From patchwork Fri Sep 8 06:44:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jason Wang X-Patchwork-Id: 13377148 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E849EEE57D5 for ; Fri, 8 Sep 2023 06:46:20 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qeVFj-0005G7-W3; Fri, 08 Sep 2023 02:46:11 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qeVFN-0004yx-2M for qemu-devel@nongnu.org; Fri, 08 Sep 2023 02:45:41 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.129.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qeVFI-0002xB-Ub for qemu-devel@nongnu.org; Fri, 08 Sep 2023 02:45:39 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1694155534; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=5b1GCRX3uHMEurOyA5bm+yS5OP0IfBGr8tbeIU7xyP8=; b=PzNTtyQXCUkPpMr6ooVccqhNscy+KbSjdoTJJh1blsFVMDYaec1O7KDx/FuYOMiHcr9Urv SsK4k1Ein1PVv6LkOTLW5Gxmef1kndFrj8IJoXSuFcJB61Atz9U/XZWp+c0LDPeHFDA0T8 ALkHiiV/TYSLuxTV9n5CJRE/cCHUKKQ= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-689-YPdsaChaO8qpkaUXKMBY2g-1; Fri, 08 Sep 2023 02:45:32 -0400 X-MC-Unique: YPdsaChaO8qpkaUXKMBY2g-1 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.rdu2.redhat.com [10.11.54.3]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 754D9805BC3; Fri, 8 Sep 2023 06:45:32 +0000 (UTC) Received: from localhost.localdomain (unknown [10.72.113.80]) by smtp.corp.redhat.com (Postfix) with ESMTP id 5F26F1121314; Fri, 8 Sep 2023 06:45:29 +0000 (UTC) From: Jason Wang To: qemu-devel@nongnu.org Cc: Tomasz Dzieciol , Akihiko Odaki , Jason Wang Subject: [PULL 07/17] igb: RX descriptors guest writting refactoring Date: Fri, 8 Sep 2023 14:44:57 +0800 Message-Id: <20230908064507.14596-8-jasowang@redhat.com> In-Reply-To: <20230908064507.14596-1-jasowang@redhat.com> References: <20230908064507.14596-1-jasowang@redhat.com> MIME-Version: 1.0 Content-type: text/plain X-Scanned-By: MIMEDefang 3.1 on 10.11.54.3 Received-SPF: pass client-ip=170.10.129.124; envelope-from=jasowang@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H4=0.001, RCVD_IN_MSPIKE_WL=0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org From: Tomasz Dzieciol Refactoring is done in preparation for support of multiple advanced descriptors RX modes, especially packet-split modes. Signed-off-by: Tomasz Dzieciol Reviewed-by: Akihiko Odaki Tested-by: Akihiko Odaki Signed-off-by: Jason Wang --- hw/net/igb_core.c | 170 +++++++++++++++++++++++++++------------------------- hw/net/igb_regs.h | 10 ++-- hw/net/trace-events | 4 +- 3 files changed, 96 insertions(+), 88 deletions(-) diff --git a/hw/net/igb_core.c b/hw/net/igb_core.c index d50e6b1..e140358 100644 --- a/hw/net/igb_core.c +++ b/hw/net/igb_core.c @@ -1281,15 +1281,11 @@ igb_verify_csum_in_sw(IGBCore *core, } static void -igb_build_rx_metadata(IGBCore *core, - struct NetRxPkt *pkt, - bool is_eop, - const E1000E_RSSInfo *rss_info, uint16_t etqf, bool ts, - uint16_t *pkt_info, uint16_t *hdr_info, - uint32_t *rss, - uint32_t *status_flags, - uint16_t *ip_id, - uint16_t *vlan_tag) +igb_build_rx_metadata_common(IGBCore *core, + struct NetRxPkt *pkt, + bool is_eop, + uint32_t *status_flags, + uint16_t *vlan_tag) { struct virtio_net_hdr *vhdr; bool hasip4, hasip6, csum_valid; @@ -1298,7 +1294,6 @@ igb_build_rx_metadata(IGBCore *core, *status_flags = E1000_RXD_STAT_DD; /* No additional metadata needed for non-EOP descriptors */ - /* TODO: EOP