From patchwork Mon Oct 25 09:56:52 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julian Wiedmann X-Patchwork-Id: 12581289 X-Patchwork-Delegate: kuba@kernel.org Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC812C433FE for ; Mon, 25 Oct 2021 09:57:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BED5F60C41 for ; Mon, 25 Oct 2021 09:57:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232766AbhJYKAA (ORCPT ); Mon, 25 Oct 2021 06:00:00 -0400 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:22726 "EHLO mx0b-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232720AbhJYJ7g (ORCPT ); Mon, 25 Oct 2021 05:59:36 -0400 Received: from pps.filterd (m0127361.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 19P9XJmN004653; Mon, 25 Oct 2021 09:57:11 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=L7dw5vd8FJSVo/VaW4FOfmQ1+IZwHR0wH10GZgpdnCM=; b=OOfs2khHZRLfF4ptPRgC2PDQ0G+aXfBEXXsEM4g+SI3RxyzSqn3D/0ybBOJ3plJpe3mT 8Kcqz5aulXzMMpoY2XdvHVvYmS4Q4N5gCZitYSyTp+nUDUCKCqHEhlvz2Vh1qhiXvOKi pW1h6fjhacYplPoszxqRN5da8USZORsbHzqlEQxulrTj326aMPiitxUv9dZmLCiCG8nH uekLKTKi+CQUYbBlSBcJjrwoJSPs1c9iSc2ZNR/P/Zjbb2MShuug0begoWRHUQRgu4bS uHxzWC+eqVsyhCoqAXR6uuh2WkSB+3LZunD9ldsQIR6f1ExRgPVyYoCSgyqJZ1WC0YxM zg== Received: from ppma06ams.nl.ibm.com (66.31.33a9.ip4.static.sl-reverse.com [169.51.49.102]) by mx0a-001b2d01.pphosted.com with ESMTP id 3bwt25geh3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 25 Oct 2021 09:57:10 +0000 Received: from pps.filterd (ppma06ams.nl.ibm.com [127.0.0.1]) by ppma06ams.nl.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 19P9gxLc000861; Mon, 25 Oct 2021 09:57:08 GMT Received: from b06cxnps3075.portsmouth.uk.ibm.com (d06relay10.portsmouth.uk.ibm.com [9.149.109.195]) by ppma06ams.nl.ibm.com with ESMTP id 3bv9njcdcd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 25 Oct 2021 09:57:08 +0000 Received: from d06av25.portsmouth.uk.ibm.com (d06av25.portsmouth.uk.ibm.com [9.149.105.61]) by b06cxnps3075.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 19P9v5Xl48890168 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 25 Oct 2021 09:57:05 GMT Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 415D611C054; Mon, 25 Oct 2021 09:57:05 +0000 (GMT) Received: from d06av25.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id EC52411C05B; Mon, 25 Oct 2021 09:57:04 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by d06av25.portsmouth.uk.ibm.com (Postfix) with ESMTP; Mon, 25 Oct 2021 09:57:04 +0000 (GMT) From: Julian Wiedmann To: David Miller , Jakub Kicinski Cc: linux-netdev , linux-s390 , Heiko Carstens , Karsten Graul , Julian Wiedmann , Benjamin Block Subject: [PATCH net-next 3/9] s390/qeth: move qdio's QAOB cache into qeth Date: Mon, 25 Oct 2021 11:56:52 +0200 Message-Id: <20211025095658.3527635-4-jwi@linux.ibm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211025095658.3527635-1-jwi@linux.ibm.com> References: <20211025095658.3527635-1-jwi@linux.ibm.com> MIME-Version: 1.0 X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: K19A9QnFKxOEXE_lP_U6y3cLjxn186Cl X-Proofpoint-GUID: K19A9QnFKxOEXE_lP_U6y3cLjxn186Cl X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.182.1,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.0.607.475 definitions=2021-10-25_03,2021-10-25_01,2020-04-07_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 suspectscore=0 priorityscore=1501 malwarescore=0 clxscore=1015 bulkscore=0 spamscore=0 mlxlogscore=999 mlxscore=0 impostorscore=0 adultscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2109230001 definitions=main-2110250058 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org qdio.ko no longer needs to care about how the QAOBs are allocated, from its perspective they are merely another parameter to do_QDIO(). So for a start, shift the cache into the only qdio driver that uses QAOBs (ie. qeth). Here there's further opportunity to optimize its usage in the future - eg. make it per-{device, TX queue}, or only compile it when the driver is built with CQ/QAOB support. Signed-off-by: Julian Wiedmann Reviewed-by: Benjamin Block --- arch/s390/include/asm/qdio.h | 2 -- drivers/s390/cio/qdio_setup.c | 34 ++----------------------------- drivers/s390/net/qeth_core_main.c | 19 +++++++++++++++-- 3 files