]> git.proxmox.com Git - mirror_ubuntu-kernels.git/commitdiff
IB/hfi1: Add a new VL sysfs attribute for sdma engines
authorTadeusz Struk <tadeusz.struk@intel.com>
Sun, 25 Sep 2016 14:44:30 +0000 (07:44 -0700)
committerDoug Ledford <dledford@redhat.com>
Sun, 2 Oct 2016 12:42:18 +0000 (08:42 -0400)
This patch adds a read-only "VL" attribute for the sysfs entry of each
sdma engine. It will allow the user to check VL to sdma engine mappings.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Reviewed-by: Jianxin Xiong <jianxin.xiong@intel.com>
Signed-off-by: Tadeusz Struk <tadeusz.struk@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
drivers/infiniband/hw/hfi1/sysfs.c

index 836eea58e4ffc562ba91b9ca53188d803e37b9f4..edba22461a9c16dc86af705b2b86952d9fb85867 100644 (file)
@@ -826,12 +826,25 @@ static ssize_t sde_store_cpu_to_sde_map(struct sdma_engine *sde,
        return sdma_set_cpu_to_sde_map(sde, buf, count);
 }
 
+static ssize_t sde_show_vl(struct sdma_engine *sde, char *buf)
+{
+       int vl;
+
+       vl = sdma_engine_get_vl(sde);
+       if (vl < 0)
+               return vl;
+
+       return snprintf(buf, PAGE_SIZE, "%d\n", vl);
+}
+
 static SDE_ATTR(cpu_list, S_IWUSR | S_IRUGO,
                sde_show_cpu_to_sde_map,
                sde_store_cpu_to_sde_map);
+static SDE_ATTR(vl, S_IRUGO, sde_show_vl, NULL);
 
 static struct sde_attribute *sde_attribs[] = {
-       &sde_attr_cpu_list
+       &sde_attr_cpu_list,
+       &sde_attr_vl
 };
 
 /*