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GET /api/1.2/patches/2230136/?format=api
{ "id": 2230136, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2230136/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260429102426.210750-3-jtornosm@redhat.com/", "project": { "id": 46, "url": "http://patchwork.ozlabs.org/api/1.2/projects/46/?format=api", "name": "Intel Wired Ethernet development", "link_name": "intel-wired-lan", "list_id": "intel-wired-lan.osuosl.org", "list_email": "intel-wired-lan@osuosl.org", "web_url": "", "scm_url": "", "webscm_url": "", "list_archive_url": "", "list_archive_url_format": "", "commit_url_format": "" }, "msgid": "<20260429102426.210750-3-jtornosm@redhat.com>", "list_archive_url": null, "date": "2026-04-29T10:24:24", "name": "[net,v5,2/4] i40e: skip unnecessary VF reset when setting trust", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "6e8e5512ce8ad6e443c070c6078bf3aa5d3cdc2b", "submitter": { "id": 93070, "url": "http://patchwork.ozlabs.org/api/1.2/people/93070/?format=api", "name": "Jose Ignacio Tornos Martinez", "email": "jtornosm@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260429102426.210750-3-jtornosm@redhat.com/mbox/", "series": [ { "id": 502034, "url": "http://patchwork.ozlabs.org/api/1.2/series/502034/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=502034", "date": "2026-04-29T10:24:22", "name": "Fix i40e/ice/iavf VF bonding after netdev lock changes", "version": 5, "mbox": "http://patchwork.ozlabs.org/series/502034/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2230136/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2230136/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<intel-wired-lan-bounces@osuosl.org>", "X-Original-To": [ "incoming@patchwork.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Delivered-To": [ "patchwork-incoming@legolas.ozlabs.org", "intel-wired-lan@lists.osuosl.org" ], "Authentication-Results": [ "legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=osuosl.org header.i=@osuosl.org header.a=rsa-sha256\n header.s=default header.b=MKSJJ8o+;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=140.211.166.136; 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charset=\"US-ASCII\"; x-default=true", "X-Mailman-Original-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=redhat.com;\n s=mimecast20190719; t=1777458311;\n h=from:from:reply-to:subject:subject:date:date:message-id:message-id:\n to:to:cc:cc:mime-version:mime-version:content-type:content-type:\n content-transfer-encoding:content-transfer-encoding:\n in-reply-to:in-reply-to:references:references;\n bh=yTpL5wJR/2IpBuHxEHXZPXPdI76PJuWOkbsqVNAGeqg=;\n b=TCHHtOpW7Ns8x+yZjwt1elyyAPuszYjUV3UuNclyMv6KyTB0FGje/UnoENUVxLU3CdarFF\n uUERdnMTdifstT5A7EHuA1HVDZDUvc+IaYXtMsyNm535/09KPnC7iLPKEkVqXA6RQMjQke\n qW5t3qxL2guc77sT34umbLBKXu2bUNk=", "X-Mailman-Original-Authentication-Results": [ "smtp3.osuosl.org;\n dmarc=pass (p=quarantine dis=none)\n header.from=redhat.com", "smtp3.osuosl.org;\n dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com\n header.a=rsa-sha256 header.s=mimecast20190719 header.b=TCHHtOpW" ], "Subject": "[Intel-wired-lan] [PATCH net v5 2/4] i40e: skip unnecessary VF\n reset when setting trust", "X-BeenThere": "intel-wired-lan@osuosl.org", "X-Mailman-Version": "2.1.30", "Precedence": "list", "List-Id": "Intel Wired Ethernet Linux Kernel Driver Development\n <intel-wired-lan.osuosl.org>", "List-Unsubscribe": "<https://lists.osuosl.org/mailman/options/intel-wired-lan>,\n <mailto:intel-wired-lan-request@osuosl.org?subject=unsubscribe>", "List-Archive": "<http://lists.osuosl.org/pipermail/intel-wired-lan/>", "List-Post": "<mailto:intel-wired-lan@osuosl.org>", "List-Help": "<mailto:intel-wired-lan-request@osuosl.org?subject=help>", "List-Subscribe": "<https://lists.osuosl.org/mailman/listinfo/intel-wired-lan>,\n <mailto:intel-wired-lan-request@osuosl.org?subject=subscribe>", "Errors-To": "intel-wired-lan-bounces@osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>" }, "content": "The current implementation triggers a VF reset when changing the trust\nsetting, causing a ~10 second delay during bonding setup.