diff options
Diffstat (limited to 'drivers/infiniband/core/verbs.c')
| -rw-r--r-- | drivers/infiniband/core/verbs.c | 109 |
1 files changed, 88 insertions, 21 deletions
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c index b99b3cc283b6..41ff5595c860 100644 --- a/drivers/infiniband/core/verbs.c +++ b/drivers/infiniband/core/verbs.c @@ -1880,6 +1880,89 @@ int ib_modify_qp_with_udata(struct ib_qp *ib_qp, struct ib_qp_attr *attr, } EXPORT_SYMBOL(ib_modify_qp_with_udata); +static void ib_get_width_and_speed(u32 netdev_speed, u32 lanes, + u16 *speed, u8 *width) +{ + if (!lanes) { + if (netdev_speed <= SPEED_1000) { + *width = IB_WIDTH_1X; + *speed = IB_SPEED_SDR; + } else if (netdev_speed <= SPEED_10000) { + *width = IB_WIDTH_1X; + *speed = IB_SPEED_FDR10; + } else if (netdev_speed <= SPEED_20000) { + *width = IB_WIDTH_4X; + *speed = IB_SPEED_DDR; + } else if (netdev_speed <= SPEED_25000) { + *width = IB_WIDTH_1X; + *speed = IB_SPEED_EDR; + } else if (netdev_speed <= SPEED_40000) { + *width = IB_WIDTH_4X; + *speed = IB_SPEED_FDR10; + } else if (netdev_speed <= SPEED_50000) { + *width = IB_WIDTH_2X; + *speed = IB_SPEED_EDR; + } else if (netdev_speed <= SPEED_100000) { + *width = IB_WIDTH_4X; + *speed = IB_SPEED_EDR; + } else if (netdev_speed <= SPEED_200000) { + *width = IB_WIDTH_4X; + *speed = IB_SPEED_HDR; + } else { + *width = IB_WIDTH_4X; + *speed = IB_SPEED_NDR; + } + + return; + } + + switch (lanes) { + case 1: + *width = IB_WIDTH_1X; + break; + case 2: + *width = IB_WIDTH_2X; + break; + case 4: + *width = IB_WIDTH_4X; + break; + case 8: + *width = IB_WIDTH_8X; + break; + case 12: + *width = IB_WIDTH_12X; + break; + default: + *width = IB_WIDTH_1X; + } + + switch (netdev_speed / lanes) { + case SPEED_2500: + *speed = IB_SPEED_SDR; + break; + case SPEED_5000: + *speed = IB_SPEED_DDR; + break; + case SPEED_10000: + *speed = IB_SPEED_FDR10; + break; + case SPEED_14000: + *speed = IB_SPEED_FDR; + break; + case SPEED_25000: + *speed = IB_SPEED_EDR; + break; + case SPEED_50000: + *speed = IB_SPEED_HDR; + break; + case SPEED_100000: + *speed = IB_SPEED_NDR; + break; + default: + *speed = IB_SPEED_SDR; + } +} + int ib_get_eth_speed(struct ib_device *dev, u32 port_num, u16 *speed, u8 *width) { int rc; @@ -1904,29 +1987,13 @@ int ib_get_eth_speed(struct ib_device *dev, u32 port_num, u16 *speed, u8 *width) netdev_speed = lksettings.base.speed; } else { netdev_speed = SPEED_1000; - pr_warn("%s speed is unknown, defaulting to %u\n", netdev->name, - netdev_speed); + if (rc) + pr_warn("%s speed is unknown, defaulting to %u\n", + netdev->name, netdev_speed); } - if (netdev_speed <= SPEED_1000) { - *width = IB_WIDTH_1X; - *speed = IB_SPEED_SDR; - } else if (netdev_speed <= SPEED_10000) { - *width = IB_WIDTH_1X; - *speed = IB_SPEED_FDR10; - } else if (netdev_speed <= SPEED_20000) { - *width = IB_WIDTH_4X; - *speed = IB_SPEED_DDR; - } else if (netdev_speed <= SPEED_25000) { - *width = IB_WIDTH_1X; - *speed = IB_SPEED_EDR; - } else if (netdev_speed <= SPEED_40000) { - *width = IB_WIDTH_4X; - *speed = IB_SPEED_FDR10; - } else { - *width = IB_WIDTH_4X; - *speed = IB_SPEED_EDR; - } + ib_get_width_and_speed(netdev_speed, lksettings.lanes, + speed, width); return 0; } |