From: Parav Pandit <parav@mellanox.com>
To: alex.williamson@redhat.com, davem@davemloft.net,
kvm@vger.kernel.org, netdev@vger.kernel.org
Cc: saeedm@mellanox.com, kwankhede@nvidia.com, leon@kernel.org,
cohuck@redhat.com, jiri@mellanox.com, linux-rdma@vger.kernel.org,
Vu Pham <vuhuong@mellanox.com>, Parav Pandit <parav@mellanox.com>
Subject: [PATCH net-next 03/19] net/mlx5: Introduce SF table framework
Date: Thu, 7 Nov 2019 10:08:18 -0600 [thread overview]
Message-ID: <20191107160834.21087-3-parav@mellanox.com> (raw)
In-Reply-To: <20191107160834.21087-1-parav@mellanox.com>
From: Vu Pham <vuhuong@mellanox.com>
Introduce a SF table for SF life cycle for a device which supports SF
capability.
This SF table framework is used in subsequent patches.
Reviewed-by: Saeed Mahameed <saeedm@mellanox.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Vu Pham <vuhuong@mellanox.com>
---
.../net/ethernet/mellanox/mlx5/core/Makefile | 4 ++
drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 2 +
.../net/ethernet/mellanox/mlx5/core/main.c | 5 ++
.../ethernet/mellanox/mlx5/core/meddev/sf.c | 62 +++++++++++++++++++
.../ethernet/mellanox/mlx5/core/meddev/sf.h | 15 +++++
5 files changed, 88 insertions(+)
create mode 100644 drivers/net/ethernet/mellanox/mlx5/core/meddev/sf.c
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/Makefile b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
index a6f390fdb971..b13a0c91662b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/Makefile
+++ b/drivers/net/ethernet/mellanox/mlx5/core/Makefile
@@ -74,3 +74,7 @@ mlx5_core-$(CONFIG_MLX5_SW_STEERING) += steering/dr_domain.o steering/dr_table.o
steering/dr_ste.o steering/dr_send.o \
steering/dr_cmd.o steering/dr_fw.o \
steering/dr_action.o steering/fs_dr.o
+#
+# Mdev basic
+#
+mlx5_core-$(CONFIG_MLX5_MDEV) += meddev/sf.o
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index ea934cd02448..e9a326939f5e 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -448,6 +448,7 @@ static int mlx5_internal_err_ret_value(struct mlx5_core_dev *dev, u16 op,
case MLX5_CMD_OP_ALLOC_MEMIC:
case MLX5_CMD_OP_MODIFY_XRQ:
case MLX5_CMD_OP_RELEASE_XRQ_ERROR:
+ case MLX5_CMD_OP_QUERY_SF_PARTITION:
*status = MLX5_DRIVER_STATUS_ABORTED;
*synd = MLX5_DRIVER_SYND;
return -EIO;
@@ -474,6 +475,7 @@ const char *mlx5_command_str(int command)
MLX5_COMMAND_STR_CASE(QUERY_ISSI);
MLX5_COMMAND_STR_CASE(SET_ISSI);
MLX5_COMMAND_STR_CASE(SET_DRIVER_VERSION);
+ MLX5_COMMAND_STR_CASE(QUERY_SF_PARTITION);
MLX5_COMMAND_STR_CASE(CREATE_MKEY);
MLX5_COMMAND_STR_CASE(QUERY_MKEY);
MLX5_COMMAND_STR_CASE(DESTROY_MKEY);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/main.c b/drivers/net/ethernet/mellanox/mlx5/core/main.c
index c9a091d3226c..174ade250f62 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/main.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/main.c
@@ -577,6 +577,11 @@ static int handle_hca_cap(struct mlx5_core_dev *dev)
num_vhca_ports,
MLX5_CAP_GEN_MAX(dev, num_vhca_ports));
+#ifdef CONFIG_MLX5_MDEV
+ if (MLX5_CAP_GEN_MAX(dev, sf))
