From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 7A553A04F1; Mon, 9 Dec 2019 06:35:25 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id AC4662C12; Mon, 9 Dec 2019 06:35:24 +0100 (CET) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by dpdk.org (Postfix) with ESMTP id 4DCED23D for ; Mon, 9 Dec 2019 06:35:21 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by orsmga106.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Dec 2019 21:35:20 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,294,1571727600"; d="scan'208";a="219908215" Received: from unknown (HELO localhost.localdomain) ([10.240.176.181]) by fmsmga001.fm.intel.com with ESMTP; 08 Dec 2019 21:35:19 -0800 From: taox.zhu@intel.com To: beilei.xing@intel.com, qi.z.zhang@intel.com Cc: dev@dpdk.org, Zhu Tao Date: Mon, 9 Dec 2019 21:59:28 +0800 Message-Id: <20191209135928.31697-1-taox.zhu@intel.com> X-Mailer: git-send-email 2.17.1 Subject: [dpdk-dev] [PATCH] net/i40e: add PF MDD event handler X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" From: Zhu Tao This patch adds a handler for malicious driver detection event. We just gave a warning log and a statistical count on the PF. Signed-off-by: Zhu Tao --- doc/guides/nics/i40e.rst | 1 + doc/guides/rel_notes/release_20_02.rst | 4 ++ drivers/net/i40e/i40e_ethdev.c | 87 +++++++++++++++++++++++++- drivers/net/i40e/i40e_ethdev.h | 1 + 4 files changed, 91 insertions(+), 2 deletions(-) diff --git a/doc/guides/nics/i40e.rst b/doc/guides/nics/i40e.rst index 38acf5906..539ea5c57 100644 --- a/doc/guides/nics/i40e.rst +++ b/doc/guides/nics/i40e.rst @@ -43,6 +43,7 @@ Features of the i40e PMD are: - Dynamic Device Personalization (DDP) - Queue region configuration - Virtual Function Port Representors +- Malicious Device Drive event catch and notify Prerequisites ------------- diff --git a/doc/guides/rel_notes/release_20_02.rst b/doc/guides/rel_notes/release_20_02.rst index 0eaa45a76..5f39006a4 100644 --- a/doc/guides/rel_notes/release_20_02.rst +++ b/doc/guides/rel_notes/release_20_02.rst @@ -56,6 +56,10 @@ New Features Also, make sure to start the actual text at the margin. ========================================================= +* **Updated the Intel i40e driver.** + + Added PF support Malicious Device Drive event catch and notify. + Removed Items ------------- diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index 5999c964b..87e638196 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -6760,6 +6760,85 @@ i40e_dev_handle_aq_msg(struct rte_eth_dev *dev) rte_free(info.msg_buf); } +static void +i40e_handle_mdd_event(struct rte_eth_dev *dev) +{ + struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct i40e_pf *pf = I40E_DEV_PRIVATE_TO_PF(dev->data->dev_private); + bool mdd_detected = false; + struct i40e_pf_vf *vf; + uint32_t reg; + int i; + + /* find what triggered the MDD event */ + reg = I40E_READ_REG(hw, I40E_GL_MDET_TX); + if (reg & I40E_GL_MDET_TX_VALID_MASK) { + uint8_t pf_num = (reg & I40E_GL_MDET_TX_PF_NUM_MASK) >> + I40E_GL_MDET_TX_PF_NUM_SHIFT; + uint16_t vf_num = (reg & I40E_GL_MDET_TX_VF_NUM_MASK) >> + I40E_GL_MDET_TX_VF_NUM_SHIFT; + uint8_t event = (reg & I40E_GL_MDET_TX_EVENT_MASK) >> + I40E_GL_MDET_TX_EVENT_SHIFT; + uint16_t queue = ((reg & I40E_GL_MDET_TX_QUEUE_MASK) >> + I40E_GL_MDET_TX_QUEUE_SHIFT) - + hw->func_caps.base_queue; + PMD_DRV_LOG(WARNING, "Malicious Driver Detection event 0x%02x on TX " + "queue %d