From: Jakub Kicinski <kuba@kernel.org>
To: Daniel Zahka <daniel.zahka@gmail.com>
Cc: "David S. Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Paolo Abeni <pabeni@redhat.com>, Simon Horman <horms@kernel.org>,
Donald Hunter <donald.hunter@gmail.com>,
Boris Pismenny <borisp@nvidia.com>,
Saeed Mahameed <saeedm@nvidia.com>,
Leon Romanovsky <leon@kernel.org>,
Tariq Toukan <tariqt@nvidia.com>, Mark Bloch <mbloch@nvidia.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
Shuah Khan <shuah@kernel.org>,
Willem de Bruijn <willemdebruijn.kernel@gmail.com>,
netdev@vger.kernel.org, linux-kselftest@vger.kernel.org
Subject: Re: [PATCH net-next 7/9] mlx5: psp: implement deferred tx key deletion
Date: Fri, 6 Feb 2026 20:30:26 -0800 [thread overview]
Message-ID: <20260206203026.2bb64661@kernel.org> (raw)
In-Reply-To: <20260204-psp-v1-7-5f034e2dfa36@gmail.com>
On Wed, 04 Feb 2026 07:20:11 -0800 Daniel Zahka wrote:
> Implement the deferred tx key deletion api. In the case of mlx5,
> mlx5e_psp_tx_grace_begin() records the number of wqes retired on each
> tx queue, and then mlx5e_psp_tx_grace_end() returns 0 only if
> all tx queues have advanced a full ring cycle past the point where
> they were snapshotted.
Either Friday night enlightenment or I'm very tired -- but I wonder if
we can do with BQL, without touching the driver at all?
struct dql {
/* Fields accessed in enqueue path (dql_queued) */
unsigned int num_queued; /* Total ever queued */
...
/* Fields accessed only by completion path (dql_completed) */
unsigned int num_completed; /* Total ever completed */
...
};
These are free running counters of how many bytes were queued to
the driver and how many driver finished xmit'ing.
next prev parent reply other threads:[~2026-02-07 4:30 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-02-04 15:20 [PATCH net-next 0/9] psp: support rekeying psp protected tcp connections Daniel Zahka
2026-02-04 15:20 ` [PATCH net-next 1/9] psp: support rx rekey operation Daniel Zahka
2026-02-07 4:24 ` Jakub Kicinski
2026-02-07 4:32 ` [net-next,1/9] " Jakub Kicinski
2026-02-04 15:20 ` [PATCH net-next 2/9] psp: move code from psp_sock_assoc_set_tx() into helper functions Daniel Zahka
2026-02-04 20:46 ` Willem de Bruijn
2026-02-04 15:20 ` [PATCH net-next 3/9] psp: support tx rekey operation Daniel Zahka
2026-02-04 15:20 ` [PATCH net-next 4/9] psp: refactor psp_dev_tx_key_del() Daniel Zahka
2026-02-04 20:46 ` Willem de Bruijn
2026-02-04 15:20 ` [PATCH net-next 5/9] psp: add driver api for deferred tx key deletion Daniel Zahka
2026-02-04 15:20 ` [PATCH net-next 6/9] psp: add core tracked stats for deferred " Daniel Zahka
2026-02-04 15:20 ` [PATCH net-next 7/9] mlx5: psp: implement deferred tx " Daniel Zahka
2026-02-07 4:30 ` Jakub Kicinski [this message]
2026-02-07 4:32 ` [net-next,7/9] " Jakub Kicinski
2026-02-04 15:20 ` [PATCH net-next 8/9] selftests: drv-net: psp: lift psp connection setup out of _data_basic_send() testcase Daniel Zahka
2026-02-04 20:49 ` Willem de Bruijn
2026-02-04 15:20 ` [PATCH net-next 9/9] selftests: drv-net: psp: add tests for rekeying connections Daniel Zahka
2026-02-04 20:45 ` [PATCH net-next 0/9] psp: support rekeying psp protected tcp connections Willem de Bruijn
2026-02-04 21:43 ` Daniel Zahka
2026-02-07 4:18 ` Jakub Kicinski
2026-02-07 4:21 ` Jakub Kicinski
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