+ MLX5_SET(cmd_hca_cap, set_hca_cap, sf, 1);
+#endif
+
err = set_caps(dev, set_ctx, set_sz,
MLX5_SET_HCA_CAP_OP_MOD_GENERAL_DEVICE);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/meddev/sf.c b/drivers/net/ethernet/mellanox/mlx5/core/meddev/sf.c
new file mode 100644
index 000000000000..3324cc53efe3
--- /dev/null
+++ b/drivers/net/ethernet/mellanox/mlx5/core/meddev/sf.c
@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+// Copyright (c) 2018-19 Mellanox Technologies
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include "sf.h"
+#include "mlx5_core.h"
+
+static int
+mlx5_cmd_query_sf_partitions(struct mlx5_core_dev *mdev, u32 *out, int outlen)
+{
+ u32 in[MLX5_ST_SZ_DW(query_sf_partitions_in)] = {};
+
+ /* Query sf partitions */
+ MLX5_SET(query_sf_partitions_in, in, opcode,
+ MLX5_CMD_OP_QUERY_SF_PARTITION);
+ return mlx5_cmd_exec(mdev, in, sizeof(in), out, outlen);
+}
+
+int mlx5_sf_table_init(struct mlx5_core_dev *dev,
+ struct mlx5_sf_table *sf_table)
+{
+ void *sf_parts;
+ int n_support;
+ int outlen;
+ u32 *out;
+ int err;
+
+ outlen = MLX5_ST_SZ_BYTES(query_sf_partitions_out) + MLX5_ST_SZ_BYTES(sf_partition);
+ out = kvzalloc(outlen, GFP_KERNEL);
+ if (!out)
+ return -ENOMEM;
+
+ mutex_init(&sf_table->lock);
+ /* SFs BAR is implemented in PCI BAR2 */
+ sf_table->base_address = pci_resource_start(dev->pdev, 2);
+
+ /* Query first partition */
+ err = mlx5_cmd_query_sf_partitions(dev, out, outlen);
+ if (err)
+ goto free_outmem;
+
+ n_support = MLX5_GET(query_sf_partitions_out, out, num_sf_partitions);
+ sf_parts = MLX5_ADDR_OF(query_sf_partitions_out, out, sf_partition);
+ sf_table->max_sfs = 1 << MLX5_GET(sf_partition, sf_parts, log_num_sf);
+ sf_table->log_sf_bar_size =
+ MLX5_GET(sf_partition, sf_parts, log_sf_bar_size);
+
+ mlx5_core_dbg(dev, "supported partitions(%d)\n", n_support);
+ mlx5_core_dbg(dev, "SF_part(0) log_num_sf(%d) log_sf_bar_size(%d)\n",
+ sf_table->max_sfs, sf_table->log_sf_bar_size);
+
+free_outmem:
+ kvfree(out);
+ return err;
+}
+
+void mlx5_sf_table_cleanup(struct mlx5_core_dev *dev,
+ struct mlx5_sf_table *sf_table)
+{
+ mutex_destroy(&sf_table->lock);
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/meddev/sf.h b/drivers/net/ethernet/mellanox/mlx5/core/meddev/sf.h
index 0cd28506e339..434c193a06d0 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/meddev/sf.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/meddev/sf.h
@@ -7,6 +7,14 @@
#include <linux/mlx5/driver.h>
#include <linux/mlx5/eswitch.h>
+struct mlx5_sf_table {
+ phys_addr_t base_address;
+ /* Protects sfs life cycle and sf enable/disable flows */
+ struct mutex lock;
+ u16 max_sfs;
+ u16 log_sf_bar_size;
+};
+
static inline bool mlx5_core_is_sf_supported(const struct mlx5_core_dev *dev)
{
return MLX5_ESWITCH_MANAGER(dev) &&
@@ -14,4 +22,11 @@ static inline bool mlx5_core_is_sf_supported(const struct mlx5_core_dev *dev)
MLX5_CAP_GEN(dev, sf);
}
+#ifdef CONFIG_MLX5_MDEV
+int mlx5_sf_table_init(struct mlx5_core_dev *dev,
+ struct mlx5_sf_table *sf_table);
