From patchwork Mon Jun 3 21:43:29 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Don Brace X-Patchwork-Id: 10974001 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id A98C0933 for ; Mon, 3 Jun 2019 21:43:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9767E28623 for ; Mon, 3 Jun 2019 21:43:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8AAA6286B3; Mon, 3 Jun 2019 21:43:35 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A687D28623 for ; Mon, 3 Jun 2019 21:43:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726490AbfFCVnc (ORCPT ); Mon, 3 Jun 2019 17:43:32 -0400 Received: from esa6.microchip.iphmx.com ([216.71.154.253]:20939 "EHLO esa6.microchip.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726055AbfFCVnc (ORCPT ); Mon, 3 Jun 2019 17:43:32 -0400 Authentication-Results: esa6.microchip.iphmx.com; dkim=none (message not signed) header.i=none; spf=Pass smtp.mailfrom=don.brace@microsemi.com; spf=None smtp.helo=postmaster@smtp.microsemi.com Received-SPF: Pass (esa6.microchip.iphmx.com: domain of don.brace@microsemi.com designates 208.19.99.222 as permitted sender) identity=mailfrom; client-ip=208.19.99.222; receiver=esa6.microchip.iphmx.com; envelope-from="don.brace@microsemi.com"; x-sender="don.brace@microsemi.com"; x-conformance=spf_only; x-record-type="v=spf1"; x-record-text="v=spf1 ip4:208.19.100.20 ip4:208.19.100.21 ip4:208.19.100.22 ip4:208.19.100.23 ip4:208.19.99.221 ip4:208.19.99.222 ip4:208.19.99.223 ip4:208.19.99.225 -all" Received-SPF: None (esa6.microchip.iphmx.com: no sender authenticity information available from domain of postmaster@smtp.microsemi.com) identity=helo; client-ip=208.19.99.222; receiver=esa6.microchip.iphmx.com; envelope-from="don.brace@microsemi.com"; x-sender="postmaster@smtp.microsemi.com"; x-conformance=spf_only X-Ironport-Dmarc-Check-Result: validskip X-IronPort-AV: E=Sophos;i="5.60,548,1549954800"; d="scan'208";a="32965205" Received: from unknown (HELO smtp.microsemi.com) ([208.19.99.222]) by esa6.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 03 Jun 2019 14:43:31 -0700 Received: from AUSMBX1.microsemi.net (10.201.34.31) by AUSMBX2.microsemi.net (10.201.34.32) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Mon, 3 Jun 2019 16:43:30 -0500 Received: from AUSMBX3.microsemi.net (10.201.34.33) by AUSMBX1.microsemi.net (10.201.34.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Mon, 3 Jun 2019 16:43:29 -0500 Received: from [127.0.1.1] (10.238.32.34) by ausmbx3.microsemi.net (10.201.34.33) with Microsoft SMTP Server id 15.1.1713.5 via Frontend Transport; Mon, 3 Jun 2019 16:43:29 -0500 Subject: [PATCH] hpsa: correct ioaccel2 chaining From: Don Brace To: , , , , , , , , , , , CC: Date: Mon, 3 Jun 2019 16:43:29 -0500 Message-ID: <155959820906.12441.16284446831021860511.stgit@brunhilda> User-Agent: StGit/0.19 MIME-Version: 1.0 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP - set ioaccel2_sg_element member 'chain_indicator' to IOACCEL2_LAST_SG for the last s/g element. - set ioaccel2_sg_element member 'chain_indicator' to IOACCEL2_CHAIN when chaining. Reviewed-by: Bader Ali - Saleh Reviewed-by: Scott Teel Reviewed-by: Matt Perricone < matt.perricone@microsemi.com> Signed-off-by: Don Brace --- drivers/scsi/hpsa.c | 7 ++++++- drivers/scsi/hpsa_cmd.h | 1 + 2 files changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 1bef1da273c2..8068520cf89e 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -4940,7 +4940,7 @@ static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info *h, curr_sg->reserved[0] = 0; curr_sg->reserved[1] = 0; curr_sg->reserved[2] = 0; - curr_sg->chain_indicator = 0x80; + curr_sg->chain_indicator = IOACCEL2_CHAIN; curr_sg = h->ioaccel2_cmd_sg_list[c->cmdindex]; } @@ -4957,6 +4957,11 @@ static int hpsa_scsi_ioaccel2_queue_command(struct ctlr_info *h, curr_sg++; } + /* + * Set the last s/g element bit + */ + (curr_sg - 1)->chain_indicator = IOACCEL2_LAST_SG; + switch (cmd->sc_data_direction) { case DMA_TO_DEVICE: cp->direction &= ~IOACCEL2_DIRECTION_MASK; diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h index 21a726e2eec6..f6afca4b2319 100644 --- a/drivers/scsi/hpsa_cmd.h +++ b/drivers/scsi/hpsa_cmd.h @@ -517,6 +517,7 @@ struct ioaccel2_sg_element { u8 reserved[3]; u8 chain_indicator; #define IOACCEL2_CHAIN 0x80 +#define IOACCEL2_LAST_SG 0x40 }; /*