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[2620:137:e000::3:6]) by mx.google.com with ESMTPS id h6-20020a056a00170600b006cb686c08f4si5683679pfc.211.2023.12.10.22.34.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 10 Dec 2023 22:34:51 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) client-ip=2620:137:e000::3:6; Authentication-Results: mx.google.com; dkim=pass header.i=@marvell.com header.s=pfpt0220 header.b=BiBHlaki; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::3:6 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=REJECT dis=NONE) header.from=marvell.com Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by pete.vger.email (Postfix) with ESMTP id E77E68066933; Sun, 10 Dec 2023 22:34:44 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at pete.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233510AbjLKGeW (ORCPT + 99 others); Mon, 11 Dec 2023 01:34:22 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:41544 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233574AbjLKGeK (ORCPT ); Mon, 11 Dec 2023 01:34:10 -0500 Received: from mx0b-0016f401.pphosted.com (mx0a-0016f401.pphosted.com [67.231.148.174]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D732E10C; Sun, 10 Dec 2023 22:34:15 -0800 (PST) Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 3BALXQr9013888; Sun, 10 Dec 2023 22:34:09 -0800 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-transfer-encoding:content-type; s= pfpt0220; bh=6zOpeS+kHPoXeM1GXZo57RXPx7qkXIxstVOPaI4PLho=; b=BiB HlakiPQljHT65tTy9mvpW5ZVZda+jnPILPWD6lNMt4tHVVwQPSVHZ5cxm0rd8QKK N9kxfZLlQUhBEyphaO7YHbPZCKDLHSoXcr0LcXNDZQ7WUeN52J7ShLLFAH4d2XH1 coyWpC5Tv3duzylh/wgca+HUax5FRRS4uY9OhojemgmeFUlwP3eaxxsddoPc1VXS u9lgzlLM38qOKWGMSydK4eCqrf3Ui6NdFxCcPP1pvL7YmhszM8BVCns7GaTPpRp7 AMM66KFBjLscETNkN68epVj8UcSGygRLWn+qtKT7IW1xWg1HK3O2c+kzNxu5RXFH qqHidToQVr+giEZROHA== Received: from dc5-exch02.marvell.com ([199.233.59.182]) by mx0a-0016f401.pphosted.com (PPS) with ESMTPS id 3uw8xqa5xf-2 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT); Sun, 10 Dec 2023 22:34:09 -0800 (PST) Received: from DC5-EXCH01.marvell.com (10.69.176.38) by DC5-EXCH02.marvell.com (10.69.176.39) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Sun, 10 Dec 2023 22:34:07 -0800 Received: from maili.marvell.com (10.69.176.80) by DC5-EXCH01.marvell.com (10.69.176.38) with Microsoft SMTP Server id 15.0.1497.48 via Frontend Transport; Sun, 10 Dec 2023 22:34:07 -0800 Received: from ubuntu-PowerEdge-T110-II.sclab.marvell.com (unknown [10.106.27.86]) by maili.marvell.com (Postfix) with ESMTP id F2CFC3F70AA; Sun, 10 Dec 2023 22:34:06 -0800 (PST) From: Shinas Rasheed To: , CC: , , , , , , , , , , , Shinas Rasheed , Veerasenareddy Burru , "Sathesh Edara" , Eric Dumazet Subject: [PATCH net-next v3 4/4] octeon_ep: support firmware notifications for VFs Date: Sun, 10 Dec 2023 22:33:55 -0800 Message-ID: <20231211063355.2630028-5-srasheed@marvell.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20231211063355.2630028-1-srasheed@marvell.com> References: <20231211063355.2630028-1-srasheed@marvell.com> MIME-Version: 1.0 X-Proofpoint-GUID: Q-g9Jo2Snk1u3v_4lASkbtOvABmVwGVv X-Proofpoint-ORIG-GUID: Q-g9Jo2Snk1u3v_4lASkbtOvABmVwGVv X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2023-12-09_02,2023-12-07_01,2023-05-22_02 X-Spam-Status: No, score=-0.9 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on pete.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (pete.vger.email [0.0.0.0]); Sun, 10 Dec 2023 22:34:45 -0800 (PST) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1784966274535582627 X-GMAIL-MSGID: 1784966274535582627 Notifications from firmware to vf has to pass through PF control mbox and via PF-VF mailboxes. The notifications have to be parsed out from the control mbox and passed to the PF-VF mailbox in order to reach the corresponding VF. Version compatibility should also be checked before messages are passed to the mailboxes. Signed-off-by: Shinas Rasheed --- V3: - No changes V2: https://lore.kernel.org/all/20231209081450.2613561-5-srasheed@marvell.com/ - No changes V1: https://lore.kernel.org/all/20231208070352.2606192-5-srasheed@marvell.com/ .../marvell/octeon_ep/octep_ctrl_net.c | 6 ++ .../marvell/octeon_ep/octep_pfvf_mbox.c | 58 +++++++++++++++++++ .../marvell/octeon_ep/octep_pfvf_mbox.h | 2 + 3 