+void mlx5_sf_table_cleanup(struct mlx5_core_dev *dev,
+ struct mlx5_sf_table *sf_table);
+#endif
+
#endif
--
2.19.2
next prev parent reply other threads:[~2019-11-07 16:09 UTC|newest]
Thread overview: 132+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-07 16:04 [PATCH net-next 00/19] Mellanox, mlx5 sub function support Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 01/19] net/mlx5: E-switch, Move devlink port close to eswitch port Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 02/19] net/mlx5: E-Switch, Add SF vport, vport-rep support Parav Pandit
2019-11-07 16:08 ` Parav Pandit [this message]
2019-11-07 16:08 ` [PATCH net-next 04/19] net/mlx5: Introduce SF life cycle APIs to allocate/free Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 05/19] net/mlx5: E-Switch, Enable/disable SF's vport during SF life cycle Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 06/19] net/mlx5: Add support for mediated devices in switchdev mode Parav Pandit
2019-11-08 10:32 ` Jiri Pirko
2019-11-08 16:03 ` Parav Pandit
2019-11-08 16:22 ` Jiri Pirko
2019-11-08 16:29 ` Parav Pandit
2019-11-08 18:01 ` Jiri Pirko
2019-11-08 18:04 ` Jiri Pirko
2019-11-08 18:21 ` Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 07/19] vfio/mdev: Introduce sha1 based mdev alias Parav Pandit
2019-11-08 11:04 ` Jiri Pirko
2019-11-08 15:59 ` Parav Pandit
2019-11-08 16:28 ` Jiri Pirko
2019-11-08 11:10 ` Cornelia Huck
2019-11-08 16:03 ` Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 08/19] vfio/mdev: Make mdev alias unique among all mdevs Parav Pandit
2019-11-08 10:49 ` Jiri Pirko
2019-11-08 15:13 ` Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 09/19] vfio/mdev: Expose mdev alias in sysfs tree Parav Pandit
2019-11-08 13:22 ` Jiri Pirko
2019-11-08 18:03 ` Alex Williamson
2019-11-08 18:16 ` Jiri Pirko
2019-11-07 16:08 ` [PATCH net-next 10/19] vfio/mdev: Introduce an API mdev_alias Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 11/19] vfio/mdev: Improvise mdev life cycle and parent removal scheme Parav Pandit
2019-11-08 13:01 ` Cornelia Huck
2019-11-08 16:12 ` Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 12/19] devlink: Introduce mdev port flavour Parav Pandit
2019-11-07 20:38 ` Jakub Kicinski
2019-11-07 21:03 ` Parav Pandit
2019-11-08 1:17 ` Jakub Kicinski
2019-11-08 1:44 ` Parav Pandit
2019-11-08 2:20 ` Jakub Kicinski
2019-11-08 2:31 ` Parav Pandit
2019-11-08 9:46 ` Jiri Pirko
2019-11-08 15:45 ` Parav Pandit
2019-11-08 16:31 ` Jiri Pirko
2019-11-08 16:43 ` Parav Pandit
2019-11-08 18:11 ` Jiri Pirko
2019-11-08 18:23 ` Parav Pandit
2019-11-08 18:34 ` Jiri Pirko
2019-11-08 18:56 ` Parav Pandit
2019-11-08 9:30 ` Jiri Pirko
2019-11-08 15:41 ` Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 13/19] net/mlx5: Register SF devlink port Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 14/19] net/mlx5: Share irqs between SFs and parent PCI device Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 15/19] net/mlx5: Add load/unload routines for SF driver binding Parav Pandit
2019-11-08 9:48 ` Jiri Pirko
