From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jeff Kirsher Subject: [net-next 09/13] i40e: fix up NVM update sm error handling Date: Tue, 9 Dec 2014 03:22:46 -0800 Message-ID: <1418124170-7495-10-git-send-email-jeffrey.t.kirsher@intel.com> References: <1418124170-7495-1-git-send-email-jeffrey.t.kirsher@intel.com> Cc: Shannon Nelson , netdev@vger.kernel.org, nhorman@redhat.com, sassmann@redhat.com, jogreene@redhat.com, Jeff Kirsher To: davem@davemloft.net Return-path: Received: from mga03.intel.com ([134.134.136.65]:43348 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756692AbaLILXA (ORCPT ); Tue, 9 Dec 2014 06:23:00 -0500 In-Reply-To: <1418124170-7495-1-git-send-email-jeffrey.t.kirsher@intel.com> Sender: netdev-owner@vger.kernel.org List-ID: From: Shannon Nelson The state transitions after an error were not managed well, so these changes get us back to the INIT state or don't transition out of the INIT state after most errors. Change-ID: I90aa0e4e348dc4f58cbcdce9c5d4b7fd35981c6c Signed-off-by: Shannon Nelson Acked-by: Michal Kosiarz Tested-by: Jim Young Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_nvm.c | 26 ++++++++++++++++---------- 1 file changed, 16 insertions(+), 10 deletions(-) diff --git a/drivers/net/ethernet/intel/i40e/i40e_nvm.c b/drivers/net/ethernet/intel/i40e/i40e_nvm.c index f55e52b..f3d1c85 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_nvm.c +++ b/drivers/net/ethernet/intel/i40e/i40e_nvm.c @@ -535,7 +535,10 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw, *errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status); } else { status = i40e_nvmupd_nvm_read(hw, cmd, bytes, errno); - hw->nvmupd_state = I40E_NVMUPD_STATE_READING; + if (status) + i40e_release_nvm(hw); + else + hw->nvmupd_state = I40E_NVMUPD_STATE_READING; } break; @@ -571,7 +574,10 @@ static i40e_status i40e_nvmupd_state_init(struct i40e_hw *hw, *errno = i40e_aq_rc_to_posix(hw->aq.asq_last_status); } else { status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno); - hw->nvmupd_state = I40E_NVMUPD_STATE_WRITING; + if (status) + i40e_release_nvm(hw); + else + hw->nvmupd_state = I40E_NVMUPD_STATE_WRITING; } break; @@ -671,30 +677,30 @@ static i40e_status i40e_nvmupd_state_writing(struct i40e_hw *hw, case I40E_NVMUPD_WRITE_LCB: status = i40e_nvmupd_nvm_write(hw, cmd, bytes, errno); - if (!status) { + if (!status) hw->aq.nvm_release_on_done = true; - hw->nvmupd_state = I40E_NVMUPD_STATE_INIT; - } + hw->nvmupd_state = I40E_NVMUPD_STATE_INIT; break; case I40E_NVMUPD_CSUM_CON: status = i40e_update_nvm_checksum(hw); - if (status) + if (status) { *errno = hw->aq.asq_last_status ? i40e_aq_rc_to_posix(hw->aq.asq_last_status) : -EIO; + hw->nvmupd_state = I40E_NVMUPD_STATE_INIT; + } break; case I40E_NVMUPD_CSUM_LCB: status = i40e_update_nvm_checksum(hw); - if (status) { + if (status) *errno = hw->aq.asq_last_status ? i40e_aq_rc_to_posix(hw->aq.asq_last_status) : -EIO; - } else { + else hw->aq.nvm_release_on_done = true; - hw->nvmupd_state = I40E_NVMUPD_STATE_INIT; - } + hw->nvmupd_state = I40E_NVMUPD_STATE_INIT; break; default: -- 1.9.3