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{ "id": 2220957, "url": "http://patchwork.ozlabs.org/api/1.1/covers/2220957/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/20260408131216.2662245-1-aleksandr.loktionov@intel.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": "<20260408131216.2662245-1-aleksandr.loktionov@intel.com>", "date": "2026-04-08T13:12:08", "name": "[iwl-next,v2,0/8] ixgbe: nits and improvements", "submitter": { "id": 75597, "url": "http://patchwork.ozlabs.org/api/1.1/people/75597/?format=api", "name": "Loktionov, Aleksandr", "email": "aleksandr.loktionov@intel.com" }, "mbox": "http://patchwork.ozlabs.org/project/intel-wired-lan/cover/20260408131216.2662245-1-aleksandr.loktionov@intel.com/mbox/", "series": [ { "id": 499140, "url": "http://patchwork.ozlabs.org/api/1.1/series/499140/?format=api", "web_url": "http://patchwork.ozlabs.org/project/intel-wired-lan/list/?series=499140", "date": "2026-04-08T13:12:08", "name": "ixgbe: nits and improvements", "version": 2, "mbox": "http://patchwork.ozlabs.org/series/499140/mbox/" } ], "comments": "http://patchwork.ozlabs.org/api/covers/2220957/comments/", "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=COUxdM7u;\n\tdkim-atps=neutral", "legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=osuosl.org\n (client-ip=2605:bc80:3010::137; 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envelope-from=intel-wired-lan-bounces@osuosl.org;\n receiver=<UNKNOWN> ", "DKIM-Filter": [ "OpenDKIM Filter v2.11.0 smtp4.osuosl.org 2F60340EC1", "OpenDKIM Filter v2.11.0 smtp4.osuosl.org 9A1B840E98" ], "DKIM-Signature": "v=1; a=rsa-sha256; c=relaxed/relaxed; d=osuosl.org;\n\ts=default; t=1775653942;\n\tbh=965ivX3ruq3mNfDwovhEX4tCZQ9C8OdGvYMdrkq3s9w=;\n\th=From:To:Cc:Date:Subject:List-Id:List-Unsubscribe:List-Archive:\n\t List-Post:List-Help:List-Subscribe:From;\n\tb=COUxdM7uTOQEtNmHoIV9fo621koxy6pPB0SHNSR0H1fZYuuhB+VIdLyxWJaDc0wfF\n\t ELG9r7jEl3tHyR6JZB/ZUWvWd+T57xypd7r9cYt+NBcwiSdt6ujKAH5NEMQx8R68/u\n\t PaapApcsgixsXo/E5DHMMrk8yqmx5u+kkkQFLen04BHD6FYllDCiiZTcQgf/1Knj/B\n\t bz6KVYk2sF0LmNTYwgmdi1gOdbCCZ8004aBsHl+SoOA/cKX7V5u90sfkoKWBQmbOyC\n\t Tv9qt8c1yOc8C6VZ+hihHP9R3b7eXR6o0I6uaQhywQpFbBhAE70GJ9C0OEuOaWL0e5\n\t WqqTyzt2oDTXQ==", "Received-SPF": "Pass (mailfrom) identity=mailfrom; client-ip=192.198.163.7;\n helo=mgamail.intel.com; envelope-from=aleksandr.loktionov@intel.com;\n receiver=<UNKNOWN>", "DMARC-Filter": "OpenDMARC Filter v1.4.2 smtp4.osuosl.org 9A1B840E98", "X-CSE-ConnectionGUID": [ "tFHHvAFnS9+a6CH6fOE1VQ==", "x2+7OnqDQAqqhJSJD2OAIQ==" ], "X-CSE-MsgGUID": [ "WOsbIXf0R6mkkP4gspvgwQ==", "OzxT01VaRrql0uo/QazW1A==" ], "X-IronPort-AV": [ "E=McAfee;i=\"6800,10657,11752\"; a=\"102087254\"", "E=Sophos;i=\"6.23,167,1770624000\"; d=\"scan'208\";a=\"102087254\"", "E=Sophos;i=\"6.23,167,1770624000\"; d=\"scan'208\";a=\"228715050\"" ], "X-ExtLoop1": "1", "From": "Aleksandr Loktionov <aleksandr.loktionov@intel.com>", "To": "intel-wired-lan@lists.osuosl.org, anthony.l.nguyen@intel.com,\n aleksandr.loktionov@intel.com", "Cc": "netdev@vger.kernel.org", "Date": "Wed, 8 Apr 2026 15:12:08 +0200", "Message-ID": "<20260408131216.2662245-1-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=1775653940; x=1807189940;\n h=from:to:cc:subject:date:message-id:mime-version:\n content-transfer-encoding;\n bh=ntpjB1EZtCslNyS93hZX36BdvkZc2KDqWWKQnlUrZQk=;\n b=Tl1htdcaGJBqoQnVOC0fynfZjakxZ0xzPub+UpAtEbgNLP+FvtML5/4y\n 4crNs4tvZrki2+8I4OYICGYjZSUjHxVEdL84UaBR/prdPuAOO/PrPTIPy\n P8Tx2SWlbBUbX6YcSeZsSZOszy7W5Hims01noxAya6ChqbdpUXpBuDqT6\n iM00snCAaOmZUmFfGVOnW0W1zUnPNr6QezyJhDKeEsfM5Dgwt/ZLWJ2hd\n 9zwI85nOuOP6pYxcBl+54ITmaswUkCtAn2XZ6kWHFqEhQJXc1C6a8KanM\n 3qgSi0ORNbRRBG5ZmXfh7jd5kSOBZRwBiX69qpcAXB0/VF6aaAUpwnFfR\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=Tl1htdca" ], "Subject": "[Intel-wired-lan] [PATCH iwl-next v2 0/8] ixgbe: nits and\n improvements", "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": "Eight cleanups and improvements for the ixgbe driver.