From: Saeed Mahameed <saeed@kernel.org>
To: "David S. Miller" <davem@davemloft.net>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
Eric Dumazet <edumazet@google.com>
Cc: Saeed Mahameed <saeedm@nvidia.com>,
netdev@vger.kernel.org, Tariq Toukan <tariqt@nvidia.com>,
Jiri Pirko <jiri@nvidia.com>, Shay Drory <shayd@nvidia.com>
Subject: [net-next 11/15] net/mlx5: Relax mlx5_devlink_eswitch_get() return value checking
Date: Tue, 22 Aug 2023 22:10:08 -0700 [thread overview]
Message-ID: <20230823051012.162483-12-saeed@kernel.org> (raw)
In-Reply-To: <20230823051012.162483-1-saeed@kernel.org>
From: Jiri Pirko <jiri@nvidia.com>
If called from port ops, it is not needed to perform the checks in
mlx5_devlink_eswitch_get(). The reason is devlink port would not be
registered if the checks are not true. Introduce relaxed version
mlx5_devlink_eswitch_nocheck_get() and use it in port ops.
Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Reviewed-by: Shay Drory <shayd@nvidia.com>
Signed-off-by: Saeed Mahameed <saeedm@nvidia.com>
---
.../net/ethernet/mellanox/mlx5/core/eswitch.c | 21 ++++++++--
.../net/ethernet/mellanox/mlx5/core/eswitch.h | 6 ++-
.../mellanox/mlx5/core/eswitch_offloads.c | 39 ++++---------------
3 files changed, 29 insertions(+), 37 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
index 5368b33fde63..db1c2a076364 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.c
@@ -77,18 +77,31 @@ static int mlx5_eswitch_check(const struct mlx5_core_dev *dev)
return 0;
}
-struct mlx5_eswitch *mlx5_devlink_eswitch_get(struct devlink *devlink)
+static struct mlx5_eswitch *__mlx5_devlink_eswitch_get(struct devlink *devlink, bool check)
{
struct mlx5_core_dev *dev = devlink_priv(devlink);
int err;
- err = mlx5_eswitch_check(dev);
- if (err)
- return ERR_PTR(err);
+ if (check) {
+ err = mlx5_eswitch_check(dev);
+ if (err)
+ return ERR_PTR(err);
+ }
return dev->priv.eswitch;
}
+struct mlx5_eswitch *__must_check
+mlx5_devlink_eswitch_get(struct devlink *devlink)
+{
+ return __mlx5_devlink_eswitch_get(devlink, true);
+}
+
+struct mlx5_eswitch *mlx5_devlink_eswitch_nocheck_get(struct devlink *devlink)
+{
+ return __mlx5_devlink_eswitch_get(devlink, false);
+}
+
struct mlx5_vport *__must_check
mlx5_eswitch_get_vport(struct mlx5_eswitch *esw, u16 vport_num)
{
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
index 8d03d4fe6eec..9f94c3d6d6e5 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch.h
@@ -679,7 +679,11 @@ void mlx5e_tc_clean_fdb_peer_flows(struct mlx5_eswitch *esw);
MLX5_CAP_GEN_2((esw->dev), ec_vf_vport_base) +\
(last) - 1)
-struct mlx5_eswitch *mlx5_devlink_eswitch_get(struct devlink *devlink);
+struct mlx5_eswitch *__must_check
+mlx5_devlink_eswitch_get(struct devlink *devlink);
+
+struct mlx5_eswitch *mlx5_devlink_eswitch_nocheck_get(struct devlink *devlink);
+
struct mlx5_vport *__must_check
mlx5_eswitch_get_vport(struct mlx5_eswitch *esw, u16 vport_num);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 87cc6ad2e17f..23b562f07c68 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -3634,7 +3634,7 @@ static bool esw_offloads_devlink_ns_eq_netdev_ns(struct devlink *devlink)
