From: Aurelien Aptel <aaptel@nvidia.com>
To: linux-nvme@lists.infradead.org, netdev@vger.kernel.org,
sagi@grimberg.me, hch@lst.de, kbusch@kernel.org, axboe@fb.com,
chaitanyak@nvidia.com, davem@davemloft.net, kuba@kernel.org
Cc: Boris Pismenny <borisp@nvidia.com>,
aaptel@nvidia.com, aurelien.aptel@gmail.com, smalin@nvidia.com,
malin1024@gmail.com, ogerlitz@nvidia.com, yorayz@nvidia.com,
galshalom@nvidia.com, mgurtovoy@nvidia.com
Subject: [PATCH v15 14/20] net/mlx5e: TCP flow steering for nvme-tcp acceleration
Date: Tue, 12 Sep 2023 09:59:43 +0000 [thread overview]
Message-ID: <20230912095949.5474-15-aaptel@nvidia.com> (raw)
In-Reply-To: <20230912095949.5474-1-aaptel@nvidia.com>
From: Boris Pismenny <borisp@nvidia.com>
Both nvme-tcp and tls acceleration require tcp flow steering.
Add reference counter to share TCP flow steering structure.
Signed-off-by: Boris Pismenny <borisp@nvidia.com>
Signed-off-by: Ben Ben-Ishay <benishay@nvidia.com>
Signed-off-by: Or Gerlitz <ogerlitz@nvidia.com>
Signed-off-by: Yoray Zack <yorayz@nvidia.com>
Signed-off-by: Aurelien Aptel <aaptel@nvidia.com>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
---
.../ethernet/mellanox/mlx5/core/en_accel/fs_tcp.c | 12 +++++++++++-
1 file changed, 11 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/fs_tcp.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/fs_tcp.c
index c7d191f66ad1..82a9e2a4f58b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/fs_tcp.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/fs_tcp.c
@@ -14,6 +14,7 @@ enum accel_fs_tcp_type {
struct mlx5e_accel_fs_tcp {
struct mlx5e_flow_table tables[ACCEL_FS_TCP_NUM_TYPES];
struct mlx5_flow_handle *default_rules[ACCEL_FS_TCP_NUM_TYPES];
+ refcount_t user_count;
};
static enum mlx5_traffic_types fs_accel2tt(enum accel_fs_tcp_type i)
@@ -361,6 +362,9 @@ void mlx5e_accel_fs_tcp_destroy(struct mlx5e_flow_steering *fs)
if (!accel_tcp)
return;
+ if (!refcount_dec_and_test(&accel_tcp->user_count))
+ return;
+
accel_fs_tcp_disable(fs);
for (i = 0; i < ACCEL_FS_TCP_NUM_TYPES; i++)
@@ -372,12 +376,17 @@ void mlx5e_accel_fs_tcp_destroy(struct mlx5e_flow_steering *fs)
int mlx5e_accel_fs_tcp_create(struct mlx5e_flow_steering *fs)
{
- struct mlx5e_accel_fs_tcp *accel_tcp;
+ struct mlx5e_accel_fs_tcp *accel_tcp = mlx5e_fs_get_accel_tcp(fs);
int i, err;
if (!MLX5_CAP_FLOWTABLE_NIC_RX(mlx5e_fs_get_mdev(fs), ft_field_support.outer_ip_version))
return -EOPNOTSUPP;
+ if (accel_tcp) {
+ refcount_inc(&accel_tcp->user_count);
+ return 0;
+ }
+
accel_tcp = kzalloc(sizeof(*accel_tcp), GFP_KERNEL);
if (!accel_tcp)
return -ENOMEM;
@@ -393,6 +402,7 @@ int mlx5e_accel_fs_tcp_create(struct mlx5e_flow_steering *fs)
if (err)
goto err_destroy_tables;
+ refcount_set(&accel_tcp->user_count, 1);
return 0;
err_destroy_tables:
--
2.34.1
next prev parent reply other threads:[~2023-09-12 10:01 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-09-12 9:59 [PATCH v15 00/20] nvme-tcp receive offloads Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 01/20] net: Introduce direct data placement tcp offload Aurelien Aptel
2023-09-12 16:17 ` David Ahern
2023-09-21 7:43 ` Aurelien Aptel
2023-09-21 12:33 ` David Ahern
2023-09-21 13:02 ` Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 02/20] netlink: add new family to manage ULP_DDP enablement and stats Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 03/20] iov_iter: skip copy if src == dst for direct data placement Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 04/20] net/tls,core: export get_netdev_for_sock Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 05/20] nvme-tcp: Add DDP offload control path Aurelien Aptel
2023-09-12 13:24 ` Sagi Grimberg
2023-09-13 9:10 ` Aurelien Aptel
2023-09-13 10:46 ` Sagi Grimberg
2023-09-18 12:53 ` Aurelien Aptel
2023-09-13 10:49 ` Sagi Grimberg
2023-09-18 18:30 ` Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 06/20] nvme-tcp: Add DDP data-path Aurelien Aptel
2023-09-13 10:51 ` Sagi Grimberg
2023-09-18 18:26 ` Aurelien Aptel
2023-09-19 7:04 ` Sagi Grimberg
2023-09-20 8:39 ` Aurelien Aptel
2023-09-20 10:11 ` Sagi Grimberg
2023-09-20 16:04 ` Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 07/20] nvme-tcp: RX DDGST offload Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 08/20] nvme-tcp: Deal with netdevice DOWN events Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 09/20] Documentation: add ULP DDP offload documentation Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 10/20] net/mlx5e: Rename from tls to transport static params Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 11/20] net/mlx5e: Refactor ico sq polling to get budget Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 12/20] net/mlx5: Add NVMEoTCP caps, HW bits, 128B CQE and enumerations Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 13/20] net/mlx5e: NVMEoTCP, offload initialization Aurelien Aptel
2023-09-12 9:59 ` Aurelien Aptel [this message]
2023-09-12 9:59 ` [PATCH v15 15/20] net/mlx5e: NVMEoTCP, use KLM UMRs for buffer registration Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 16/20] net/mlx5e: NVMEoTCP, queue init/teardown Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 17/20] net/mlx5e: NVMEoTCP, ddp setup and resync Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 18/20] net/mlx5e: NVMEoTCP, async ddp invalidation Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 19/20] net/mlx5e: NVMEoTCP, data-path for DDP+DDGST offload Aurelien Aptel
2023-09-12 9:59 ` [PATCH v15 20/20] net/mlx5e: NVMEoTCP, statistics Aurelien Aptel
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=20230912095949.5474-15-aaptel@nvidia.com \
--to=aaptel@nvidia.com \
--cc=aurelien.aptel@gmail.com \
--cc=axboe@fb.com \
--cc=borisp@nvidia.com \
--cc=chaitanyak@nvidia.com \
--cc=davem@davemloft.net \
--cc=galshalom@nvidia.com \
--cc=hch@lst.de \
--cc=kbusch@kernel.org \
--cc=kuba@kernel.org \
--cc=linux-nvme@lists.infradead.org \
--cc=malin1024@gmail.com \
--cc=mgurtovoy@nvidia.com \
--cc=netdev@vger.kernel.org \
--cc=ogerlitz@nvidia.com \
--cc=sagi@grimberg.me \
--cc=smalin@nvidia.com \
--cc=yorayz@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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).