{"id":2219503,"url":"http://patchwork.ozlabs.org/api/patches/2219503/?format=json","web_url":"http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260403055904.3800150-1-aleksandr.loktionov@intel.com/","project":{"id":46,"url":"http://patchwork.ozlabs.org/api/projects/46/?format=json","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":"<20260403055904.3800150-1-aleksandr.loktionov@intel.com>","list_archive_url":null,"date":"2026-04-03T05:59:04","name":"[iwl-net] ice: fix netdev allocation with max queues instead of default","commit_ref":null,"pull_url":null,"state":"rejected","archived":false,"hash":"041c06d98a62642fd6d14341155c55295f8880b6","submitter":{"id":75597,"url":"http://patchwork.ozlabs.org/api/people/75597/?format=json","name":"Loktionov, Aleksandr","email":"aleksandr.loktionov@intel.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/intel-wired-lan/patch/20260403055904.3800150-1-aleksandr.loktionov@intel.com/mbox/","series":[{"id":498593,"url":"http://patchwork.ozlabs.org/api/series/498593/?format=json","web_url":"http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=498593","date":"2026-04-03T05:59:04","name":"[iwl-net] ice: fix netdev allocation with max queues instead of default","version":1,"mbox":"http://patchwork.ozlabs.org/series/498593/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2219503/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2219503/checks/","tags":{},"related":[],"headers":{"Return-Path":"","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=zUmn3vbm;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=2605:bc80:3010::137; helo=smtp4.osuosl.org;\n envelope-from=intel-wired-lan-bounces@osuosl.org;\n receiver=patchwork.ozlabs.org)"],"Received":["from smtp4.osuosl.org (smtp4.osuosl.org [IPv6:2605:bc80:3010::137])\n\t(using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)\n\t key-exchange x25519 server-signature ECDSA (secp384r1) server-digest SHA384)\n\t(No client certificate requested)\n\tby legolas.ozlabs.org (Postfix) with ESMTPS id 4fn7Mg6YqDz1yD3\n\tfor ; Fri, 03 Apr 2026 16:59:11 +1100 (AEDT)","from localhost (localhost [127.0.0.1])\n\tby smtp4.osuosl.org (Postfix) with ESMTP id 5865040DA6;\n\tFri, 3 Apr 2026 05:59:10 +0000 (UTC)","from smtp4.osuosl.org ([127.0.0.1])\n by localhost (smtp4.osuosl.org [127.0.0.1]) (amavis, port 10024) with ESMTP\n id Mr0gf66lDzHP; Fri, 3 Apr 2026 05:59:09 +0000 (UTC)","from lists1.osuosl.org (lists1.osuosl.org [140.211.166.142])\n\tby smtp4.osuosl.org (Postfix) with ESMTP id C716B40E0C;\n\tFri, 3 Apr 2026 05:59:09 +0000 (UTC)","from smtp4.osuosl.org (smtp4.osuosl.org [140.211.166.137])\n by lists1.osuosl.org (Postfix) with ESMTP id D98F41F3\n for ; Fri, 3 Apr 2026 05:59:08 +0000 (UTC)","from localhost (localhost [127.0.0.1])\n by smtp4.osuosl.org (Postfix) with ESMTP id B97F940E0C\n for ; Fri, 3 Apr 2026 05:59:08 +0000 (UTC)","from smtp4.osuosl.org ([127.0.0.1])\n by localhost (smtp4.osuosl.org [127.0.0.1]) (amavis, port 10024) with ESMTP\n id xNMBdodC-Jwp for ;\n Fri, 3 Apr 2026 05:59:08 +0000 (UTC)","from mgamail.intel.com (mgamail.intel.com [192.198.163.9])\n by smtp4.osuosl.org (Postfix) with ESMTPS id C42B340DA6\n for ; Fri, 3 Apr 2026 05:59:07 +0000 (UTC)","from fmviesa002.fm.intel.com ([10.60.135.142])\n by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;\n 02 Apr 2026 22:59:06 -0700","from amlin-019-225.igk.intel.com ([10.102.19.225])\n by fmviesa002.fm.intel.com with ESMTP; 02 Apr 2026 22:59:05 -0700"],"X-Virus-Scanned":["amavis at osuosl.org","amavis at osuosl.org"],"X-Comment":"SPF check N/A for local connections - client-ip=140.211.166.142;\n helo=lists1.osuosl.org; envelope-from=intel-wired-lan-bounces@osuosl.org;\n receiver= ","DKIM-Filter":["OpenDKIM Filter v2.11.0 smtp4.osuosl.org C716B40E0C","OpenDKIM Filter v2.11.0 smtp4.osuosl.org C42B340DA6"],"DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/relaxed; d=osuosl.org;\n\ts=default; t=1775195949;\n\tbh=tJmZQn4lwZZ2ESdbtMM0xOs761nklvQXY4o2WVIu1P0=;\n\th=From:To:Cc:Date:Subject:List-Id:List-Unsubscribe:List-Archive:\n\t List-Post:List-Help:List-Subscribe:From;\n\tb=zUmn3vbmv8b6soU/P6bKC8SHSE5nfPGOSKHI9uQLowB/9xNnkqjgIniXD3seccgnu\n\t bdHjq0Qy9HXO/EcuaxJyuivlRlgZWjdi1X1xuus4E1NkL+hMtXxkLEbSaj7xdiIw/C\n\t qlqYsVNI2a9PMA7MRcPlFl6n4FUaCdGAVqe2qQ3Iw7j5rD/+nlGXfgD5gWZsqJ7551\n\t Vqow4iehkfEyHGVpN7PB5RMEZhgao2JOANCpytGNj22gSLQUDqKqEleYKU166w7YQI\n\t V4INNEPVILOHtgnfNWkaPd0uy85g0w2HWJVXgAQM+1wzY+QGTyGRR9L9gSHfGviNz+\n\t DgWkyINJRcAgw==","Received-SPF":"Pass (mailfrom) identity=mailfrom; client-ip=192.198.163.9;\n helo=mgamail.intel.com; envelope-from=aleksandr.loktionov@intel.com;\n receiver=","DMARC-Filter":"OpenDMARC Filter v1.4.2 smtp4.osuosl.org C42B340DA6","X-CSE-ConnectionGUID":["Rn01+92LSKGpGV+ILW9pWg==","59TdPBPNQkGF9nI7N6QLsA=="],"X-CSE-MsgGUID":["S7lFV9xsQt2rPFREpua8jQ==","y+8mW7HARyW9Tog33RWInw=="],"X-IronPort-AV":["E=McAfee;i=\"6800,10657,11747\"; a=\"86964800\"","E=Sophos;i=\"6.23,157,1770624000\"; d=\"scan'208\";a=\"86964800\"","E=Sophos;i=\"6.23,157,1770624000\"; d=\"scan'208\";a=\"250252556\""],"X-ExtLoop1":"1","From":"Aleksandr Loktionov ","To":"intel-wired-lan@lists.osuosl.org, anthony.l.nguyen@intel.com,\n aleksandr.loktionov@intel.com","Cc":"netdev@vger.kernel.org,\n\tAnton Loktion ","Date":"Fri, 3 Apr 2026 07:59:04 +0200","Message-ID":"<20260403055904.3800150-1-aleksandr.loktionov@intel.com>","X-Mailer":"git-send-email 2.52.0","MIME-Version":"1.0","Content-Transfer-Encoding":"8bit","X-Mailman-Original-DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple;\n d=intel.com; i=@intel.com; q=dns/txt; s=Intel;\n t=1775195948; x=1806731948;\n h=from:to:cc:subject:date:message-id:mime-version:\n content-transfer-encoding;\n bh=DRP+DtgotH+uHkIjI5tTy7Oo1rAFm5KnpRPZroqjVLs=;\n b=S18LUnFJZJKiJXEYRR7ceVt9+zO9LHHw74mQiZz58Rr1LMsnsplW2zSX\n OFuZBQAkqyE0c0S70wVkSa8VPdFI6rmekIXA3jb0MLLBkP0TyEn8sndtS\n TV/k0IBgkng+iWGaBkWk6UDI/lGLmjAcgN7TuL70gcU8xneIYSAgTLUzz\n kXqTCuJLFsMn8mCdfHdzeMo9Teo1+jLk/JTbrOkRpALSqsSGNRnAnS1SZ\n U143bMryZ3lNpA5YKkPwyhy3C7zvqZQ9DF2U85XijlHwBteEkEdliHyJU\n M3TzVoaX+tYdGmT4v5A5ZeHO9xW+XdsjN4N2sDZv2a8p8LhEWMvUL1L0b\n