From: Ido Schimmel <idosch@mellanox.com>
To: "netdev@vger.kernel.org" <netdev@vger.kernel.org>
Cc: "davem@davemloft.net" <davem@davemloft.net>,
Jiri Pirko <jiri@mellanox.com>, mlxsw <mlxsw@mellanox.com>,
Ido Schimmel <idosch@mellanox.com>
Subject: [PATCH net-next 05/14] mlxsw: spectrum_acl: Push code start/end from mlxsw_sp_acl_tcam_vregion_migrate()
Date: Thu, 28 Feb 2019 06:59:19 +0000 [thread overview]
Message-ID: <20190228065850.7471-6-idosch@mellanox.com> (raw)
In-Reply-To: <20190228065850.7471-1-idosch@mellanox.com>
From: Jiri Pirko <jiri@mellanox.com>
Push code from the beginning and end of function
mlxsw_sp_acl_tcam_vregion_migrate() into rehash_start()/end() functions.
Then all the things needed to be done before and after the actual
migration process will be grouped together.
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
---
.../mellanox/mlxsw/spectrum_acl_tcam.c | 74 +++++++++----------
1 file changed, 35 insertions(+), 39 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c
index fa204003bc84..cf901a1504c4 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_acl_tcam.c
@@ -1277,59 +1277,24 @@ mlxsw_sp_acl_tcam_vregion_migrate(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_tcam_vregion *vregion,
struct mlxsw_sp_acl_tcam_rehash_ctx *ctx)
{
- unsigned int priority = mlxsw_sp_acl_tcam_vregion_prio(vregion);
- struct mlxsw_sp_acl_tcam_region *region2, *unused_region;
int err;
trace_mlxsw_sp_acl_tcam_vregion_migrate(mlxsw_sp, vregion);
-
- region2 = mlxsw_sp_acl_tcam_region_create(mlxsw_sp, vregion->tcam,
- vregion, ctx->hints_priv);
- if (IS_ERR(region2)) {
- err = PTR_ERR(region2);
- goto out;
- }
-
- vregion->region2 = region2;
- err = mlxsw_sp_acl_tcam_group_region_attach(mlxsw_sp,
- vregion->region->group,
- region2, priority,
- vregion->region);
- if (err)
- goto err_group_region_attach;
-
mutex_lock(&vregion->lock);
err = mlxsw_sp_acl_tcam_vchunk_migrate_all(mlxsw_sp, vregion);
if (!vregion->failed_rollback) {
if (!err) {
/* In case of successful migration, region2 is used and
- * the original is unused.
- */
- unused_region = vregion->region;
- vregion->region = vregion->region2;
- } else {
- /* In case of failure during migration, the original
- * region is still used.
+ * the original is unused. So swap them.
*/
- unused_region = vregion->region2;
+ swap(vregion->region, vregion->region2);
}
- mutex_unlock(&vregion->lock);
- vregion->region2 = NULL;
- mlxsw_sp_acl_tcam_group_region_detach(mlxsw_sp, unused_region);
- mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, unused_region);
- } else {
- mutex_unlock(&vregion->lock);
+ /* vregion->region2 contains pointer to unused region now. */
}
- goto out;
-
-err_group_region_attach:
- vregion->region2 = NULL;
- mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, region2);
-out:
+ mutex_unlock(&vregion->lock);
trace_mlxsw_sp_acl_tcam_vregion_migrate_end(mlxsw_sp, vregion);
-
return err;
}
@@ -1339,7 +1304,10 @@ mlxsw_sp_acl_tcam_vregion_rehash_start(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_tcam_rehash_ctx *ctx)
{
const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops;
+ unsigned int priority = mlxsw_sp_acl_tcam_vregion_prio(vregion);
+ struct mlxsw_sp_acl_tcam_region *region2;
void *hints_priv;
+ int err;
trace_mlxsw_sp_acl_tcam_vregion_rehash(mlxsw_sp, vregion);
if (vregion->failed_rollback)
