From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9AC21A94A; Tue, 8 Apr 2025 11:48:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744112902; cv=none; b=il4e6u8C8q6lYfRY++mb9ypuzCVrUxjRXCsHME3U+1TOSYr7mzpk04CW7wu3khAOp0Fy4Z2+KuEKzSH6NqplqaRU7guNpC1YoJIWgnDyRn49t31LdDwIUtqGbgn+vY1n6lQd4bAD9p2nZLxs2DsTzjQTXOuaum/R61bQmX2OS3I= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744112902; c=relaxed/simple; bh=HRzaQXydfC+kJhfXoFNcRtk3odnlKOOwiVFfQ0Jtxqk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=bU2aSzew2I2O0hIP7CjeqzNErL9KLNOdP1UuA3hnrW5kuCOLRB4FIFnX2u4pwvNBsNPxrVM6K2l+7hepqW30H79BNooGo7sLCsPmrTdhHmDrbmkm+2NSfZIQn3SNdmF4xctVG4G1+up+qD8qpuIn/YCMWdfryYaVqar89Q6p7RE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=WpyWjTG1; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="WpyWjTG1" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 28952C4CEE7; Tue, 8 Apr 2025 11:48:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1744112902; bh=HRzaQXydfC+kJhfXoFNcRtk3odnlKOOwiVFfQ0Jtxqk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=WpyWjTG1HZXStM8VaFNIfGqWw/j83m2v0Y8QqoOeBE7znXxwVzr4cVLYCh8j9bDfn f8/a55ZhflgSa6LKB6hLobv1TMXRAsN5qv+q/SO7d48NZg4MdeX6iwhaXT0rO8BScu uaqX/r+ITZl6YriF/eqvGlB7GdhLqbm4Bpe+9F+M= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Nikita Shubin , Dave Jiang , Jon Mason , Sasha Levin Subject: [PATCH 5.15 239/279] ntb: intel: Fix using link status DBs Date: Tue, 8 Apr 2025 12:50:22 +0200 Message-ID: <20250408104832.837457193@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250408104826.319283234@linuxfoundation.org> References: <20250408104826.319283234@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Nikita Shubin [ Upstream commit 8144e9c8f30fb23bb736a5d24d5c9d46965563c4 ] Make sure we are not using DB's which were remapped for link status. Fixes: f6e51c354b60 ("ntb: intel: split out the gen3 code") Signed-off-by: Nikita Shubin Reviewed-by: Dave Jiang Signed-off-by: Jon Mason Signed-off-by: Sasha Levin --- drivers/ntb/hw/intel/ntb_hw_gen3.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/ntb/hw/intel/ntb_hw_gen3.c b/drivers/ntb/hw/intel/ntb_hw_gen3.c index ffcfc3e02c353..a5aa96a31f4a6 100644 --- a/drivers/ntb/hw/intel/ntb_hw_gen3.c +++ b/drivers/ntb/hw/intel/ntb_hw_gen3.c @@ -215,6 +215,9 @@ static int gen3_init_ntb(struct intel_ntb_dev *ndev) } ndev->db_valid_mask = BIT_ULL(ndev->db_count) - 1; + /* Make sure we are not using DB's used for link status */ + if (ndev->hwerr_flags & NTB_HWERR_MSIX_VECTOR32_BAD) + ndev->db_valid_mask &= ~ndev->db_link_mask; ndev->reg->db_iowrite(ndev->db_valid_mask, ndev->self_mmio + -- 2.39.5