From mboxrd@z Thu Jan 1 00:00:00 1970 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E37F1C433FE for ; Wed, 6 Apr 2022 16:33:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237887AbiDFQfU (ORCPT ); Wed, 6 Apr 2022 12:35:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39052 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237864AbiDFQfB (ORCPT ); Wed, 6 Apr 2022 12:35:01 -0400 Received: from mail-pj1-x1034.google.com (mail-pj1-x1034.google.com [IPv6:2607:f8b0:4864:20::1034]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2EBD42EB440 for ; Tue, 5 Apr 2022 19:54:35 -0700 (PDT) Received: by mail-pj1-x1034.google.com with SMTP id a16-20020a17090a6d9000b001c7d6c1bb13so1367964pjk.4 for ; Tue, 05 Apr 2022 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AOAM531DVSSBOhKamIe2Nss45q1uSC0XaMmEKgboOsYORLaslhVZnlbS dxXYfAegXOSOhJLhTTExS1fajw== X-Google-Smtp-Source: ABdhPJzIcsUV7/W4XRZGs+0zW71o04OyVoUPNzsdkTjg2Fc0IB1P8nF+7kMC5/CxNsF7keL7Tijp7w== X-Received: by 2002:a17:903:230c:b0:156:e47:387e with SMTP id d12-20020a170903230c00b001560e47387emr6796946plh.119.1649213666176; Tue, 05 Apr 2022 19:54:26 -0700 (PDT) Received: from localhost.swdvt.lab.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id x9-20020a17090a970900b001ca6c59b350sm3395111pjo.2.2022.04.05.19.54.24 (version=TLS1_2 cipher=ECDHE-ECDSA-AES128-GCM-SHA256 bits=128/128); Tue, 05 Apr 2022 19:54:25 -0700 (PDT) From: Michael Chan To: davem@davemloft.net Cc: netdev@vger.kernel.org, kuba@kernel.org, gospo@broadcom.com, bpf@vger.kernel.org, john.fastabend@gmail.com, toke@redhat.com, lorenzo@kernel.org, ast@kernel.org, daniel@iogearbox.net, echaudro@redhat.com, pabeni@redhat.com Subject: [PATCH net-next v3 07/11] bnxt: change receive ring space parameters Date: Tue, 5 Apr 2022 22:53:49 -0400 Message-Id: <1649213633-7662-8-git-send-email-michael.chan@broadcom.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1649213633-7662-1-git-send-email-michael.chan@broadcom.com> References: <1649213633-7662-1-git-send-email-michael.chan@broadcom.com> Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="000000000000c8031805dbf37a0f" Precedence: bulk List-ID: X-Mailing-List: bpf@vger.kernel.org --000000000000c8031805dbf37a0f From: Andy Gospodarek Modify ring header data split and jumbo parameters to account for the fact that the design for XDP multibuffer puts close to the first 4k of data in a page and the remaining portions of the packet go in the aggregation ring. v3: Simplified code around initial buffer size calculation Signed-off-by: Andy Gospodarek Signed-off-by: Michael Chan --- drivers/net/ethernet/broadcom/bnxt/bnxt.c | 42 +++++++++++++++-------- drivers/net/ethernet/broadcom/bnxt/bnxt.h | 1 + 2 files changed, 28 insertions(+), 15 deletions(-) diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c index 6e1d43410e8c..2a919905f256 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c @@ -56,6 +56,7 @@ #include #include #include +#include #include "bnxt_hsi.h" #include "bnxt.h" @@ -1933,11 +1934,13 @@ static int bnxt_rx_pkt(struct bnxt *bp, struct bnxt_cp_ring_info *cpr, } if (agg_bufs) { - skb = bnxt_rx_agg_pages_skb(bp, cpr, skb, cp_cons, agg_bufs, false); - if (!skb) { - cpr->sw_stats.rx.rx_oom_discards += 1; - rc = -ENOMEM; - goto next_rx; + if (!xdp_active) { + skb = bnxt_rx_agg_pages_skb(bp, cpr, skb, cp_cons, agg_bufs, false); + if (!skb) { + cpr->sw_stats.rx.rx_oom_discards += 1; + rc = -ENOMEM; + goto next_rx; + } } } @@ -3854,7 +3857,7 @@ void bnxt_set_ring_params(struct bnxt *bp) /* 8 for CRC and VLAN */ rx_size = SKB_DATA_ALIGN(bp->dev->mtu + ETH_HLEN + NET_IP_ALIGN + 8); - rx_space = rx_size + NET_SKB_PAD + + rx_space = rx_size + ALIGN(max(NET_SKB_PAD, XDP_PACKET_HEADROOM), 8) + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); bp->rx_copy_thresh = BNXT_RX_COPY_THRESH; @@ -3895,9 +3898,15 @@ void bnxt_set_ring_params(struct bnxt *bp) } bp->rx_agg_ring_size = agg_ring_size; bp->rx_agg_ring_mask = (bp->rx_agg_nr_pages * RX_DESC_CNT) - 1; - rx_size = SKB_DATA_ALIGN(BNXT_RX_COPY_THRESH + NET_IP_ALIGN); - rx_space = rx_size + NET_SKB_PAD + - SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); + + if (BNXT_RX_PAGE_MODE(bp)) { + rx_space = BNXT_PAGE_MODE_BUF_SIZE; + rx_size = BNXT_MAX_PAGE_MODE_MTU; + } else { + rx_size = SKB_DATA_ALIGN(BNXT_RX_COPY_THRESH + NET_IP_ALIGN); + rx_space = rx_size + NET_SKB_PAD + + SKB_DATA_ALIGN(sizeof(struct skb_shared_info)); + } } bp->rx_buf_use_size = rx_size; @@ -5287,12 +5296,15 @@ static int bnxt_hwrm_vnic_set_hds(struct bnxt *bp, u16 vnic_id) if (rc) return rc; - req->flags = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_JUMBO_PLACEMENT | - VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV4 | - VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV6); - req->enables = - cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_JUMBO_THRESH_VALID | - VNIC_PLCMODES_CFG_REQ_ENABLES_HDS_THRESHOLD_VALID); + req->flags = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_JUMBO_PLACEMENT); + req->enables = cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_JUMBO_THRESH_VALID); + + if (BNXT_RX_PAGE_MODE(bp) && !BNXT_RX_JUMBO_MODE(bp)) { + req->flags |= cpu_to_le32(VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV4 | + VNIC_PLCMODES_CFG_REQ_FLAGS_HDS_IPV6); + req->enables |= + cpu_to_le32(VNIC_PLCMODES_CFG_REQ_ENABLES_HDS_THRESHOLD_VALID); + } /* thresholds not implemented in firmware yet */ req->jumbo_thresh = cpu_to_le16(bp->rx_copy_thresh); req->hds_threshold = cpu_to_le16(bp->rx_copy_thresh); diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h index 0f35459d5206..319d6851eecc 100644 --- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h +++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h @@ -1819,6 +1819,7 @@ struct bnxt { #define BNXT_SUPPORTS_TPA(bp) (!BNXT_CHIP_TYPE_NITRO_A0(bp) && \ (!((bp)->flags & BNXT_FLAG_CHIP_P5) || \ (bp)->max_tpa_v2) && !is_kdump_kernel()) +#define BNXT_RX_JUMBO_MODE(bp) ((bp)->flags & BNXT_FLAG_JUMBO) #define BNXT_CHIP_SR2(bp) \ ((bp)->chip_num == CHIP_NUM_58818) -- 2.18.1 --000000000000c8031805dbf37a0f Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIIQbQYJKoZIhvcNAQcCoIIQXjCCEFoCAQExDzANBglghkgBZQMEAgEFADALBgkqhkiG9w0BBwGg gg3EMIIFDTCCA/WgAwIBAgIQeEqpED+lv77edQixNJMdADANBgkqhkiG9w0BAQsFADBMMSAwHgYD VQQLExdHbG9iYWxTaWduIFJvb3QgQ0EgLSBSMzETMBEGA1UEChMKR2xvYmFsU2lnbjETMBEGA1UE AxMKR2xvYmFsU2lnbjAeFw0yMDA5MTYwMDAwMDBaFw0yODA5MTYwMDAwMDBaMFsxCzAJBgNVBAYT AkJFMRkwFwYDVQQKExBHbG9iYWxTaWduIG52LXNhMTEwLwYDVQQDEyhHbG9iYWxTaWduIEdDQyBS 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