Commit f1912257 authored Sep 25, 2016 by Tadeusz Struk Committed by Doug Ledford Oct 02, 2016

IB/hfi1: Add a new VL sysfs attribute for sdma engines



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>

parent 0cb2aa69

drivers/infiniband/hw/hfi1/sysfs.c

+14 −1

Original line number	Diff line number	Diff line
		@@ -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
		};

		/*