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GET /api/1.1/patches/2229983/?format=api
{ "id": 2229983, "url": "http://patchwork.ozlabs.org/api/1.1/patches/2229983/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260429034849.1686650-1-aaron.ma@canonical.com/", "project": { "id": 46, "url": "http://patchwork.ozlabs.org/api/1.1/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": "" }, "msgid": "<20260429034849.1686650-1-aaron.ma@canonical.com>", "date": "2026-04-29T03:48:49", "name": "[v4] ice: wait for reset completion in ice_resume()", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "b6eba10040eba7f36b908fa73fa0085b9494d529", "submitter": { "id": 72035, "url": "http://patchwork.ozlabs.org/api/1.1/people/72035/?format=api", "name": "Aaron Ma", "email": "aaron.ma@canonical.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260429034849.1686650-1-aaron.ma@canonical.com/mbox/", "series": [ { "id": 501978, "url": "http://patchwork.ozlabs.org/api/1.1/series/501978/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=501978", "date": "2026-04-29T03:48:49", "name": "[v4] ice: wait for reset completion in ice_resume()", "version": 4, "mbox": "http://patchwork.ozlabs.org/series/501978/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2229983/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2229983/checks/", "tags": {}, "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=pNr12g4t;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=140.211.166.137; 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Miller\" <davem@davemloft.net>,\n Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>,\n Paolo Abeni <pabeni@redhat.com>, netdev@vger.kernel.org,\n linux-kernel@vger.kernel.org", "Cc": "Akeem G Abodunrin <akeem.g.abodunrin@intel.com>,\n Jesse Brandeburg <jesse.brandeburg@intel.com>,\n intel-wired-lan@lists.osuosl.org, aleksandr.loktionov@intel.com,\n kohei@enjuk.jp, Paul Menzel <pmenzel@molgen.mpg.de>", "Date": "Wed, 29 Apr 2026 11:48:49 +0800", "Message-ID": "<20260429034849.1686650-1-aaron.ma@canonical.com>", "X-Mailer": "git-send-email 2.43.0", "MIME-Version": "1.0", "Content-Transfer-Encoding": "8bit", "X-Mailman-Original-DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed;\n d=canonical.com; s=20251003; t=1777434542;\n bh=9Poun78EQtztiC583t+elgVeEgGqZI6iTcp9LxQ5+sk=;\n h=From:To:Cc:Subject:Date:Message-ID:MIME-Version;\n b=dxokGYNWBfVHMu4VcaLtOE5TgrIb8LulDvUkmSMqLPereGehZOjvuPB40Bn3R5m2+\n JopZXuzvqJJ/jvp4diXLdF5bPvZSfWOiAID3U24FlxG2mJXjSnYNMYtUXHqI5yhllq\n GIWtsdCZDsQad1K1Owm2weyofo77tHfiGjU+YhY8FAf6w7hZoAyrGfXVLo3EmLwslm\n gJMJbMBmJ6ivkV2kmkf8j/HJ9tz6vpShp0r/+VPMlqV88/3gcYzJqHJExjigtWU1r3\n a/HNCwkSp9vga0xce/uZ4+NQBQeDBByVWya913VU6LVNBcWnzFjpCO9/gJYoMlQ+mZ\n WGSz728QKCvwDGg3bNGiT+ybTaHFz2j27zy+A7NtGiNeQtHn92pO/eJmMNjLcSv5Tp\n BOlsEOqVg77IG9Oh3zQaOcUdl7N+P5hykn4PmxMSVDMtHQwpJBrTJk9sQtg0XisSyu\n DepeIEbRjYq7A6gQlIoFyGrqKjbk3m0Fw8eaMThVLNEhJzBh51BoBNAlqpKlotVzdN\n nELuhNo5X0mxv4Mrz9ILKXVzC8oLxB5/nOhyF7byA5F9H+Db1Qe7fBwXgpdPM5q/C1\n EUexKjPcWTSfqllQJxv5HDGCfz3TaifK4oknlJ8copvJ5wzVIoAKupCjqsEZ+hshiW\n klVsXpoZeQdExNNiPZ5gZ880=", "X-Mailman-Original-Authentication-Results": [ "smtp1.osuosl.org;\n dmarc=pass (p=reject dis=none)\n header.from=canonical.com", "smtp1.osuosl.org;\n dkim=pass (4096-bit key,\n unprotected) header.d=canonical.com header.i=@canonical.com\n header.a=rsa-sha256 header.s=20251003 header.b=dxokGYNW" ], "Subject": "[Intel-wired-lan] [PATCH v4] ice: wait for reset completion in\n ice_resume()", "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>", "From": "Aaron Ma via Intel-wired-lan <intel-wired-lan@osuosl.org>", "Reply-To": "Aaron Ma <aaron.ma@canonical.com>", "Errors-To": "intel-wired-lan-bounces@osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>" }, "content": "ice_resume() schedules an asynchronous PF reset and returns\nimmediately. The reset runs later in ice_service_task(). If\nuserspace tries to bring up the net device before the reset\nfinishes, ice_open() fails with -EBUSY:\n\n ice_resume()\n ice_schedule_reset() # sets ICE_PFR_REQ, returns\n ...\n ice_open()\n ice_is_reset_in_progress() # ICE_PFR_REQ still set, -EBUSY\n ...\n ice_service_task()\n ice_do_reset()\n ice_rebuild() # clears ICE_PFR_REQ, too late\n\nReproduced on E800 series NICs during suspend/resume with irdma\nenabled, where the aux device probe widens the race window.\n\n ice 0000:81:00.0: can't open net device while reset is in progress\n\nAdd a best-effort wait (10s timeout, matching ice_devlink_info_get())\nfor the reset to complete before returning from ice_resume(). In\npractice the reset completes in ~300ms.\n\nFixes: 769c500dcc1e (\"ice: Add advanced power mgmt for WoL\")\nCc: stable@vger.kernel.org\nReviewed-by: Kohei Enju <kohei@enjuk.jp>\nReviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com>\nReviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>\nSigned-off-by: Aaron Ma <aaron.ma@canonical.com>\n---\nv4: use secs_to_jiffies() instead of 10 * HZ (Przemek Kitszel)\nv3: add error message to commit message for searchability, mention\n timeout in dev_err (Paul Menzel)\nv2: reword comment to clarify best-effort semantics (Kohei Enju)\nv1: https://lore.kernel.org/intel-wired-lan/20260402024220.210466-1-aaron.ma@canonical.com/\n\n drivers/net/ethernet/intel/ice/ice_main.c | 10 ++++++++++\n 1 file changed, 10 insertions(+)", "diff": "diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c\nindex 5f92377d4dfc2..5fce644dc658e 100644\n--- a/drivers/net/ethernet/intel/ice/ice_main.c\n+++ b/drivers/net/ethernet/intel/ice/ice_main.c\n@@ -5635,6 +5635,16 @@ static int ice_resume(struct device *dev)\n \t/* Restart the service task */\n \tmod_timer(&pf->serv_tmr, round_jiffies(jiffies + pf->serv_tmr_period));\n \n+\t/* Best-effort wait for the scheduled reset to finish so that the\n+\t * device is operational before returning. Without this, userspace\n+\t * (e.g. NetworkManager) may try to open the net device while the\n+\t * asynchronous reset is still in progress, hitting -EBUSY.\n+\t */\n+\tret = ice_wait_for_reset(pf, secs_to_jiffies(10));\n+\tif (ret)\n+\t\tdev_err(dev, \"Wait for reset timed out (10s) during resume: %d\\n\",\n+\t\t\tret);\n+\n \treturn 0;\n }\n \n", "prefixes": [ "v4" ] }