From patchwork Mon Jan 29 06:21:03 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Souradeep Chakrabarti X-Patchwork-Id: 13534955 Received: from linux.microsoft.com (linux.microsoft.com [13.77.154.182]) by smtp.subspace.kernel.org (Postfix) with ESMTP id DA3424E1BA; Mon, 29 Jan 2024 06:21:29 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=13.77.154.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706509291; cv=none; b=QWSir/IqRCoH8YjZtzc3b7UO8+GGuW3eGyWhyMLZyMme4b5UHB7jEuA7T4vuiECjoNcovW2DKl5AhPmU5Yo3hbvkmi0sTrUginyzcjTuUROnzvghJFBoVVotbyBCoJUfsDAdUeXqMTPGF2QX7Jx3iN+YOW81UJQlPEDlsZ33/9Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706509291; c=relaxed/simple; bh=ec1CV2THC3H1N8o33FHc4Q4ijpR0Th7MXa1oozMc+Ew=; h=From:To:Cc:Subject:Date:Message-Id; b=Cgzwo5g4fFeP7Asaamc+syDeScPW7t6xZZY5XAoYeqjA3Pmqi6PIBzWBXBTQTPkvs2AbJmxxj3ruepnD9wJVVZQ0YHiKqE9F8xtko0VPuZ5dJYGzveaANAcPrskVV0H4ThwV0xdfcZq7pF9JZb3PqemLz8xWThBi1lKqJoK7rTI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com; spf=pass smtp.mailfrom=linux.microsoft.com; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b=jSZtqzg7; arc=none smtp.client-ip=13.77.154.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.microsoft.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.microsoft.com header.i=@linux.microsoft.com header.b="jSZtqzg7" Received: by linux.microsoft.com (Postfix, from userid 1099) id 108FC20E67C9; Sun, 28 Jan 2024 22:21:23 -0800 (PST) DKIM-Filter: OpenDKIM Filter v2.11.0 linux.microsoft.com 108FC20E67C9 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.microsoft.com; s=default; t=1706509283; bh=jcQHPDqDH8my6Yg3JLMYBYEVM6vbGA15v2Ma7JnnpbI=; h=From:To:Cc:Subject:Date:From; b=jSZtqzg7Z/LHGLI+tcluq4k/xiPa8sO7gsoNtcAZaeIUYAXXZzaeeBvOtRXMg+DFM QFr1bU7qG+LYs+qrJB3HGsQsvviftwdDy2sF6wAyoUZRq7llrFBht1cVV+OH+8WwFD lg0saiuaj7R/A/qWiKyRJCsbZp7mfwD8F3OaywkQ= From: Souradeep Chakrabarti To: kys@microsoft.com, haiyangz@microsoft.com, wei.liu@kernel.org, decui@microsoft.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, longli@microsoft.com, yury.norov@gmail.com, leon@kernel.org, cai.huoqing@linux.dev, ssengar@linux.microsoft.com, vkuznets@redhat.com, tglx@linutronix.de, linux-hyperv@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, linux-rdma@vger.kernel.org Cc: schakrabarti@microsoft.com, paulros@microsoft.com, Souradeep Chakrabarti Subject: [PATCH 0/4 V3 net-next] net: mana: Assigning IRQ affinity on HT cores Date: Sun, 28 Jan 2024 22:21:03 -0800 Message-Id: <1706509267-17754-1-git-send-email-schakrabarti@linux.microsoft.com> X-Mailer: git-send-email 1.8.3.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: X-Patchwork-Delegate: kuba@kernel.org This patch set introduces a new helper function irq_setup(), to optimize IRQ distribution for MANA network devices. The patch set makes the driver working 15% faster than with cpumask_local_spread(). Souradeep Chakrabarti (1): net: mana: Assigning IRQ affinity on HT cores Yury Norov (3): cpumask: add cpumask_weight_andnot() cpumask: define cleanup function for cpumasks net: mana: add a function to spread IRQs per CPUs .../net/ethernet/microsoft/mana/gdma_main.c | 88 ++++++++++++++++--- include/linux/bitmap.h | 12 +++ include/linux/cpumask.h | 16 ++++ lib/bitmap.c | 7 ++ 4 files changed, 113 insertions(+), 10 deletions(-) --- Change: V1 -> V2: Added some details on the performance study on the patch 4/4. V2 -> V3: Commit message has been modified, fixed the table in patch 4/4.