From 3e153a93a1c12e3354dd38cca414fb51a15136a2 Mon Sep 17 00:00:00 2001 From: Ira Weiny Date: Fri, 18 Dec 2015 10:59:44 +0200 Subject: [PATCH] IB/core: Save the device attributes on the device structure This way both the IB core and upper level drivers can access these cached device attributes rather than querying or caching them on their own. Signed-off-by: Ira Weiny Signed-off-by: Or Gerlitz Signed-off-by: Doug Ledford --- drivers/infiniband/core/device.c | 8 ++++++++ include/rdma/ib_verbs.h | 1 + 2 files changed, 9 insertions(+) diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 179e8134d57f..568592e31b44 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -325,6 +325,7 @@ int ib_register_device(struct ib_device *device, { int ret; struct ib_client *client; + struct ib_udata uhw = {.outlen = 0, .inlen = 0}; mutex_lock(&device_mutex); @@ -352,6 +353,13 @@ int ib_register_device(struct ib_device *device, goto out; } + memset(&device->attrs, 0, sizeof(device->attrs)); + ret = device->query_device(device, &device->attrs, &uhw); + if (ret) { + printk(KERN_WARNING "Couldn't query the device attributes\n"); + goto out; + } + ret = ib_device_register_sysfs(device, port_callback); if (ret) { printk(KERN_WARNING "Couldn't register device %s with driver model\n", diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 120da1d7f57e..730dcfb209b9 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1823,6 +1823,7 @@ struct ib_device { u16 is_switch:1; u8 node_type; u8 phys_port_cnt; + struct ib_device_attr attrs; /** * The following mandatory functions are used only at device -- 2.20.1