struct net *devl_net, *netdev_net;
struct mlx5_eswitch *esw;
- esw = mlx5_devlink_eswitch_get(devlink);
+ esw = mlx5_devlink_eswitch_nocheck_get(devlink);
netdev_net = dev_net(esw->dev->mlx5e_res.uplink_netdev);
devl_net = devlink_net(devlink);
@@ -4222,13 +4222,10 @@ int mlx5_devlink_port_fn_hw_addr_get(struct devlink_port *port,
u8 *hw_addr, int *hw_addr_len,
struct netlink_ext_ack *extack)
{
- struct mlx5_eswitch *esw;
+ struct mlx5_eswitch *esw = mlx5_devlink_eswitch_nocheck_get(port->devlink);
struct mlx5_vport *vport;
u16 vport_num;
- esw = mlx5_devlink_eswitch_get(port->devlink);
- if (IS_ERR(esw))
- return PTR_ERR(esw);
vport_num = mlx5_esw_devlink_port_index_to_vport_num(port->index);
@@ -4249,15 +4246,9 @@ int mlx5_devlink_port_fn_hw_addr_set(struct devlink_port *port,
const u8 *hw_addr, int hw_addr_len,
struct netlink_ext_ack *extack)
{
- struct mlx5_eswitch *esw;
+ struct mlx5_eswitch *esw = mlx5_devlink_eswitch_nocheck_get(port->devlink);
u16 vport_num;
- esw = mlx5_devlink_eswitch_get(port->devlink);
- if (IS_ERR(esw)) {
- NL_SET_ERR_MSG_MOD(extack, "Eswitch doesn't support set hw_addr");
- return PTR_ERR(esw);
- }
-
vport_num = mlx5_esw_devlink_port_index_to_vport_num(port->index);
return mlx5_eswitch_set_vport_mac(esw, vport_num, hw_addr);
}
@@ -4277,13 +4268,9 @@ mlx5_devlink_port_fn_get_vport(struct devlink_port *port, struct mlx5_eswitch *e
int mlx5_devlink_port_fn_migratable_get(struct devlink_port *port, bool *is_enabled,
struct netlink_ext_ack *extack)
{
- struct mlx5_eswitch *esw;
+ struct mlx5_eswitch *esw = mlx5_devlink_eswitch_nocheck_get(port->devlink);
struct mlx5_vport *vport;
- esw = mlx5_devlink_eswitch_get(port->devlink);
- if (IS_ERR(esw))
- return PTR_ERR(esw);
-
if (!MLX5_CAP_GEN(esw->dev, migration)) {
NL_SET_ERR_MSG_MOD(extack, "Device doesn't support migration");
return -EOPNOTSUPP;
@@ -4304,17 +4291,13 @@ int mlx5_devlink_port_fn_migratable_get(struct devlink_port *port, bool *is_enab
int mlx5_devlink_port_fn_migratable_set(struct devlink_port *port, bool enable,
struct netlink_ext_ack *extack)
{
+ struct mlx5_eswitch *esw = mlx5_devlink_eswitch_nocheck_get(port->devlink);
int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
- struct mlx5_eswitch *esw;
struct mlx5_vport *vport;
void *query_ctx;
void *hca_caps;
int err;
- esw = mlx5_devlink_eswitch_get(port->devlink);
- if (IS_ERR(esw))
- return PTR_ERR(esw);
-
if (!MLX5_CAP_GEN(esw->dev, migration)) {
NL_SET_ERR_MSG_MOD(extack, "Device doesn't support migration");
return -EOPNOTSUPP;
@@ -4368,13 +4351,9 @@ int mlx5_devlink_port_fn_migratable_set(struct devlink_port *port, bool enable,
int mlx5_devlink_port_fn_roce_get(struct devlink_port *port, bool *is_enabled,
struct netlink_ext_ack *extack)
{
- struct mlx5_eswitch *esw;
+ struct mlx5_eswitch *esw = mlx5_devlink_eswitch_nocheck_get(port->devlink);
struct mlx5_vport *vport;
- esw = mlx5_devlink_eswitch_get(port->devlink);
- if (IS_ERR(esw))
- return PTR_ERR(esw);
-
vport = mlx5_devlink_port_fn_get_vport(port, esw);
if (IS_ERR(vport)) {
NL_SET_ERR_MSG_MOD(extack, "Invalid port");
