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Mon, 4 Feb 2019 17:00:46 +0000 From: Ioana Ciocoi Radulescu To: "netdev@vger.kernel.org" , "davem@davemloft.net" CC: Ioana Ciornei , "brouer@redhat.com" , "ilias.apalodimas@linaro.org" Subject: [PATCH net-next 4/4] dpaa2-eth: Update buffer pool refill threshold Thread-Topic: [PATCH net-next 4/4] dpaa2-eth: Update buffer pool refill threshold Thread-Index: AQHUvKsmQWoRYr5rdkKAgD9PJmtWTg== Date: Mon, 4 Feb 2019 17:00:37 +0000 Message-ID: <1549299625-28399-5-git-send-email-ruxandra.radulescu@nxp.com> References: <1549299625-28399-1-git-send-email-ruxandra.radulescu@nxp.com> In-Reply-To: <1549299625-28399-1-git-send-email-ruxandra.radulescu@nxp.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: VI1PR0701CA0060.eurprd07.prod.outlook.com (2603:10a6:800:5f::22) To AM0PR04MB4994.eurprd04.prod.outlook.com (2603:10a6:208:c7::15) authentication-results: spf=none (sender IP is ) smtp.mailfrom=ruxandra.radulescu@nxp.com; x-ms-exchange-messagesentrepresentingtype: 1 x-mailer: git-send-email 2.7.4 x-originating-ip: [86.34.165.90] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1; 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A:1; MX:1; received-spf: None (protection.outlook.com: nxp.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: zicxbgbGMLE3GTMJgYWlJcqbh/x92KT26bRyXEiR54v+0rolWHMl84gq1wp2YHrpbGEdTTO0yLEVzoe2Fm4AoEpiuEcFotnNUDttS0372dxDMWKGKjA6j7LqzhkSQpu5LabAN5DlB3EsLw5fNFq2zcBGb1atd6Uqk0q4joomyG3FVfNIrrEtkJ9nL1uq+EovAj2ln1BXYAaSYTeuU371wpi0rNOoX7NQAgfReHr0FJqOG92VjTipeiFPAQnISNXvJVjpZYPhHW6OCoiSNW96ioNoVSt3sZ+NOr9UDrr2H/kpmmMHAQdfHFNWZEMfIyQM7EcYBuK1rnYM35j+vz9ifVOyGxUMb7Z+YOBJIAutsST8SMb6p/31yYfLaVPNt7F3sJAHq44jKJf+P+fw5na/24FroQ4EF0iQhhLTC3jlKe4= MIME-Version: 1.0 X-OriginatorOrg: nxp.com X-MS-Exchange-CrossTenant-Network-Message-Id: 311a4a39-0149-4dc0-e0c6-08d68ac248d9 X-MS-Exchange-CrossTenant-originalarrivaltime: 04 Feb 2019 17:00:36.6468 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-mailboxtype: HOSTED X-MS-Exchange-CrossTenant-id: 686ea1d3-bc2b-4c6f-a92c-d99c5c301635 X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM0PR04MB4148 Sender: netdev-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org Add more buffers to the Rx buffer pool as soon as 7 of them get consumed, instead of waiting for their number to drop below a fixed threshold. 7 is the number of buffers that can be released in the pool via a single DPIO command. Signed-off-by: Ioana Radulescu --- drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h index 3e29dec..9510928 100644 --- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h +++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.h @@ -53,7 +53,8 @@ */ #define DPAA2_ETH_MAX_FRAMES_PER_QUEUE (DPAA2_ETH_TAILDROP_THRESH / 64) #define DPAA2_ETH_NUM_BUFS (DPAA2_ETH_MAX_FRAMES_PER_QUEUE + 256) -#define DPAA2_ETH_REFILL_THRESH DPAA2_ETH_MAX_FRAMES_PER_QUEUE +#define DPAA2_ETH_REFILL_THRESH \ + (DPAA2_ETH_NUM_BUFS - DPAA2_ETH_BUFS_PER_CMD) /* Maximum number of buffers that can be acquired/released through a single * QBMan command