octeontx2-af: Configure block LF's MSIX vector offset
Firmware configures a certain number of MSIX vectors to each of enabled RVU PF/VF. When a block LF is attached to a PF/VF, number of MSIX vectors needed by that LF are set aside (out of PF/VF's total MSIX vectors) and LF's msix_offset is configured in HW. Also added support for a RVU PF/VF to retrieve that block LF's MSIX vector offset information from AF via mbox. Signed-off-by: Sunil Goutham <sgoutham@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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