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 77027A09F6; Thu, 17 Dec 2020 15:09:09 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id B0C1FCA95; Thu, 17 Dec 2020 15:06:30 +0100 (CET) Received: from mga09.intel.com (mga09.intel.com [134.134.136.24]) by dpdk.org (Postfix) with ESMTP id 8589FCA3E for ; Thu, 17 Dec 2020 15:06:22 +0100 (CET) IronPort-SDR: zZKnuk1fREpFrVntG669ee2D/aaCVVcDW5BW0+jQIlhKESHFclaOK6IME+7U8WijDEcwftMWQY F9hKMkoZ3R0Q== X-IronPort-AV: E=McAfee;i="6000,8403,9837"; a="175398849" X-IronPort-AV: E=Sophos;i="5.78,428,1599548400"; d="scan'208";a="175398849" Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 17 Dec 2020 06:06:07 -0800 IronPort-SDR: jjliKerMGTEPtOXleMulNZ7G1smAHD62iACEjBUe0IjXPeby15Vqt4foYQCXZAy1l+vXTePioP HMA/W0lC+FMg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.78,428,1599548400"; d="scan'208";a="557888441" Received: from silpixa00399498.ir.intel.com (HELO silpixa00399498.ger.corp.intel.com) ([10.237.222.52]) by fmsmga006.fm.intel.com with ESMTP; 17 Dec 2020 06:06:04 -0800 From: Anatoly Burakov To: dev@dpdk.org Cc: Liang Ma , Beilei Xing , Jeff Guo , thomas@monjalon.net, konstantin.ananyev@intel.com, gage.eads@intel.com, timothy.mcdaniel@intel.com, david.hunt@intel.com, bruce.richardson@intel.com, chris.macnamara@intel.com Date: Thu, 17 Dec 2020 14:05:39 +0000 Message-Id: X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: References: <1604315406-27669-1-git-send-email-liang.j.ma@intel.com> Subject: [dpdk-dev] [PATCH v12 09/11] net/i40e: implement power management API 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: Liang Ma Implement support for the power management API by implementing a `get_monitor_addr` function that will return an address of an RX ring's status bit. Signed-off-by: Liang Ma Signed-off-by: Anatoly Burakov Acked-by: Konstantin Ananyev Acked-by: Jeff Guo --- drivers/net/i40e/i40e_ethdev.c | 1 + drivers/net/i40e/i40e_rxtx.c | 25 +++++++++++++++++++++++++ drivers/net/i40e/i40e_rxtx.h | 1 + 3 files changed, 27 insertions(+) diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c index f54769c29d..af2577a140 100644 --- a/drivers/net/i40e/i40e_ethdev.c +++ b/drivers/net/i40e/i40e_ethdev.c @@ -510,6 +510,7 @@ static const struct eth_dev_ops i40e_eth_dev_ops = { .mtu_set = i40e_dev_mtu_set, .tm_ops_get = i40e_tm_ops_get, .tx_done_cleanup = i40e_tx_done_cleanup, + .get_monitor_addr = i40e_get_monitor_addr, }; /* store statistics names and its offset in stats structure */ diff --git a/drivers/net/i40e/i40e_rxtx.c b/drivers/net/i40e/i40e_rxtx.c index 5df9a9df56..0b4220fc9c 100644 --- a/drivers/net/i40e/i40e_rxtx.c +++ b/drivers/net/i40e/i40e_rxtx.c @@ -72,6 +72,31 @@ #define I40E_TX_OFFLOAD_NOTSUP_MASK \ (PKT_TX_OFFLOAD_MASK ^ I40E_TX_OFFLOAD_MASK) +int +i40e_get_monitor_addr(void *rx_queue, struct rte_power_monitor_cond *pmc) +{ + struct i40e_rx_queue *rxq = rx_queue; + volatile union i40e_rx_desc *rxdp; + uint16_t desc; + + desc = rxq->rx_tail; + rxdp = &rxq->rx_ring[desc]; + /* watch for changes in status bit */ + pmc->addr = &rxdp->wb.qword1.status_error_len; + + /* + * we expect the DD bit to be set to 1 if this descriptor was already + * written to. + */ + pmc->val = rte_cpu_to_le_64(1 << I40E_RX_DESC_STATUS_DD_SHIFT); + pmc->mask = rte_cpu_to_le_64(1 << I40E_RX_DESC_STATUS_DD_SHIFT); + + /* registers are 64-bit */ + pmc->data_sz = sizeof(uint64_t); + + return 0; +} + static inline void i40e_rxd_to_vlan_tci(struct rte_mbuf *mb, volatile union i40e_rx_desc *rxdp) { diff --git a/drivers/net/i40e/i40e_rxtx.h b/drivers/net/i40e/i40e_rxtx.h index 57d7b4160b..e1494525ce 100644 --- a/drivers/net/i40e/i40e_rxtx.h +++ b/drivers/net/i40e/i40e_rxtx.h @@ -248,6 +248,7 @@ uint16_t i40e_recv_scattered_pkts_vec_avx2(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts); uint16_t i40e_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); +int i40e_get_monitor_addr(void *rx_queue, struct rte_power_monitor_cond *pmc); /* For each value it means, datasheet of hardware can tell more details * -- 2.17.1