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Thu, 18 Jul 2024 15:40:57 -0500 From: Ben Levinsky To: , , , Subject: [PATCH v2] mailbox: zynqmp-ipi: Make polling period configurable Date: Thu, 18 Jul 2024 13:40:57 -0700 Message-ID: <20240718204057.307655-1-ben.levinsky@amd.com> X-Mailer: git-send-email 2.25.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: None (SATLEXMB05.amd.com: ben.levinsky@amd.com does not designate permitted sender hosts) X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: DS1PEPF00017093:EE_|MN0PR12MB5980:EE_ X-MS-Office365-Filtering-Correlation-Id: 9e57faa4-e20a-46fe-047c-08dca769ee7d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|36860700013|1800799024|376014|82310400026; X-Microsoft-Antispam-Message-Info: =?us-ascii?Q?G/VCElyyEXw8F8sVDJ6ZElxxu0xX5+bM3VVCopnVv4U7xIMSKtnkXlBiVoAd?= =?us-ascii?Q?dpT0qRCCC8BBeZoPTprch4R6u4Pu86+EqrMieN7xJipuXwrC0ZHDEaqJx+bO?= =?us-ascii?Q?fNApiA5v8olIgm6XR/4LAUdssfnq3rs6a/Vt+45aSdoawntoC/fUe8CaYcb/?= =?us-ascii?Q?sIx/ipY/wtM1xd6swuNPNG6QXNgexX1Dt0qnRHzwtiDIGtvtpmTzzUT7hJS1?= =?us-ascii?Q?Y0QBjBPb2M/fAPBYp7911m+5qpS/mon+4J6zrx8mLsQWTBlHJCI6hSc5FyCj?= =?us-ascii?Q?wK7u8vDtxLMT2D8IM7KyXWiO0xTznkeje3jhrOo7wSr+p8rxyLxAPiD/L0g8?= =?us-ascii?Q?Jb/Uyg2kzF3mj+xqyfKINdTWwEoGZFLWvYm/YkiNOfxB29wf5J/SDt8UjC0f?= =?us-ascii?Q?/UlddNIu/rF0ptlYZuVqPJYot52b9ULDJfFKby/T0w3TkByin30R7FOZ6Pj2?= =?us-ascii?Q?0Tm/9ut+1ZnDZ6HoQ8p1qMv7yRuyAx1vA3bwNCaxJk5GRhA1wiGE8NL5fxA4?= =?us-ascii?Q?RE2+0Y5nyD+ASefa7bXVOQ4MLGD0RQckfLsU+weMJblbP15nLKYj3c+tzDnG?= =?us-ascii?Q?l13YR10LT5Xa+VLCh/GUbri+Wr5bOv3pkbks11mJZh5iw0GVWtUMOwrfPJWT?= =?us-ascii?Q?Z2pDZMM+WKTJrhReUy60WomMnvThFPloS1f/tdGRXm4HSr2Dgvvsd4UT3f+Q?= =?us-ascii?Q?MZZoC2IhG+r75MqqWKjDGtIAAlm5yXo1fjQJHcMs83vU7n/hvfWjT5x3ZLik?= =?us-ascii?Q?OBuJ78izOccaWK5+sMOkkbdDUfboGd34AUdEiHH6VUm3T0Q99OD6AMApdE5h?= =?us-ascii?Q?98JiyVG/h2+Gz5CXd9UZprvL9PH4sY/I11i7dYycZUdRkzQkkb4DaS4z0Lg/?= =?us-ascii?Q?R912A7544kbz+InJQKl6JeNXg93wVYlZ5dRqXjR6Aen8rIn3Z/54TGfZH7uq?= =?us-ascii?Q?oxvHq7Do3KygrFw3HEu/qWNuj2uNuUUGZwiLwqbJestRhYouRmek4gx4pZWh?= =?us-ascii?Q?+vhc6999WzaMBy5+FkyZbKsIjNQb3VJLZaQ1MjN+3zVhca5PrYF9HIkgBbIy?= =?us-ascii?Q?kIh+LozG43ehC6lQZ20TCsZYzLtPlrhTcL02vTj/l+NpEPrU0SMIQlhE/XxD?= =?us-ascii?Q?lEn198YUh/0LJZCt7Kv4/zwJhRA2PL3+PU4Cnj4n5zIiuR5S7sPfYi5WRoza?= =?us-ascii?Q?UglJFepTsztvU2bHam7rypNWv8WQgIhlYKnaGGJzNvowXnDjcnSBfIA2QbRu?= =?us-ascii?Q?TTkkQdyxvFkhvbKWz8Xj98nf6wgo2A9KOL8IZzNmUlL/FRmhTCvVsSaYyDnD?= =?us-ascii?Q?kcUNb7EQGurR7y4nEcT3S4Bgk63M81TY6X8b3pzgxKNxnY7KEEPIPquyQ9Ja?= =?us-ascii?Q?ecKgMG/OFekUN+A3AKAmVEIt8MehjgRmyTuAdtecnRJ88pp3OQrbxPIiBsR+?= =?us-ascii?Q?0epAvRDcppNvEJR8CaO6akE2WYg66tyi?= X-Forefront-Antispam-Report: CIP:165.204.84.17;CTRY:US;LANG:en;SCL:1;SRV:;IPV:CAL;SFV:NSPM;H:SATLEXMB04.amd.com;PTR:InfoDomainNonexistent;CAT:NONE;SFS:(13230040)(36860700013)(1800799024)(376014)(82310400026);DIR:OUT;SFP:1101; X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Jul 2024 20:40:59.2311 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 9e57faa4-e20a-46fe-047c-08dca769ee7d 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=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: DS1PEPF00017093.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN0PR12MB5980 Content-Type: text/plain; charset="utf-8" There are cases where remote that is acking mailbox message can take longer than the default tx_poll_period value. Therefore, enable this to be mutable. Added tx_poll_period field while inserting the module to set the poll period for ack after sending mailbox message. Signed-off-by: Ben Levinsky Acked-by: Michal Simek --- v2: Made param a module_param_named mutable arg as opposed to compiled opti= on --- drivers/mailbox/zynqmp-ipi-mailbox.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) diff --git a/drivers/mailbox/zynqmp-ipi-mailbox.c b/drivers/mailbox/zynqmp-= ipi-mailbox.c index 4acf5612487c..521d08b9ab47 100644 --- a/drivers/mailbox/zynqmp-ipi-mailbox.c +++ b/drivers/mailbox/zynqmp-ipi-mailbox.c @@ -64,6 +64,13 @@ =20 #define MAX_SGI 16 =20 +/* + * Module parameters + */ +static int tx_poll_period =3D 5; +module_param_named(tx_poll_period, tx_poll_period, int, 0644); +MODULE_PARM_DESC(tx_poll_period, "Poll period waiting for ack after send."= ); + /** * struct zynqmp_ipi_mchan - Description of a Xilinx ZynqMP IPI mailbox ch= annel * @is_opened: indicate if the IPI channel is opened @@ -537,7 +544,7 @@ static int zynqmp_ipi_mbox_probe(struct zynqmp_ipi_mbox= *ipi_mbox, mbox->num_chans =3D 2; mbox->txdone_irq =3D false; mbox->txdone_poll =3D true; - mbox->txpoll_period =3D 5; + mbox->txpoll_period =3D tx_poll_period; mbox->of_xlate =3D zynqmp_ipi_of_xlate; chans =3D devm_kzalloc(mdev, 2 * sizeof(*chans), GFP_KERNEL); if (!chans) --=20 2.25.1