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GET /api/1.2/patches/2224548/?format=api
{ "id": 2224548, "url": "http://patchwork.ozlabs.org/api/1.2/patches/2224548/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260417145907.696307-4-poros@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": "<20260417145907.696307-4-poros@redhat.com>", "list_archive_url": null, "date": "2026-04-17T14:59:07", "name": "[iwl-net,v7,3/3] ice: add dpll peer notification for paired SMA and U.FL pins", "commit_ref": null, "pull_url": null, "state": "new", "archived": false, "hash": "3d9dd33401668a3dc7f1df89824ff44a076f58fd", "submitter": { "id": 74657, "url": "http://patchwork.ozlabs.org/api/1.2/people/74657/?format=api", "name": "Petr Oros", "email": "poros@redhat.com" }, "delegate": null, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260417145907.696307-4-poros@redhat.com/mbox/", "series": [ { "id": 500359, "url": "http://patchwork.ozlabs.org/api/1.2/series/500359/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=500359", "date": "2026-04-17T14:59:04", "name": "ice: fix missing dpll notifications for SW pins", "version": 7, "mbox": "http://patchwork.ozlabs.org/series/500359/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/patches/2224548/comments/", "check": "pending", "checks": "http://patchwork.ozlabs.org/api/patches/2224548/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=hWiM7pVG;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=2605:bc80:3010::138; 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client-ip=170.10.129.124;\n helo=us-smtp-delivery-124.mimecast.com; envelope-from=poros@redhat.com;\n receiver=<UNKNOWN>", "DMARC-Filter": "OpenDMARC Filter v1.4.2 smtp3.osuosl.org 2830460DFF", "X-MC-Unique": "ewrOrWXhNW-TpdYCXsSPuA-1", "X-Mimecast-MFC-AGG-ID": "ewrOrWXhNW-TpdYCXsSPuA_1776437975", "From": "Petr Oros <poros@redhat.com>", "To": "netdev@vger.kernel.org", "Date": "Fri, 17 Apr 2026 16:59:07 +0200", "Message-ID": "<20260417145907.696307-4-poros@redhat.com>", "In-Reply-To": "<20260417145907.696307-1-poros@redhat.com>", "References": "<20260417145907.696307-1-poros@redhat.com>", "MIME-Version": "1.0", "X-Scanned-By": "MIMEDefang 3.4.1 on 10.30.177.4", "X-Mimecast-MFC-PROC-ID": "t0fTB0h0mmPAcCe_0kBFCB-wRm5PRMEOQT0H1iJPJmg_1776437975", "X-Mimecast-Originator": "redhat.com", "Content-Transfer-Encoding": "8bit", "content-type": "text/plain; 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=1776437985;\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=gbpFvcWrWZxCHOudUuz8MQpAoKeJ9RTgsaIS867Lomg=;\n b=Nwhj2PQhcjEQlc0U5GIWsZriE1tQaNqxbkwvdPVcFtzsoW2sr8QdAg6HxXQ0uC5HQyUdjV\n fWPLp504+Vj4pjfO/y6LXJ6kReONOaEWJ39clr5QABK5LLOuvy4aFptUYfgsE+U+YXHReg\n g9sd4BKxpxoDIAyrHoFf+UkExA42mnI=", "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=Nwhj2PQh" ], "Subject": "[Intel-wired-lan] [PATCH iwl-net v7 3/3] ice: add dpll peer\n notification for paired SMA and U.FL pins", "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>", "Cc": "Ivan Vecera <ivecera@redhat.com>,\n Vadim Fedorenko <vadim.fedorenko@linux.dev>, Jiri Pirko <jiri@resnulli.us>,\n Rinitha S <sx.rinitha@intel.com>,\n Przemek Kitszel <przemyslaw.kitszel@intel.com>,\n Eric Dumazet <edumazet@google.com>,\n Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>,\n Aleksandr Loktionov <aleksandr.loktionov@intel.com>,\n Andrew Lunn <andrew+netdev@lunn.ch>,\n Tony Nguyen <anthony.l.nguyen@intel.com>,\n Simon Horman <horms@kernel.org>, intel-wired-lan@lists.osuosl.org,\n Jacob Keller <jacob.e.keller@intel.com>, Jakub