From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5F79C2D0BF for ; Tue, 10 Dec 2019 21:05:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8EE0324680 for ; Tue, 10 Dec 2019 21:05:37 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576011937; bh=pFS7/13JJX6dO6lO1moac4r+EqYfl0x/LCkLPyn44F0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=Gq6JCcNwfEVeQHrcoetZUSQJzgBmaM+0MndxzrLTM6EQFX3py6nb6Ow02nUoXrGmZ 6H02h1576NhEajaD1LfRn5O4z+Kq+8Awlr1efmT0gAD+4AEwTnXhNHGnR74mX5uhI0 wT529KIrG4vQyKzuzkvsEQk4PU8y03L8i9JwOTWY= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727077AbfLJVFd (ORCPT ); Tue, 10 Dec 2019 16:05:33 -0500 Received: from mail.kernel.org ([198.145.29.99]:49856 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727436AbfLJVEk (ORCPT ); Tue, 10 Dec 2019 16:04:40 -0500 Received: from sasha-vm.mshome.net (c-73-47-72-35.hsd1.nh.comcast.net [73.47.72.35]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 25B3A24682; Tue, 10 Dec 2019 21:04:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576011879; bh=pFS7/13JJX6dO6lO1moac4r+EqYfl0x/LCkLPyn44F0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=f5lfPx1CplLV0lJXEup5pKqI6wqI9y0uzlY0Q+EgL4VLa+zpJd/SFTTxE1t1Zn67C mCEE4CTi/H5ZojlpiHCn+HlgPzEaVkRlOLoKRsBLOXZZV3fjsZEdmLNnotpj8IwbAf SVLZ1M7x9uHMUZuxPGoY4+JNn8n+V6wAOSnU1Xbg= From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Max Gurtovoy , Sagi Grimberg , Jason Gunthorpe , Sasha Levin , linux-rdma@vger.kernel.org Subject: [PATCH AUTOSEL 5.4 031/350] IB/iser: bound protection_sg size by data_sg size Date: Tue, 10 Dec 2019 15:58:43 -0500 Message-Id: <20191210210402.8367-31-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191210210402.8367-1-sashal@kernel.org> References: <20191210210402.8367-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Max Gurtovoy [ Upstream commit 7718cf03c3ce4b6ebd90107643ccd01c952a1fce ] In case we don't set the sg_prot_tablesize, the scsi layer assign the default size (65535 entries). We should limit this size since we should take into consideration the underlaying device capability. This cap is considered when calculating the sg_tablesize. Otherwise, for example, we can get that /sys/block/sdb/queue/max_segments is 128 and /sys/block/sdb/queue/max_integrity_segments is 65535. Link: https://lore.kernel.org/r/1569359027-10987-1-git-send-email-maxg@mellanox.com Signed-off-by: Max Gurtovoy Reviewed-by: Sagi Grimberg Signed-off-by: Jason Gunthorpe Signed-off-by: Sasha Levin --- drivers/infiniband/ulp/iser/iscsi_iser.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/infiniband/ulp/iser/iscsi_iser.c b/drivers/infiniband/ulp/iser/iscsi_iser.c index 2e72fc5af1573..c4c015c604465 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -646,6 +646,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep, if (ib_conn->pi_support) { u32 sig_caps = ib_dev->attrs.sig_prot_cap; + shost->sg_prot_tablesize = shost->sg_tablesize; scsi_host_set_prot(shost, iser_dif_prot_caps(sig_caps)); scsi_host_set_guard(shost, SHOST_DIX_GUARD_IP | SHOST_DIX_GUARD_CRC); -- 2.20.1