From patchwork Wed Jun 24 02:55:53 2015 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Taku Izumi X-Patchwork-Id: 6664791 Return-Path: X-Original-To: patchwork-linux-acpi@patchwork.kernel.org Delivered-To: patchwork-parsemail@patchwork1.web.kernel.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.136]) by patchwork1.web.kernel.org (Postfix) with ESMTP id 3AF9A9F380 for ; Wed, 24 Jun 2015 03:00:52 +0000 (UTC) Received: from mail.kernel.org (localhost [127.0.0.1]) by mail.kernel.org (Postfix) with ESMTP id 521072065A for ; Wed, 24 Jun 2015 03:00:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6032320637 for ; Wed, 24 Jun 2015 03:00:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933901AbbFXDAp (ORCPT ); Tue, 23 Jun 2015 23:00:45 -0400 Received: from mgwym02.jp.fujitsu.com ([211.128.242.41]:48763 "EHLO mgwym02.jp.fujitsu.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S933878AbbFXDAf (ORCPT ); Tue, 23 Jun 2015 23:00:35 -0400 Received: from yt-mxq.gw.nic.fujitsu.com (unknown [192.168.229.66]) by mgwym02.jp.fujitsu.com with smtp id 471f_430d_16c6cddd_3e4e_4974_a701_cf077f80e7b0; Wed, 24 Jun 2015 12:00:32 +0900 Received: from m3051.s.css.fujitsu.com (m3051.s.css.fujitsu.com [10.134.21.209]) by yt-mxq.gw.nic.fujitsu.com (Postfix) with ESMTP id A6B83AC0A05; Wed, 24 Jun 2015 12:00:30 +0900 (JST) Received: from localhost.localdomain (unknown [10.124.196.197]) by m3051.s.css.fujitsu.com (Postfix) with ESMTP id 55B091E7; Wed, 24 Jun 2015 12:00:30 +0900 (JST) From: Taku Izumi To: netdev@vger.kernel.org, davem@davemloft.net Cc: platform-driver-x86@vger.kernel.org, dvhart@infradead.org, rkhan@redhat.com, alexander.h.duyck@redhat.com, linux-acpi@vger.kernel.org, joe@perches.com, sergei.shtylyov@cogentembedded.com, stephen@networkplumber.org, yasu.isimatu@gmail.com, Taku Izumi Subject: [PATCH v2 21/22] fjes: handle receive cancellation request interrupt Date: Wed, 24 Jun 2015 11:55:53 +0900 Message-Id: <1435114554-7151-22-git-send-email-izumi.taku@jp.fujitsu.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1435114351-6961-1-git-send-email-izumi.taku@jp.fujitsu.com> References: <1435114351-6961-1-git-send-email-izumi.taku@jp.fujitsu.com> X-TM-AS-MML: disable Sender: linux-acpi-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org X-Spam-Status: No, score=-8.3 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_HI, RP_MATCHES_RCVD, UNPARSEABLE_RELAY autolearn=unavailable version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on mail.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This patch adds implementation of handling IRQ of other receiver's receive cancellation request. Signed-off-by: Taku Izumi --- drivers/net/fjes/fjes_main.c | 79 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 79 insertions(+) diff --git a/drivers/net/fjes/fjes_main.c b/drivers/net/fjes/fjes_main.c index df4a292..1db1a7d 100644 --- a/drivers/net/fjes/fjes_main.c +++ b/drivers/net/fjes/fjes_main.c @@ -826,6 +826,75 @@ static int fjes_vlan_rx_kill_vid(struct net_device *netdev, return 0; } +static void fjes_txrx_stop_req_irq(struct fjes_adapter *adapter, + int src_epid) +{ + struct fjes_hw *hw = &adapter->hw; + enum ep_partner_status status; + + status = fjes_hw_get_partner_ep_status(hw, src_epid); + switch (status) { + case EP_PARTNER_UNSHARE: + default: + break; + case EP_PARTNER_COMPLETE: + break; + case EP_PARTNER_WAITING: + if (src_epid < hw->my_epid) { + hw->ep_shm_info[src_epid].tx.info->v1i.rx_status |= + FJES_RX_STOP_REQ_DONE; + + clear_bit(src_epid, &hw->txrx_stop_req_bit); + set_bit(src_epid, &adapter->unshare_watch_bitmask); + + if (!work_pending(&adapter->unshare_watch_task)) + queue_work(adapter->control_wq, + &adapter->unshare_watch_task); + } + break; + case EP_PARTNER_SHARED: + if (hw->ep_shm_info[src_epid].rx.info->v1i.rx_status + & FJES_RX_STOP_REQ_REQUEST) { + set_bit(src_epid, &hw->epstop_req_bit); + if (!work_pending(&hw->epstop_task)) + queue_work(adapter->control_wq, + &hw->epstop_task); + } + break; + } +} + +static void fjes_stop_req_irq(struct fjes_adapter *adapter, int src_epid) +{ + struct fjes_hw *hw = &adapter->hw; + enum ep_partner_status status; + + set_bit(src_epid, &hw->hw_info.buffer_unshare_reserve_bit); + + status = fjes_hw_get_partner_ep_status(hw, src_epid); + switch (status) { + case EP_PARTNER_WAITING: + hw->ep_shm_info[src_epid].tx.info->v1i.rx_status |= + FJES_RX_STOP_REQ_DONE; + clear_bit(src_epid, &hw->txrx_stop_req_bit); + /* fall through */ + case EP_PARTNER_UNSHARE: + case EP_PARTNER_COMPLETE: + default: + set_bit(src_epid, &adapter->unshare_watch_bitmask); + if (!work_pending(&adapter->unshare_watch_task)) + queue_work(adapter->control_wq, + &adapter->unshare_watch_task); + break; + case EP_PARTNER_SHARED: + set_bit(src_epid, &hw->epstop_req_bit); + + if (!work_pending(&hw->epstop_task)) + queue_work(adapter->control_wq, &hw->epstop_task); + break; + } +} + static void fjes_update_zone_irq(struct fjes_adapter *adapter, int src_epid) { @@ -848,6 +917,16 @@ static irqreturn_t fjes_intr(int irq, void *data) if (icr & REG_ICTL_MASK_RX_DATA) fjes_rx_irq(adapter, icr & REG_IS_MASK_EPID); + if (icr & REG_ICTL_MASK_DEV_STOP_REQ) + fjes_stop_req_irq(adapter, icr & REG_IS_MASK_EPID); + + if (icr & REG_ICTL_MASK_TXRX_STOP_REQ) + fjes_txrx_stop_req_irq(adapter, icr & REG_IS_MASK_EPID); + + if (icr & REG_ICTL_MASK_TXRX_STOP_DONE) + fjes_hw_set_irqmask(hw, + REG_ICTL_MASK_TXRX_STOP_DONE, true); + if (icr & REG_ICTL_MASK_INFO_UPDATE) fjes_update_zone_irq(adapter, icr & REG_IS_MASK_EPID);