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 D00532D613; Wed, 23 Apr 2025 14:46:52 +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=1745419612; cv=none; b=gaTfKS4GMbTqfcjk1D7exzOvSyo6qe8+yaoT5bVDbJCMCfLvt/6HaFs/MGGW9Zy49ClYStFSgqJtD4XnIErj2mtvexTIZgdkjozyQk26Pi4uc3OaE2wAoTdW9hyILg7bMhiOICAHzL3lubkl5sRbJ4EDc1krXWv7+lFF3JWMxR4= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745419612; c=relaxed/simple; bh=UK/Iw/WZQVeldeE7eRoSIrNC76edMHPotmY03H1zn3A=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UhalzfO/Ssse5prcIn9lF+Gnil5cXCEmzN28+dCddC2I9oBNAUpJowrQGGJ49Xjcs3oGMHHIe2t4JfwQ74fMZi+IiPsdLfPuRC1TMP2+8Z37If+akWbpjsynttue7GbOaaLDIl8pVB71an1loeQa0WMX5L/feLk6WQnmZ8IoLqI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=SpY+mUNX; 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="SpY+mUNX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 642B2C4CEE2; Wed, 23 Apr 2025 14:46:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1745419612; bh=UK/Iw/WZQVeldeE7eRoSIrNC76edMHPotmY03H1zn3A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=SpY+mUNX0YNS1juWHU+PM/N2UyNeT5UpBysaCLU3vH6jyQ1zVDQyJ94cwCk69yhuQ CYzw3dBKIX1eqmyiSMWQguw+SUMSdVhzLAltJeYgqPJvW45RBQS6qj+m7cfQkl7C/t NccE/OBUwxZymvUbjKSc53Hm2f0uJcK+80w8idPM= 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 6.12 020/223] RDMA/hns: Fix wrong maximum DMA segment size Date: Wed, 23 Apr 2025 16:41:32 +0200 Message-ID: <20250423142617.940737411@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250423142617.120834124@linuxfoundation.org> References: <20250423142617.120834124@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 6.12-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