From patchwork Mon Nov 2 11:10:02 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Liang, Ma" X-Patchwork-Id: 83383 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from dpdk.org (dpdk.org [92.243.14.124]) by inbox.dpdk.org (Postfix) with ESMTP id 93090A04E7; Mon, 2 Nov 2020 12:11:55 +0100 (CET) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 019D8C802; Mon, 2 Nov 2020 12:11:39 +0100 (CET) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by dpdk.org (Postfix) with ESMTP id 22266C7F4 for ; Mon, 2 Nov 2020 12:11:36 +0100 (CET) IronPort-SDR: 101dbR2BhPKjQ/i6+NbgIIBbglkY7Aj4KDdUVF/I23dOeAPS9uWSKrtSG+yq9H39kns/Yk5W/W f3WMe2pexmTQ== X-IronPort-AV: E=McAfee;i="6000,8403,9792"; a="233037661" X-IronPort-AV: E=Sophos;i="5.77,444,1596524400"; d="scan'208";a="233037661" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga007.fm.intel.com ([10.253.24.52]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Nov 2020 03:11:36 -0800 IronPort-SDR: V6sVN9V5tYfv3OLGkqb1M/UCrvvLVES7Frt49CzsOaClu3GsSyxssDYq36HM1njqdzLaIjWY4B tSpQ5xH7tRrQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,444,1596524400"; d="scan'208";a="305656379" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by fmsmga007.fm.intel.com with ESMTP; 02 Nov 2020 03:11:32 -0800 Received: from sivswdev09.ir.intel.com (sivswdev09.ir.intel.com [10.237.217.48]) by irvmail001.ir.intel.com (8.14.3/8.13.6/MailSET/Hub) with ESMTP id 0A2BBW4j011977; Mon, 2 Nov 2020 11:11:32 GMT Received: from sivswdev09.ir.intel.com (localhost [127.0.0.1]) by sivswdev09.ir.intel.com with ESMTP id 0A2BBWo5028174; Mon, 2 Nov 2020 11:11:32 GMT Received: (from lma25@localhost) by sivswdev09.ir.intel.com with LOCAL id 0A2BBWH9028167; Mon, 2 Nov 2020 11:11:32 GMT From: Liang Ma To: dev@dpdk.org Cc: ruifeng.wang@arm.com, haiyue.wang@intel.com, bruce.richardson@intel.com, konstantin.ananyev@intel.com, david.hunt@intel.com, jerinjacobk@gmail.com, nhorman@tuxdriver.com, thomas@monjalon.net, timothy.mcdaniel@intel.com, gage.eads@intel.com, mw@semihalf.com, gtzalik@amazon.com, ajit.khaparde@broadcom.com, hkalra@marvell.com, johndale@cisco.com, matan@nvidia.com, yongwang@vmware.com, Anatoly Burakov , Jeff Guo Date: Mon, 2 Nov 2020 11:10:02 +0000 Message-Id: <1604315406-27669-4-git-send-email-liang.j.ma@intel.com> X-Mailer: git-send-email 1.7.7.4 In-Reply-To: <1604315406-27669-1-git-send-email-liang.j.ma@intel.com> References: <2772eb151ccba5cc17186e6161d8834176924753.1590598121.git.anatoly.burakov@intel.com> <1604315406-27669-1-git-send-email-liang.j.ma@intel.com> Subject: [dpdk-dev] [PATCH v11 3/6] net/ixgbe: 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" Implement support for the power management API by implementing a `get_wake_addr` function that will return an address of an RX ring's status bit. Signed-off-by: Anatoly Burakov Signed-off-by: Liang Ma Acked-by: Konstantin Ananyev --- drivers/net/ixgbe/ixgbe_ethdev.c | 1 + drivers/net/ixgbe/ixgbe_rxtx.c | 25 +++++++++++++++++++++++++ drivers/net/ixgbe/ixgbe_rxtx.h | 2 ++ 3 files changed, 28 insertions(+) diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index 00101c2eec..fcc4026372 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -588,6 +588,7 @@ static const struct eth_dev_ops ixgbe_eth_dev_ops = { .udp_tunnel_port_del = ixgbe_dev_udp_tunnel_port_del, .tm_ops_get = ixgbe_tm_ops_get, .tx_done_cleanup = ixgbe_dev_tx_done_cleanup, + .get_wake_addr = ixgbe_get_wake_addr, }; /* diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c index 6cfbb582e2..db94b9d05d 100644 --- a/drivers/net/ixgbe/ixgbe_rxtx.c +++ b/drivers/net/ixgbe/ixgbe_rxtx.c @@ -1369,6 +1369,31 @@ const uint32_t RTE_PTYPE_INNER_L3_IPV4_EXT | RTE_PTYPE_INNER_L4_UDP, }; +int ixgbe_get_wake_addr(void *rx_queue, volatile void **tail_desc_addr, + uint64_t *expected, uint64_t *mask, uint8_t *data_sz) +{ + volatile union ixgbe_adv_rx_desc *rxdp; + struct ixgbe_rx_queue *rxq = rx_queue; + uint16_t desc; + + desc = rxq->rx_tail; + rxdp = &rxq->rx_ring[desc]; + /* watch for changes in status bit */ + *tail_desc_addr = &rxdp->wb.upper.status_error; + + /* + * we expect the DD bit to be set to 1 if this descriptor was already + * written to. + */ + *expected = rte_cpu_to_le_32(IXGBE_RXDADV_STAT_DD); + *mask = rte_cpu_to_le_32(IXGBE_RXDADV_STAT_DD); + + /* the registers are 32-bit */ + *data_sz = 4; + + return 0; +} + /* @note: fix ixgbe_dev_supported_ptypes_get() if any change here. */ static inline uint32_t ixgbe_rxd_pkt_info_to_pkt_type(uint32_t pkt_info, uint16_t ptype_mask) diff --git a/drivers/net/ixgbe/ixgbe_rxtx.h b/drivers/net/ixgbe/ixgbe_rxtx.h index 6d2f7c9da3..1ef0b05e66 100644 --- a/drivers/net/ixgbe/ixgbe_rxtx.h +++ b/drivers/net/ixgbe/ixgbe_rxtx.h @@ -299,5 +299,7 @@ uint64_t ixgbe_get_tx_port_offloads(struct rte_eth_dev *dev); uint64_t ixgbe_get_rx_queue_offloads(struct rte_eth_dev *dev); uint64_t ixgbe_get_rx_port_offloads(struct rte_eth_dev *dev); uint64_t ixgbe_get_tx_queue_offloads(struct rte_eth_dev *dev); +int ixgbe_get_wake_addr(void *rx_queue, volatile void **tail_desc_addr, + uint64_t *expected, uint64_t *mask, uint8_t *data_sz); #endif /* _IXGBE_RXTX_H_ */