From patchwork Thu Mar 26 07:08:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Saurav Kashyap X-Patchwork-Id: 11459433 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 162BA13A4 for ; Thu, 26 Mar 2020 07:08:25 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id DF4B22083E for ; Thu, 26 Mar 2020 07:08:24 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=marvell.com header.i=@marvell.com header.b="J7H0ziHg" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727857AbgCZHIX (ORCPT ); Thu, 26 Mar 2020 03:08:23 -0400 Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:60050 "EHLO mx0b-0016f401.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1727639AbgCZHIW (ORCPT ); Thu, 26 Mar 2020 03:08:22 -0400 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.42/8.16.0.42) with SMTP id 02Q70cnn019549; Thu, 26 Mar 2020 00:08:21 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=marvell.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=pfpt0818; bh=zM4RrSO2DvizfKXmC6pIIS8Jn6nIkU2uKlXMEB2FSnE=; b=J7H0ziHguX2rEveQCvf3lEFoAhPqfW1kC2OSBBfkE3Y8EaBEPyvQKOKlKKjkrHmXUUvs 0/F6yfEYlTs88WAceC8r/TEFZxC0YImByRK2t6REaEy5bN0NClK6GujhSpnbm96H2xvt TWhE03OXL9Y1WoBhTVE8CbvUB+64miEbzsW7SM6qTkUk6SDhe9zMmrm0003MxTo8UDmS 0AZribbd0ZFtIymTL14icW8fLfKLaMDWJi6YbX+wemGI2ITXXzFHTyaTkG0F+hEcoVQe hJkMJATx+2QHRpxU5+DUH5zxa7nwbPOvGzh1FC1AXN8l7qcGX1gszIEsAr5ejs096VT1 3w== Received: from sc-exch01.marvell.com ([199.233.58.181]) by mx0a-0016f401.pphosted.com with ESMTP id 2ywg9nv951-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Thu, 26 Mar 2020 00:08:21 -0700 Received: from SC-EXCH01.marvell.com (10.93.176.81) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Thu, 26 Mar 2020 00:08:19 -0700 Received: from maili.marvell.com (10.93.176.43) by SC-EXCH01.marvell.com (10.93.176.81) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Thu, 26 Mar 2020 00:08:19 -0700 Received: from dut1171.mv.qlogic.com (unknown [10.112.88.18]) by maili.marvell.com (Postfix) with ESMTP id 7D6BA3F703F; Thu, 26 Mar 2020 00:08:19 -0700 (PDT) Received: from dut1171.mv.qlogic.com (localhost [127.0.0.1]) by dut1171.mv.qlogic.com (8.14.7/8.14.7) with ESMTP id 02Q78Jsp025544; Thu, 26 Mar 2020 00:08:19 -0700 Received: (from root@localhost) by dut1171.mv.qlogic.com (8.14.7/8.14.7/Submit) id 02Q78JCY025543; Thu, 26 Mar 2020 00:08:19 -0700 From: Saurav Kashyap To: CC: , , Subject: [PATCH 4/8] qedf: Implement callback for bw_update. Date: Thu, 26 Mar 2020 00:08:02 -0700 Message-ID: <20200326070806.25493-5-skashyap@marvell.com> X-Mailer: git-send-email 2.12.0 In-Reply-To: <20200326070806.25493-1-skashyap@marvell.com> References: <20200326070806.25493-1-skashyap@marvell.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.138,18.0.645 definitions=2020-03-25_15:2020-03-24,2020-03-25 signatures=0 Sender: linux-scsi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-scsi@vger.kernel.org This is extension of bw common callback provided by qed. This is called whenever there is a change in the BW. Signed-off-by: Saurav Kashyap --- drivers/scsi/qedf/qedf_main.c | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index ee468102..ba66216 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -509,6 +509,32 @@ static void qedf_update_link_speed(struct qedf_ctx *qedf, fc_host_supported_speeds(lport->host) = lport->link_supported_speeds; } +static void qedf_bw_update(void *dev) +{ + struct qedf_ctx *qedf = (struct qedf_ctx *)dev; + struct qed_link_output link; + + /* Get the latest status of the link */ + qed_ops->common->get_link(qedf->cdev, &link); + + if (test_bit(QEDF_UNLOADING, &qedf->flags)) { + QEDF_ERR(&qedf->dbg_ctx, + "Ignore link update, driver getting unload.\n"); + return; + } + + if (link.link_up) { + if (atomic_read(&qedf->link_state) == QEDF_LINK_UP) + qedf_update_link_speed(qedf, &link); + else + QEDF_ERR(&qedf->dbg_ctx, + "Ignore bw update, link is down.\n"); + + } else { + QEDF_ERR(&qedf->dbg_ctx, "link_up is not set.\n"); + } +} + static void qedf_link_update(void *dev, struct qed_link_output *link) { struct qedf_ctx *qedf = (struct qedf_ctx *)dev; @@ -635,6 +661,7 @@ static u32 qedf_get_login_failures(void *cookie) static struct qed_fcoe_cb_ops qedf_cb_ops = { { .link_update = qedf_link_update, + .bw_update = qedf_bw_update, .dcbx_aen = qedf_dcbx_handler, .get_generic_tlv_data = qedf_get_generic_tlv_data, .get_protocol_tlv_data = qedf_get_protocol_tlv_data,