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Miller" , Vladimir Oltean Subject: [PATCH net-next] enetc: Use generic rule to map Tx rings to interrupt vectors Date: Fri, 9 Apr 2021 10:16:13 +0300 Message-Id: <20210409071613.28912-1-claudiu.manoil@nxp.com> X-Mailer: git-send-email 2.17.1 Content-Type: text/plain X-Originating-IP: [83.217.231.2] X-ClientProxiedBy: AM0PR06CA0087.eurprd06.prod.outlook.com (2603:10a6:208:fa::28) To AM0PR04MB6754.eurprd04.prod.outlook.com (2603:10a6:208:170::28) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from lsv15141.swis.ro-buh01.nxp.com (83.217.231.2) by AM0PR06CA0087.eurprd06.prod.outlook.com (2603:10a6:208:fa::28) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4020.17 via Frontend Transport; Fri, 9 Apr 2021 07:16:29 +0000 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 1ee8800d-d51a-4832-f87e-08d8fb276546 X-MS-TrafficTypeDiagnostic: AM9PR04MB7682: X-MS-Exchange-Transport-Forked: True X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:5516; 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X-MS-Exchange-AntiSpam-MessageData: =?us-ascii?Q?XirS+UaiP39Zk9+v4gDL/WZsANHfXllBlHm9mQx6ryCKgzSFU8kG+KCvhtcu?= =?us-ascii?Q?Y18r40LKEWfsNubWzTlJf0YjoYnyoJN82ZJs2BfxpdSX6WjJ4oFkhTMwXtae?= =?us-ascii?Q?AyL6exuhnXr1KeBY+FDtBCxpw5P7WJ53aUuk+ME+f52RbfiKLq48rLIKAUZW?= =?us-ascii?Q?v5DFdPZmmASRvicE6D3RHEZp2ja1vsjIFBHshwZMrwfSDGyE2lmj9sdp/NlR?= =?us-ascii?Q?900K3bRYIRFefZ+xSEQD0mCkOYc5Xg7lD/cjjMvrEeGE/8Jkggzn8Y3NRl1f?= =?us-ascii?Q?0oq5dO2k72RNCwcTZWyTjJlN3JV+KlR09tx/Q4fmIc+v+p/hd0MoIVViRCps?= =?us-ascii?Q?Ir5DFM7gzkr56FF3ZZR4ALQxNeaAAFVLmKnFLIyrsmDrhkZEQSeUnzVZ+FRN?= =?us-ascii?Q?+ZIS79Qt8q5HMbMIjzjVN/72pr13F4QYpzWIyrZ0/QcOApkD1hN0+IsEkKiv?= =?us-ascii?Q?qBUIkAMwdxd99WsHpLJLVEnOtMzd2s3uLAlsdeWgCp5/pH18YDHeKNH/Xeyb?= =?us-ascii?Q?Dizqs4IKk09PrC6Ju2tK1ETK0/KLwXqFKQ54DGXtJW/dPpWxYmqTENGRGDR4?= =?us-ascii?Q?SD7x8GOjve1VfnkDmaK0ne+3XHvGDth5s9z7nf/tbjLWeWORrhp18uhpqpYY?= =?us-ascii?Q?RN8/hNmLJRPd2H4fh0FO3qr/VvXgqT9QhUDP3Ra39oziJDrQlK/4u+uV2DEt?= =?us-ascii?Q?PXE81fR1p96yYcson7QxgL1xR0OATZKJmVQOoGJvy5ZqB3nqFRCaZlDAxdZt?= =?us-ascii?Q?qc8vPCbPvwaJqiEkeHo35RJd66LhI3SNpE+doGJ/U7uresTVpLqsynLtbRMB?= =?us-ascii?Q?omv+DN+QupiXC+or4Mh8btkkCJJIUSTvv/cdpTglmdtj5CVdIma2E3Z72l5P?= =?us-ascii?Q?eT1O93aER5JbOCnaXlbwMUlZxwMIdOikD1vMNQwPnwMzRjbfXCJAo+rPwmxq?= =?us-ascii?Q?eHiCrNRZucO2cvcXKK7+IDZ+VL9TCrvJL8cdbzs0hlnJL4bgFNF6oTv0rsZ4?= =?us-ascii?Q?JucQ0cVOUpDrbXCBzavAYdpVFbs8dnKS7aeQc2N1IZyA6q8e/Nunq2m1mDwp?= =?us-ascii?Q?ujtP6/ySKbTZZHAEAG3dnTx0LGIRISeMBuB9p6mnOtcCGXIBqSh7l0u/HIdV?= =?us-ascii?Q?iL710GH3+GEGB97mcEh9bJG+Shmtwjd5Bf6ng1qzbZkB1PO6QQb+oUVE3ln7?= =?us-ascii?Q?P4hSd8faasQtLGYCW/7JM6awRYunhGtZHd+/siKb4Huu0kY5Q6jnVgWNdFiQ?= =?us-ascii?Q?00WyolFZZsOA3rcsAqdaS8wL+NC4bUcsYFjlu9YHoiT6H8lk7kED8JTnqU8G?= =?us-ascii?Q?yq9xK57UDh82S9fJYRwfEsLJ?= X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 1ee8800d-d51a-4832-f87e-08d8fb276546 X-MS-Exchange-CrossTenant-AuthSource: AM0PR04MB6754.eurprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 09 Apr 2021 07:16:29.9488 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: v6EKRvzaUjvlC1BdQKBm3ckJ+dlKyp1yBkoLKo+UnPvV3CbCg9vb6tlTHXdvZm5UwSi1AphiJIBpL5YOubv7Fw== X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM9PR04MB7682 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Even if the current mapping is correct for the 1 CPU and 2 CPU cases (currently enetc is included in SoCs with up to 2 CPUs only), better use a generic rule for the mapping to cover all possible cases. The number of CPUs is the same as the number of interrupt vectors: Per device Tx rings - device_tx_ring[idx], where idx = 0..n_rings_total-1 Per interrupt vector Tx rings - int_vector[i].ring[j], where i = 0..n_int_vects-1 j = 0..n_rings_per_v-1 Mapping rule - n_rings_per_v = n_rings_total / n_int_vects for i = 0..n_int_vects - 1: for j = 0..n_rings_per_v - 1: idx = n_int_vects * j + i int_vector[i].ring[j] <- device_tx_ring[idx] Signed-off-by: Claudiu Manoil --- drivers/net/ethernet/freescale/enetc/enetc.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/net/ethernet/freescale/enetc/enetc.c b/drivers/net/ethernet/freescale/enetc/enetc.c index 57049ae97201..1646aaa68bd1 100644 --- a/drivers/net/ethernet/freescale/enetc/enetc.c +++ b/drivers/net/ethernet/freescale/enetc/enetc.c @@ -2343,11 +2343,7 @@ int enetc_alloc_msix(struct enetc_ndev_priv *priv) int idx; /* default tx ring mapping policy */ - if (priv->bdr_int_num == ENETC_MAX_BDR_INT) - idx = 2 * j + i; /* 2 CPUs */ - else - idx = j + i * v_tx_rings; /* default */ - + idx = priv->bdr_int_num * j + i; __set_bit(idx, &v->tx_rings_map); bdr = &v->tx_ring[j]; bdr->index = idx; -- 2.25.1