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Date: Mon, 26 Feb 2018 12:36:08 -0800
From: Saeed Mahameed <saeedm@...lanox.com>
To: "David S. Miller" <davem@...emloft.net>,
Doug Ledford <dledford@...hat.com>,
Jason Gunthorpe <jgg@...lanox.com>
Cc: Leon Romanovsky <leonro@...lanox.com>,
Mark Bloch <markb@...lanox.com>,
Or Gerlitz <ogerlitz@...lanox.com>, netdev@...r.kernel.org,
linux-rdma@...r.kernel.org, Leon Romanovsky <leon@...nel.org>,
Saeed Mahameed <saeedm@...lanox.com>
Subject: [for-next 06/15] IB/mlx5: Add basic regiser/unregister representors code
From: Mark Bloch <markb@...lanox.com>
Create the basic infrastructure of registering and unregistering
IB representors. The load/unload callbacks are left empty and
proper implementation will be introduced in following patches.
Signed-off-by: Mark Bloch <markb@...lanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@...lanox.com>
Signed-off-by: Leon Romanovsky <leon@...nel.org>
Signed-off-by: Saeed Mahameed <saeedm@...lanox.com>
---
drivers/infiniband/hw/mlx5/Makefile | 1 +
drivers/infiniband/hw/mlx5/ib_rep.c | 104 +++++++++++++++++++++++++++++++++++
drivers/infiniband/hw/mlx5/ib_rep.h | 49 +++++++++++++++++
drivers/infiniband/hw/mlx5/main.c | 13 +++++
drivers/infiniband/hw/mlx5/mlx5_ib.h | 2 +
5 files changed, 169 insertions(+)
create mode 100644 drivers/infiniband/hw/mlx5/ib_rep.c
create mode 100644 drivers/infiniband/hw/mlx5/ib_rep.h
diff --git a/drivers/infiniband/hw/mlx5/Makefile b/drivers/infiniband/hw/mlx5/Makefile
index bc6299697dda..d42b922bede8 100644
--- a/drivers/infiniband/hw/mlx5/Makefile
+++ b/drivers/infiniband/hw/mlx5/Makefile
@@ -2,3 +2,4 @@ obj-$(CONFIG_MLX5_INFINIBAND) += mlx5_ib.o
mlx5_ib-y := main.o cq.o doorbell.o qp.o mem.o srq.o mr.o ah.o mad.o gsi.o ib_virt.o cmd.o cong.o
mlx5_ib-$(CONFIG_INFINIBAND_ON_DEMAND_PAGING) += odp.o
+mlx5_ib-$(CONFIG_MLX5_ESWITCH) += ib_rep.o
diff --git a/drivers/infiniband/hw/mlx5/ib_rep.c b/drivers/infiniband/hw/mlx5/ib_rep.c
new file mode 100644
index 000000000000..adf2439ddacb
--- /dev/null
+++ b/drivers/infiniband/hw/mlx5/ib_rep.c
@@ -0,0 +1,104 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/*
+ * Copyright (c) 2018 Mellanox Technologies. All rights reserved.
+ */
+
+#include "ib_rep.h"
+
+static int
+mlx5_ib_nic_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
+{
+ return 0;
+}
+
+static void
+mlx5_ib_nic_rep_unload(struct mlx5_eswitch_rep *rep)
+{
+}
+
+static int
+mlx5_ib_vport_rep_load(struct mlx5_core_dev *dev, struct mlx5_eswitch_rep *rep)
+{
+ return 0;
+}
+
+static void
+mlx5_ib_vport_rep_unload(struct mlx5_eswitch_rep *rep)
+{
+}
+
+static void *mlx5_ib_vport_get_proto_dev(struct mlx5_eswitch_rep *rep)
+{
+ return mlx5_ib_rep_to_dev(rep);
+}
+
+static void mlx5_ib_rep_register_vf_vports(struct mlx5_ib_dev *dev)
+{
+ struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;
+ int total_vfs = MLX5_TOTAL_VPORTS(dev->mdev);
+ int vport;
+
+ for (vport = 1; vport < total_vfs; vport++) {
+ struct mlx5_eswitch_rep_if rep_if = {};
+
+ rep_if.load = mlx5_ib_vport_rep_load;
+ rep_if.unload = mlx5_ib_vport_rep_unload;
+ rep_if.get_proto_dev = mlx5_ib_vport_get_proto_dev;
+ mlx5_eswitch_register_vport_rep(esw, vport, &rep_if, REP_IB);
+ }
+}
+
+static void mlx5_ib_rep_unregister_vf_vports(struct mlx5_ib_dev *dev)
+{
+ struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;
+ int total_vfs = MLX5_TOTAL_VPORTS(dev->mdev);
+ int vport;
+
+ for (vport = 1; vport < total_vfs; vport++)
+ mlx5_eswitch_unregister_vport_rep(esw, vport, REP_IB);
+}
+
+void mlx5_ib_register_vport_reps(struct mlx5_ib_dev *dev)
+{
+ struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;
+ struct mlx5_eswitch_rep_if rep_if = {};
+
+ rep_if.load = mlx5_ib_nic_rep_load;
+ rep_if.unload = mlx5_ib_nic_rep_unload;
+ rep_if.get_proto_dev = mlx5_ib_vport_get_proto_dev;