\n\nIn all the cases, the reset causes a ~10 second delay during which:\n- VF must reinitialize completely\n- Any in-progress operations (like bonding enslave) fail with timeouts\n- VF is unavailable\n\nWhen granting trust, no reset is needed - we can just set the capability\nflag to allow privileged operations.\n\nWhen revoking trust, we only need to reset (conservative approach) if\nthe VF has actually configured advanced features that require cleanup\n(ADQ/cloud filters, promiscuous mode). For VFs in a clean state, we can\nsafely change the trust setting without the disruptive reset.\n\nWhen we don't reset, we manually handle capability flag via helper\nfunction, eliminating the delay.\n\nSigned-off-by: Jose Ignacio Tornos Martinez <jtornosm@redhat.com>\n---\nv5: kdoc should end with '*/' not '**/' (new function)\n Address AI review (sashiko.dev) from Simon Horman:\n - Adopt a conservative approach checking multiple conditions before\n skipping reset: ADQ, cloud filters, promiscuous mode\n - Simplify helper function to only handle capability flag\nv4: https://lore.kernel.org/all/20260423130405.139568-3-jtornosm@redhat.com/\n\n .../ethernet/intel/i40e/i40e_virtchnl_pf.c | 38 ++++++++++++++-----\n 1 file changed, 28 insertions(+), 10 deletions(-)", "diff": "diff --git a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c\nindex a26c3d47ec15..0cc434b26eb8 100644\n--- a/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c\n+++ b/drivers/net/ethernet/intel/i40e/i40e_virtchnl_pf.c\n@@ -4943,6 +4943,23 @@ int i40e_ndo_set_vf_spoofchk(struct net_device *netdev, int vf_id, bool enable)\n \treturn ret;\n }\n \n+/**\n+ * i40e_setup_vf_trust - Enable/disable VF trust mode without reset\n+ * @vf: VF to configure\n+ * @setting: trust setting\n+ *\n+ * Update VF flags when changing trust without performing a VF reset.\n+ * This is only called when it's safe to skip the reset (VF has no advanced\n+ * features configured that need cleanup).\n+ */\n+static void i40e_setup_vf_trust(struct i40e_vf *vf, bool setting)\n+{\n+\tif (setting)\n+\t\tset_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);\n+\telse\n+\t\tclear_bit(I40E_VIRTCHNL_VF_CAP_PRIVILEGE, &vf->vf_caps);\n+}\n+\n /**\n * i40e_ndo_set_vf_trust\n * @netdev: network interface device structure of the pf\n@@ -4987,19 +5004,20 @@ int i40e_ndo_set_vf_trust(struct net_device *netdev, int vf_id, bool setting)\n \tset_bit(__I40E_MACVLAN_SYNC_PENDING, pf->state);\n \tpf->vsi[vf->lan_vsi_idx]->flags |= I40E_VSI_FLAG_FILTER_CHANGED;\n \n-\ti40e_vc_reset_vf(vf, true);\n+\t/* Reset only if revoking trust and VF has advanced features configured */\n+\tif (!setting &&\n+\t (vf->adq_enabled || vf->num_cloud_filters > 0 ||\n+\t test_bit(I40E_VF_STATE_UC_PROMISC, &vf->vf_states) ||\n+\t test_bit(I40E_VF_STATE_MC_PROMISC, &vf->vf_states))) {\n+\t\ti40e_vc_reset_vf(vf, true);\n+\t\ti40e_del_all_cloud_filters(vf);\n+\t} else {\n+\t\ti40e_setup_vf_trust(vf, setting);\n+\t}\n+\n \tdev_info(&pf->pdev->dev, \"VF %u is now %strusted\\n\",\n \t\t vf_id, setting ? \"\" : \"un\");\n \n-\tif (vf->adq_enabled) {\n-\t\tif (!vf->trusted) {\n-\t\t\tdev_info(&pf->pdev->dev,\n-\t\t\t\t \"VF %u no longer Trusted, deleting all cloud filters\\n\",\n-\t\t\t\t vf_id);\n-\t\t\ti40e_del_all_cloud_filters(vf);\n-\t\t}\n-\t}\n-\n out:\n \tclear_bit(__I40E_VIRTCHNL_OP_PENDING, pf->state);\n \treturn ret;\n", "prefixes": [ "net", "v5", "2/4" ] }