@@ -1349,9 +1317,31 @@ mlxsw_sp_acl_tcam_vregion_rehash_start(struct mlxsw_sp *mlxsw_sp,
if (IS_ERR(hints_priv))
return PTR_ERR(hints_priv);
+ region2 = mlxsw_sp_acl_tcam_region_create(mlxsw_sp, vregion->tcam,
+ vregion, hints_priv);
+ if (IS_ERR(region2)) {
+ err = PTR_ERR(region2);
+ goto err_region_create;
+ }
+
+ vregion->region2 = region2;
+ err = mlxsw_sp_acl_tcam_group_region_attach(mlxsw_sp,
+ vregion->region->group,
+ region2, priority,
+ vregion->region);
+ if (err)
+ goto err_group_region_attach;
+
ctx->hints_priv = hints_priv;
return 0;
+
+err_group_region_attach:
+ vregion->region2 = NULL;
+ mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, region2);
+err_region_create:
+ ops->region_rehash_hints_put(hints_priv);
+ return err;
}
static void
@@ -1359,8 +1349,14 @@ mlxsw_sp_acl_tcam_vregion_rehash_end(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_acl_tcam_vregion *vregion,
struct mlxsw_sp_acl_tcam_rehash_ctx *ctx)
{
+ struct mlxsw_sp_acl_tcam_region *unused_region = vregion->region2;
const struct mlxsw_sp_acl_tcam_ops *ops = mlxsw_sp->acl_tcam_ops;
+ if (!vregion->failed_rollback) {
+ vregion->region2 = NULL;
+ mlxsw_sp_acl_tcam_group_region_detach(mlxsw_sp, unused_region);
+ mlxsw_sp_acl_tcam_region_destroy(mlxsw_sp, unused_region);
+ }
ops->region_rehash_hints_put(ctx->hints_priv);
ctx->hints_priv = NULL;
}
--
2.20.1
next prev parent reply other threads:[~2019-02-28 6:59 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-02-28 6:59 [PATCH net-next 00/14] mlxsw: spectrum_acl: Split rehash work into chunks Ido Schimmel
2019-02-28 6:59 ` [PATCH net-next 01/14] mlxsw: spectrum_acl: Push rehash dw struct into rehash sub-struct Ido Schimmel
2019-02-28 6:59 ` [PATCH net-next 02/14] mlxsw: spectrum_acl: Don't migrate already migrated entry Ido Schimmel
2019-02-28 6:59 ` [PATCH net-next 03/14] mlxsw: spectrum_acl: Introduce new rehash context struct and save hint_priv there Ido Schimmel
2019-02-28 6:59 ` [PATCH net-next 04/14] mlxsw: spectrum_acl: Push rehash start/end code into separate functions Ido Schimmel
2019-02-28 6:59 ` Ido Schimmel [this message]
2019-02-28 6:59 ` [PATCH net-next 06/14] mlxsw: spectrum_acl: assign vregion->region by the newly created region Ido Schimmel
2019-02-28 6:59 ` [PATCH net-next 07/14] mlxsw: spectrum_acl: assign vchunk->chunk by the newly created chunk Ido Schimmel
2019-02-28 6:59 ` [PATCH net-next 08/14] mlxsw: spectrum_acl: Rename variables in mlxsw_sp_acl_tcam_ventry_migrate() Ido Schimmel
2019-02-28 6:59 ` [PATCH net-next 09/14] mlxsw: spectrum_acl: Put this_is_rollback to rehash context struct Ido Schimmel
2019-02-28 6:59 ` [PATCH net-next 10/14] mlxsw: spectrum_acl: Put vchunk migrate start/end code into separate functions Ido Schimmel
2019-02-28 6:59 ` [PATCH net-next 11/14] mlxsw: spectrum_acl: Do rollback as another call to mlxsw_sp_acl_tcam_vchunk_migrate_all() Ido Schimmel
2019-02-28 6:59 ` [PATCH net-next 12/14] mlxsw: spectrum_acl: Allow to interrupt/continue rehash work Ido Schimmel
2019-02-28 6:59 ` [PATCH net-next 13/14] mlxsw: spectrum_acl: Remember where to continue rehash migration Ido Schimmel
2019-02-28 6:59 ` [PATCH net-next 14/14] mlxsw: spectrum_acl: Make mlxsw_sp_acl_tcam_vregion_rehash() return void Ido Schimmel
2019-03-02 5:44 ` [PATCH net-next 00/14] mlxsw: spectrum_acl: Split rehash work into chunks David Miller
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