2019-11-08 11:13 ` Jiri Pirko
2019-11-07 16:08 ` [PATCH net-next 16/19] net/mlx5: Implement dma ops and params for mediated device Parav Pandit
2019-11-07 20:42 ` Jakub Kicinski
2019-11-07 21:30 ` Parav Pandit
2019-11-08 1:16 ` Jakub Kicinski
2019-11-08 6:37 ` Christoph Hellwig
2019-11-08 15:29 ` Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 17/19] net/mlx5: Add mdev driver to bind to mdev devices Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 18/19] Documentation: net: mlx5: Add mdev usage documentation Parav Pandit
2019-11-07 16:08 ` [PATCH net-next 19/19] mtty: Optionally support mtty alias Parav Pandit
2019-11-08 6:26 ` Leon Romanovsky
2019-11-08 10:45 ` Jiri Pirko
2019-11-08 15:08 ` Parav Pandit
2019-11-08 15:15 ` Jiri Pirko
2019-11-08 13:46 ` Cornelia Huck
2019-11-08 15:10 ` Parav Pandit
2019-11-08 15:28 ` Cornelia Huck
2019-11-08 15:30 ` Parav Pandit
2019-11-08 17:54 ` Alex Williamson
2019-11-08 9:51 ` [PATCH net-next 01/19] net/mlx5: E-switch, Move devlink port close to eswitch port Jiri Pirko
2019-11-08 15:50 ` Parav Pandit
2019-11-07 17:03 ` [PATCH net-next 00/19] Mellanox, mlx5 sub function support Leon Romanovsky
2019-11-07 20:10 ` Parav Pandit
2019-11-08 6:20 ` Leon Romanovsky
2019-11-08 15:01 ` Parav Pandit
2019-11-07 20:32 ` Jakub Kicinski
2019-11-07 20:52 ` Parav Pandit
2019-11-08 1:16 ` Jakub Kicinski
2019-11-08 1:49 ` Parav Pandit
2019-11-08 2:12 ` Jakub Kicinski
2019-11-08 12:12 ` Jiri Pirko
2019-11-08 14:40 ` Jason Gunthorpe
2019-11-08 15:40 ` Parav Pandit
2019-11-08 19:12 ` Jakub Kicinski
2019-11-08 20:12 ` Jason Gunthorpe
2019-11-08 20:20 ` Parav Pandit
2019-11-08 20:32 ` Jason Gunthorpe
2019-11-08 20:52 ` gregkh
2019-11-08 20:34 ` Alex Williamson
2019-11-08 21:05 ` Jason Gunthorpe
2019-11-08 21:19 ` gregkh
2019-11-08 21:52 ` Alex Williamson
2019-11-08 22:48 ` Parav Pandit
2019-11-09 0:57 ` Jason Gunthorpe
2019-11-09 17:41 ` Jakub Kicinski
2019-11-10 19:04 ` Jason Gunthorpe
2019-11-10 19:48 ` Parav Pandit
2019-11-11 14:17 ` Jiri Pirko
2019-11-11 14:58 ` Parav Pandit
2019-11-11 15:06 ` Jiri Pirko
2019-11-19 4:51 ` Parav Pandit
2019-11-09 0:12 ` Jason Gunthorpe
2019-11-09 0:45 ` Parav Pandit
2019-11-11 2:19 ` Jason Wang
2019-11-08 21:45 ` Jakub Kicinski
2019-11-09 0:44 ` Jason Gunthorpe
2019-11-09 8:46 ` gregkh
2019-11-09 11:18 ` Jiri Pirko
2019-11-09 17:28 ` Jakub Kicinski
2019-11-10 9:16 ` gregkh
2019-11-09 17:27 ` Jakub Kicinski
2019-11-10 9:18 ` gregkh
2019-11-11 3:46 ` Jakub Kicinski
2019-11-11 5:18 ` Parav Pandit
2019-11-11 13:30 ` Jiri Pirko
2019-11-11 14:14 ` gregkh
2019-11-11 14:37 ` Jiri Pirko
2019-11-10 19:37 ` Jason Gunthorpe
2019-11-11 3:57 ` Jakub Kicinski
2019-11-08 16:06 ` Parav Pandit
2019-11-08 19:06 ` Jakub Kicinski
2019-11-08 19:34 ` Parav Pandit
2019-11-08 19:48 ` Jakub Kicinski
2019-11-08 19:41 ` Jiri Pirko
2019-11-08 20:40 ` Parav Pandit
2019-11-08 21:21 ` Jakub Kicinski
2019-11-08 21:39 ` Jiri Pirko
2019-11-08 21:51 ` Jakub Kicinski
2019-11-08 22:21 ` Jiri Pirko
2019-11-07 23:57 ` David Miller
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