From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1792682155; b=cJhy6OgVAVPQPfMrh/P92Le7W1Mt19Gv4AbOKHlaPrYIQfPevOvaRiShCstxrBIZwzP1 TDZ1ZGUQW2VXb5/Q9fKG4tMQTGRwYjEA0B50OOUziuO7/sQ0eaV5BhsE1CbO8n/tVNK2Z NC8YF2xg48qOXza51fB3jvClyQdGpt5vdr/6ibE1lAdLDgNQEu7MjC0d+txqzCoqux+su C6/2QLCcWt+SFVXwPQZ9hkJydfWJIZKS3egaZFAsiJfSP1afOyoMM1UbJX0ARtpmDDlXF tcsVuIq7iS3p2QQ1E9ULPOjYN3r66L6ewNEdSdni/wHrp/eOub8OUcg0MONz3k1qOmQ== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1792682155; h=Received:DKIM-Signature:Message-ID:From:Subject:Reply-To:To:Cc: In-Reply-To:References:Content-Type:Content-Transfer-Encoding:Date; bh=bThFfLAbI0VSxgNEsECuDzG5HK3j2ASdXtx6wJapPZY=; b=vGsl+eAhrGjXFcN/vYt+qB1WMBCQfg9ciBFVmm1TQjeyeC9ASGtqX9OMOG/zZWHlL6rZ tEV6wpxaUV7iRORPvhrAJmJEw1CXkQE3qhGRiDOVtEOcl+lddqpqUQz/2LqdLSy04QnOP 3FJvNcxgSrosqxomF+4r1cTl9Bl4vIr/kc6vxjeBk9ccY2T73/D+pGDJnBBmuWXDi/e2J DsiBBaT7DN+fBLAq7oJszMUTBcINtdOnMgfeFzu1aoob0RXYJ5D/3psVYK5gzvY/4TlC3 +fQdDD1mrbGj18XkbKtdNg070w3BMpMrykPkl40lo0qTrzw2R7gKk9uojUuDdqdf4Zg== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Ak8da4Oz; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 78AA9606ACE3 for ; Thu, 22 Oct 2026 15:15:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=Ak8da4Oz Received: by smtp.kernel.org (Postfix) with ESMTPSA id 39E251F01828; Thu, 22 Oct 2026 15:15:55 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1792682155; bh=bThFfLAbI0VSxgNEsECuDzG5HK3j2ASdXtx6wJapPZY=; h=From:Subject:Reply-To:To:Cc:In-Reply-To:References:Date; b=Ak8da4OzdcQqeYLjznjgXDvfwNMfJfckzG5UbMqhcVuHkAO8bgSe+b+m4bO+1IFGD ph6RzcLSq5x6EAx49dpKtyd6CLWwGAo6BPZWpHOEcu+bG5RV01Ho4MEwX0VOJ3PWX4 EmFxggbO6g66kLnYW+qYge5BR+hVdly9bHwaraQRvZsNj+XMTB1a2p1soj3ABaBsDz BADcgB6h1o7VAvse3P8jPTcq77laWFqmFst+Bw1F5DliQ3nkbdvAltsYDoHDmJzZW9 VQBgJrfbntR1ycOTbEyEX0Vs9nEjJ1vyxbFhR0lh/K4WS5vkOTpYlWUBoVpGJKwy59 cIWOX8YdbFF/Q== Message-ID: From: sashiko-bot@kernel.org Subject: Re: [PATCH net-next v9 1/4] net: mana: prepare HWC ownership for safe reinitialization Reply-To: sashiko-reviews@lists.linux.dev To: "Wei Hu" Cc: linux-rdma@vger.kernel.org In-Reply-To: References: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Date: Thu, 22 Oct 2026 15:15:54 +0000 X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list > From: Long Li >=20 > Dynamic HWC queue sizing tears down the bootstrap queues and establishes a > second channel before publishing it. Prepare the existing HWC ownership a= nd > teardown paths so that sequence cannot free or reuse state still reachable > by either the PF or an EQ handler. >=20 > The shared-memory aperture carries one request at a time. Serialize the > complete ESTABLISH_HWC and DESTROY_HWC transactions, including possession > polling and response validation. Record setup_active immediately before t= he > MMIO submission and clear it only after DESTROY_HWC is acknowledged. >=20 > Treat an unacknowledged destroy as retained PF ownership. Fence the HWC EQ > and withdraw its CQ from dispatch, but keep all queue memory and wrappers > for a later teardown retry. A new channel creation retries that retained > [ ... ] > Link: https://lore.kernel.org/r/178910960115.219967.13830871915506436112@= kernel.org > Link: https://lore.kernel.org/r/179196575238.434549.10775387794024020898@= kernel.org > Link: https://lore.kernel.org/r/sashiko-outbox-170992@kernel.org > Signed-off-by: Long Li > Signed-off-by: Wei Hu Sashiko has reviewed this patch and found no issues. --=20 Sashiko AI review =C2=B7 https://sashiko.dev/#/patchset/cover.1792679388.gi= t.weh@linux.microsoft.com?part=3D1