apply only to status so don't skip whole function. */ if (!is_eop) { goto func_exit; } @@ -1315,59 +1310,6 @@ igb_build_rx_metadata(IGBCore *core, trace_e1000e_rx_metadata_vlan(*vlan_tag); } - /* Packet parsing results */ - if ((core->mac[RXCSUM] & E1000_RXCSUM_PCSD) != 0) { - if (rss_info->enabled) { - *rss = cpu_to_le32(rss_info->hash); - trace_igb_rx_metadata_rss(*rss); - } - } else if (hasip4) { - *status_flags |= E1000_RXD_STAT_IPIDV; - *ip_id = cpu_to_le16(net_rx_pkt_get_ip_id(pkt)); - trace_e1000e_rx_metadata_ip_id(*ip_id); - } - - if (pkt_info) { - *pkt_info = rss_info->enabled ? rss_info->type : 0; - - if (etqf < 8) { - *pkt_info |= (BIT(11) | etqf) << 4; - } else { - if (hasip4) { - *pkt_info |= E1000_ADVRXD_PKT_IP4; - } - - if (hasip6) { - *pkt_info |= E1000_ADVRXD_PKT_IP6; - } - - switch (l4hdr_proto) { - case ETH_L4_HDR_PROTO_TCP: - *pkt_info |= E1000_ADVRXD_PKT_TCP; - break; - - case ETH_L4_HDR_PROTO_UDP: - *pkt_info |= E1000_ADVRXD_PKT_UDP; - break; - - case ETH_L4_HDR_PROTO_SCTP: - *pkt_info |= E1000_ADVRXD_PKT_SCTP; - break; - - default: - break; - } - } - } - - if (hdr_info) { - *hdr_info = 0; - } - - if (ts) { - *status_flags |= BIT(16); - } - /* RX CSO information */ if (hasip6 && (core->mac[RFCTL] & E1000_RFCTL_IPV6_XSUM_DIS)) { trace_e1000e_rx_metadata_ipv6_sum_disabled(); @@ -1423,43 +1365,108 @@ func_exit: static inline void igb_write_lgcy_rx_descr(IGBCore *core, struct e1000_rx_desc *desc, struct NetRxPkt *pkt, - const E1000E_RSSInfo *rss_info, uint16_t etqf, bool ts, + const E1000E_RSSInfo *rss_info, uint16_t length) { - uint32_t status_flags, rss; - uint16_t ip_id; + uint32_t status_flags; assert(!rss_info->enabled); + + memset(desc, 0, sizeof(*desc)); desc->length = cpu_to_le16(length); - desc->csum = 0; + igb_build_rx_metadata_common(core, pkt, pkt != NULL, + &status_flags, + &desc->special); - igb_build_rx_metadata(core, pkt, pkt != NULL, - rss_info, etqf, ts, - NULL, NULL, &rss, - &status_flags, &ip_id, - &desc->special); desc->errors = (uint8_t) (le32_to_cpu(status_flags) >> 24); desc->status = (uint8_t) le32_to_cpu(status_flags); } +static uint16_t +igb_rx_desc_get_packet_type(IGBCore *core, struct NetRxPkt *pkt, uint16_t etqf) +{ + uint16_t pkt_type; + bool hasip4, hasip6; + EthL4HdrProto l4hdr_proto; + + if (etqf < 8) { + pkt_type = BIT(11) | etqf; + return pkt_type; + } + + net_rx_pkt_get_protocols(pkt, &hasip4, &hasip6, &l4hdr_proto); + + if (hasip6 && !(core->mac[RFCTL] & E1000_RFCTL_IPV6_DIS)) { + pkt_type = E1000_ADVRXD_PKT_IP6; + } else if (hasip4) { + pkt_type = E1000_ADVRXD_PKT_IP4; + } else { + pkt_type = 0; + } + + switch (l4hdr_proto) { + case ETH_L4_HDR_PROTO_TCP: + pkt_type |= E1000_ADVRXD_PKT_TCP; + break; + case ETH_L4_HDR_PROTO_UDP: + pkt_type |= E1000_ADVRXD_PKT_UDP; + break; + case ETH_L4_HDR_PROTO_SCTP: + pkt_type |= E1000_ADVRXD_PKT_SCTP; + break; + default: + break; + } + + return pkt_type; +} + static inline void igb_write_adv_rx_descr(IGBCore *core, union e1000_adv_rx_desc *desc, struct NetRxPkt *pkt, const E1000E_RSSInfo *rss_info, uint16_t etqf, bool ts, uint16_t length) { + bool hasip4, hasip6; + EthL4HdrProto l4hdr_proto; + uint16_t rss_type = 0, pkt_type; + bool eop = (pkt != NULL); + uint32_t adv_desc_status_error = 0; memset(&desc->wb, 0, sizeof(desc->wb)); desc->wb.upper.length = cpu_to_le16(length); + igb_build_rx_metadata_common(core, pkt, eop, + &desc->wb.upper.status_error, + &desc->wb.upper.vlan); + + if (!eop) { + return; + } + + net_rx_pkt_get_protocols(pkt, &hasip4, &hasip6, &l4hdr_proto); + + if ((core->mac[RXCSUM] & E1000_RXCSUM_PCSD) != 0) { + if (rss_info->enabled) { + desc->wb.lower.hi_dword.rss = cpu_to_le32(rss_info->hash); + rss_type = rss_info->type; + trace_igb_rx_metadata_rss(desc->wb.lower.hi_dword.rss, rss_type); + } + } else if (hasip4) { + adv_desc_status_error |= E1000_RXD_STAT_IPIDV; + desc->wb.lower.hi_dword.csum_ip.ip_id = + cpu_to_le16(net_rx_pkt_get_ip_id(pkt)); + trace_e1000e_rx_metadata_ip_id( + desc->wb.lower.hi_dword.csum_ip.ip_id); + } + + if (ts) { + adv_desc_status_error |= BIT(16); + } - igb_build_rx_metadata(core, pkt, pkt != NULL, - rss_info, etqf, ts, - &desc->wb.lower.lo_dword.pkt_info, - &desc->wb.lower.lo_dword.hdr_info, - &desc->wb.lower.hi_dword.rss, - &desc->wb.upper.status_error, - &desc->wb.lower.hi_dword.csum_ip.ip_id, - &desc->wb.upper.vlan); + pkt_type = igb_rx_desc_get_packet_type(core, pkt, etqf); + trace_e1000e_rx_metadata_pkt_type(pkt_type); + desc->wb.lower.lo_dword.pkt_info = cpu_to_le16(rss_type | (pkt_type << 4)); + desc->wb.upper.status_error |= cpu_to_le32(adv_desc_status_error); } static inline void @@ -1468,8 +1475,7 @@ igb_write_rx_descr(IGBCore *core, union e1000_rx_desc_union *desc, uint16_t etqf, bool ts, uint16_t length) { if (igb_rx_use_legacy_descriptor(core)) { - igb_write_lgcy_rx_descr(core, &desc->legacy, pkt, rss_info, - etqf, ts, length); + igb_write_lgcy_rx_descr(core, &desc->legacy, pkt, rss_info, length); } else { igb_write_adv_rx_descr(core, &desc->adv, pkt, rss_info, etqf, ts, length); diff --git a/hw/net/igb_regs.h b/hw/net/igb_regs.h index 82ff195..71a8833 100644 --- a/hw/net/igb_regs.h +++ b/hw/net/igb_regs.h @@ -692,11 +692,11 @@ union e1000_adv_rx_desc { #define E1000_STATUS_NUM_VFS_SHIFT 14 -#define E1000_ADVRXD_PKT_IP4 BIT(4) -#define E1000_ADVRXD_PKT_IP6 BIT(6) -#define E1000_ADVRXD_PKT_TCP BIT(8) -#define E1000_ADVRXD_PKT_UDP BIT(9) -#define E1000_ADVRXD_PKT_SCTP BIT(10) +#define E1000_ADVRXD_PKT_IP4 BIT(0) +#define E1000_ADVRXD_PKT_IP6 BIT(2) +#define E1000_ADVRXD_PKT_TCP BIT(4) +#define E1000_ADVRXD_PKT_UDP BIT(5) +#define E1000_ADVRXD_PKT_SCTP BIT(6) static inline uint8_t igb_ivar_entry_rx(uint8_t i) { diff --git a/hw/net/trace-events b/hw/net/trace-events index 6b5ba66..b8305c0 100644 --- a/hw/net/trace-events +++ b/hw/net/trace-events @@ -280,7 +280,7 @@ igb_link_set_ext_params(bool asd_check, bool speed_select_bypass, bool pfrstd) " igb_rx_desc_buff_size(uint32_t b) "buffer size: %u" igb_rx_desc_buff_write(uint64_t addr, uint16_t offset, const void* source, uint32_t len) "addr: 0x%"PRIx64", offset: %u, from: %p, length: %u" -igb_rx_metadata_rss(uint32_t rss) "RSS data: 0x%X" +igb_rx_metadata_rss(uint32_t rss, uint16_t rss_pkt_type) "RSS data: rss: 0x%X, rss_pkt_type: 0x%X" igb_irq_icr_clear_gpie_nsicr(void) "Clearing ICR on read due to GPIE.NSICR enabled" igb_irq_set_iam(uint32_t icr) "Update IAM: 0x%x" @@ -295,6 +295,8 @@ igb_irq_eitr_set(uint32_t eitr_num, uint32_t val) "EITR[%u] = 0x%x" igb_set_pfmailbox(uint32_t vf_num, uint32_t val) "PFMailbox[%d]: 0x%x" igb_set_vfmailbox(uint32_t vf_num, uint32_t val) "VFMailbox[%d]: 0x%x" +igb_wrn_rx_desc_modes_not_supp(int desc_type) "Not supported descriptor type: %d" + # igbvf.c igbvf_wrn_io_addr_unknown(uint64_t addr) "IO unknown register 0x%"PRIx64