w==;","X-Mailman-Original-Authentication-Results":["smtp4.osuosl.org;\n dmarc=pass (p=none dis=none)\n header.from=intel.com","smtp4.osuosl.org;\n dkim=pass (2048-bit key,\n unprotected) header.d=intel.com header.i=@intel.com header.a=rsa-sha256\n header.s=Intel header.b=S18LUnFJ"],"Subject":"[Intel-wired-lan] [PATCH iwl-net] ice: fix netdev allocation with\n max queues instead of default","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 ","List-Unsubscribe":",\n ","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n ","Errors-To":"intel-wired-lan-bounces@osuosl.org","Sender":"\"Intel-wired-lan\" "},"content":"From: Anton Loktion \n\nCommit ee13aa1a2c5a (\"ice: use netif_get_num_default_rss_queues()\")\nchanged the default queue count from num_online_cpus() to\nnetif_get_num_default_rss_queues() which returns roughly half the CPU\ncount. ice_cfg_netdev() passes vsi->alloc_txq and vsi->alloc_rxq to\nalloc_etherdev_mqs(), so after that commit the netdevice is created with\nonly ~half the CPU count of Tx/Rx queues (dev->num_tx_queues). However\nice_get_channels() still reports the old maximum (num_online_cpus()),\nand ice_set_channels() accepts requests up to that limit. When ethtool\n -L sets combined to the maximum, rings are assigned q_index values up to\nnum_online_cpus()-1, which exceed dev->num_tx_queues:\n\n # ethtool -L eth0 combined 96\n\n ice 0000:18:00.0: Failed to allocate 96 q_vectors for VSI 12, new value 49\n WARNING: CPU: 25 PID: 4484 at net/core/dev.c:2853 __netif_set_xps_queue+0x835/0x9a0\n [...]\n Call Trace:\n \n netif_set_xps_queue+0x82/0xc0\n ice_vsi_cfg_txq+0x124/0x440 [ice]\n ice_vsi_cfg_lan_txqs+0x53/0x90 [ice]\n ice_vsi_cfg_lan+0x40/0x190 [ice]\n ice_vsi_open+0x2b/0x120 [ice]\n ice_vsi_recfg_qs+0x94/0x120 [ice]\n ice_set_channels+0x261/0x370 [ice]\n [...]\n\nSUT: Intel S2600WFT, 96 CPUs (Xeon Platinum 8260), E810-C for QSFP\n\nReproduce:\n ethtool -L combined $(nproc)\n\nUse min(num_online_cpus(), hw queue cap) for alloc_etherdev_mqs() to\nsize the netdevice for the actual maximum queue count, matching what\nice_get_channels() reports through ethtool.\n\nFixes: ee13aa1a2c5a (\"ice: use netif_get_num_default_rss_queues()\")\nCc: stable@vger.kernel.org\nSigned-off-by: Aleksandr Loktionov \n---\n drivers/net/ethernet/intel/ice/ice_main.c | 7 +++++--\n 1 file changed, 5 insertions(+), 2 deletions(-)","diff":"diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c\nindex 4da37ca..5c21c2a 100644\n--- a/drivers/net/ethernet/intel/ice/ice_main.c\n+++ b/drivers/net/ethernet/intel/ice/ice_main.c\n@@ -4699,8 +4699,11 @@ static int ice_cfg_netdev(struct ice_vsi *vsi)\n \tstruct net_device *netdev;\n \tu8 mac_addr[ETH_ALEN];\n \n-\tnetdev = alloc_etherdev_mqs(sizeof(*np), vsi->alloc_txq,\n-\t\t\t\t vsi->alloc_rxq);\n+\tnetdev = alloc_etherdev_mqs(sizeof(*np),\n+\t\t\t\t min_t(int, num_online_cpus(),\n+\t\t\t\t\t vsi->back->hw.func_caps.common_cap.num_txq),\n+\t\t\t\t min_t(int, num_online_cpus(),\n+\t\t\t\t\t vsi->back->hw.func_caps.common_cap.num_rxq));\n \tif (!netdev)\n \t\treturn -ENOMEM;\n \n","prefixes":["iwl-net"]}