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 06C4F27FD5B; Wed, 23 Apr 2025 14:48:49 +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=1745419729; cv=none; b=g3TSLDICaeChDhPLPO7WbVdknOC3ClKJYqUfuIGuOZoFLqQ+Fl52A7lUScf3K2eZiEJGiuLkckHkCtFCnThkuDUiLTKuVyLtFHQLhs80ZPDf0AyX/J+ZwKhEnn17ObMfwOvaNnnoXVC/egX4nON16b+s/0nTcQymwirSqMvLq/Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745419729; c=relaxed/simple; bh=mHVgr6uPtwCV57zu6StomSpIbHky9K2Ul6J1BR6b+ws=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SLAqCSysyMUD+GKssl3lnl39AyHhbMLxwUYw3WMKZ1hkKYIqhTUnudovj5W7kYU2vNToyJM4im3LM37AQpcruAQNPT3FBaqjBz+PjgZBitvqHP9Js6cV2dwYv+auYbcUEv15QyQZHwisgNi/agApl1SFIITVOa7bfJz9bazO+HM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=jpFX8uz4; 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="jpFX8uz4" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8E7DCC4CEE8; Wed, 23 Apr 2025 14:48:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745419728; bh=mHVgr6uPtwCV57zu6StomSpIbHky9K2Ul6J1BR6b+ws=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=jpFX8uz4x8evqJNLoFANvTNrGclpRxcwyDYBcFaiwU/Kv/aBAEIhyDVXFtkNCw4/u 3lahPaeN9l59Im+3FdjImpeEV/g4lWL1zPSazuJkXE/9dmH/RL/jpTcHwZckLyZEJK zyoYjuE+WjS3P2P5puXQ6ewgjqDsTM6d0TjfchvU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Chengchang Tang , Junxian Huang , Jason Gunthorpe , Sasha Levin Subject: [PATCH 6.14 017/241] RDMA/hns: Fix wrong maximum DMA segment size Date: Wed, 23 Apr 2025 16:41:21 +0200 Message-ID: <20250423142621.221794247@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250423142620.525425242@linuxfoundation.org> References: <20250423142620.525425242@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 6.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Chengchang Tang [ Upstream commit 9beb2c91fb86e0be70a5833c6730441fa3c9efa8 ] Set maximum DMA segment size to 2G instead of UINT_MAX due to HW limit. Fixes: e0477b34d9d1 ("RDMA: Explicitly pass in the dma_device to ib_register_device") Link: https://patch.msgid.link/r/20250327114724.3454268-3-huangjunxian6@hisilicon.com Signed-off-by: Chengchang Tang Signed-off-by: Junxian Huang Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- drivers/infiniband/hw/hns/hns_roce_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_main.c b/drivers/infiniband/hw/hns/hns_roce_main.c index cf89a8db4f64c..8d0b63d4b50a6 100644 --- a/drivers/infiniband/hw/hns/hns_roce_main.c +++ b/drivers/infiniband/hw/hns/hns_roce_main.c @@ -763,7 +763,7 @@ static int hns_roce_register_device(struct hns_roce_dev *hr_dev) if (ret) return ret; } - dma_set_max_seg_size(dev, UINT_MAX); + dma_set_max_seg_size(dev, SZ_2G); ret = ib_register_device(ib_dev, "hns_%d", dev); if (ret) { dev_err(dev, "ib_register_device failed!\n"); -- 2.39.5