From: Tadeusz Struk <tadeusz.struk@xxxxxxxxx> 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@xxxxxxxxx> Reviewed-by: Sebastian Sanchez <sebastian.sanchez@xxxxxxxxx> Reviewed-by: Jianxin Xiong <jianxin.xiong@xxxxxxxxx> Signed-off-by: Tadeusz Struk <tadeusz.struk@xxxxxxxxx> Signed-off-by: Dennis Dalessandro <dennis.dalessandro@xxxxxxxxx> --- drivers/infiniband/hw/hfi1/sysfs.c | 15 ++++++++++++++- 1 files changed, 14 insertions(+), 1 deletions(-) diff --git a/drivers/infiniband/hw/hfi1/sysfs.c b/drivers/infiniband/hw/hfi1/sysfs.c index 836eea5..edba224 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 }; /* -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html