmr(struct list_head *fmr_list)
-{
- struct ib_fmr *ibfmr;
- int err;
- struct mlx4_dev *mdev = NULL;
-
- list_for_each_entry(ibfmr, fmr_list, list) {
- if (mdev && to_mdev(ibfmr->device)->dev != mdev)
- return -EINVAL;
- mdev = to_mdev(ibfmr->device)->dev;
- }
-
- if (!mdev)
- return 0;
-
- list_for_each_entry(ibfmr, fmr_list, list) {
- struct mlx4_ib_fmr *ifmr = to_mfmr(ibfmr);
-
- mlx4_fmr_unmap(mdev, &ifmr->mfmr, &ifmr->ibfmr.lkey, &ifmr->ibfmr.rkey);
- }
-
- /*
- * Make sure all MPT status updates are visible before issuing
- * SYNC_TPT firmware command.
- */
- wmb();
-
- err = mlx4_SYNC_TPT(mdev);
- if (err)
- pr_warn("SYNC_TPT error %d when "
- "unmapping FMRs\n", err);
-
- return 0;
-}
-
-int mlx4_ib_fmr_dealloc(struct ib_fmr *ibfmr)
-{
- struct mlx4_ib_fmr *ifmr = to_mfmr(ibfmr);
- struct mlx4_ib_dev *dev = to_mdev(ibfmr->device);
- int err;
-
- err = mlx4_fmr_free(dev->dev, &ifmr->mfmr);
-
- if (!err)
- kfree(ifmr);
-
- return err;
-}
-
static int mlx4_set_page(struct ib_mr *ibmr, u64 addr)
{
struct mlx4_ib_mr *mr = to_mmr(ibmr);