From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: ARC-Seal: i=1; a=rsa-sha256; t=1527028107; cv=none; d=google.com; s=arc-20160816; b=OFmXJKZCjzkzyA3mE/HQIOnzY1p6fwCKQRz/d1XIwTx/lquLAKf+M7Qw2004lu29tB 1vu07WKFlxyMlO4mrw+Zzvh39/p01CH80gy2LxuX0wzHG98+IvcxSFZqVNch4ly3mLar racp4LzZ2+wyvWMPQw7Kc64pCOvsbxEO3dtl1n4agrEWMxRvfEcESq0pVsxfpqZRVlon QHUO9Xs+iQ3o+wRsT85gLZiiVXyEh9PobST8IyRG+EcoAR263P/xxpVpO7Ow0ZGtfCnO 0VO0+bgvq5lyIUZ0bRj69/P7RuaGzv3eVELX6D1/V42TqRk28osJZpseUdPmHip/Z4NI pT1g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=references:in-reply-to:message-id:date:subject:cc:to:from :dkim-signature:arc-authentication-results; bh=QKcKcRFDM+kZMuWTKwR5gZ8Wzy562GkTub02J8EN9g8=; b=hx9eGe3Pcgp+SvTo8U9drrhiw/VJCCM2NEQFox5h9Bbatb5Ofji2frJlpn2keejfN+ ZMpxOe0nMVetjUYeiatim0f0P97CX2+coPv6W74WMq+ync+FAKDLxj3c2yoqI9JcIhi7 N2KnHO6IKzD7I+qOtjWenctAoG0AEZw9VD5gyJn/X4sYm5NSHrg+4rkALa5LHBR38TLn 0Owrvg4O5XA2Vsz6tOVec1K5JBt6wZoBpfJHjeD3XS1BoZgw1qiVwIUyLqYAnYN8cRoL vYqo8jz8T9O2pvbqlS8mudVSDI0yx+pJPh5EEyOnHOxWgk6WjygpCLmRqix1ujNmnFpn nPLg== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=hfPJi7b5; spf=pass (google.com: domain of rajatja@google.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=rajatja@google.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com Authentication-Results: mx.google.com; dkim=pass header.i=@google.com header.s=20161025 header.b=hfPJi7b5; spf=pass (google.com: domain of rajatja@google.com designates 209.85.220.65 as permitted sender) smtp.mailfrom=rajatja@google.com; dmarc=pass (p=REJECT sp=REJECT dis=NONE) header.from=google.com X-Google-Smtp-Source: AB8JxZq0jHDHSClsU97Ym3W3HyJO+RkLXs0YY7voXo66FvqhcVf1SrWwoE1uzk4f1OBotenDmCe0OA== From: Rajat Jain To: Bjorn Helgaas , Jonathan Corbet , Philippe Ombredanne , Kate Stewart , Thomas Gleixner , Greg Kroah-Hartman , Rajat Jain , Frederick Lawler , Oza Pawandeep , Keith Busch , Gabriele Paoloni , Alexandru Gagniuc , Thomas Tai , "Steven Rostedt (VMware)" , linux-pci@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, Jes Sorensen , Kyle McMartin Cc: rajatxjain@gmail.com Subject: [PATCH 4/5] PCI/AER: Add sysfs attributes for rootport cumulative stats Date: Tue, 22 May 2018 15:28:04 -0700 Message-Id: <20180522222805.80314-5-rajatja@google.com> X-Mailer: git-send-email 2.17.0.441.gb46fe60e1d-goog In-Reply-To: <20180522222805.80314-1-rajatja@google.com> References: <20180522222805.80314-1-rajatja@google.com> X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: =?utf-8?q?1601205024446290667?= X-GMAIL-MSGID: =?utf-8?q?1601205024446290667?= X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Add sysfs attributes for rootport statistics (that are cumulative of all the ERR_* messages seen on this PCI hierarchy). Signed-off-by: Rajat Jain --- drivers/pci/pcie/aer/aerdrv.h | 2 ++ drivers/pci/pcie/aer/aerdrv_core.c | 2 ++ drivers/pci/pcie/aer/aerdrv_stats.c | 31 +++++++++++++++++++++++++++++ 3 files changed, 35 insertions(+) diff --git a/drivers/pci/pcie/aer/aerdrv.h b/drivers/pci/pcie/aer/aerdrv.h index 048fbd7c9633..77d8355551d9 100644 --- a/drivers/pci/pcie/aer/aerdrv.h +++ b/drivers/pci/pcie/aer/aerdrv.h @@ -88,6 +88,8 @@ irqreturn_t aer_irq(int irq, void *context); int pci_aer_stats_init(struct pci_dev *pdev); void pci_aer_stats_exit(struct pci_dev *pdev); void pci_dev_aer_stats_incr(struct pci_dev *pdev, struct aer_err_info *info); +void pci_rootport_aer_stats_incr(struct pci_dev *pdev, + struct aer_err_source *e_src); extern const char *aer_correctable_error_string[AER_MAX_TYPEOF_CORRECTABLE_ERRS]; diff --git a/drivers/pci/pcie/aer/aerdrv_core.c b/drivers/pci/pcie/aer/aerdrv_core.c index 42a6f913069a..0f70e22563f3 100644 --- a/drivers/pci/pcie/aer/aerdrv_core.c +++ b/drivers/pci/pcie/aer/aerdrv_core.c @@ -424,6 +424,8 @@ static void aer_isr_one_error(struct pcie_device *p_device, struct aer_rpc *rpc = get_service_data(p_device); struct aer_err_info *e_info = &rpc->e_info; + pci_rootport_aer_stats_incr(p_device->port, e_src); + /* * There is a possibility that both correctable error and * uncorrectable error being logged. Report correctable error first. diff --git a/drivers/pci/pcie/aer/aerdrv_stats.c b/drivers/pci/pcie/aer/aerdrv_stats.c index 5f0a6e144f56..a526e26c8683 100644 --- a/drivers/pci/pcie/aer/aerdrv_stats.c +++ b/drivers/pci/pcie/aer/aerdrv_stats.c @@ -60,6 +60,9 @@ static DEVICE_ATTR_RO(field) aer_stats_aggregate_attr(dev_total_cor_errs); aer_stats_aggregate_attr(dev_total_fatal_errs); aer_stats_aggregate_attr(dev_total_nonfatal_errs); +aer_stats_aggregate_attr(rootport_total_cor_errs); +aer_stats_aggregate_attr(rootport_total_fatal_errs); +aer_stats_aggregate_attr(rootport_total_nonfatal_errs); #define aer_stats_breakdown_attr(field, stats_array, strings_array) \ static ssize_t \ @@ -90,6 +93,9 @@ static struct attribute *aer_stats_attrs[] __ro_after_init = { &dev_attr_dev_total_nonfatal_errs.attr, &dev_attr_dev_breakdown_correctable.attr, &dev_attr_dev_breakdown_uncorrectable.attr, + &dev_attr_rootport_total_cor_errs.attr, + &dev_attr_rootport_total_fatal_errs.attr, + &dev_attr_rootport_total_nonfatal_errs.attr, NULL }; @@ -102,6 +108,12 @@ static umode_t aer_stats_attrs_are_visible(struct kobject *kobj, if (!pdev->aer_stats) return 0; + if ((a == &dev_attr_rootport_total_cor_errs.attr || + a == &dev_attr_rootport_total_fatal_errs.attr || + a == &dev_attr_rootport_total_nonfatal_errs.attr) && + pci_pcie_type(pdev) != PCI_EXP_TYPE_ROOT_PORT) + return 0; + return a->mode; } @@ -144,6 +156,25 @@ void pci_dev_aer_stats_incr(struct pci_dev *pdev, struct aer_err_info *info) counter[i]++; } +void pci_rootport_aer_stats_incr(struct pci_dev *pdev, + struct aer_err_source *e_src) +{ + struct aer_stats *aer_stats = pdev->aer_stats; + + if (unlikely(!aer_stats)) + return; + + if (e_src->status & PCI_ERR_ROOT_COR_RCV) + aer_stats->rootport_total_cor_errs++; + + if (e_src->status & PCI_ERR_ROOT_UNCOR_RCV) { + if (e_src->status & PCI_ERR_ROOT_FATAL_RCV) + aer_stats->rootport_total_fatal_errs++; + else + aer_stats->rootport_total_nonfatal_errs++; + } +} + int pci_aer_stats_init(struct pci_dev *pdev) { pdev->aer_stats = kzalloc(sizeof(struct aer_stats), GFP_KERNEL); -- 2.17.0.441.gb46fe60e1d-goog