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From: Eric Joyner <eric.joyner@amd.com>
To: <netdev@vger.kernel.org>
Cc: Brett Creeley <brett.creeley@amd.com>,
	Andrew Lunn <andrew+netdev@lunn.ch>,
	"David S. Miller" <davem@davemloft.net>,
	"Eric Dumazet" <edumazet@google.com>,
	Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
	Prabu Thayalan <prabu.ponrajthayalan@amd.com>,
	"Nikhil P. Rao" <nikhil.rao@amd.com>,
	Eric Joyner <eric.joyner@amd.com>
Subject: [PATCH net 0/2] ionic: fix completion descriptor access
Date: Tue, 11 Aug 2026 12:50:37 -0700	[thread overview]
Message-ID: <20260811195039.1315045-1-eric.joyner@amd.com> (raw)

The first patch adds the missing dma_rmb() between the completion
publish checks and the reads of the descriptor payloads, suggested by
the Sashiko review from [1] for the second patch.

The second locates the completion within its slot from cq->desc_size
rather than a fixed stride, which is necessary when IONIC_Q_F_2X_CQ_DESC
(double-sized completion descriptors) is used (e.g. for hardware
timestamps).

[1] https://lore.kernel.org/netdev/20260507155928.2537928-1-kuba@kernel.org/

Eric Joyner (1):
  ionic: add missing dma_rmb() after the completion publish check

Prabu Thayalan (1):
  ionic: fix completion descriptor access with 2x desc size

 .../net/ethernet/pensando/ionic/ionic_main.c  |  4 +++
 .../net/ethernet/pensando/ionic/ionic_txrx.c  | 31 +++++++++++--------
 2 files changed, 22 insertions(+), 13 deletions(-)


base-commit: 53658c6f3682967a5e76ed4bc7462c4bdcddaec3
-- 
2.43.0


             reply	other threads:[~2026-08-11 19:51 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-11 19:50 Eric Joyner [this message]
2026-08-11 19:50 ` [PATCH net 1/2] ionic: add missing dma_rmb() after the completion publish check Eric Joyner
2026-08-11 19:50 ` [PATCH net 2/2] ionic: fix completion descriptor access with 2x desc size Eric Joyner

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