From patchwork Tue Jul 11 14:54:41 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Halil Pasic X-Patchwork-Id: 786650 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3x6QDy1J5Wz9s03 for ; Wed, 12 Jul 2017 00:58:10 +1000 (AEST) Received: from localhost ([::1]:46866 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dUwc4-0002OI-47 for incoming@patchwork.ozlabs.org; Tue, 11 Jul 2017 10:58:08 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:48156) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dUwZ1-00009j-PT for qemu-devel@nongnu.org; Tue, 11 Jul 2017 10:55:01 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dUwZ0-000562-LR for qemu-devel@nongnu.org; Tue, 11 Jul 2017 10:54:59 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:43021 helo=mx0a-001b2d01.pphosted.com) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dUwZ0-00055r-Eo for qemu-devel@nongnu.org; Tue, 11 Jul 2017 10:54:58 -0400 Received: from pps.filterd (m0098413.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.21/8.16.0.21) with SMTP id v6BEsuBS068276 for ; Tue, 11 Jul 2017 10:54:57 -0400 Received: from e06smtp15.uk.ibm.com (e06smtp15.uk.ibm.com [195.75.94.111]) by mx0b-001b2d01.pphosted.com with ESMTP id 2bn0mvrksh-1 (version=TLSv1.2 cipher=AES256-SHA bits=256 verify=NOT) for ; Tue, 11 Jul 2017 10:54:57 -0400 Received: from localhost by e06smtp15.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! 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Violators will be prosecuted; Tue, 11 Jul 2017 15:54:52 +0100 Received: from d06av23.portsmouth.uk.ibm.com (d06av23.portsmouth.uk.ibm.com [9.149.105.59]) by b06cxnps4075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id v6BEsqsX38273202; Tue, 11 Jul 2017 14:54:52 GMT Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 937E7A4065; Tue, 11 Jul 2017 15:52:11 +0100 (BST) Received: from d06av23.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 475E8A405F; Tue, 11 Jul 2017 15:52:11 +0100 (BST) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by d06av23.portsmouth.uk.ibm.com (Postfix) with ESMTPS; Tue, 11 Jul 2017 15:52:11 +0100 (BST) From: Halil Pasic To: Christian Borntraeger , Cornelia Huck Date: Tue, 11 Jul 2017 16:54:41 +0200 X-Mailer: git-send-email 2.11.2 In-Reply-To: <20170711145441.33925-1-pasic@linux.vnet.ibm.com> References: <20170711145441.33925-1-pasic@linux.vnet.ibm.com> X-TM-AS-GCONF: 00 x-cbid: 17071114-0020-0000-0000-0000039F5EBD X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 17071114-0021-0000-0000-0000422405C9 Message-Id: <20170711145441.33925-7-pasic@linux.vnet.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10432:, , definitions=2017-07-11_07:, , signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 suspectscore=0 malwarescore=0 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1706020000 definitions=main-1707110237 X-detected-operating-system: by eggs.gnu.org: GNU/Linux 3.x [generic] [fuzzy] X-Received-From: 148.163.158.5 Subject: [Qemu-devel] [PATCH v3 6/6] s390x/css: use SubchDev.orb X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Thomas Huth , Juan Quintela , "Dr. David Alan Gilbert" , qemu-devel@nongnu.org, Halil Pasic , "Jason J . Herne" , Cornelia Huck , Dong Jia Shi Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Instead of passing around a pointer to ORB let us simplify some function signatures by using the previously introduced ORB saved at the subchannel (SubchDev). Signed-off-by: Halil Pasic Reviewed-by: Cornelia Huck --- hw/s390x/css.c | 30 +++++++++++++++--------------- include/hw/s390x/css.h | 6 +++--- 2 files changed, 18 insertions(+), 18 deletions(-) diff --git a/hw/s390x/css.c b/hw/s390x/css.c index b89b60751a..abc77f7d4c 100644 --- a/hw/s390x/css.c +++ b/hw/s390x/css.c @@ -865,7 +865,7 @@ static int css_interpret_ccw(SubchDev *sch, hwaddr ccw_addr, return ret; } -static void sch_handle_start_func_virtual(SubchDev *sch, ORB *orb) +static void sch_handle_start_func_virtual(SubchDev *sch) { PMCW *p = &sch->curr_status.pmcw; @@ -879,10 +879,10 @@ static void sch_handle_start_func_virtual(SubchDev *sch, ORB *orb) if (!(s->ctrl & SCSW_ACTL_SUSP)) { /* Start Function triggered via ssch, i.e. we have an ORB */ + ORB *orb = &sch->orb; s->cstat = 0; s->dstat = 0; /* Look at the orb and try to execute the channel program. */ - assert(orb != NULL); /* resume does not pass an orb */ p->intparm = orb->intparm; if (!