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 EB86CA04B7; Wed, 14 Oct 2020 15:36:21 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id D52521DE6D; Wed, 14 Oct 2020 15:30:57 +0200 (CEST) Received: from mga01.intel.com (mga01.intel.com [192.55.52.88]) by dpdk.org (Postfix) with ESMTP id B7DDB1DE81 for ; Wed, 14 Oct 2020 15:30:42 +0200 (CEST) IronPort-SDR: t8+rP0BdrZ8fg4p79utsUReE1cL9/ND9A24x0pXWXYcnbZM9bLwzGi9aKI6mxvhZDSrPPiwN/3 XIAqLjezK0EA== X-IronPort-AV: E=McAfee;i="6000,8403,9773"; a="183621988" X-IronPort-AV: E=Sophos;i="5.77,374,1596524400"; d="scan'208";a="183621988" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Oct 2020 06:30:42 -0700 IronPort-SDR: eX12F5ooJDd84/GBOQYsLb5aF7oRZeZMgMy8cltOvDZxJze5pAbpHtCuy3H8U2N7oY/6act8Nz SeXrZt/BxilQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,374,1596524400"; d="scan'208";a="520378261" Received: from silpixa00399498.ir.intel.com (HELO silpixa00399498.ger.corp.intel.com) ([10.237.222.52]) by fmsmga006.fm.intel.com with ESMTP; 14 Oct 2020 06:30:39 -0700 From: Anatoly Burakov To: dev@dpdk.org Cc: Liang Ma , Jeff Guo , Haiyue Wang , david.hunt@intel.com, konstantin.ananyev@intel.com, jerinjacobk@gmail.com, bruce.richardson@intel.com, thomas@monjalon.net, timothy.mcdaniel@intel.com, gage.eads@intel.com, chris.macnamara@intel.com Date: Wed, 14 Oct 2020 14:30:19 +0100 Message-Id: <5119252a5a5685241f65eb71294b711c53d5db04.1602682206.git.anatoly.burakov@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: In-Reply-To: <532f45c5d79b4c30a919553d322bb66e91534466.1602258833.git.anatoly.burakov@intel.com> References: <532f45c5d79b4c30a919553d322bb66e91534466.1602258833.git.anatoly.burakov@intel.com> Subject: [dpdk-dev] [PATCH v6 06/10] 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" From: Liang Ma 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 0b98e210e7..30b3f416d4 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 29d385c062..b1d656d270 100644 --- a/drivers/net/ixgbe/ixgbe_rxtx.c +++ b/drivers/net/ixgbe/ixgbe_rxtx.c @@ -1366,6 +1366,31 @@ 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 0b5589ef4d..6b9afec655 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_ */ -- 2.17.1