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 46424A04DD; Fri, 23 Oct 2020 19:27:56 +0200 (CEST) Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 2B7A4F04; Fri, 23 Oct 2020 19:27:55 +0200 (CEST) Received: from mga18.intel.com (mga18.intel.com [134.134.136.126]) by dpdk.org (Postfix) with ESMTP id A05A6DE3 for ; Fri, 23 Oct 2020 19:27:52 +0200 (CEST) IronPort-SDR: 0hzZGkj7ZCnrAF2WRf7GXgvc4wTz0Ph1dvthgezRbPLjacR/aII+AXbpXTzJrClnVdvGgjuGpD CTCqQZThaL+w== X-IronPort-AV: E=McAfee;i="6000,8403,9782"; a="155492774" X-IronPort-AV: E=Sophos;i="5.77,409,1596524400"; d="scan'208";a="155492774" 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/ECDHE-RSA-AES256-GCM-SHA384; 23 Oct 2020 10:27:50 -0700 IronPort-SDR: Awt/AhEJ6orq17b1DchNASOnzlkGtKhjKR0NccFAUarz/bcLwngkvEx16XisB/CFAVA0YRryND WYXeCSYkUCkw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.77,409,1596524400"; d="scan'208";a="423485276" Received: from irvmail001.ir.intel.com ([163.33.26.43]) by fmsmga001.fm.intel.com with ESMTP; 23 Oct 2020 10:27:48 -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 09NHRm1W015630; Fri, 23 Oct 2020 18:27:48 +0100 Received: from sivswdev09.ir.intel.com (localhost [127.0.0.1]) by sivswdev09.ir.intel.com with ESMTP id 09NHRlTP015819; Fri, 23 Oct 2020 18:27:47 +0100 Received: (from lma25@localhost) by sivswdev09.ir.intel.com with LOCAL id 09NHRl7r015815; Fri, 23 Oct 2020 18:27:47 +0100 From: Liang Ma To: dev@dpdk.org Cc: anatoly.burakov@intel.com, qiming.yang@intel.com, qi.z.zhang@intel.com, bruce.richardson@intel.com, konstantin.ananyev@intel.com, david.hunt@intel.com, jerinjacobk@gmail.com, thomas@monjalon.net, timothy.mcdaniel@intel.com, gage.eads@intel.com, Liang Ma Date: Fri, 23 Oct 2020 18:27:46 +0100 Message-Id: <1603474066-15775-1-git-send-email-liang.j.ma@intel.com> X-Mailer: git-send-email 1.7.7.4 In-Reply-To: References: Subject: [dpdk-dev] [PATCH v8 08/10] net/ice: 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: Liang Ma Signed-off-by: Anatoly Burakov Acked-by: Konstantin Ananyev --- drivers/net/ice/ice_ethdev.c | 1 + drivers/net/ice/ice_rxtx.c | 26 ++++++++++++++++++++++++++ drivers/net/ice/ice_rxtx.h | 2 ++ 3 files changed, 29 insertions(+) diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c index c65125ff32..54f185ad4d 100644 --- a/drivers/net/ice/ice_ethdev.c +++ b/drivers/net/ice/ice_ethdev.c @@ -216,6 +216,7 @@ static const struct eth_dev_ops ice_eth_dev_ops = { .udp_tunnel_port_add = ice_dev_udp_tunnel_port_add, .udp_tunnel_port_del = ice_dev_udp_tunnel_port_del, .tx_done_cleanup = ice_tx_done_cleanup, + .get_wake_addr = ice_get_wake_addr, }; /* store statistics names and its offset in stats structure */ diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c index ee576c362a..fafd6ada62 100644 --- a/drivers/net/ice/ice_rxtx.c +++ b/drivers/net/ice/ice_rxtx.c @@ -26,6 +26,32 @@ uint64_t rte_net_ice_dynflag_proto_xtr_ipv6_flow_mask; uint64_t rte_net_ice_dynflag_proto_xtr_tcp_mask; uint64_t rte_net_ice_dynflag_proto_xtr_ip_offset_mask; +int ice_get_wake_addr(void *rx_queue, volatile void **tail_desc_addr, + uint64_t *expected, uint64_t *mask, uint8_t *data_sz) +{ + volatile union ice_rx_flex_desc *rxdp; + struct ice_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.status_error0; + + /* + * we expect the DD bit to be set to 1 if this descriptor was already + * written to. + */ + *expected = rte_cpu_to_le_16(1 << ICE_RX_FLEX_DESC_STATUS0_DD_S); + *mask = rte_cpu_to_le_16(1 << ICE_RX_FLEX_DESC_STATUS0_DD_S); + + /* register is 16-bit */ + *data_sz = 2; + + return 0; +} + + static inline uint8_t ice_proto_xtr_type_to_rxdid(uint8_t xtr_type) { diff --git a/drivers/net/ice/ice_rxtx.h b/drivers/net/ice/ice_rxtx.h index 1c23c7541e..7eeb8d467e 100644 --- a/drivers/net/ice/ice_rxtx.h +++ b/drivers/net/ice/ice_rxtx.h @@ -250,6 +250,8 @@ uint16_t ice_xmit_pkts_vec_avx2(void *tx_queue, struct rte_mbuf **tx_pkts, uint16_t nb_pkts); int ice_fdir_programming(struct ice_pf *pf, struct ice_fltr_desc *fdir_desc); int ice_tx_done_cleanup(void *txq, uint32_t free_cnt); +int ice_get_wake_addr(void *rx_queue, volatile void **tail_desc_addr, + uint64_t *expected, uint64_t *mask, uint8_t *data_sz); #define FDIR_PARSING_ENABLE_PER_QUEUE(ad, on) do { \ int i; \ -- 2.17.1