(orb->lpm & path)) { /* Generate a deferred cc 3 condition. */ @@ -896,8 +896,7 @@ static void sch_handle_start_func_virtual(SubchDev *sch, ORB *orb) sch->ccw_no_data_cnt = 0; suspend_allowed = !!(orb->ctrl0 & ORB_CTRL0_MASK_SPND); } else { - /* Start Function resumed via rsch, i.e. we don't have an - * ORB */ + /* Start Function resumed via rsch */ s->ctrl &= ~(SCSW_ACTL_SUSP | SCSW_ACTL_RESUME_PEND); /* The channel program had been suspended before. */ suspend_allowed = true; @@ -967,13 +966,14 @@ static void sch_handle_start_func_virtual(SubchDev *sch, ORB *orb) } -static int sch_handle_start_func_passthrough(SubchDev *sch, ORB *orb) +static int sch_handle_start_func_passthrough(SubchDev *sch) { PMCW *p = &sch->curr_status.pmcw; SCSW *s = &sch->curr_status.scsw; int ret; + ORB *orb = &sch->orb; if (!(s->ctrl & SCSW_ACTL_SUSP)) { assert(orb != NULL); p->intparm = orb->intparm; @@ -1018,7 +1018,7 @@ static int sch_handle_start_func_passthrough(SubchDev *sch, ORB *orb) * read/writes) asynchronous later on if we start supporting more than * our current very simple devices. */ -int do_subchannel_work_virtual(SubchDev *sch, ORB *orb) +int do_subchannel_work_virtual(SubchDev *sch) { SCSW *s = &sch->curr_status.scsw; @@ -1029,7 +1029,7 @@ int do_subchannel_work_virtual(SubchDev *sch, ORB *orb) sch_handle_halt_func(sch); } else if (s->ctrl & SCSW_FCTL_START_FUNC) { /* Triggered by both ssch and rsch. */ - sch_handle_start_func_virtual(sch, orb); + sch_handle_start_func_virtual(sch); } else { /* Cannot happen. */ return 0; @@ -1038,7 +1038,7 @@ int do_subchannel_work_virtual(SubchDev *sch, ORB *orb) return 0; } -int do_subchannel_work_passthrough(SubchDev *sch, ORB *orb) +int do_subchannel_work_passthrough(SubchDev *sch) { int ret; SCSW *s = &sch->curr_status.scsw; @@ -1052,7 +1052,7 @@ int do_subchannel_work_passthrough(SubchDev *sch, ORB *orb) sch_handle_halt_func(sch); ret = 0; } else if (s->ctrl & SCSW_FCTL_START_FUNC) { - ret = sch_handle_start_func_passthrough(sch, orb); + ret = sch_handle_start_func_passthrough(sch); } else { /* Cannot happen. */ return -ENODEV; @@ -1061,10 +1061,10 @@ int do_subchannel_work_passthrough(SubchDev *sch, ORB *orb) return ret; } -static int do_subchannel_work(SubchDev *sch, ORB *orb) +static int do_subchannel_work(SubchDev *sch) { if (sch->do_subchannel_work) { - return sch->do_subchannel_work(sch, orb); + return sch->do_subchannel_work(sch); } else { return -EINVAL; } @@ -1271,7 +1271,7 @@ int css_do_csch(SubchDev *sch) s->ctrl &= ~(SCSW_CTRL_MASK_FCTL | SCSW_CTRL_MASK_ACTL); s->ctrl |= SCSW_FCTL_CLEAR_FUNC | SCSW_ACTL_CLEAR_PEND; - do_subchannel_work(sch, NULL); + do_subchannel_work(sch); ret = 0; out: @@ -1312,7 +1312,7 @@ int css_do_hsch(SubchDev *sch) } s->ctrl |= SCSW_ACTL_HALT_PEND; - do_subchannel_work(sch, NULL); + do_subchannel_work(sch); ret = 0; out: @@ -1387,7 +1387,7 @@ int css_do_ssch(SubchDev *sch, ORB *orb) s->ctrl |= (SCSW_FCTL_START_FUNC | SCSW_ACTL_START_PEND); s->flags &= ~SCSW_FLAGS_MASK_PNO; - ret = do_subchannel_work(sch, orb); + ret = do_subchannel_work(sch); out: return ret; @@ -1666,7 +1666,7 @@ int css_do_rsch(SubchDev *sch) } s->ctrl |= SCSW_ACTL_RESUME_PEND; - do_subchannel_work(sch, NULL); + do_subchannel_work(sch); ret = 0; out: diff --git a/include/hw/s390x/css.h b/include/hw/s390x/css.h index 949e0f0a28..165ca2f4e9 100644 --- a/include/hw/s390x/css.h +++ b/include/hw/s390x/css.h @@ -93,7 +93,7 @@ struct SubchDev { /* transport-provided data: */ int (*ccw_cb) (SubchDev *, CCW1); void (*disable_cb)(SubchDev *); - int (*do_subchannel_work) (SubchDev *, ORB *); + int (*do_subchannel_work) (SubchDev *); SenseId id; void *driver_data; }; @@ -157,8 +157,8 @@ void css_generate_css_crws(uint8_t cssid); void css_clear_sei_pending(void); void css_adapter_interrupt(uint8_t isc); int s390_ccw_cmd_request(ORB *orb, SCSW *scsw, void *data); -int do_subchannel_work_virtual(SubchDev *sub, ORB *orb); -int do_subchannel_work_passthrough(SubchDev *sub, ORB *orb); +int do_subchannel_work_virtual(SubchDev *sub); +int do_subchannel_work_passthrough(SubchDev *sub); typedef enum { CSS_IO_ADAPTER_VIRTIO = 0,