diff options
| author | Tadeusz Struk <tadeusz.struk@intel.com> | 2016-07-25 22:39:27 +0200 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-08-02 22:00:58 +0200 |
| commit | b14db1f0aa4fccd0e5ebcbe588d1136f3a23dbc6 (patch) | |
| tree | e5d7ced2d9db2ba20a16bc0fca66763df3cb601d /drivers/infiniband/hw/hfi1/sysfs.c | |
| parent | IB/hfi1: Add static PCIe Gen3 CTLE tuning (diff) | |
| download | linux-b14db1f0aa4fccd0e5ebcbe588d1136f3a23dbc6.tar.xz linux-b14db1f0aa4fccd0e5ebcbe588d1136f3a23dbc6.zip | |
IB/hfi1: Add sysfs entry to override SDMA interrupt affinity
Add sysfs entry to allow user to override affinity for SDMA
engine interrupts.
Reviewed-by: Dean Luick <dean.luick@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 | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/sysfs.c b/drivers/infiniband/hw/hfi1/sysfs.c index 91fc2aed6aed..74c84c655f7e 100644 --- a/drivers/infiniband/hw/hfi1/sysfs.c +++ b/drivers/infiniband/hw/hfi1/sysfs.c @@ -49,6 +49,7 @@ #include "hfi.h" #include "mad.h" #include "trace.h" +#include "affinity.h" /* * Start of per-port congestion control structures and support code @@ -622,6 +623,27 @@ static ssize_t show_tempsense(struct device *device, return ret; } +static ssize_t show_sdma_affinity(struct device *device, + struct device_attribute *attr, char *buf) +{ + struct hfi1_ibdev *dev = + container_of(device, struct hfi1_ibdev, rdi.ibdev.dev); + struct hfi1_devdata *dd = dd_from_dev(dev); + + return hfi1_get_sdma_affinity(dd, buf); +} + +static ssize_t store_sdma_affinity(struct device *device, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct hfi1_ibdev *dev = + container_of(device, struct hfi1_ibdev, rdi.ibdev.dev); + struct hfi1_devdata *dd = dd_from_dev(dev); + + return hfi1_set_sdma_affinity(dd, buf, count); +} + /* * end of per-unit (or driver, in some cases, but replicated * per unit) functions @@ -636,6 +658,8 @@ static DEVICE_ATTR(serial, S_IRUGO, show_serial, NULL); static DEVICE_ATTR(boardversion, S_IRUGO, show_boardversion, NULL); static DEVICE_ATTR(tempsense, S_IRUGO, show_tempsense, NULL); static DEVICE_ATTR(chip_reset, S_IWUSR, NULL, store_chip_reset); +static DEVICE_ATTR(sdma_affinity, S_IWUSR | S_IRUGO, show_sdma_affinity, + store_sdma_affinity); static struct device_attribute *hfi1_attributes[] = { &dev_attr_hw_rev, @@ -646,6 +670,7 @@ static struct device_attribute *hfi1_attributes[] = { &dev_attr_boardversion, &dev_attr_tempsense, &dev_attr_chip_reset, + &dev_attr_sdma_affinity, }; int hfi1_create_port_files(struct ib_device *ibdev, u8 port_num, |