@@ -4390,18 +4369,14 @@ int mlx5_devlink_port_fn_roce_get(struct devlink_port *port, bool *is_enabled,
int mlx5_devlink_port_fn_roce_set(struct devlink_port *port, bool enable,
struct netlink_ext_ack *extack)
{
+ struct mlx5_eswitch *esw = mlx5_devlink_eswitch_nocheck_get(port->devlink);
int query_out_sz = MLX5_ST_SZ_BYTES(query_hca_cap_out);
- struct mlx5_eswitch *esw;
struct mlx5_vport *vport;
void *query_ctx;
void *hca_caps;
u16 vport_num;
int err;
- esw = mlx5_devlink_eswitch_get(port->devlink);
- if (IS_ERR(esw))
- return PTR_ERR(esw);
-
vport = mlx5_devlink_port_fn_get_vport(port, esw);
if (IS_ERR(vport)) {
NL_SET_ERR_MSG_MOD(extack, "Invalid port");
--
2.41.0
next prev parent reply other threads:[~2023-08-23 5:10 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-23 5:09 [pull request][net-next 00/15] mlx5 updates 2023-08-22 Saeed Mahameed
2023-08-23 5:09 ` [net-next 01/15] net/mlx5: Rework devlink port alloc/free into init/cleanup Saeed Mahameed
2023-08-24 13:40 ` patchwork-bot+netdevbpf
2023-08-23 5:09 ` [net-next 02/15] net/mlx5: Push out SF devlink port init and cleanup code to separate helpers Saeed Mahameed
2023-08-23 5:10 ` [net-next 03/15] net/mlx5: Push devlink port PF/VF init/cleanup calls out of devlink_port_register/unregister() Saeed Mahameed
2023-08-23 5:10 ` [net-next 04/15] net/mlx5: Allow mlx5_esw_offloads_devlink_port_register() to register SFs Saeed Mahameed
2023-08-23 5:10 ` [net-next 05/15] net/mlx5: Introduce mlx5_eswitch_load/unload_sf_vport() and use it from SF code Saeed Mahameed
2023-08-23 5:10 ` [net-next 06/15] net/mlx5: Remove no longer used mlx5_esw_offloads_sf_vport_enable/disable() Saeed Mahameed
2023-08-23 5:10 ` [net-next 07/15] net/mlx5: Don't register ops for non-PF/VF/SF port and avoid checks in ops Saeed Mahameed
2023-08-23 5:10 ` [net-next 08/15] net/mlx5: Embed struct devlink_port into driver structure Saeed Mahameed
2023-08-23 5:10 ` [net-next 09/15] net/mlx5: Reduce number of vport lookups passing vport pointer instead of index Saeed Mahameed
2023-08-23 5:10 ` [net-next 10/15] net/mlx5: Return -EOPNOTSUPP in mlx5_devlink_port_fn_migratable_set() directly Saeed Mahameed
2023-08-23 5:10 ` Saeed Mahameed [this message]
2023-08-23 5:10 ` [net-next 12/15] net/mlx5: Check vhca_resource_manager capability in each op and add extack msg Saeed Mahameed
2023-08-23 5:10 ` [net-next 13/15] net/mlx5: Store vport in struct mlx5_devlink_port and use it in port ops Saeed Mahameed
2023-08-23 5:10 ` [net-next 14/15] net/mlx5e: Support IPsec upper protocol selector field offload for RX Saeed Mahameed
2023-08-23 5:10 ` [net-next 15/15] net/mlx5e: Support IPsec upper TCP protocol selector Saeed Mahameed
2023-08-24 2:09 ` [pull request][net-next 00/15] mlx5 updates 2023-08-22 Jakub Kicinski
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=20230823051012.162483-12-saeed@kernel.org \
--to=saeed@kernel.org \
--cc=davem@davemloft.net \
--cc=edumazet@google.com \
--cc=jiri@nvidia.com \
--cc=kuba@kernel.org \
--cc=netdev@vger.kernel.org \
--cc=pabeni@redhat.com \
--cc=saeedm@nvidia.com \
--cc=shayd@nvidia.com \
--cc=tariqt@nvidia.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.