qed: Add VF->PF channel infrastructure

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Communication between VF and PF is based on a dedicated HW channel;
VF will prepare a messge, and by signaling the HW the PF would get a
notification of that message existance. The PF would then copy the
message, process it and DMA an answer back to the VF as a response.

The messages themselves are TLV-based - allowing easier backward/forward
compatibility.

This patch adds the infrastructure of the channel on the PF side -
starting with the arrival of the notification and ending with DMAing
the response back to the VF.

It also adds a dummy-response as reference, as it only lays the
groundwork of the communication; it doesn't really add support of any
actual messages.

Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Yuval Mintz 2016-05-11 16:36:13 +03:00 • committed by David S. Miller

parent 32a47e72c9

commit 37bff2b9c6

10 changed files with 585 additions and 15 deletions

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5

include/linux/qed/common_hsi.h

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