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IB/core: Add generic function to extract IB speed from netdev

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Logic of retrieving netdev speed from net_device and translating it to
IB speed is implemented in rxe, in usnic and in bnxt drivers.

Define new function which merges all.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Christian Benvenuti <benve@cisco.com>
Reviewed-by: Selvin Xavier <selvin.xavier@broadcom.com>
Reviewed-by: Moni Shoua <monis@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Yuval Shaia
2017-06-14 23:13:34 +03:00
committed by Doug Ledford
parent 44b0b7455f
commit d41861942f
6 changed files with 73 additions and 118 deletions
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31
drivers/infiniband/hw/usnic/usnic_ib_verbs.c
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@@ -226,27 +226,6 @@ static void qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp)
spin_unlock(&vf->lock);
}
static void eth_speed_to_ib_speed(int speed, u8 *active_speed,
u8 *active_width)
{
if (speed <= 10000) {
*active_width = IB_WIDTH_1X;
*active_speed = IB_SPEED_FDR10;
} else if (speed <= 20000) {
*active_width = IB_WIDTH_4X;
*active_speed = IB_SPEED_DDR;
} else if (speed <= 30000) {
*active_width = IB_WIDTH_4X;
*active_speed = IB_SPEED_QDR;
} else if (speed <= 40000) {
*active_width = IB_WIDTH_4X;
*active_speed = IB_SPEED_FDR10;
} else {
*active_width = IB_WIDTH_4X;
*active_speed = IB_SPEED_EDR;
}
}
static int create_qp_validate_user_data(struct usnic_ib_create_qp_cmd cmd)
{
if (cmd.spec.trans_type <= USNIC_TRANSPORT_UNKNOWN ||
@@ -326,12 +305,16 @@ int usnic_ib_query_port(struct ib_device *ibdev, u8 port,
struct ib_port_attr *props)
{
struct usnic_ib_dev *us_ibdev = to_usdev(ibdev);
struct ethtool_link_ksettings cmd;
usnic_dbg("\n");
mutex_lock(&us_ibdev->usdev_lock);
__ethtool_get_link_ksettings(us_ibdev->netdev, &cmd);
if (!ib_get_eth_speed(ibdev, port, &props->active_speed,
&props->active_width)) {
mutex_unlock(&us_ibdev->usdev_lock);
return -EINVAL;
}
/* props being zeroed by the caller, avoid zeroing it here */
props->lid = 0;
@@ -355,8 +338,6 @@ int usnic_ib_query_port(struct ib_device *ibdev, u8 port,
props->pkey_tbl_len = 1;
props->bad_pkey_cntr = 0;
props->qkey_viol_cntr = 0;
eth_speed_to_ib_speed(cmd.base.speed, &props->active_speed,
&props->active_width);
props->max_mtu = IB_MTU_4096;
props->active_mtu = iboe_get_mtu(us_ibdev->ufdev->mtu);
/* Userspace will adjust for hdrs */