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IB/hfi1: Virtual Network Interface Controller (VNIC) HW support

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HFI1 HW specific support for VNIC functionality.
Dynamically allocate a set of contexts for VNIC when the first vnic
port is instantiated. Allocate VNIC contexts from user contexts pool
and return them back to the same pool while freeing up. Set aside
enough MSI-X interrupts for VNIC contexts and assign them when the
contexts are allocated. On the receive side, use an RSM rule to
spread TCP/UDP streams among VNIC contexts.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Signed-off-by: Andrzej Kacprowski <andrzej.kacprowski@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Vishwanathapura, Niranjana
2017-04-12 20:29:29 -07:00
committed by Doug Ledford
parent d4829ea603
commit 2280740f01
18 changed files with 661 additions and 105 deletions
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6
drivers/infiniband/hw/hfi1/verbs.c
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@@ -61,6 +61,7 @@
#include "qp.h"
#include "verbs_txreq.h"
#include "debugfs.h"
#include "vnic.h"
static unsigned int hfi1_lkey_table_size = 16;
module_param_named(lkey_table_size, hfi1_lkey_table_size, uint,
@@ -1289,7 +1290,8 @@ static void hfi1_fill_device_attr(struct hfi1_devdata *dd)
IB_DEVICE_BAD_QKEY_CNTR | IB_DEVICE_SHUTDOWN_PORT |
IB_DEVICE_SYS_IMAGE_GUID | IB_DEVICE_RC_RNR_NAK_GEN |
IB_DEVICE_PORT_ACTIVE_EVENT | IB_DEVICE_SRQ_RESIZE |
IB_DEVICE_MEM_MGT_EXTENSIONS;
IB_DEVICE_MEM_MGT_EXTENSIONS |
IB_DEVICE_RDMA_NETDEV_OPA_VNIC;
rdi->dparms.props.page_size_cap = PAGE_SIZE;
rdi->dparms.props.vendor_id = dd->oui1 << 16 | dd->oui2 << 8 | dd->oui3;
rdi->dparms.props.vendor_part_id = dd->pcidev->device;
@@ -1772,6 +1774,8 @@ int hfi1_register_ib_device(struct hfi1_devdata *dd)
ibdev->modify_device = modify_device;
ibdev->alloc_hw_stats = alloc_hw_stats;
ibdev->get_hw_stats = get_hw_stats;
ibdev->alloc_rdma_netdev = hfi1_vnic_alloc_rn;
ibdev->free_rdma_netdev = hfi1_vnic_free_rn;
/* keep process mad in the driver */
ibdev->process_mad = hfi1_process_mad;