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| author | Hal Rosenstock <hal@dev.mellanox.co.il> | 2015-12-29 05:43:43 -0500 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-01-19 15:26:20 -0500 |
| commit | 6e2a51a0f7c89a22169f366d23d5f213b7b7edaf (patch) | |
| tree | b6966c37251e92f14d2bf5a9a124acdbbb35e073 /drivers/infiniband | |
| parent | b6aeb980f1e143f3237365710290b199e9363eeb (diff) | |
| download | linux-6e2a51a0f7c89a22169f366d23d5f213b7b7edaf.tar.gz | |
IB/core: sysfs.c: Fix PerfMgt ClassPortInfo handling
Port number is not part of ClassPortInfo attribute but is
still needed as a parameter when invoking process_mad.
To properly handle this attribute, port_num is added as a
parameter to get_counter_table and get_perf_mad was changed
not to store port_num in the attribute itself when it's
querying the ClassPortInfo attribute.
This handles issue pointed out by Matan Barak <matanb@dev.mellanox.co.il>
Fixes: 145d9c541032 ('IB/core: Display extended counter set if available')
Signed-off-by: Hal Rosenstock <hal@mellanox.com>
Acked-by: Matan Barak <matanb@mellanox.com>
Acked-by: Ira Weiny <ira.weiny@intel.com>
Reviewed-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/core/sysfs.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index aed9b2d8e046..3de93517efe4 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -438,7 +438,8 @@ static int get_perf_mad(struct ib_device *dev, int port_num, __be16 attr, in_mad->mad_hdr.method = IB_MGMT_METHOD_GET; in_mad->mad_hdr.attr_id = attr; - in_mad->data[41] = port_num; /* PortSelect field */ + if (attr != IB_PMA_CLASS_PORT_INFO) + in_mad->data[41] = port_num; /* PortSelect field */ if ((dev->process_mad(dev, IB_MAD_IGNORE_MKEY, port_num, NULL, NULL, @@ -714,11 +715,12 @@ err: * Figure out which counter table to use depending on * the device capabilities. */ -static struct attribute_group *get_counter_table(struct ib_device *dev) +static struct attribute_group *get_counter_table(struct ib_device *dev, + int port_num) { struct ib_class_port_info cpi; - if (get_perf_mad(dev, 0, IB_PMA_CLASS_PORT_INFO, + if (get_perf_mad(dev, port_num, IB_PMA_CLASS_PORT_INFO, &cpi, 40, sizeof(cpi)) >= 0) { if (cpi.capability_mask && IB_PMA_CLASS_CAP_EXT_WIDTH) @@ -776,7 +778,7 @@ static int add_port(struct ib_device *device, int port_num, goto err_put; } - p->pma_table = get_counter_table(device); + p->pma_table = get_counter_table(device, port_num); ret = sysfs_create_group(&p->kobj, p->pma_table); if (ret) goto err_put_gid_attrs; |