\n\nPatches 1-4 split the adaptive-ITR algorithm improvements into\nindependently reviewable pieces as requested by Simon Horman. Each\npatch is self-contained and can be reviewed and reverted independently:\n 1. Lower IXGBE_ITR_ADAPTIVE_MAX_USECS from 126 to 84 to prevent RX\n starvation at minimum bulk-mode rates.\n 2. Add ixgbe_container_is_rx() helper and refine the RX-specific\n latency algorithm (thresholds, no-packet handling, mode tracking).\n 3. Limit ITR decrease in latency mode to at most 2 us per update so\n ACK workloads do not overdrive moderation.\n 4. Add IXGBE_ITR_ADAPTIVE_MASK_USECS constant to replace the\n open-coded ~IXGBE_ITR_ADAPTIVE_LATENCY complement in ixgbe_set_itr.\n\nPatch 5 removes ixgbe_ping_all_vfs() from both ixgbe_watchdog_link_is_up()\nand ixgbe_watchdog_link_is_down(). The original submission only removed\nthe call from the link-up path; this version also removes it from the\nlink-down path, which carries the same race window against VF mailbox\ninitialization.\n\nPatch 6 replaces ktime_to_ns(ktime_get_real()) with ktime_get_real_ns().\n\nPatch 7 restructures ixgbe_fcoe_ddp_setup() so that dma_pool_alloc()\nis called outside the get_cpu()/put_cpu() preemption-disabled section,\nenabling GFP_KERNEL instead of GFP_ATOMIC. The prior submission left\nthe allocation inside the preempt-off block (GFP_KERNEL can sleep under\ndirect reclaim, which triggers a BUG() with preemption disabled).\n\nPatch 8 fixes six local variables declared as u32 that are used to\nstore signed kernel error codes. Reviewed by Simon Horman.\n\nChanges in v2:\n - 1-4/8: Split monolithic ITR cleanup into four independent patches\n as requested by Simon Horman.\n - 5/8: Extend fix to also remove ixgbe_ping_all_vfs() from\n ixgbe_watchdog_link_is_down() to cover the identical race.\n - 6/8: No code change; add [N/M] numbering.\n - 7/8: Move dma_pool_alloc() outside get_cpu()/put_cpu() so\n GFP_KERNEL is used safely without sleeping under preempt-off.\n - 8/8: Add Reviewed-by: Simon Horman; no code change.\n\n---\n\nAlexander Duyck (4):\n ixgbe: lower IXGBE_ITR_ADAPTIVE_MAX_USECS to prevent RX starvation\n ixgbe: add ixgbe_container_is_rx() helper and refine RX adaptive ITR\n ixgbe: limit ITR decrease in latency mode to prevent ACK overdrive\n ixgbe: add IXGBE_ITR_ADAPTIVE_MASK_USECS constant\n\nAleksandr Loktionov (2):\n ixgbe: remove ixgbe_ping_all_vfs() from link state change handlers\n ixgbe: use GFP_KERNEL in ixgbe_fcoe_ddp_setup()\n\nJacob Keller (1):\n ixgbe: use ktime_get_real_ns() in ixgbe_ptp_reset()\n\nAleksandr Loktionov (1):\n ixgbe: use int instead of u32 for error code variables\n\n drivers/net/ethernet/intel/ixgbe/ixgbe.h | 5 +-\n drivers/net/ethernet/intel/ixgbe/ixgbe_fcoe.c | 50 +++++++----\n drivers/net/ethernet/intel/ixgbe/ixgbe_main.c | 97 ++++++++++++------\n drivers/net/ethernet/intel/ixgbe/ixgbe_phy.c | 6 +-\n drivers/net/ethernet/intel/ixgbe/ixgbe_ptp.c | 2 +-\n drivers/net/ethernet/intel/ixgbe/ixgbe_x550.c | 12 +--\n 6 files changed, 113 insertions(+), 59 deletions(-)" }