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Fri, 28 Oct 2022 00:10:02 -0500 From: Sarath Babu Naidu Gaddam To: , , , , CC: , , , , , , , , , Subject: [PATCH 5/5] dmaengine: xilinx_dma: Use tasklet_hi_schedule for timing critical usecase Date: Thu, 27 Oct 2022 23:09:40 -0600 Message-ID: <20221028050940.27888-6-sarath.babu.naidu.gaddam@amd.com> X-Mailer: git-send-email 2.36.1 In-Reply-To: <20221028050940.27888-1-sarath.babu.naidu.gaddam@amd.com> References: <20221028050940.27888-1-sarath.babu.naidu.gaddam@amd.com> MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BN8NAM11FT070:EE_|IA1PR12MB7566:EE_ X-MS-Office365-Filtering-Correlation-Id: a1ed7878-fb25-4e90-6608-08dab8a2cae2 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB03.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230022)(4636009)(136003)(39860400002)(376002)(346002)(396003)(451199015)(40470700004)(46966006)(36840700001)(8936002)(186003)(26005)(47076005)(426003)(83380400001)(1076003)(5660300002)(2906002)(336012)(4744005)(36860700001)(41300700001)(478600001)(40460700003)(54906003)(316002)(6666004)(86362001)(356005)(81166007)(2616005)(103116003)(82740400003)(70206006)(70586007)(82310400005)(40480700001)(36756003)(110136005)(8676002)(4326008)(36900700001);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 28 Oct 2022 05:10:55.3925 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a1ed7878-fb25-4e90-6608-08dab8a2cae2 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB03.amd.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT070.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA1PR12MB7566 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="utf-8" From: Radhey Shyam Pandey Schedule tasklet with high priority to ensure that callback processing is prioritized. It improves throughput for netdev dma clients. Signed-off-by: Radhey Shyam Pandey Signed-off-by: Sarath Babu Naidu Gaddam --- drivers/dma/xilinx/xilinx_dma.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dm= a.c index 43737e0f3625..bee21e4f1e59 100644 --- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -1839,7 +1839,7 @@ static irqreturn_t xilinx_mcdma_irq_handler(int irq, = void *data) spin_unlock(&chan->lock); } =20 - tasklet_schedule(&chan->tasklet); + tasklet_hi_schedule(&chan->tasklet); return IRQ_HANDLED; } =20 --=20 2.25.1