Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932887Ab3FEV5v (ORCPT ); Wed, 5 Jun 2013 17:57:51 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:37815 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932809Ab3FEVff (ORCPT ); Wed, 5 Jun 2013 17:35:35 -0400 From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Wen Xiong , Brian King , James Bottomley Subject: [ 056/127] SCSI: ipr: Need to reset adapter after the 6th EEH error Date: Wed, 5 Jun 2013 14:33:43 -0700 Message-Id: <20130605213224.389767185@linuxfoundation.org> X-Mailer: git-send-email 1.8.3.rc0.20.gb99dd2e In-Reply-To: <20130605213217.966891866@linuxfoundation.org> References: <20130605213217.966891866@linuxfoundation.org> User-Agent: quilt/0.60-5.1.1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2533 Lines: 69 3.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: "wenxiong@linux.vnet.ibm.com" commit 96b04db9f2c16e77c31ef0e17e143da1e0cbfd78 upstream. Add reset adapter after the 6th EEH errors in ipr driver. This triggers the adapter reset via the PCI config space even when the slot is frozen. Signed-off-by: Wen Xiong Acked-by: Brian King Signed-off-by: James Bottomley Signed-off-by: Greg Kroah-Hartman --- drivers/scsi/ipr.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -4777,7 +4777,7 @@ static int ipr_eh_host_reset(struct scsi ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata; spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); - if (!ioa_cfg->in_reset_reload) { + if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); dev_err(&ioa_cfg->pdev->dev, "Adapter being reset as a result of error recovery.\n"); @@ -6739,6 +6739,7 @@ static int ipr_invalid_adapter(struct ip static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) { struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; + int i; ENTER; if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { @@ -6750,6 +6751,13 @@ static int ipr_ioa_bringdown_done(struct ioa_cfg->in_reset_reload = 0; ioa_cfg->reset_retries = 0; + for (i = 0; i < ioa_cfg->hrrq_num; i++) { + spin_lock(&ioa_cfg->hrrq[i]._lock); + ioa_cfg->hrrq[i].ioa_is_dead = 1; + spin_unlock(&ioa_cfg->hrrq[i]._lock); + } + wmb(); + list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); wake_up_all(&ioa_cfg->reset_wait_q); LEAVE; @@ -8651,7 +8659,7 @@ static void ipr_pci_perm_failure(struct spin_lock_irqsave(ioa_cfg->host->host_lock, flags); if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) ioa_cfg->sdt_state = ABORT_DUMP; - ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; + ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1; ioa_cfg->in_ioa_bringdown = 1; for (i = 0; i < ioa_cfg->hrrq_num; i++) { spin_lock(&ioa_cfg->hrrq[i]._lock); -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/