diff options
| author | Amir Vadai <amirv@mellanox.co.il> | 2012-08-03 12:40:47 +0400 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2012-10-01 07:33:36 +0400 |
| commit | 3cf69cc8dbebf15b99deb342ea422105ae9c2774 (patch) | |
| tree | 44147d3daafc44b3ff4cd1a4b0fe75876535e09e /drivers/infiniband/hw/mlx4/mad.c | |
| parent | b9c5d6a643589ad39064f652938baa698f0e884a (diff) | |
| download | linux-3cf69cc8dbebf15b99deb342ea422105ae9c2774.tar.xz | |
IB/mlx4: Add CM paravirtualization
In CM para-virtualization:
1. Incoming requests are steered to the correct vHCA according to the
embedded GID.
2. Communication IDs on outgoing requests are replaced by a globally
unique ID, generated by the PPF, since there is no synchronization
of ID generation between guests (and so these IDs are not
guaranteed to be globally unique). The guest's comm ID is stored,
and is returned to the response MAD when it arrives.
Signed-off-by: Amir Vadai <amirv@mellanox.co.il>
Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx4/mad.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/mad.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/mlx4/mad.c b/drivers/infiniband/hw/mlx4/mad.c index 29ed3b43e4a6..2f13894299ee 100644 --- a/drivers/infiniband/hw/mlx4/mad.c +++ b/drivers/infiniband/hw/mlx4/mad.c @@ -544,6 +544,10 @@ static int mlx4_ib_demux_mad(struct ib_device *ibdev, u8 port, (struct ib_sa_mad *) mad)) return 0; break; + case IB_MGMT_CLASS_CM: + if (mlx4_ib_demux_cm_handler(ibdev, port, &slave, mad)) + return 0; + break; case IB_MGMT_CLASS_DEVICE_MGMT: if (mad->mad_hdr.method != IB_MGMT_METHOD_GET_RESP) return 0; @@ -1076,6 +1080,11 @@ static void mlx4_ib_multiplex_mad(struct mlx4_ib_demux_pv_ctx *ctx, struct ib_wc (struct ib_sa_mad *) &tunnel->mad)) return; break; + case IB_MGMT_CLASS_CM: + if (mlx4_ib_multiplex_cm_handler(ctx->ib_dev, ctx->port, slave, + (struct ib_mad *) &tunnel->mad)) + return; + break; case IB_MGMT_CLASS_DEVICE_MGMT: if (tunnel->mad.mad_hdr.method != IB_MGMT_METHOD_GET && tunnel->mad.mad_hdr.method != IB_MGMT_METHOD_SET) @@ -1790,6 +1799,7 @@ int mlx4_ib_init_sriov(struct mlx4_ib_dev *dev) dev->sriov.is_going_down = 0; spin_lock_init(&dev->sriov.going_down_lock); + mlx4_ib_cm_paravirt_init(dev); mlx4_ib_warn(&dev->ib_dev, "multi-function enabled\n"); @@ -1818,6 +1828,7 @@ demux_err: mlx4_ib_free_demux_ctx(&dev->sriov.demux[i]); --i; } + mlx4_ib_cm_paravirt_clean(dev, -1); return err; } @@ -1833,7 +1844,7 @@ void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev) spin_lock_irqsave(&dev->sriov.going_down_lock, flags); dev->sriov.is_going_down = 1; spin_unlock_irqrestore(&dev->sriov.going_down_lock, flags); - if (mlx4_is_master(dev->dev)) + if (mlx4_is_master(dev->dev)) { for (i = 0; i < dev->num_ports; i++) { flush_workqueue(dev->sriov.demux[i].ud_wq); mlx4_ib_free_sqp_ctx(dev->sriov.sqps[i]); @@ -1841,4 +1852,7 @@ void mlx4_ib_close_sriov(struct mlx4_ib_dev *dev) dev->sriov.sqps[i] = NULL; mlx4_ib_free_demux_ctx(&dev->sriov.demux[i]); } + + mlx4_ib_cm_paravirt_clean(dev, -1); + } } |