files changed, 66 insertions(+) diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c index 9dff2166dbb7..01b7be154c38 100644 --- a/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_ctrl_net.c @@ -13,6 +13,7 @@ #include "octep_config.h" #include "octep_main.h" #include "octep_ctrl_net.h" +#include "octep_pfvf_mbox.h" /* Control plane version */ #define OCTEP_CP_VERSION_CURRENT OCTEP_CP_VERSION(1, 0, 0) @@ -329,6 +330,11 @@ static int process_mbox_notify(struct octep_device *oct, octep_ctrl_net_f2h_cmd_versions[cmd] < OCTEP_CP_VERSION_CURRENT) return -EOPNOTSUPP; + if (msg->hdr.s.is_vf) { + octep_pfvf_notify(oct, msg); + return 0; + } + switch (cmd) { case OCTEP_CTRL_NET_F2H_CMD_LINK_STATUS: if (netif_running(netdev)) { diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c b/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c index 57e0184840c2..387a07456f54 100644 --- a/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.c @@ -22,6 +22,15 @@ #include "octep_pfvf_mbox.h" #include "octep_ctrl_net.h" +/* When a new command is implemented, the below table should be updated + * with new command and it's version info. + */ +static u32 pfvf_cmd_versions[OCTEP_PFVF_MBOX_CMD_MAX] = { + [0 ... OCTEP_PFVF_MBOX_CMD_DEV_REMOVE] = OCTEP_PFVF_MBOX_VERSION_V1, + [OCTEP_PFVF_MBOX_CMD_GET_FW_INFO ... OCTEP_PFVF_MBOX_NOTIF_LINK_STATUS] = + OCTEP_PFVF_MBOX_VERSION_V2 +}; + static void octep_pfvf_validate_version(struct octep_device *oct, u32 vf_id, union octep_pfvf_mbox_word cmd, union octep_pfvf_mbox_word *rsp) @@ -88,6 +97,34 @@ static void octep_pfvf_set_rx_state(struct octep_device *oct, u32 vf_id, rsp->s_link_state.type = OCTEP_PFVF_MBOX_TYPE_RSP_ACK; } +static int octep_send_notification(struct octep_device *oct, u32 vf_id, + union octep_pfvf_mbox_word cmd) +{ + u32 max_rings_per_vf, vf_mbox_queue; + struct octep_mbox *mbox; + + /* check if VF PF Mailbox is compatible for this notification */ + if (pfvf_cmd_versions[cmd.s.opcode] > oct->vf_info[vf_id].mbox_version) { + dev_dbg(&oct->pdev->dev, "VF Mbox doesn't support Notification:%d on VF ver:%d\n", + cmd.s.opcode, oct->vf_info[vf_id].mbox_version); + return -EOPNOTSUPP; + } + + max_rings_per_vf = CFG_GET_MAX_RPVF(oct->conf); + vf_mbox_queue = vf_id * max_rings_per_vf; + if (!oct->mbox[vf_mbox_queue]) { + dev_err(&oct->pdev->dev, "Notif obtained for bad mbox vf %d\n", vf_id); + return -EINVAL; + } + mbox = oct->mbox[vf_mbox_queue]; + + mutex_lock(&mbox->lock); + writeq(cmd.u64, mbox->pf_vf_data_reg); + mutex_unlock(&mbox->lock); + + return 0; +} + static void octep_pfvf_set_mtu(struct octep_device *oct, u32 vf_id, union octep_pfvf_mbox_word cmd, union octep_pfvf_mbox_word *rsp) @@ -327,6 +364,27 @@ static void octep_pfvf_pf_get_data(struct octep_device *oct, } } +void octep_pfvf_notify(struct octep_device *oct, struct octep_ctrl_mbox_msg *msg) +{ + union octep_pfvf_mbox_word notif = { 0 }; + struct octep_ctrl_net_f2h_req *req; + + req = (struct octep_ctrl_net_f2h_req *)msg->sg_list[0].msg; + switch (req->hdr.s.cmd) { + case OCTEP_CTRL_NET_F2H_CMD_LINK_STATUS: + notif.s_link_status.opcode = OCTEP_PFVF_MBOX_NOTIF_LINK_STATUS; + notif.s_link_status.status = req->link.state; + break; + default: + pr_info("Unknown mbox notif for vf: %u\n", + req->hdr.s.cmd); + return; + } + + notif.s.type = OCTEP_PFVF_MBOX_TYPE_CMD; + octep_send_notification(oct, msg->hdr.s.vf_idx, notif); +} + void octep_pfvf_mbox_work(struct work_struct *work) { struct octep_pfvf_mbox_wk *wk = container_of(work, struct octep_pfvf_mbox_wk, work); diff --git a/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.h b/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.h index c18a9f26fc31..0dc6eead292a 100644 --- a/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.h +++ b/drivers/net/ethernet/marvell/octeon_ep/octep_pfvf_mbox.h @@ -37,6 +37,7 @@ enum octep_pfvf_mbox_opcode { OCTEP_PFVF_MBOX_CMD_DEV_REMOVE, OCTEP_PFVF_MBOX_CMD_GET_FW_INFO, OCTEP_PFVF_MBOX_CMD_SET_OFFLOADS, + OCTEP_PFVF_MBOX_NOTIF_LINK_STATUS, OCTEP_PFVF_MBOX_CMD_MAX, }; @@ -162,4 +163,5 @@ union octep_pfvf_mbox_word { void octep_pfvf_mbox_work(struct work_struct *work); int octep_setup_pfvf_mbox(struct octep_device *oct); void octep_delete_pfvf_mbox(struct octep_device *oct); +void octep_pfvf_notify(struct octep_device *oct, struct octep_ctrl_mbox_msg *msg); #endif