From mboxrd@z Thu Jan 1 00:00:00 1970 From: Don Brace Subject: [PATCH v2 03/48] hpsa: turn off interrupts when kdump starts Date: Fri, 23 Jan 2015 16:41:20 -0600 Message-ID: <20150123224120.14919.21419.stgit@brunhilda> References: <20150123224020.14919.29458.stgit@brunhilda> Mime-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Return-path: Received: from g4t3426.houston.hp.com ([15.201.208.54]:38234 "EHLO g4t3426.houston.hp.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752011AbbAWWmO (ORCPT ); Fri, 23 Jan 2015 17:42:14 -0500 In-Reply-To: <20150123224020.14919.29458.stgit@brunhilda> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: scott.teel@pmcs.com, Kevin.Barnett@pmcs.com, james.bottomley@parallels.com, hch@infradead.org, Justin.Lindley@pmcs.com, brace@pmcs.com Cc: linux-scsi@vger.kernel.org From: Tomas Henzl Sometimes when the card is restarted it may cause - "irq 16: nobody cared (try booting with the "irqpoll" option)" that is likely caused so, that the card, after the hard reset finishes, pulls on the irq. Disabling the ints before or after the hpsa_kdump_hard_reset_controller fixes it. At this point we can't know in which state the card is, so using SA5_INTR_OFF + SA5_REPLY_INTR_MASK_OFFSET defines directly, instead of the function the drivers provides, seems to be apropriate. Reviewed-by: Scott Teel Signed-off-by: Don Brace --- drivers/scsi/hpsa.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index d97f455..9edacff 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -6370,6 +6370,7 @@ static void hpsa_hba_inquiry(struct ctlr_info *h) static int hpsa_init_reset_devices(struct pci_dev *pdev) { int rc, i; + void __iomem *vaddr; if (!reset_devices) return 0; @@ -6393,6 +6394,14 @@ static int hpsa_init_reset_devices(struct pci_dev *pdev) pci_set_master(pdev); + vaddr = pci_ioremap_bar(pdev, 0); + if (vaddr == NULL) { + rc = -ENOMEM; + goto out_disable; + } + writel(SA5_INTR_OFF, vaddr + SA5_REPLY_INTR_MASK_OFFSET); + iounmap(vaddr); + /* Reset the controller with a PCI power-cycle or via doorbell */ rc = hpsa_kdump_hard_reset_controller(pdev);