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bh=5b1GCRX3uHMEurOyA5bm+yS5OP0IfBGr8tbeIU7xyP8=; b=bjDLwhFXYGAe2p/aFEOwJZwaUM1Vsc4/C6ebTs/agkEm+BezJesAbgkdN/MCqZTTeAw36t QLytHsMmY4OBWj/l6x3QrYruH7mkje5zu4snEj/1Yk3jUjrsedRQACeC2qwXGk6a42HnyY MGgTksSaIY8EPUOnsO+sGALRMWOueNI= X-MC-Unique: g7fLV9SMOUe9sSuCg0i1ug-1 From: Jason Wang To: qemu-devel@nongnu.org Cc: Tomasz Dzieciol , Akihiko Odaki , Jason Wang Subject: [PULL V2 07/17] igb: RX descriptors guest writting refactoring Date: Mon, 18 Sep 2023 16:31:22 +0800 Message-Id: <20230918083132.55423-8-jasowang@redhat.com> In-Reply-To: <20230918083132.55423-1-jasowang@redhat.com> References: <20230918083132.55423-1-jasowang@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @redhat.com) X-ZM-MESSAGEID: 1695026097833100001 Content-Type: text/plain; charset="utf-8" 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, } =20 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 =3D E1000_RXD_STAT_DD; =20 /* 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); } =20 - /* Packet parsing results */ - if ((core->mac[RXCSUM] & E1000_RXCSUM_PCSD) !=3D 0) { - if (rss_info->enabled) { - *rss =3D cpu_to_le32(rss_info->hash); - trace_igb_rx_metadata_rss(*rss); - } - } else if (hasip4) { - *status_flags |=3D E1000_RXD_STAT_IPIDV; - *ip_id =3D cpu_to_le16(net_rx_pkt_get_ip_id(pkt)); - trace_e1000e_rx_metadata_ip_id(*ip_id); - } - - if (pkt_info) { - *pkt_info =3D rss_info->enabled ? rss_info->type : 0; - - if (etqf < 8) { - *pkt_info |=3D (BIT(11) | etqf) << 4; - } else { - if (hasip4) { - *pkt_info |=3D E1000_ADVRXD_PKT_IP4; - } - - if (hasip6) { - *pkt_info |=3D E1000_ADVRXD_PKT_IP6; - } - - switch (l4hdr_proto) { - case ETH_L4_HDR_PROTO_TCP: - *pkt_info |=3D E1000_ADVRXD_PKT_TCP; - break; - - case ETH_L4_HDR_PROTO_UDP: - *pkt_info |=3D E1000_ADVRXD_PKT_UDP; - break; - - case ETH_L4_HDR_PROTO_SCTP: - *pkt_info |=3D E1000_ADVRXD_PKT_SCTP; - break; - - default: - break; - } - } - } - - if (hdr_info) { - *hdr_info =3D 0; - } - - if (ts) { - *status_flags |=3D 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, boo= l ts, + const E1000E_RSSInfo *rss_info, uint16_t length) { - uint32_t status_flags, rss; - uint16_t ip_id; + uint32_t status_flags; =20 assert(!rss_info->enabled); + + memset(desc, 0, sizeof(*desc)); desc->length =3D cpu_to_le16(length); - desc->csum =3D 0; + igb_build_rx_metadata_common(core, pkt, pkt !=3D NULL, + &status_flags, + &desc->special); =20 - igb_build_rx_metadata(core, pkt, pkt !=3D NULL, - rss_info, etqf, ts, - NULL, NULL, &rss, - &status_flags, &ip_id, - &desc->special); desc->errors =3D (uint8_t) (le32_to_cpu(status_flags) >> 24); desc->status =3D (uint8_t) le32_to_cpu(status_flags); } =20 +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 =3D 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 =3D E1000_ADVRXD_PKT_IP6; + } else if (hasip4) { + pkt_type =3D E1000_ADVRXD_PKT_IP4; + } else { + pkt_type =3D 0; + } + + switch (l4hdr_proto) { + case ETH_L4_HDR_PROTO_TCP: + pkt_type |=3D E1000_ADVRXD_PKT_TCP; + break; + case ETH_L4_HDR_PROTO_UDP: + pkt_type |=3D E1000_ADVRXD_PKT_UDP; + break; + case ETH_L4_HDR_PROTO_SCTP: + pkt_type |=3D 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 =3D 0, pkt_type; + bool eop =3D (pkt !=3D NULL); + uint32_t adv_desc_status_error =3D 0; memset(&desc->wb, 0, sizeof(desc->wb)); =20 desc->wb.upper.length =3D 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) !=3D 0) { + if (rss_info->enabled) { + desc->wb.lower.hi_dword.rss =3D cpu_to_le32(rss_info->hash); + rss_type =3D rss_info->type; + trace_igb_rx_metadata_rss(desc->wb.lower.hi_dword.rss, rss_typ= e); + } + } else if (hasip4) { + adv_desc_status_error |=3D E1000_RXD_STAT_IPIDV; + desc->wb.lower.hi_dword.csum_ip.ip_id =3D + 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 |=3D BIT(16); + } =20 - igb_build_rx_metadata(core, pkt, pkt !=3D 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 =3D igb_rx_desc_get_packet_type(core, pkt, etqf); + trace_e1000e_rx_metadata_pkt_type(pkt_type); + desc->wb.lower.lo_dword.pkt_info =3D cpu_to_le16(rss_type | (pkt_type = << 4)); + desc->wb.upper.status_error |=3D cpu_to_le32(adv_desc_status_error); } =20 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 { =20 #define E1000_STATUS_NUM_VFS_SHIFT 14 =20 -#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) =20 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_sele= ct_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" =20 -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: 0= x%X, rss_pkt_type: 0x%X" =20 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] =3D 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" =20 +igb_wrn_rx_desc_modes_not_supp(int desc_type) "Not supported descriptor ty= pe: %d" + # igbvf.c igbvf_wrn_io_addr_unknown(uint64_t addr) "IO unknown register 0x%"PRIx64 =20 --=20 2.7.4