From f191225719c3abd04d12ec59951bc47bdf726d71 Mon Sep 17 00:00:00 2001 From: Tadeusz Struk Date: Sun, 25 Sep 2016 07:44:30 -0700 Subject: [PATCH] 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 Reviewed-by: Sebastian Sanchez Reviewed-by: Jianxin Xiong Signed-off-by: Tadeusz Struk Signed-off-by: Dennis Dalessandro Signed-off-by: Doug Ledford --- drivers/infiniband/hw/hfi1/sysfs.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hfi1/sysfs.c b/drivers/infiniband/hw/hfi1/sysfs.c index 836eea58e4ff..edba22461a9c 100644 --- a/drivers/infiniband/hw/hfi1/sysfs.c +++ b/drivers/infiniband/hw/hfi1/sysfs.c @@ -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 }; /* -- 2.11.0