Kicinski <kuba@kernel.org>,\n Paolo Abeni <pabeni@redhat.com>, \"David S. Miller\" <davem@davemloft.net>,\n linux-kernel@vger.kernel.org", "Errors-To": "intel-wired-lan-bounces@osuosl.org", "Sender": "\"Intel-wired-lan\" <intel-wired-lan-bounces@osuosl.org>" }, "content": "SMA and U.FL pins share physical signal paths in pairs (SMA1/U.FL1 and\nSMA2/U.FL2). When one pin's state changes via a PCA9575 GPIO write,\nthe paired pin's state also changes, but no notification is sent for\nthe peer pin. Userspace consumers monitoring the peer via dpll netlink\nsubscribe never learn about the update.\n\nAdd ice_dpll_sw_pin_notify_peer() which sends a change notification for\nthe paired SW pin. Call it from ice_dpll_pin_sma_direction_set(),\nice_dpll_sma_pin_state_set(), and ice_dpll_ufl_pin_state_set() after\npf->dplls.lock is released. Use __dpll_pin_change_ntf() because\ndpll_lock is still held by the dpll netlink layer (dpll_pin_pre_doit).\n\nFixes: 2dd5d03c77e2 (\"ice: redesign dpll sma/u.fl pins control\")\nSigned-off-by: Petr Oros <poros@redhat.com>\n---\n drivers/net/ethernet/intel/ice/ice_dpll.c | 32 +++++++++++++++++++++++\n 1 file changed, 32 insertions(+)", "diff": "diff --git a/drivers/net/ethernet/intel/ice/ice_dpll.c b/drivers/net/ethernet/intel/ice/ice_dpll.c\nindex 11b942b83500fb..be72a076f7a15c 100644\n--- a/drivers/net/ethernet/intel/ice/ice_dpll.c\n+++ b/drivers/net/ethernet/intel/ice/ice_dpll.c\n@@ -1154,6 +1154,32 @@ ice_dpll_input_state_get(const struct dpll_pin *pin, void *pin_priv,\n \t\t\t\t extack, ICE_DPLL_PIN_TYPE_INPUT);\n }\n \n+/**\n+ * ice_dpll_sw_pin_notify_peer - notify the paired SW pin after a state change\n+ * @d: pointer to dplls struct\n+ * @changed: the SW pin that was explicitly changed (already notified by dpll core)\n+ *\n+ * SMA and U.FL pins share physical signal paths in pairs (SMA1/U.FL1 and\n+ * SMA2/U.FL2). When one pin's routing changes via the PCA9575 GPIO\n+ * expander, the paired pin's state may also change. Send a change\n+ * notification for the peer pin so userspace consumers monitoring the\n+ * peer via dpll netlink learn about the update.\n+ *\n+ * Context: Called from dpll_pin_ops callbacks after pf->dplls.lock is\n+ * released. Uses __dpll_pin_change_ntf() because dpll_lock is\n+ * still held by the dpll netlink layer.\n+ */\n+static void ice_dpll_sw_pin_notify_peer(struct ice_dplls *d,\n+\t\t\t\t\tstruct ice_dpll_pin *changed)\n+{\n+\tstruct ice_dpll_pin *peer;\n+\n+\tpeer = (changed >= d->sma && changed < d->sma + ICE_DPLL_PIN_SW_NUM) ?\n+\t\t&d->ufl[changed->idx] : &d->sma[changed->idx];\n+\tif (peer->pin)\n+\t\t__dpll_pin_change_ntf(peer->pin);\n+}\n+\n /**\n * ice_dpll_sma_direction_set - set direction of SMA pin\n * @p: pointer to a pin\n@@ -1344,6 +1370,8 @@ ice_dpll_ufl_pin_state_set(const struct dpll_pin *pin, void *pin_priv,\n \n unlock:\n \tmutex_unlock(&pf->dplls.lock);\n+\tif (!ret)\n+\t\tice_dpll_sw_pin_notify_peer(&pf->dplls, p);\n \n \treturn ret;\n }\n@@ -1462,6 +1490,8 @@ ice_dpll_sma_pin_state_set(const struct dpll_pin *pin, void *pin_priv,\n \n unlock:\n \tmutex_unlock(&pf->dplls.lock);\n+\tif (!ret)\n+\t\tice_dpll_sw_pin_notify_peer(&pf->dplls, sma);\n \n \treturn ret;\n }\n@@ -1657,6 +1687,8 @@ ice_dpll_pin_sma_direction_set(const struct dpll_pin *pin, void *pin_priv,\n \tmutex_lock(&pf->dplls.lock);\n \tret = ice_dpll_sma_direction_set(p, direction, extack);\n \tmutex_unlock(&pf->dplls.lock);\n+\tif (!ret)\n+\t\tice_dpll_sw_pin_notify_peer(&pf->dplls, p);\n \n \treturn ret;\n }\n", "prefixes": [ "iwl-net", "v7", "3/3" ] }