+ rep_if.priv = dev;
+
+ mlx5_eswitch_register_vport_rep(esw, 0, &rep_if, REP_IB);
+
+ mlx5_ib_rep_register_vf_vports(dev);
+}
+
+void mlx5_ib_unregister_vport_reps(struct mlx5_ib_dev *dev)
+{
+ struct mlx5_eswitch *esw = dev->mdev->priv.eswitch;
+
+ mlx5_ib_rep_unregister_vf_vports(dev); /* VFs vports */
+ mlx5_eswitch_unregister_vport_rep(esw, 0, REP_IB); /* UPLINK PF*/
+}
+
+u8 mlx5_ib_eswitch_mode(struct mlx5_eswitch *esw)
+{
+ return mlx5_eswitch_mode(esw);
+}
+
+struct mlx5_ib_dev *mlx5_ib_get_rep_ibdev(struct mlx5_eswitch *esw,
+ int vport_index)
+{
+ return mlx5_eswitch_get_proto_dev(esw, vport_index, REP_IB);
+}
+
+struct net_device *mlx5_ib_get_rep_netdev(struct mlx5_eswitch *esw,
+ int vport_index)
+{
+ return mlx5_eswitch_get_proto_dev(esw, vport_index, REP_ETH);
+}
+
+struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw, int vport)
+{
+ return mlx5_eswitch_vport_rep(esw, vport);
+}
diff --git a/drivers/infiniband/hw/mlx5/ib_rep.h b/drivers/infiniband/hw/mlx5/ib_rep.h
new file mode 100644
index 000000000000..64ab54b82820
--- /dev/null
+++ b/drivers/infiniband/hw/mlx5/ib_rep.h
@@ -0,0 +1,49 @@
+/* SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause) */
+/*
+ * Copyright (c) 2018 Mellanox Technologies. All rights reserved.
+ */
+
+#ifndef __MLX5_IB_REP_H__
+#define __MLX5_IB_REP_H__
+
+#include <linux/mlx5/eswitch.h>
+#include "mlx5_ib.h"
+
+#ifdef CONFIG_MLX5_ESWITCH
+u8 mlx5_ib_eswitch_mode(struct mlx5_eswitch *esw);
+struct mlx5_ib_dev *mlx5_ib_get_rep_ibdev(struct mlx5_eswitch *esw,
+ int vport_index);
+struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw,
+ int vport_index);
+void mlx5_ib_register_vport_reps(struct mlx5_ib_dev *dev);
+void mlx5_ib_unregister_vport_reps(struct mlx5_ib_dev *dev);
+#else /* CONFIG_MLX5_ESWITCH */
+static inline u8 mlx5_ib_eswitch_mode(struct mlx5_eswitch *esw)
+{
+ return SRIOV_NONE;
+}
+
+static inline
+struct mlx5_ib_dev *mlx5_ib_get_rep_ibdev(struct mlx5_eswitch *esw,
+ int vport_index)
+{
+ return NULL;
+}
+
+static inline
+struct mlx5_eswitch_rep *mlx5_ib_vport_rep(struct mlx5_eswitch *esw,
+ int vport_index)
+{
+ return NULL;
+}
+
+static inline void mlx5_ib_register_vport_reps(struct mlx5_ib_dev *dev) {}
+static inline void mlx5_ib_unregister_vport_reps(struct mlx5_ib_dev *dev) {}
+#endif
+
+static inline
+struct mlx5_ib_dev *mlx5_ib_rep_to_dev(struct mlx5_eswitch_rep *rep)
+{
+ return (struct mlx5_ib_dev *)rep->rep_if[REP_IB].priv;
+}
+#endif /* __MLX5_IB_REP_H__ */
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 4236c8086820..725322268530 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -57,6 +57,7 @@
#include <linux/in.h>
#include <linux/etherdevice.h>
#include "mlx5_ib.h"
+#include "ib_rep.h"
#include "cmd.h"
#define DRIVER_NAME "mlx5_ib"
@@ -4905,6 +4906,18 @@ static int mlx5_ib_stage_class_attr_init(struct mlx5_ib_dev *dev)
return 0;
}
+static int mlx5_ib_stage_rep_reg_init(struct mlx5_ib_dev *dev)
+{
+ mlx5_ib_register_vport_reps(dev);
+
+ return 0;
+}
+
+static void mlx5_ib_stage_rep_reg_cleanup(struct mlx5_ib_dev *dev)
+{
+ mlx5_ib_unregister_vport_reps(dev);
+}
+
static void __mlx5_ib_remove(struct mlx5_ib_dev *dev,
const struct mlx5_ib_profile *profile,
int stage)
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index eafb9751daf6..ec798c6371be 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -743,6 +743,7 @@ enum mlx5_ib_stages {
MLX5_IB_STAGE_UMR_RESOURCES,
MLX5_IB_STAGE_DELAY_DROP,
MLX5_IB_STAGE_CLASS_ATTR,
+ MLX5_IB_STAGE_REP_REG,
MLX5_IB_STAGE_MAX,
};
@@ -807,6 +808,7 @@ struct mlx5_ib_dev {
struct mlx5_sq_bfreg fp_bfreg;
struct mlx5_ib_delay_drop delay_drop;
const struct mlx5_ib_profile *profile;
+ struct mlx5_eswitch_rep *rep;
/* protect the user_td */
struct mutex lb_mutex;
--
2.14.3
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