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Mon, 13 May 2024 17:56:11 GMT Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C0EF458054; Mon, 13 May 2024 17:56:09 +0000 (GMT) Received: from smtpav06.wdc07v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2391358067; Mon, 13 May 2024 17:56:09 +0000 (GMT) Received: from linux.vnet.ibm.com (unknown [9.41.99.196]) by smtpav06.wdc07v.mail.ibm.com (Postfix) with ESMTP; Mon, 13 May 2024 17:56:09 +0000 (GMT) From: Thinh Tran To: netdev@vger.kernel.org, kuba@kernel.org, anthony.l.nguyen@intel.com, aleksandr.loktionov@intel.com, przemyslaw.kitszel@intel.com Cc: jesse.brandeburg@intel.com, davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, intel-wired-lan@lists.osuosl.org, rob.thomas@ibm.com, Thinh Tran Subject: [PATCH iwl-net V2,2/2] i40e: Fully suspend and resume IO operations in EEH case Date: Mon, 13 May 2024 12:55:49 -0500 Message-Id: <20240513175549.609-3-thinhtr@linux.ibm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20240513175549.609-1-thinhtr@linux.ibm.com> References: <20240513175549.609-1-thinhtr@linux.ibm.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: nvZ3nr-tanMZ4grtAlepebQWKtkv0iw8 X-Proofpoint-ORIG-GUID: mtXiZSjgOOe0vfitLn2ee893UbV1XWN1 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.650,FMLib:17.11.176.26 definitions=2024-05-13_12,2024-05-10_02,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 suspectscore=0 adultscore=0 impostorscore=0 mlxscore=0 priorityscore=1501 phishscore=0 spamscore=0 lowpriorityscore=0 bulkscore=0 mlxlogscore=999 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2405010000 definitions=main-2405130119 When EEH events occurs, the callback functions in the i40e, which are managed by the EEH driver, will completely suspend and resume all IO operations. Fixes: a5f3d2c17b07 ("powerpc/pseries/pci: Add MSI domains") Tested-by: Robert Thomas Signed-off-by: Thinh Tran --- drivers/net/ethernet/intel/i40e/i40e_main.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 281c8ec27af2..9f71a61e0c52 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -11138,6 +11138,8 @@ static void i40e_reset_and_rebuild(struct i40e_pf *pf, bool reinit, ret = i40e_reset(pf); if (!ret) i40e_rebuild(pf, reinit, lock_acquired); + else + dev_err(&pf->pdev->dev, "%s: i40e_reset() FAILED", __func__); } /** @@ -16459,7 +16461,7 @@ static pci_ers_result_t i40e_pci_error_detected(struct pci_dev *pdev, /* shutdown all operations */ if (!test_bit(__I40E_SUSPENDED, pf->state)) - i40e_prep_for_reset(pf); + i40e_io_suspend(pf); /* Request a slot reset */ return PCI_ERS_RESULT_NEED_RESET; @@ -16481,7 +16483,8 @@ static pci_ers_result_t i40e_pci_error_slot_reset(struct pci_dev *pdev) u32 reg; dev_dbg(&pdev->dev, "%s\n", __func__); - if (pci_enable_device_mem(pdev)) { + /* enable I/O and memory of the device */ + if (pci_enable_device(pdev)) { dev_info(&pdev->dev, "Cannot re-enable PCI device after reset.\n"); result = PCI_ERS_RESULT_DISCONNECT; @@ -16544,7 +16547,7 @@ static void i40e_pci_error_resume(struct pci_dev *pdev) if (test_bit(__I40E_SUSPENDED, pf->state)) return; - i40e_handle_reset_warning(pf, false); + i40e_io_resume(pf); } /** -- 2.25.1