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Thu, 18 Dec 2025 07:58:41 -0800 From: Edward Srouji To: , Leon Romanovsky , Saeed Mahameed , Tariq Toukan , Mark Bloch , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Jason Gunthorpe CC: , , , Or Har-Toov , "Maher Sanalla" Subject: [PATCH rdma-next 07/10] IB/core: Refactor rate_show to use ib_port_attr_to_rate() Date: Thu, 18 Dec 2025 17:58:40 +0200 Message-ID: <20251218-vf-bw-lag-mode-v1-7-7d8ed4368bea@nvidia.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20251218-vf-bw-lag-mode-v1-0-7d8ed4368bea@nvidia.com> References: <20251218-vf-bw-lag-mode-v1-0-7d8ed4368bea@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1766069544; l=2446; i=edwards@nvidia.com; s=20251029; h=from:subject:message-id; bh=Md6wwD2353IEpn8JKq+dnoNCt45o17nRbOe4CnJ9/OI=; b=ENmc5pduIuIJyUri3JpOEaXXBPiKT6pU1aAwcwnxMv4DaG3O0LkdCpy+3cPqlqqbFRi7MbFBf 6DVHOsJ4PvAC+AngZUAE0TbPbCIy4R4Iw37dd3958alj8v+3wrjoEO/ X-Developer-Key: i=edwards@nvidia.com; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 18 Dec 2025 15:59:01.9357 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: e72a5f4d-d642-4408-e5e7-08de3e4e5cdd X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: SJ5PEPF000001F6.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DS0PR12MB6389 From: Or Har-Toov Update sysfs rate_show() to rely on ib_port_attr_to_speed_info() for converting IB port speed and width attributes to data rate and speed string. Signed-off-by: Or Har-Toov Reviewed-by: Maher Sanalla Reviewed-by: Mark Bloch Signed-off-by: Edward Srouji --- drivers/infiniband/core/sysfs.c | 56 ++++++-------------------------------= ---- 1 file changed, 8 insertions(+), 48 deletions(-) diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysf= s.c index 0ed862b38b44..bfaca07933d8 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -292,62 +292,22 @@ static ssize_t cap_mask_show(struct ib_device *ibdev,= u32 port_num, static ssize_t rate_show(struct ib_device *ibdev, u32 port_num, struct ib_port_attribute *unused, char *buf) { + struct ib_port_speed_info speed_info; struct ib_port_attr attr; - char *speed =3D ""; - int rate; /* in deci-Gb/sec */ ssize_t ret; =20 ret =3D ib_query_port(ibdev, port_num, &attr); if (ret) return ret; =20 - switch (attr.active_speed) { - case IB_SPEED_DDR: - speed =3D " DDR"; - rate =3D 50; - break; - case IB_SPEED_QDR: - speed =3D " QDR"; - rate =3D 100; - break; - case IB_SPEED_FDR10: - speed =3D " FDR10"; - rate =3D 100; - break; - case IB_SPEED_FDR: - speed =3D " FDR"; - rate =3D 140; - break; - case IB_SPEED_EDR: - speed =3D " EDR"; - rate =3D 250; - break; - case IB_SPEED_HDR: - speed =3D " HDR"; - rate =3D 500; - break; - case IB_SPEED_NDR: - speed =3D " NDR"; - rate =3D 1000; - break; - case IB_SPEED_XDR: - speed =3D " XDR"; - rate =3D 2000; - break; - case IB_SPEED_SDR: - default: /* default to SDR for invalid rates */ - speed =3D " SDR"; - rate =3D 25; - break; - } - - rate *=3D ib_width_enum_to_int(attr.active_width); - if (rate < 0) - return -EINVAL; + ret =3D ib_port_attr_to_speed_info(&attr, &speed_info); + if (ret) + return ret; =20 - return sysfs_emit(buf, "%d%s Gb/sec (%dX%s)\n", rate / 10, - rate % 10 ? ".5" : "", - ib_width_enum_to_int(attr.active_width), speed); + return sysfs_emit(buf, "%d%s Gb/sec (%dX%s)\n", speed_info.rate / 10, + speed_info.rate % 10 ? ".5" : "", + ib_width_enum_to_int(attr.active_width), + speed_info.str); } =20 static const char *phys_state_to_str(enum ib_port_phys_state phys_state) --=20 2.47.1