diff options
| author | Marcel Apfelbaum <marcela@dev.mellanox.co.il> | 2011-10-05 14:21:47 +0300 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2011-10-11 11:53:47 -0700 |
| commit | 71eeba161d7611238ecb6f525a82325aa35339f0 (patch) | |
| tree | 97e4a2b1cf8754029ef0755cd67d1502659e2af1 /drivers/infiniband/core/sysfs.c | |
| parent | 976d167615b64e14bc1491ca51d424e2ba9a5e84 (diff) | |
IB: Add new InfiniBand link speeds
Introduce support for the following extended speeds:
FDR-10: a Mellanox proprietary link speed which is 10.3125 Gbps with
64b/66b encoding rather than 8b/10b encoding.
FDR: IBA extended speed 14.0625 Gbps.
EDR: IBA extended speed 25.78125 Gbps.
Signed-off-by: Marcel Apfelbaum <marcela@dev.mellanox.co.il>
Reviewed-by: Hal Rosenstock <hal@mellanox.com>
Reviewed-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/core/sysfs.c')
| -rw-r--r-- | drivers/infiniband/core/sysfs.c | 26 |
1 files changed, 22 insertions, 4 deletions
diff --git a/drivers/infiniband/core/sysfs.c b/drivers/infiniband/core/sysfs.c index 9ab5df72df7b..2b59b72b57f9 100644 --- a/drivers/infiniband/core/sysfs.c +++ b/drivers/infiniband/core/sysfs.c @@ -185,17 +185,35 @@ static ssize_t rate_show(struct ib_port *p, struct port_attribute *unused, if (ret) return ret; + rate = (25 * attr.active_speed) / 10; + switch (attr.active_speed) { - case 2: speed = " DDR"; break; - case 4: speed = " QDR"; break; + case 2: + speed = " DDR"; + break; + case 4: + speed = " QDR"; + break; + case 8: + speed = " FDR10"; + rate = 10; + break; + case 16: + speed = " FDR"; + rate = 14; + break; + case 32: + speed = " EDR"; + rate = 25; + break; } - rate = 25 * ib_width_enum_to_int(attr.active_width) * attr.active_speed; + rate *= ib_width_enum_to_int(attr.active_width); if (rate < 0) return -EINVAL; return sprintf(buf, "%d%s Gb/sec (%dX%s)\n", - rate / 10, rate % 10 ? ".5" : "", + rate, (attr.active_speed == 1) ? ".5" : "", ib_width_enum_to_int(attr.active_width), speed); } |