From: Saeed Mahameed <saeedm@mellanox.com>
To: Saeed Mahameed <saeedm@mellanox.com>,
Leon Romanovsky <leonro@mellanox.com>
Cc: netdev@vger.kernel.org, linux-rdma@vger.kernel.org,
Bodong Wang <bodong@mellanox.com>, Eli Cohen <eli@mellanox.com>,
Or Gerlitz <ogerlitz@mellanox.com>
Subject: [PATCH mlx5-next 06/15] net/mlx5: Add query host params command
Date: Tue, 12 Feb 2019 22:55:37 -0800 [thread overview]
Message-ID: <20190213065546.3013-7-saeedm@mellanox.com> (raw)
In-Reply-To: <20190213065546.3013-1-saeedm@mellanox.com>
From: Bodong Wang <bodong@mellanox.com>
The QUERY_HOST_PARAMS command is used by an Embedded CPU Physical
Function (ECPF) driver to identify and retrieve information about the
PF on the host side. E.g, number of virtual functions and PCI BDF.
The number of VFs can be changed on the fly, a function is added to
query current number of VFs and will be used in downstream patches.
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Signed-off-by: Eli Cohen <eli@mellanox.com>
Reviewed-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Saeed Mahameed <saeedm@mellanox.com>
---
drivers/net/ethernet/mellanox/mlx5/core/cmd.c | 2 +
.../net/ethernet/mellanox/mlx5/core/ecpf.c | 27 ++++++++++++
.../net/ethernet/mellanox/mlx5/core/ecpf.h | 4 ++
include/linux/mlx5/mlx5_ifc.h | 41 +++++++++++++++++++
4 files changed, 74 insertions(+)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
index a25a8c6f938e..46d70eb2d2f7 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/cmd.c
@@ -316,6 +316,7 @@ static int mlx5_internal_err_ret_value(struct mlx5_core_dev *dev, u16 op,
case MLX5_CMD_OP_DESTROY_GENERAL_OBJECT:
case MLX5_CMD_OP_DEALLOC_MEMIC:
case MLX5_CMD_OP_PAGE_FAULT_RESUME:
+ case MLX5_CMD_OP_QUERY_HOST_PARAMS:
return MLX5_CMD_STAT_OK;
case MLX5_CMD_OP_QUERY_HCA_CAP:
@@ -627,6 +628,7 @@ const char *mlx5_command_str(int command)
MLX5_COMMAND_STR_CASE(QUERY_MODIFY_HEADER_CONTEXT);
MLX5_COMMAND_STR_CASE(ALLOC_MEMIC);
MLX5_COMMAND_STR_CASE(DEALLOC_MEMIC);
+ MLX5_COMMAND_STR_CASE(QUERY_HOST_PARAMS);
default: return "unknown command opcode";
}
}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c b/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c
index 1bcf8b8f9713..4746f2d28fb6 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ecpf.c
@@ -83,3 +83,30 @@ void mlx5_ec_cleanup(struct mlx5_core_dev *dev)
mlx5_peer_pf_cleanup(dev);
}
+
+static int mlx5_query_host_params_context(struct mlx5_core_dev *dev,
+ u32 *out, int outlen)
+{
+ u32 in[MLX5_ST_SZ_DW(query_host_params_in)] = {};
+
+ MLX5_SET(query_host_params_in, in, opcode,
+ MLX5_CMD_OP_QUERY_HOST_PARAMS);
+
+ return mlx5_cmd_exec(dev, in, sizeof(in), out, outlen);
+}
+
+int mlx5_query_host_params_num_vfs(struct mlx5_core_dev *dev, int *num_vf)
+{
+ u32 out[MLX5_ST_SZ_DW(query_host_params_out)] = {};
+ int err;
+
+ err = mlx5_query_host_params_context(dev, out, sizeof(out));
+ if (err)
+ return err;
+
+ *num_vf = MLX5_GET(query_host_params_out, out,
+ host_params_context.host_num_of_vfs);
+ mlx5_core_dbg(dev, "host_num_of_vfs %d\n", *num_vf);
+
+ return 0;
+}
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/ecpf.h b/drivers/net/ethernet/mellanox/mlx5/core/ecpf.h
index d3d7a00a02ac..346372df218f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/ecpf.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/ecpf.h
@@ -16,6 +16,7 @@ enum {
bool mlx5_read_embedded_cpu(struct mlx5_core_dev *dev);
int mlx5_ec_init(struct mlx5_core_dev *dev);
void mlx5_ec_cleanup(struct mlx5_core_dev *dev);
+int mlx5_query_host_params_num_vfs(struct mlx5_core_dev *dev, int *num_vf);
#else /* CONFIG_MLX5_ESWITCH */
@@ -23,6 +24,9 @@ static inline bool
mlx5_read_embedded_cpu(struct mlx5_core_dev *dev) { return false; }
static inline int mlx5_ec_init(struct mlx5_core_dev *dev) { return 0; }
static inline void mlx5_ec_cleanup(struct mlx5_core_dev *dev) {}
