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 2C8B2C00454 for ; Tue, 10 Dec 2019 22:44:21 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EBC1E2053B for ; Tue, 10 Dec 2019 22:44:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576017861; bh=kEw65JPUeeeLdPYT7MjEL5X1pmo845/HjvaBh46ctSY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=fccAX9cvC0acoW+d9zdHrVHd0jYBWzeX3rkogIAtaIapTs9L8PUahksGgVeQqEWPb jnfF22iBFMWOToMlSiXQESSrJ1dUhBZtFH/cptIXMwByPY5LBHPzcB2sgysf6OUWT6 mbBqyQEEmTiOQCfb5i9wAYqQaGITm/Ru1dtCdnqU= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727513AbfLJWav (ORCPT ); Tue, 10 Dec 2019 17:30:51 -0500 Received: from mail.kernel.org ([198.145.29.99]:50612 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727489AbfLJWau (ORCPT ); Tue, 10 Dec 2019 17:30:50 -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 925CB2077B; Tue, 10 Dec 2019 22:30:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1576017049; bh=kEw65JPUeeeLdPYT7MjEL5X1pmo845/HjvaBh46ctSY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=IHvTleinE6/YSzB2MPBSle2EZhjy9SPoA/3qJPeAHTLnHBRDKL8/h81bJu5jSzqGG o0dRF3XufgrxFalYCZjo9DpH0ajr1KwCt6RV4TOxU9AQRfUl2m8dMP3aHm0HBnFAJ5 108PYDZgiW2vMLBE3EXOCAF0osyEfIT48srlGDBc= 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 4.9 11/91] IB/iser: bound protection_sg size by data_sg size Date: Tue, 10 Dec 2019 17:29:15 -0500 Message-Id: <20191210223035.14270-11-sashal@kernel.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191210223035.14270-1-sashal@kernel.org> References: <20191210223035.14270-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Sender: linux-rdma-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-rdma@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 e46e2b095c184..fdf5179a81c10 100644 --- a/drivers/infiniband/ulp/iser/iscsi_iser.c +++ b/drivers/infiniband/ulp/iser/iscsi_iser.c @@ -649,6 +649,7 @@ iscsi_iser_session_create(struct iscsi_endpoint *ep, if (ib_conn->pi_support) { u32 sig_caps = ib_conn->device->ib_device->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