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 78797A04BF; Thu, 3 Sep 2020 18:10:40 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 072C21C19C; Thu, 3 Sep 2020 18:07:26 +0200 (CEST) Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 2EDD61C1B4 for ; Thu, 3 Sep 2020 18:07:24 +0200 (CEST) IronPort-SDR: hAhLepB3PUWoacVg9lPD1Mc+o6cGu1wCZpMZgWkjUrQF1INPnXmTnRi3qhox+KCMFudjr1J32m MN+V3exey7ww== X-IronPort-AV: E=McAfee;i="6000,8403,9733"; a="242426605" X-IronPort-AV: E=Sophos;i="5.76,387,1592895600"; d="scan'208";a="242426605" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Sep 2020 09:07:23 -0700 IronPort-SDR: g63ossOcJIC8egdnecXanV4DuWA7BNPYV2h5C6ik+sgBQaP7XMZHQpbBNMmlMIlyRCBmmnL2d8 rZt/C2exBlfw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.76,387,1592895600"; d="scan'208";a="298086604" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by orsmga003.jf.intel.com with ESMTP; 03 Sep 2020 09:07:16 -0700 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 083G7Frs032338; Thu, 3 Sep 2020 17:07:15 +0100 Received: from sivswdev09.ir.intel.com (localhost [127.0.0.1]) by sivswdev09.ir.intel.com with ESMTP id 083G7F9c030557; Thu, 3 Sep 2020 17:07:15 +0100 Received: (from lma25@localhost) by sivswdev09.ir.intel.com with LOCAL id 083G7FID030553; Thu, 3 Sep 2020 17:07:15 +0100 From: Liang Ma To: dev@dpdk.org Cc: david.hunt@intel.com, anatoly.burakov@intel.com, Liang Ma Date: Thu, 3 Sep 2020 17:07:02 +0100 Message-Id: <1599149224-30241-4-git-send-email-liang.j.ma@intel.com> X-Mailer: git-send-email 1.7.7.4 In-Reply-To: <1599149224-30241-1-git-send-email-liang.j.ma@intel.com> References: <1597141666-20621-1-git-send-email-liang.j.ma@intel.com> <1599149224-30241-1-git-send-email-liang.j.ma@intel.com> Subject: [dpdk-dev] [RFC PATCH v3 4/6] 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 `next_rx_desc` function that will return an address of an RX ring's status bit. Signed-off-by: Anatoly Burakov Signed-off-by: Liang Ma --- drivers/net/ixgbe/ixgbe_ethdev.c | 1 + drivers/net/ixgbe/ixgbe_rxtx.c | 22 ++++++++++++++++++++++ drivers/net/ixgbe/ixgbe_rxtx.h | 2 ++ 3 files changed, 25 insertions(+) diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c index fd0cb9b0e2..618fc15732 100644 --- a/drivers/net/ixgbe/ixgbe_ethdev.c +++ b/drivers/net/ixgbe/ixgbe_ethdev.c @@ -592,6 +592,7 @@ 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, + .next_rx_desc = ixgbe_next_rx_desc, }; /* diff --git a/drivers/net/ixgbe/ixgbe_rxtx.c b/drivers/net/ixgbe/ixgbe_rxtx.c index 977ecf5137..d1d015deae 100644 --- a/drivers/net/ixgbe/ixgbe_rxtx.c +++ b/drivers/net/ixgbe/ixgbe_rxtx.c @@ -1366,6 +1366,28 @@ const uint32_t RTE_PTYPE_INNER_L3_IPV4_EXT | RTE_PTYPE_INNER_L4_UDP, }; +int ixgbe_next_rx_desc(void *rx_queue, volatile void **tail_desc_addr, + uint64_t *expected, uint64_t *mask) +{ + 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); + + 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 7e09291b22..826f451bee 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_next_rx_desc(void *rx_queue, volatile void **tail_desc_addr, + uint64_t *expected, uint64_t *mask); #endif /* _IXGBE_RXTX_H_ */ -- 2.17.1