From: Maor Gottlieb <maorg@mellanox.com>
Date: Tue, 23 Jun 2020 14:30:39 +0300
Subject: RDMA: Add dedicated CM_ID resource tracker function
Patch-mainline: v5.9-rc1
Git-commit: 211cd9459fdabe9f556e539966f50825853bf262
References: jsc#SLE-15176
In order to avoid double multiplexing of the resource when it is a cm id,
add a dedicated callback function. In addition remove fill_res_entry which
is not used anymore.
Link: https://lore.kernel.org/r/20200623113043.1228482-8-leon@kernel.org
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/core/device.c | 2 +-
drivers/infiniband/core/nldev.c | 13 ++-----------
drivers/infiniband/hw/cxgb4/iw_cxgb4.h | 4 +---
drivers/infiniband/hw/cxgb4/provider.c | 9 +--------
drivers/infiniband/hw/cxgb4/restrack.c | 9 ++-------
include/rdma/ib_verbs.h | 4 ++--
6 files changed, 9 insertions(+), 32 deletions(-)
--- a/drivers/infiniband/core/device.c
+++ b/drivers/infiniband/core/device.c
@@ -2621,8 +2621,8 @@ void ib_set_device_ops(struct ib_device
SET_DEVICE_OP(dev_ops, drain_rq);
SET_DEVICE_OP(dev_ops, drain_sq);
SET_DEVICE_OP(dev_ops, enable_driver);
+ SET_DEVICE_OP(dev_ops, fill_res_cm_id_entry);
SET_DEVICE_OP(dev_ops, fill_res_cq_entry);
- SET_DEVICE_OP(dev_ops, fill_res_entry);
SET_DEVICE_OP(dev_ops, fill_res_mr_entry);
SET_DEVICE_OP(dev_ops, fill_res_qp_entry);
SET_DEVICE_OP(dev_ops, fill_stat_mr_entry);
--- a/drivers/infiniband/core/nldev.c
+++ b/drivers/infiniband/core/nldev.c
@@ -446,14 +446,6 @@ static int fill_res_name_pid(struct sk_b
return err ? -EMSGSIZE : 0;
}
-static bool fill_res_entry(struct ib_device *dev, struct sk_buff *msg,
- struct rdma_restrack_entry *res)
-{
- if (!dev->ops.fill_res_entry)
- return false;
- return dev->ops.fill_res_entry(msg, res);
-}
-
static int fill_res_qp_entry(struct sk_buff *msg, bool has_cap_net_admin,
struct rdma_restrack_entry *res, uint32_t port)
{
@@ -559,9 +551,8 @@ static int fill_res_cm_id_entry(struct s
if (fill_res_name_pid(msg, res))
goto err;
- if (fill_res_entry(dev, msg, res))
- goto err;
-
+ if (dev->ops.fill_res_cm_id_entry)
+ return dev->ops.fill_res_cm_id_entry(msg, cm_id);
return 0;
err: return -EMSGSIZE;
--- a/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
+++ b/drivers/infiniband/hw/cxgb4/iw_cxgb4.h
@@ -1053,11 +1053,9 @@ int c4iw_post_srq_recv(struct ib_srq *ib
const struct ib_recv_wr **bad_wr);
struct c4iw_wr_wait *c4iw_alloc_wr_wait(gfp_t gfp);
-typedef int c4iw_restrack_func(struct sk_buff *msg,
- struct rdma_restrack_entry *res);
int c4iw_fill_res_mr_entry(struct sk_buff *msg, struct ib_mr *ibmr);
int c4iw_fill_res_cq_entry(struct sk_buff *msg, struct ib_cq *ibcq);
int c4iw_fill_res_qp_entry(struct sk_buff *msg, struct ib_qp *ibqp);
-extern c4iw_restrack_func *c4iw_restrack_funcs[RDMA_RESTRACK_MAX];
+int c4iw_fill_res_cm_id_entry(struct sk_buff *msg, struct rdma_cm_id *cm_id);
#endif
--- a/drivers/infiniband/hw/cxgb4/provider.c
+++ b/drivers/infiniband/hw/cxgb4/provider.c
@@ -458,13 +458,6 @@ static void get_dev_fw_str(struct ib_dev
FW_HDR_FW_VER_BUILD_G(c4iw_dev->rdev.lldi.fw_vers));
}
-static int fill_res_entry(struct sk_buff *msg, struct rdma_restrack_entry *res)
-{
- return (res->type < ARRAY_SIZE(c4iw_restrack_funcs) &&
- c4iw_restrack_funcs[res->type]) ?
- c4iw_restrack_funcs[res->type](msg, res) : 0;
-}
-
static const struct ib_device_ops c4iw_dev_ops = {
.owner = THIS_MODULE,
.driver_id = RDMA_DRIVER_CXGB4,
@@ -486,7 +479,7 @@ static const struct ib_device_ops c4iw_d
.destroy_qp = c4iw_destroy_qp,
.destroy_srq = c4iw_destroy_srq,
.fill_res_cq_entry = c4iw_fill_res_cq_entry,
- .fill_res_entry = fill_res_entry,
+ .fill_res_cm_id_entry = c4iw_fill_res_cm_id_entry,
.fill_res_mr_entry = c4iw_fill_res_mr_entry,
.get_dev_fw_str = get_dev_fw_str,
.get_dma_mr = c4iw_get_dma_mr,
--- a/drivers/infiniband/hw/cxgb4/restrack.c
+++ b/drivers/infiniband/hw/cxgb4/restrack.c
@@ -193,10 +193,9 @@ union union_ep {
struct c4iw_ep ep;
};
-static int fill_res_ep_entry(struct sk_buff *msg,
- struct rdma_restrack_entry *res)
+int c4iw_fill_res_cm_id_entry(struct sk_buff *msg,
+ struct rdma_cm_id *cm_id)
{
- struct rdma_cm_id *cm_id = rdma_res_to_id(res);
struct nlattr *table_attr;
struct c4iw_ep_common *epcp;
struct c4iw_listen_ep *listen_ep = NULL;
@@ -486,7 +485,3 @@ err_cancel_table:
err:
return -EMSGSIZE;
}
-
-c4iw_restrack_func *c4iw_restrack_funcs[RDMA_RESTRACK_MAX] = {
- [RDMA_RESTRACK_CM_ID] = fill_res_ep_entry,
-};
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -75,6 +75,7 @@ struct ib_umem_odp;
struct ib_uqp_object;
struct ib_usrq_object;
struct ib_uwq_object;
+struct rdma_cm_id;
extern struct workqueue_struct *ib_wq;
extern struct workqueue_struct *ib_comp_wq;
@@ -2579,11 +2580,10 @@ struct ib_device_ops {
/**
* Allows rdma drivers to add their own restrack attributes.
*/
- int (*fill_res_entry)(struct sk_buff *msg,
- struct rdma_restrack_entry *entry);
int (*fill_res_mr_entry)(struct sk_buff *msg, struct ib_mr *ibmr);
int (*fill_res_cq_entry)(struct sk_buff *msg, struct ib_cq *ibcq);
int (*fill_res_qp_entry)(struct sk_buff *msg, struct ib_qp *ibqp);
+ int (*fill_res_cm_id_entry)(struct sk_buff *msg, struct rdma_cm_id *id);
/* Device lifecycle callbacks */
/*