PF number 0x%02x VF number 0x%02x device %s\n", + event, queue, pf_num, vf_num, dev->data->name); + I40E_WRITE_REG(hw, I40E_GL_MDET_TX, 0xffffffff); + mdd_detected = true; + } + reg = I40E_READ_REG(hw, I40E_GL_MDET_RX); + if (reg & I40E_GL_MDET_RX_VALID_MASK) { + uint8_t func = (reg & I40E_GL_MDET_RX_FUNCTION_MASK) >> + I40E_GL_MDET_RX_FUNCTION_SHIFT; + uint8_t event = (reg & I40E_GL_MDET_RX_EVENT_MASK) >> + I40E_GL_MDET_RX_EVENT_SHIFT; + uint16_t queue = ((reg & I40E_GL_MDET_RX_QUEUE_MASK) >> + I40E_GL_MDET_RX_QUEUE_SHIFT) - + hw->func_caps.base_queue; + + PMD_DRV_LOG(WARNING, "Malicious Driver Detection event 0x%02x on RX " + "queue %d of function 0x%02x device %s\n", + event, queue, func, dev->data->name); + I40E_WRITE_REG(hw, I40E_GL_MDET_RX, 0xffffffff); + mdd_detected = true; + } + + if (mdd_detected) { + reg = I40E_READ_REG(hw, I40E_PF_MDET_TX); + if (reg & I40E_PF_MDET_TX_VALID_MASK) { + I40E_WRITE_REG(hw, I40E_PF_MDET_TX, 0xFFFF); + PMD_DRV_LOG(WARNING, "TX driver issue detected on PF\n"); + } + reg = I40E_READ_REG(hw, I40E_PF_MDET_RX); + if (reg & I40E_PF_MDET_RX_VALID_MASK) { + I40E_WRITE_REG(hw, I40E_PF_MDET_RX, 0xFFFF); + PMD_DRV_LOG(WARNING, "RX driver issue detected on PF\n"); + } + } + + /* see if one of the VFs needs its hand slapped */ + for (i = 0; i < pf->vf_num && mdd_detected; i++) { + vf = &pf->vfs[i]; + reg = I40E_READ_REG(hw, I40E_VP_MDET_TX(i)); + if (reg & I40E_VP_MDET_TX_VALID_MASK) { + I40E_WRITE_REG(hw, I40E_VP_MDET_TX(i), 0xFFFF); + vf->num_mdd_events++; + PMD_DRV_LOG(WARNING, "TX driver issue detected on VF %d %lu times\n", + i, vf->num_mdd_events); + } + + reg = I40E_READ_REG(hw, I40E_VP_MDET_RX(i)); + if (reg & I40E_VP_MDET_RX_VALID_MASK) { + I40E_WRITE_REG(hw, I40E_VP_MDET_RX(i), 0xFFFF); + vf->num_mdd_events++; + PMD_DRV_LOG(WARNING, "RX driver issue detected on VF %d %lu times\n", + i, vf->num_mdd_events); + } + } +} + /** * Interrupt handler triggered by NIC for handling * specific interrupt. @@ -6792,8 +6871,10 @@ i40e_dev_interrupt_handler(void *param) } if (icr0 & I40E_PFINT_ICR0_ECC_ERR_MASK) PMD_DRV_LOG(ERR, "ICR0: unrecoverable ECC error"); - if (icr0 & I40E_PFINT_ICR0_MAL_DETECT_MASK) + if (icr0 & I40E_PFINT_ICR0_MAL_DETECT_MASK) { PMD_DRV_LOG(ERR, "ICR0: malicious programming detected"); + i40e_handle_mdd_event(dev); + } if (icr0 & I40E_PFINT_ICR0_GRST_MASK) PMD_DRV_LOG(INFO, "ICR0: global reset requested"); if (icr0 & I40E_PFINT_ICR0_PCI_EXCEPTION_MASK) @@ -6837,8 +6918,10 @@ i40e_dev_alarm_handler(void *param) goto done; if (icr0 & I40E_PFINT_ICR0_ECC_ERR_MASK) PMD_DRV_LOG(ERR, "ICR0: unrecoverable ECC error"); - if (icr0 & I40E_PFINT_ICR0_MAL_DETECT_MASK) + if (icr0 & I40E_PFINT_ICR0_MAL_DETECT_MASK) { PMD_DRV_LOG(ERR, "ICR0: malicious programming detected"); + i40e_handle_mdd_event(dev); + } if (icr0 & I40E_PFINT_ICR0_GRST_MASK) PMD_DRV_LOG(INFO, "ICR0: global reset requested"); if (icr0 & I40E_PFINT_ICR0_PCI_EXCEPTION_MASK) diff --git a/drivers/net/i40e/i40e_ethdev.h b/drivers/net/i40e/i40e_ethdev.h index 295ad593b..b14521017 100644 --- a/drivers/net/i40e/i40e_ethdev.h +++ b/drivers/net/i40e/i40e_ethdev.h @@ -426,6 +426,7 @@ struct i40e_pf_vf { /* version of the virtchnl from VF */ struct virtchnl_version_info version; uint32_t request_caps; /* offload caps requested from VF */ + uint64_t num_mdd_events; /* num of mdd events detected */ /* * Variables for store the arrival timestamp of VF messages. -- 2.17.1