From patchwork Fri Jun 14 10:24:51 2013 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sathya Perla X-Patchwork-Id: 251321 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 8583C2C008A for ; Fri, 14 Jun 2013 20:21:28 +1000 (EST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751972Ab3FNKVY (ORCPT ); Fri, 14 Jun 2013 06:21:24 -0400 Received: from cmexedge1.ext.emulex.com ([138.239.224.99]:54612 "EHLO CMEXEDGE1.ext.emulex.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751702Ab3FNKVX (ORCPT ); Fri, 14 Jun 2013 06:21:23 -0400 Received: from CMEXHTCAS1.ad.emulex.com (138.239.115.217) by CMEXEDGE1.ext.emulex.com (138.239.224.99) with Microsoft SMTP Server (TLS) id 14.2.342.3; Fri, 14 Jun 2013 03:21:49 -0700 Received: from S84.emulex.com.com (10.192.238.84) by smtp.emulex.com (138.239.115.207) with Microsoft SMTP Server id 14.2.318.4; Fri, 14 Jun 2013 03:21:20 -0700 From: Sathya Perla To: Subject: [PATCH net-next] be2net: use pci_vfs_assigned()/pci_num_vf() instead of be_find_vfs() Date: Fri, 14 Jun 2013 15:54:51 +0530 Message-ID: <1371205491-11768-1-git-send-email-sathya.perla@emulex.com> X-Mailer: git-send-email 1.7.1 MIME-Version: 1.0 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org be_find_vfs() is no longer needed as the common PCI calls provide the same functionality. Signed-off-by: Sathya Perla --- drivers/net/ethernet/emulex/benet/be_main.c | 31 +++----------------------- 1 files changed, 4 insertions(+), 27 deletions(-) diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c index 9aef457..c20a201 100644 --- a/drivers/net/ethernet/emulex/benet/be_main.c +++ b/drivers/net/ethernet/emulex/benet/be_main.c @@ -1262,30 +1262,6 @@ static int be_set_vf_tx_rate(struct net_device *netdev, return status; } -static int be_find_vfs(struct be_adapter *adapter, int vf_state) -{ - struct pci_dev *dev, *pdev = adapter->pdev; - int vfs = 0, assigned_vfs = 0, pos; - u16 offset, stride; - - pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_SRIOV); - if (!pos) - return 0; - pci_read_config_word(pdev, pos + PCI_SRIOV_VF_OFFSET, &offset); - pci_read_config_word(pdev, pos + PCI_SRIOV_VF_STRIDE, &stride); - - dev = pci_get_device(pdev->vendor, PCI_ANY_ID, NULL); - while (dev) { - if (dev->is_virtfn && pci_physfn(dev) == pdev) { - vfs++; - if (dev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) - assigned_vfs++; - } - dev = pci_get_device(pdev->vendor, PCI_ANY_ID, dev); - } - return (vf_state == ASSIGNED) ? assigned_vfs : vfs; -} - static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo) { struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]); @@ -2797,7 +2773,7 @@ static void be_vf_clear(struct be_adapter *adapter) struct be_vf_cfg *vf_cfg; u32 vf; - if (be_find_vfs(adapter, ASSIGNED)) { + if (pci_vfs_assigned(adapter->pdev)) { dev_warn(&adapter->pdev->dev, "VFs are assigned to VMs: not disabling VFs\n"); goto done; @@ -2899,7 +2875,7 @@ static int be_vf_setup(struct be_adapter *adapter) int status, old_vfs, vf; struct device *dev = &adapter->pdev->dev; - old_vfs = be_find_vfs(adapter, ENABLED); + old_vfs = pci_num_vf(adapter->pdev); if (old_vfs) { dev_info(dev, "%d VFs are already enabled\n", old_vfs); if (old_vfs != num_vfs) @@ -4200,9 +4176,10 @@ reschedule: schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000)); } +/* If any VFs are already enabled don't FLR the PF */ static bool be_reset_required(struct be_adapter *adapter) { - return be_find_vfs(adapter, ENABLED) > 0 ? false : true; + return pci_num_vf(adapter->pdev) ? false : true; } static char *mc_name(struct be_adapter *adapter)