changed, 19 insertions(+), 36 deletions(-) diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h index 25b5dc34db75..4b9b14b20984 100644 --- a/arch/s390/include/asm/qdio.h +++ b/arch/s390/include/asm/qdio.h @@ -349,8 +349,6 @@ extern int qdio_allocate(struct ccw_device *cdev, unsigned int no_input_qs, extern int qdio_establish(struct ccw_device *cdev, struct qdio_initialize *init_data); extern int qdio_activate(struct ccw_device *); -extern struct qaob *qdio_allocate_aob(void); -extern void qdio_release_aob(struct qaob *); extern int do_QDIO(struct ccw_device *cdev, unsigned int callflags, int q_nr, unsigned int bufnr, unsigned int count, struct qaob *aob); extern int qdio_start_irq(struct ccw_device *cdev); diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c index 20efafe47897..efbb5e5eca05 100644 --- a/drivers/s390/cio/qdio_setup.c +++ b/drivers/s390/cio/qdio_setup.c @@ -24,19 +24,6 @@ #define QBUFF_PER_PAGE (PAGE_SIZE / sizeof(struct qdio_buffer)) static struct kmem_cache *qdio_q_cache; -static struct kmem_cache *qdio_aob_cache; - -struct qaob *qdio_allocate_aob(void) -{ - return kmem_cache_zalloc(qdio_aob_cache, GFP_ATOMIC); -} -EXPORT_SYMBOL_GPL(qdio_allocate_aob); - -void qdio_release_aob(struct qaob *aob) -{ - kmem_cache_free(qdio_aob_cache, aob); -} -EXPORT_SYMBOL_GPL(qdio_release_aob); /** * qdio_free_buffers() - free qdio buffers @@ -447,39 +434,22 @@ void qdio_print_subchannel_info(struct qdio_irq *irq_ptr) int __init qdio_setup_init(void) { - int rc; - qdio_q_cache = kmem_cache_create("qdio_q", sizeof(struct qdio_q), 256, 0, NULL); if (!qdio_q_cache) return -ENOMEM; - qdio_aob_cache = kmem_cache_create("qdio_aob", - sizeof(struct qaob), - sizeof(struct qaob), - 0, - NULL); - if (!qdio_aob_cache) { - rc = -ENOMEM; - goto free_qdio_q_cache; - } - /* Check for OSA/FCP thin interrupts (bit 67). */ DBF_EVENT("thinint:%1d", (css_general_characteristics.aif_osa) ? 1 : 0); /* Check for QEBSM support in general (bit 58). */ DBF_EVENT("cssQEBSM:%1d", css_general_characteristics.qebsm); - rc = 0; -out: - return rc; -free_qdio_q_cache: - kmem_cache_destroy(qdio_q_cache); - goto out; + + return 0; } void qdio_setup_exit(void) { - kmem_cache_destroy(qdio_aob_cache); kmem_cache_destroy(qdio_q_cache); } diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c index 4149ea253fa0..48dea62bdaa4 100644 --- a/drivers/s390/net/qeth_core_main.c +++ b/drivers/s390/net/qeth_core_main.c @@ -59,6 +59,7 @@ EXPORT_SYMBOL_GPL(qeth_dbf); static struct kmem_cache *qeth_core_header_cache; static struct kmem_cache *qeth_qdio_outbuf_cache; +static struct kmem_cache *qeth_qaob_cache; static struct device *qeth_core_root_dev; static struct dentry *qeth_debugfs_root; @@ -1338,7 +1339,7 @@ static void qeth_clear_output_buffer(struct qeth_qdio_out_q *queue, static void qeth_free_out_buf(struct qeth_qdio_out_buffer *buf) { if (buf->aob) - qdio_release_aob(buf->aob); + kmem_cache_free(qeth_qaob_cache, buf->aob); kmem_cache_free(qeth_qdio_outbuf_cache, buf); } @@ -3554,7 +3555,8 @@ static void qeth_flush_buffers(struct qeth_qdio_out_q *queue, int index, !qeth_iqd_is_mcast_queue(card, queue) && count == 1) { if (!buf->aob) - buf->aob = qdio_allocate_aob(); + buf->aob = kmem_cache_zalloc(qeth_qaob_cache, + GFP_ATOMIC); if (buf->aob) { struct qeth_qaob_priv1 *priv; @@ -7174,6 +7176,16 @@ static int __init qeth_core_init(void) rc = -ENOMEM; goto cqslab_err; } + + qeth_qaob_cache = kmem_cache_create("qeth_qaob", + sizeof(struct qaob), + sizeof(struct qaob), + 0, NULL); + if (!qeth_qaob_cache) { + rc = -ENOMEM; + goto qaob_err; + } + rc = ccw_driver_register(&qeth_ccw_driver); if (rc) goto ccw_err; @@ -7186,6 +7198,8 @@ static int __init qeth_core_init(void) ccwgroup_err: ccw_driver_unregister(&qeth_ccw_driver); ccw_err: + kmem_cache_destroy(qeth_qaob_cache); +qaob_err: kmem_cache_destroy(qeth_qdio_outbuf_cache); cqslab_err: kmem_cache_destroy(qeth_core_header_cache); @@ -7204,6 +7218,7 @@ static void __exit qeth_core_exit(void) qeth_clear_dbf_list(); ccwgroup_driver_unregister(&qeth_core_ccwgroup_driver); ccw_driver_unregister(&qeth_ccw_driver); + kmem_cache_destroy(qeth_qaob_cache); kmem_cache_destroy(qeth_qdio_outbuf_cache); kmem_cache_destroy(qeth_core_header_cache); root_device_unregister(qeth_core_root_dev);