From patchwork Tue May 6 07:46:49 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Rajesh Borundia X-Patchwork-Id: 346074 X-Patchwork-Delegate: davem@davemloft.net Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by ozlabs.org (Postfix) with ESMTP id AF65D1402CF for ; Tue, 6 May 2014 18:15:45 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S934332AbaEFIPi (ORCPT ); Tue, 6 May 2014 04:15:38 -0400 Received: from mx0a-0016ce01.pphosted.com ([67.231.148.157]:40286 "EHLO mx0a-0016ce01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S934244AbaEFIPf (ORCPT ); Tue, 6 May 2014 04:15:35 -0400 Received: from pps.filterd (m0045602.ppops.net [127.0.0.1]) by mx0a-0016ce01.pphosted.com (8.14.5/8.14.5) with SMTP id s468DMh5008352; Tue, 6 May 2014 01:15:34 -0700 Received: from avcashub1.qlogic.com (avcashub1.qlogic.com [198.70.193.115]) by mx0a-0016ce01.pphosted.com with ESMTP id 1kj1t01y2c-1 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=NOT); Tue, 06 May 2014 01:15:34 -0700 Received: from dut6217.mv.qlogic.com (172.29.56.217) by qlc.com (10.1.4.190) with Microsoft SMTP Server id 14.2.347.0; Tue, 6 May 2014 01:15:33 -0700 Received: by dut6217.mv.qlogic.com (Postfix, from userid 0) id 89C7D5221DC; Tue, 6 May 2014 03:46:55 -0400 (EDT) From: Rajesh Borundia To: CC: , , Shahed Shaikh Subject: [PATCH net 2/2] qlcnic: Set real_num_{tx|rx}_queues properly Date: Tue, 6 May 2014 03:46:49 -0400 Message-ID: <1399362409-17039-3-git-send-email-rajesh.borundia@qlogic.com> X-Mailer: git-send-email 1.7.7 In-Reply-To: <1399362409-17039-1-git-send-email-rajesh.borundia@qlogic.com> References: <1399362409-17039-1-git-send-email-rajesh.borundia@qlogic.com> MIME-Version: 1.0 X-Proofpoint-Virus-Version: vendor=nai engine=5600 definitions=7429 signatures=670433 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 spamscore=0 suspectscore=1 phishscore=0 adultscore=0 bulkscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=7.0.1-1402240000 definitions=main-1405060138 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org From: Shahed Shaikh Do not set netdev->real_num_tx_queues directly, let netif_set_real_num_tx_queues() take care of it. Do not overwrite netdev->num_tx_queues everytime when driver changes its Tx ring size through ethtool -L and also notify stack to update number of Rx queues. Signed-off-by: Shahed Shaikh --- drivers/net/ethernet/qlogic/qlcnic/qlcnic.h | 16 ------- drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c | 49 +++++++++++++++++++++- 2 files changed, 47 insertions(+), 18 deletions(-) diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h index 7b52a88..f785d01 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic.h @@ -1719,22 +1719,6 @@ static inline u32 qlcnic_tx_avail(struct qlcnic_host_tx_ring *tx_ring) tx_ring->producer; } -static inline int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter, - struct net_device *netdev) -{ - int err; - - netdev->num_tx_queues = adapter->drv_tx_rings; - netdev->real_num_tx_queues = adapter->drv_tx_rings; - - err = netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings); - if (err) - netdev_err(netdev, "failed to set %d Tx queues\n", - adapter->drv_tx_rings); - - return err; -} - struct qlcnic_nic_template { int (*config_bridged_mode) (struct qlcnic_adapter *, u32); int (*config_led) (struct qlcnic_adapter *, u32, u32); diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c index be78951..7e55e88 100644 --- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c +++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c @@ -2206,6 +2206,31 @@ static void qlcnic_82xx_set_mac_filter_count(struct qlcnic_adapter *adapter) ahw->max_uc_count = count; } +static int qlcnic_set_real_num_queues(struct qlcnic_adapter *adapter, + u8 tx_queues, u8 rx_queues) +{ + struct net_device *netdev = adapter->netdev; + int err = 0; + + if (tx_queues) { + err = netif_set_real_num_tx_queues(netdev, tx_queues); + if (err) { + netdev_err(netdev, "failed to set %d Tx queues\n", + tx_queues); + return err; + } + } + + if (rx_queues) { + err = netif_set_real_num_rx_queues(netdev, rx_queues); + if (err) + netdev_err(netdev, "failed to set %d Rx queues\n", + rx_queues); + } + + return err; +} + int qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev, int pci_using_dac) @@ -2269,7 +2294,8 @@ qlcnic_setup_netdev(struct qlcnic_adapter *adapter, struct net_device *netdev, netdev->priv_flags |= IFF_UNICAST_FLT; netdev->irq = adapter->msix_entries[0].vector; - err = qlcnic_set_real_num_queues(adapter, netdev); + err = qlcnic_set_real_num_queues(adapter, adapter->drv_tx_rings, + adapter->drv_sds_rings); if (err) return err; @@ -3982,12 +4008,21 @@ int qlcnic_validate_rings(struct qlcnic_adapter *adapter, __u32 ring_cnt, int qlcnic_setup_rings(struct qlcnic_adapter *adapter) { struct net_device *netdev = adapter->netdev; + u8 tx_rings, rx_rings; int err; if (test_bit(__QLCNIC_RESETTING, &adapter->state)) return -EBUSY; + tx_rings = adapter->drv_tss_rings; + rx_rings = adapter->drv_rss_rings; + netif_device_detach(netdev); + + err = qlcnic_set_real_num_queues(adapter, tx_rings, rx_rings); + if (err) + goto done; + if (netif_running(netdev)) __qlcnic_down(adapter, netdev); @@ -4007,7 +4042,17 @@ int qlcnic_setup_rings(struct qlcnic_adapter *adapter) return err; } - netif_set_real_num_tx_queues(netdev, adapter->drv_tx_rings); + /* Check if we need to update real_num_{tx|rx}_queues because + * qlcnic_setup_intr() may change Tx/Rx rings size + */ + if ((tx_rings != adapter->drv_tx_rings) || + (rx_rings != adapter->drv_sds_rings)) { + err = qlcnic_set_real_num_queues(adapter, + adapter->drv_tx_rings, + adapter->drv_sds_rings); + if (err) + goto done; + } if (qlcnic_83xx_check(adapter)) { qlcnic_83xx_initialize_nic(adapter, 1);