diff options
| author | Vishwanathapura, Niranjana <niranjana.vishwanathapura@intel.com> | 2017-04-12 20:29:28 -0700 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-04-20 12:03:12 -0400 |
| commit | d4829ea6035b89dcddfdcb72d325ca2139f23730 (patch) | |
| tree | 98c2c6711d7723bf8826ca38f6f420491eca16cf /drivers/infiniband/hw/hfi1/driver.c | |
| parent | 1bd671ab3fb99932fc8692463eabbb237b6bcef1 (diff) | |
| download | linux-d4829ea6035b89dcddfdcb72d325ca2139f23730.tar.gz | |
IB/hfi1: OPA_VNIC RDMA netdev support
Add support to create and free OPA_VNIC rdma netdev devices.
Implement netstack interface functionality including xmit_skb,
receive side NAPI etc. Also implement rdma netdev control functions.
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>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/driver.c')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/driver.c | 25 |
1 files changed, 21 insertions, 4 deletions
diff --git a/drivers/infiniband/hw/hfi1/driver.c b/drivers/infiniband/hw/hfi1/driver.c index 64bdbcef5f05..e4dc6a5997e5 100644 --- a/drivers/infiniband/hw/hfi1/driver.c +++ b/drivers/infiniband/hw/hfi1/driver.c @@ -1,5 +1,5 @@ /* - * Copyright(c) 2015, 2016 Intel Corporation. + * Copyright(c) 2015-2017 Intel Corporation. * * This file is provided under a dual BSD/GPLv2 license. When using or * redistributing this file, you may do so under either license. @@ -60,6 +60,7 @@ #include "qp.h" #include "sdma.h" #include "debugfs.h" +#include "vnic.h" #undef pr_fmt #define pr_fmt(fmt) DRIVER_NAME ": " fmt @@ -1381,15 +1382,31 @@ int process_receive_ib(struct hfi1_packet *packet) return RHF_RCV_CONTINUE; } +static inline bool hfi1_is_vnic_packet(struct hfi1_packet *packet) +{ + /* Packet received in VNIC context via RSM */ + if (packet->rcd->is_vnic) + return true; + + if ((HFI1_GET_L2_TYPE(packet->ebuf) == OPA_VNIC_L2_TYPE) && + (HFI1_GET_L4_TYPE(packet->ebuf) == OPA_VNIC_L4_ETHR)) + return true; + + return false; +} + int process_receive_bypass(struct hfi1_packet *packet) { struct hfi1_devdata *dd = packet->rcd->dd; - if (unlikely(rhf_err_flags(packet->rhf))) + if (unlikely(rhf_err_flags(packet->rhf))) { handle_eflags(packet); + } else if (hfi1_is_vnic_packet(packet)) { + hfi1_vnic_bypass_rcv(packet); + return RHF_RCV_CONTINUE; + } - dd_dev_err(dd, - "Bypass packets are not supported in normal operation. Dropping\n"); + dd_dev_err(dd, "Unsupported bypass packet. Dropping\n"); incr_cntr64(&dd->sw_rcv_bypass_packet_errors); if (!(dd->err_info_rcvport.status_and_code & OPA_EI_STATUS_SMASK)) { u64 *flits = packet->ebuf; |