From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1) server-digest SHA256) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 289DA606A31A for ; Wed, 21 Oct 2026 01:05:15 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=lists.infradead.org header.i=@lists.infradead.org header.a=rsa-sha256 header.s=bombadil.20210309 header.b=ycREuQ9q; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=CQn6XZEm DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Subject:Cc:To: From:Date:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Nek6SQB9HilcNqrUDKvbjnwNeRbszXlVW1qjIvvxAf8=; b=ycREuQ9qH1JJ0ALxLzBpt2zAnv AmKUDZ5NXc5++i0nS1IMeBF+jrXg+SFduNUW/7FBNVQUCcqNQfW6vQHMXwCPNgR/XLAptbnqYHZI1 HfIlS+qoWCaj/r0EjIo5T26AL0tR0tMDC5+nlDGgVcMU9F4P5DsKCSoTXdcKVG2Zu8k50Ygsn1FH1 mWliC9nVgPnTVRSKPxvEv6Y9ZjLPbgPoxGapZw+xZD0DHf3B2u8xdz7IOvAKjRu9S7PQih14EYPz2 yZpXmtHrSwJKTSXFPDg8h3QLArGkyrKc7upFiO5WL/A/lc5az0vgHg6OoRJIczuemaRoha1RqpdVS 7DCpUaJg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1xJKlN-0000000Asnq-1RQx; Wed, 21 Oct 2026 01:05:05 +0000 Received: from tor.source.kernel.org ([172.105.4.254]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1xJKlL-0000000Asnd-29dR for linux-arm-kernel@lists.infradead.org; Wed, 21 Oct 2026 01:05:03 +0000 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) by tor.source.kernel.org (Postfix) with ESMTP id B536A601FE; Wed, 21 Oct 2026 01:05:02 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id B860C1F000C9; Wed, 21 Oct 2026 01:05:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792544702; bh=Nek6SQB9HilcNqrUDKvbjnwNeRbszXlVW1qjIvvxAf8=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=CQn6XZEmx4JuBxOCkGUoJxghD6fgxKGGvSTb7ELHt1bjWPlVx48I+kyKIgnc0qr7c NhgbVZWa4Lwo67KLrbjDl6sjNbG4cTE3Y5zwpFpZVpbAbOITcS/Wfx9vxPUj1slJkb WQsgQF7PJo+NWG+9REo4JUnCIzps60aCpEq1pTNgCxknuRGsxQ/gOkPWoyRJ4hCZQJ oygMrQghn5CeQf526xtBNeHcN/kfyQUR9srbICRbEtVMDVVoumuUqSJ5TVXxHPjBdT nNgxYhhdyIj2yHGGFqz+jS84eNxdAe8gyzYkwDhnv3dL3FzNUVDWKKnYaMtQSYdKhy MV4yOooKiLIxA== Date: Tue, 20 Oct 2026 18:05:01 -0700 From: Jakub Kicinski To: Daniel Thompson Cc: Andrew Lunn , "David S. Miller" , Paolo Abeni , Maxime Coquelin , Alexandre Torgue , Alexei Starovoitov , Daniel Borkmann , Jesper Dangaard Brouer , John Fastabend , Stanislav Fomichev , Maxime Chevallier , Eric Dumazet , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland , Alex Elder , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, bpf@vger.kernel.org, linux-sunxi@lists.linux.dev Subject: Re: [PATCH net-next v3 0/2] net: stmmac: Avoid freeing and re-requesting IRQ during XDP set prog Message-ID: <20261020180501.59a77f38@kernel.org> In-Reply-To: <20261015-tc956x-stmmac-no_irq_teardown-v3-0-8189870be545@riscstar.com> References: <20261015-tc956x-stmmac-no_irq_teardown-v3-0-8189870be545@riscstar.com> X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" X-Spam-Status: No, score=-6.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Thu, 15 Oct 2026 15:55:00 +0100 Daniel Thompson wrote: > Currently stmmac will run a full cycle of IRQ tear down and setup when > setting up a new XDP program. This makes tuning TSN systems difficult > because whenever a new XDP program is installed then the irq threads will > be stopped and restarted which will undo any thread tuning. Series does not apply