diff options
| author | Vishwanathapura, Niranjana <niranjana.vishwanathapura@intel.com> | 2017-04-13 06:29:30 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-04-20 22:19:41 +0300 |
| commit | 64551ede6cd1c9f814951914e23ef1d2a9498f71 (patch) | |
| tree | b1b8f80c4edf3fe578631884895de697902cf9f8 /drivers/infiniband/hw/hfi1/vnic.h | |
| parent | 2280740f01aee0883a2885f332aee27449390a4b (diff) | |
| download | linux-64551ede6cd1c9f814951914e23ef1d2a9498f71.tar.xz | |
IB/hfi1: VNIC SDMA support
HFI1 VNIC SDMA support enables transmission of VNIC packets over SDMA.
Map VNIC queues to SDMA engines and support halting and wakeup of the
VNIC queues.
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: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/vnic.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/vnic.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/vnic.h b/drivers/infiniband/hw/hfi1/vnic.h index 9bed40d85cff..e2c455299b53 100644 --- a/drivers/infiniband/hw/hfi1/vnic.h +++ b/drivers/infiniband/hw/hfi1/vnic.h @@ -49,6 +49,7 @@ #include <rdma/opa_vnic.h> #include "hfi.h" +#include "sdma.h" #define HFI1_VNIC_MAX_TXQ 16 #define HFI1_VNIC_MAX_PAD 12 @@ -85,6 +86,26 @@ #define HFI1_VNIC_MAX_QUEUE 16 /** + * struct hfi1_vnic_sdma - VNIC per Tx ring SDMA information + * @dd - device data pointer + * @sde - sdma engine + * @vinfo - vnic info pointer + * @wait - iowait structure + * @stx - sdma tx request + * @state - vnic Tx ring SDMA state + * @q_idx - vnic Tx queue index + */ +struct hfi1_vnic_sdma { + struct hfi1_devdata *dd; + struct sdma_engine *sde; + struct hfi1_vnic_vport_info *vinfo; + struct iowait wait; + struct sdma_txreq stx; + unsigned int state; + u8 q_idx; +}; + +/** * struct hfi1_vnic_rx_queue - HFI1 VNIC receive queue * @idx: queue index * @vinfo: pointer to vport information @@ -111,6 +132,7 @@ struct hfi1_vnic_rx_queue { * @vesw_id: virtual switch id * @rxq: Array of receive queues * @stats: per queue stats + * @sdma: VNIC SDMA structure per TXQ */ struct hfi1_vnic_vport_info { struct hfi1_devdata *dd; @@ -126,6 +148,7 @@ struct hfi1_vnic_vport_info { struct hfi1_vnic_rx_queue rxq[HFI1_NUM_VNIC_CTXT]; struct opa_vnic_stats stats[HFI1_VNIC_MAX_QUEUE]; + struct hfi1_vnic_sdma sdma[HFI1_VNIC_MAX_TXQ]; }; #define v_dbg(format, arg...) \ @@ -138,8 +161,13 @@ struct hfi1_vnic_vport_info { /* vnic hfi1 internal functions */ void hfi1_vnic_setup(struct hfi1_devdata *dd); void hfi1_vnic_cleanup(struct hfi1_devdata *dd); +int hfi1_vnic_txreq_init(struct hfi1_devdata *dd); +void hfi1_vnic_txreq_deinit(struct hfi1_devdata *dd); void hfi1_vnic_bypass_rcv(struct hfi1_packet *packet); +void hfi1_vnic_sdma_init(struct hfi1_vnic_vport_info *vinfo); +bool hfi1_vnic_sdma_write_avail(struct hfi1_vnic_vport_info *vinfo, + u8 q_idx); /* vnic rdma netdev operations */ struct net_device *hfi1_vnic_alloc_rn(struct ib_device *device, |