+static inline int
+mlx5_query_host_params_num_vfs(struct mlx5_core_dev *dev, int *num_vf)
+{ return -EOPNOTSUPP; }
#endif /* CONFIG_MLX5_ESWITCH */
diff --git a/include/linux/mlx5/mlx5_ifc.h b/include/linux/mlx5/mlx5_ifc.h
index 1b6d5a563a3a..565046830559 100644
--- a/include/linux/mlx5/mlx5_ifc.h
+++ b/include/linux/mlx5/mlx5_ifc.h
@@ -142,6 +142,7 @@ enum {
MLX5_CMD_OP_QUERY_XRQ_DC_PARAMS_ENTRY = 0x725,
MLX5_CMD_OP_SET_XRQ_DC_PARAMS_ENTRY = 0x726,
MLX5_CMD_OP_QUERY_XRQ_ERROR_PARAMS = 0x727,
+ MLX5_CMD_OP_QUERY_HOST_PARAMS = 0x740,
MLX5_CMD_OP_QUERY_VPORT_STATE = 0x750,
MLX5_CMD_OP_MODIFY_VPORT_STATE = 0x751,
MLX5_CMD_OP_QUERY_ESW_VPORT_CONTEXT = 0x752,
@@ -9522,4 +9523,44 @@ struct mlx5_ifc_mtrc_ctrl_bits {
u8 reserved_at_80[0x180];
};
+struct mlx5_ifc_host_params_context_bits {
+ u8 host_number[0x8];
+ u8 reserved_at_8[0x8];
+ u8 host_num_of_vfs[0x10];
+
+ u8 reserved_at_20[0x10];
+ u8 host_pci_bus[0x10];
+
+ u8 reserved_at_40[0x10];
+ u8 host_pci_device[0x10];
+
+ u8 reserved_at_60[0x10];
+ u8 host_pci_function[0x10];
+
+ u8 reserved_at_80[0x180];
+};
+
+struct mlx5_ifc_query_host_params_in_bits {
+ u8 opcode[0x10];
+ u8 reserved_at_10[0x10];
+
+ u8 reserved_at_20[0x10];
+ u8 op_mod[0x10];
+
+ u8 reserved_at_40[0x40];
+};
+
+struct mlx5_ifc_query_host_params_out_bits {
+ u8 status[0x8];
+ u8 reserved_at_8[0x18];
+
+ u8 syndrome[0x20];
+
+ u8 reserved_at_40[0x40];
+
+ struct mlx5_ifc_host_params_context_bits host_params_context;
+
+ u8 reserved_at_280[0x180];
+};
+
#endif /* MLX5_IFC_H */
--
2.20.1
next prev parent reply other threads:[~2019-02-13 6:56 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-13 6:55 [PATCH mlx5-next 00/15] mlx5-next updates (ECPF & 50Gbps per lane) Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 01/15] net/mlx5: Use void pointer as the type in address_of macro Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 02/15] net/mlx5: Use consistent vport num argument type Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 03/15] IB/mlx5: Use unified register/load function for uplink and VF vports Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 04/15] net/mlx5: Introduce Mellanox SmartNIC and modify page management logic Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 05/15] net/mlx5: Update enable HCA dependency Saeed Mahameed
2019-02-13 6:55 ` Saeed Mahameed [this message]
2019-02-13 6:55 ` [PATCH mlx5-next 07/15] net/mlx5: Add host params change event Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 08/15] net/mlx5: Provide an alternative VF upper bound for ECPF Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 09/15] net/mlx5: E-Switch, Normalize the name of uplink vport number Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 10/15] net/mlx5: Relocate vport macros to the vport header file Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 11/15] net/mlx5: E-Switch, Avoid magic numbers when initializing offloads mode Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 12/15] net/mlx5: Refactor queries to speed fields in Port Type and Speed register Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 13/15] net/mlx5: Add new fields to " Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 14/15] net/mlx5: Add support to ext_* fields introduced in " Saeed Mahameed
2019-02-13 6:55 ` [PATCH mlx5-next 15/15] IB/mlx5: Add support for 50Gbps per lane link modes Saeed Mahameed
2019-02-15 18:17 ` [PATCH mlx5-next 00/15] mlx5-next updates (ECPF & 50Gbps per lane) Saeed Mahameed
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190213065546.3013-7-saeedm@mellanox.com \
--to=saeedm@mellanox.com \
--cc=bodong@mellanox.com \
--cc=eli@mellanox.com \
--cc=leonro@mellanox.com \
--cc=linux-rdma@vger.kernel.org \
--cc=netdev@vger.kernel.org \
--cc=ogerlitz@mellanox.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox