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IB/hfi1: Limit VNIC use of SDMA engines to the available count

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VNIC assumes that all SDMA engines have been configured for use.  This is
not necessarily true (i.e. if the count was constrained by the module
parameter).

Update VNICs usage to use the configured count, rather than the hardware
count.

Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Gary Leshner <gary.s.leshner@intel.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Michael J. Ruhl 2018-11-28 10:19:25 -08:00 • committed by Jason Gunthorpe
parent fe4dd42392
commit dd6c6a5a2e
1 changed files with 2 additions and 2 deletions
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4
drivers/infiniband/hw/hfi1/vnic_main.c
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@ -816,14 +816,14 @@ struct net_device *hfi1_vnic_alloc_rn(struct ib_device *device,
size = sizeof(struct opa_vnic_rdma_netdev) + sizeof(*vinfo); size = sizeof(struct opa_vnic_rdma_netdev) + sizeof(*vinfo);
netdev = alloc_netdev_mqs(size, name, name_assign_type, setup, netdev = alloc_netdev_mqs(size, name, name_assign_type, setup,
chip_sdma_engines(dd), dd->num_vnic_contexts); dd->num_sdma, dd->num_vnic_contexts);
if (!netdev) if (!netdev)
return ERR_PTR(-ENOMEM); return ERR_PTR(-ENOMEM);
rn = netdev_priv(netdev); rn = netdev_priv(netdev);
vinfo = opa_vnic_dev_priv(netdev); vinfo = opa_vnic_dev_priv(netdev);
vinfo->dd = dd; vinfo->dd = dd;
vinfo->num_tx_q = chip_sdma_engines(dd); vinfo->num_tx_q = dd->num_sdma;
vinfo->num_rx_q = dd->num_vnic_contexts; vinfo->num_rx_q = dd->num_vnic_contexts;
vinfo->netdev = netdev; vinfo->netdev = netdev;
rn->free_rdma_netdev = hfi1_vnic_free_rn; rn->free_rdma_netdev = hfi1_vnic_free_rn;