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| author | Tadeusz Struk <tadeusz.struk@intel.com> | 2016-09-25 07:44:30 -0700 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-10-02 08:42:18 -0400 |
| commit | f191225719c3abd04d12ec59951bc47bdf726d71 (patch) | |
| tree | f4fd5f0a573c9b0d7b4215449ab7a1d80d1fa014 /drivers/infiniband/hw/hfi1/sysfs.c | |
| parent | 0cb2aa690c7ef14ad1f544288349abb5434bb75d (diff) | |
| download | linux-stable-f191225719c3abd04d12ec59951bc47bdf726d71.tar.gz linux-stable-f191225719c3abd04d12ec59951bc47bdf726d71.tar.bz2 linux-stable-f191225719c3abd04d12ec59951bc47bdf726d71.zip | |
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>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/sysfs.c')
| -rw-r--r-- | 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 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 }; /* |