WSL2-Linux-Kernel/include/linux/mlx4
Jack Morgenstein 47605df953 mlx4: Modify proxy/tunnel QP mechanism so that guests do no calculations
Previously, the structure of a guest's proxy QPs followed the
structure of the PPF special qps (qp0 port 1, qp0 port 2, qp1 port 1,
qp1 port 2, ...).  The guest then did offset calculations on the
sqp_base qp number that the PPF passed to it in QUERY_FUNC_CAP().

This is now changed so that the guest does no offset calculations
regarding proxy or tunnel QPs to use.  This change frees the PPF from
needing to adhere to a specific order in allocating proxy and tunnel
QPs.

Now QUERY_FUNC_CAP provides each port individually with its proxy
qp0, proxy qp1, tunnel qp0, and tunnel qp1 QP numbers, and these are
used directly where required (with no offset calculations).

To accomplish this change, several fields were added to the phys_caps
structure for use by the PPF and by non-SR-IOV mode:

    base_sqpn -- in non-sriov mode, this was formerly sqp_start.
    base_proxy_sqpn -- the first physical proxy qp number -- used by PPF
    base_tunnel_sqpn -- the first physical tunnel qp number -- used by PPF.

The current code in the PPF still adheres to the previous layout of
sqps, proxy-sqps and tunnel-sqps.  However, the PPF can change this
layout without affecting VF or (paravirtualized) PF code.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>
2012-09-30 20:33:43 -07:00
..
cmd.h net/mlx4_core: Add firmware commands to support device managed flow steering 2012-07-07 16:23:05 -07:00
cq.h mlx4_core: Add ethernet fields to CQE struct 2008-08-06 20:14:06 -07:00
device.h mlx4: Modify proxy/tunnel QP mechanism so that guests do no calculations 2012-09-30 20:33:43 -07:00
doorbell.h
driver.h IB/mlx4: Initialize SR-IOV IB support for slaves in master context 2012-09-30 20:33:32 -07:00
qp.h IB/mlx4: SR-IOV IB context objects and proxy/tunnel SQP support 2012-09-30 20:33:30 -07:00
srq.h